Jens-Petter Andreassen
+4773594209
+4792032209
Kjemi 4, 4.302, Gløshaugen, Sem Sælands vei 6
About
I am Head of Department of chemical engineering. Our department brings chemistry from the lab to industrial scale. We study chemical reactions and how we can affect their rate in order to improve the process design. This involves the understanding of chemistry and materials on nano level, interfaces between solid, liquid and gas phases, and how this affects the exchange of heat and mass in a processing plant. With this knowledge we formulate mathematical models and simulate different processes in large scale, which we can validate by experimental studies in our laboratories and pilot plant equipment. We have made a strategic decision to invest our efforts in sustainable solutions for the future. This implies that we increase our research in how to apply biological raw materials and biochemistry to develop energy, new materials and chemicals.
When I am not HoD I am professor at the department, specializing in industrial crystallization. In the crystallization group, we study precipitation and growth of solid particulate materials related to industrial production, for instance pharmaceutical products or mineral precipitates. The size and shape of the crystals are important for separation and quality of the final product and we focus our studies on the fundamental size enlargement process. We cooperate with industrial companies, but also perform fundamental studies of mineralization in biological systems, as for instance how bone formation happens in the human body.
Publications
2024
-
Ucar, Seniz;
Nielsen, Anne R.;
Mojsoska, Biljana;
Dideriksen, Knud;
Andreassen, Jens-Petter;
Zuckermann, Ronald N..
(2024)
Exploiting Saturation Regimes and Surface Effects to Tune Composite Design: Single Platelet Nanocomposites of Peptoid Nanosheets and CaCO<inf>3</inf>.
ACS Applied Materials & Interfaces
Academic article
2023
-
Ali, Zeeshan;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2023)
Fine-Tuning of Particle Size and Morphology of Silica Coated Iron Oxide Nanoparticles.
Industrial & Engineering Chemistry Research
Academic article
2021
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy
Academic article
2020
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere
Academic article
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Springer
Academic chapter/article/Conference paper
2019
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous
Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm
Academic article
2018
-
Bandyopadhyay, Sulalit;
McDonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters
Academic article
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Springer Nature
Academic chapter/article/Conference paper
2017
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications
Letter to the editor
2016
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia
Academic article
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of calcium carbonate on heated surfaces - Crystallization or particulate fouling?.
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials
Academic article
2015
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series
Academic article
2014
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology
Academic article
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology
Academic article
2013
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth
Academic article
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing
Academic article
-
Beck, Ralf;
Broby, Margrethe;
Andreassen, Jens-Petter.
(2013)
Crystal growth of calcite at conditions of gas processing in solvent mixtures of monoethylene glycol and water.
Transactions of Tianjin University
Academic article
2012
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia
Academic article
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials
Abstract
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel .
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of Materials Science: Materials in Medicine
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal Research & Technology
Academic article
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
Academic chapter/article/Conference paper
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine
Abstract
2011
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel ;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design
Academic article
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA)
Feature article
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology
Academic article
2010
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
Academic chapter/article/Conference paper
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia
Academic article
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print)
Academic article
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth
Academic article
2009
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth
Academic article
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Visual Arts
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel ;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design
Academic article
2008
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth
Academic article
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
Shaker Verlag
Academic chapter/article/Conference paper
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
Shaker Verlag
Academic chapter/article/Conference paper
2005
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth
Academic article
2004
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal
Academic article
2001
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
NTNU-trykk
Doctoral dissertation
Journal publications
-
Ucar, Seniz;
Nielsen, Anne R.;
Mojsoska, Biljana;
Dideriksen, Knud;
Andreassen, Jens-Petter;
Zuckermann, Ronald N..
(2024)
Exploiting Saturation Regimes and Surface Effects to Tune Composite Design: Single Platelet Nanocomposites of Peptoid Nanosheets and CaCO<inf>3</inf>.
ACS Applied Materials & Interfaces
Academic article
-
Ali, Zeeshan;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2023)
Fine-Tuning of Particle Size and Morphology of Silica Coated Iron Oxide Nanoparticles.
Industrial & Engineering Chemistry Research
Academic article
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals
Academic article
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy
Academic article
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere
Academic article
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances
Academic article
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology
Academic article
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous
Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm
Academic article
-
Bandyopadhyay, Sulalit;
McDonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications
Letter to the editor
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia
Academic article
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials
Academic article
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series
Academic article
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology
Academic article
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science
Academic article
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology
Academic article
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth
Academic article
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing
Academic article
-
Beck, Ralf;
Broby, Margrethe;
Andreassen, Jens-Petter.
(2013)
Crystal growth of calcite at conditions of gas processing in solvent mixtures of monoethylene glycol and water.
Transactions of Tianjin University
Academic article
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia
Academic article
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials
Abstract
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel .
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of Materials Science: Materials in Medicine
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal Research & Technology
Academic article
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions
Academic article
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine
Abstract
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel ;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design
Academic article
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA)
Feature article
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design
Academic article
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia
Academic article
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print)
Academic article
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal Research & Technology
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design
Academic article
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth
Academic article
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth
Academic article
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth
Academic article
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel ;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design
Academic article
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth
Academic article
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal
Academic article
Artistic productions
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel .
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Visual Arts
Part of book/report
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Springer
Academic chapter/article/Conference paper
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Springer Nature
Academic chapter/article/Conference paper
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of calcium carbonate on heated surfaces - Crystallization or particulate fouling?.
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
Academic chapter/article/Conference paper
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
Academic chapter/article/Conference paper
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
Shaker Verlag
Academic chapter/article/Conference paper
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
Shaker Verlag
Academic chapter/article/Conference paper
Report
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
NTNU-trykk
Doctoral dissertation
Teaching
Courses
- HMS0001 - HMS-kurs for 1. årsstudenter
- TKP4580 - Kjemisk prosessteknologi, fordypningsprosjekt
- TKP4570 - Nanoteknologi, fordypningsprosjekt
- TKP4581 - Kjemisk prosessteknologi, fordypningsprosjekt
- TKP4905 - Nanoteknologi, masteroppgave
- TKP4900 - Kjemisk prosessteknologi, masteroppgave
- TKP4901 - Kjemisk prosessteknologi, masteroppgave
- TKP4535 - Miljø- og reaktorteknologi, fordypningsemne
Outreach
2023
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Academic lectureJoshi, Bhaskar; Ucar, Seniz; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2023) Recovering Lithium Carbonate Using Gas -- Liquid Reactive Crystallization Of Lithium Hydroxide And Carbon Di-Oxide. KTH Royal Institute of Technology 28th BIWIC – International Workshop on Industrial Crystallization , Stockholm 2023-08-30 - 2023-09-01
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PosterAli, Zeeshan; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2023) Investigating the Change in Particle Size, Morphology and Magnetic Properties of Iron Oxide Nanoparticles. IIT Madras International Conference on Sustainable and Applied Nanotechnology for Agriculture and Health 2023-07-19 - 2023-07-21
2022
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LectureYounas, Daniyal; Ucar, Seniz; Wang, Lijuan; Andreassen, Jens-Petter; Chushkin, Yuriy; Breiby, Dag Werner. (2022) X-Ray Nanoscopy Reveals Oriented Growth of Seeded Calcium Carbonate Microparticles. NTNU TNNN Conference 2022 , Trondheim 2022-11-30 - 2022-12-02
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Academic lectureAli, Zeeshan; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2022) Influence of Iron Oxide Nanoparticles in Silanization. European Colloid & Interface Society and MKE 18th European Student Colloid Conference , Szeged 2022-06-26 - 2022-06-30
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PosterAli, Zeeshan; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2022) Control of Particle Size, Particle Size Distribution and Morphology of Silica Coated Iron Oxide Nanoparticles. European Colloid & Interface Society 36th European Colloid & Interface Society Conference , Chania, Crete 2022-09-04 - 2022-09-09
2020
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Academic lectureJenssen, Ina Beate; Ucar, Seniz; Bøckman, Oluf; Dotterud, Ole Morten; Andreassen, Jens-Petter. (2020) Impurity Uptake During Cooling Crystallization of Nickel Sulfate. The Minerals, Metals & Materials Society TMS 2020 - Rare Metal Technology 2020 , San Diego Convention Center, California 2020-02-23 - 2020-02-27
2018
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Academic lectureJenssen, Ina Beate; Aufles Hines, Mona; Dotterud, Ole Morten; Bøckman, Oluf; Andreassen, Jens-Petter. (2018) Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production . MetSoc, CIM, SME, and TMS Extraction 2018 - Hydrometallurgy 2018 , Ottawa 2018-08-26 - 2018-08-29
2017
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PosterAntony, Jibin; Raghunathan, Karthik; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2017) Understanding seed mediated growth and growth kinetics of anisotropic gold nanostructures. NTNU NanoLab Nano@NTNU Symposium 2017 , Trondheim 2017-12-06 - 2017-12-07
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LectureBjørnøy, Sindre Hove; Bassett, David; Schweikle, Manuel; Strand, Berit Løkensgard; Tiainen, Hanna; Ucar, Seniz. (2017) Bioinspired mineralization of hydrogels. European Materials Research Society European Materials Research Society Spring Meeting 2017 , Strasbourg 2017-05-21 - 2017-05-26
2016
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Academic lectureUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2016) Transformation Kinetics of Brushite to Hydroxyapatite. The 18th International conference on Crystal Growth and Epitaxy , Nagoya Congress Center 2016-08-07 - 2016-08-12
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LectureMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2016) Secondary Nucleation of Calcium Carbonate. The 18th International Conference on Crystal Growth and Epitaxy 2016-08-07 - 2016-08-12
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PosterRaghunathan, Karthik; Bandyopadhyay, Sulalit; McDonagh, Birgitte Hjelmeland; Andreassen, Jens-Petter. (2016) Tracking the Growth of Anisotropic Gold Nanostructures. NTNU NanoLab Nano@NTNU Symposium 2016 , Trondheim 2016-11-17 - 2016-11-18
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PosterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Sikorski, Pawel. (2016) Correlative microscopy and spectroscopy studies of calcium phosphate mineralization processes within alginate hydrogels. GRC Gordon Research Conference on Biomineralization , Girona 2016-08-14 - 2016-08-19
2015
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Academic lectureMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2015) Selection and Characterization of Phase-Change Solvents for Carbon Dioxide Capture: Precipitation Behavior. 8th Trondheim CCS Conference (TCCS-8) , Trondheim 2015-06-16 - 2015-06-18
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LectureBjørnøy, Sindre Hove; Bassett, David; Mandaric, Steffan; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Ucar, Seniz. (2015) Mineralisation of alginate hydrogels. Kyoto International Forum for Environment and Energy 8th Kyoto International Forum for Environment and Energy (KIFEE) , Trondheim 2015-09-20 - 2015-09-23
2014
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Academic lectureAndreassen, Jens-Petter. (2014) Aggregation or crystal growth? A comparison of calcium carbonate and barium sulphate precipitation. BACG 2014: Annual Conference of the British Association for Crystal Growth , Leeds 2014-07-13 - 2014-07-15
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PosterUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel ; Andreassen, Jens-Petter. (2014) Brushite Crystallization in Alginate Beads. ISC Granada 2014 2014-05-25 - 2014-05-30
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PosterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel . (2014) An investigation of acidic calcium phosphates in mineralised alginate hydrogels. Scandinavian Society for Biomaterials Scandinavian Society for Biomaterials, 7th annual meeting; , Århus 2014-03-24 - 2014-03-28
2013
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Academic lectureSingh, Gurvinder; Van Helvoort, Antonius; Bandyopadhyay, Sulalit; Volden, Sondre; Andreassen, Jens-Petter; Glomm, Wilhelm. (2013) Shape and Size Controlled Synthesis of Metal Nanostructures. NTNU Nanolab 8th Nanolab usermeeting , Trondheim 2013-11-12 - 2013-11-12
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PosterMa, Xiaoguang; Andreassen, Jens-Petter. (2013) Precipitation in CO2 Capture Processes. 20th International Workshop on Industrial Crystalliation (BIWIC 2013) 2013-09-18 - 2013-09-20
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Academic lectureMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2013) Selection and Characterization of Phase-Change Solvent for Carbon Dioxide Capture: Precipitation Behavior Study. The 7th Trondheim CCS Conference (TCCS-7) , Trondheim 2013-06-04 - 2013-06-06
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Academic lectureAndreassen, Jens-Petter; Beck, Ralf; Wang, Lijuan; Nergaard, Margrethe. (2013) The importance of supersaturation for the morphology development of calcium carbonate. XXII International Material Research Congress 2013 , Cancun 2013-08-11 - 2013-08-15
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PosterNergaard, Margrethe; Beck, Ralf; Hyllestad, Ketil; Andreassen, Jens-Petter. (2013) Scale formation on heated surfaces. 20th International Workshop on Industrial Crystallization (BIWIC2013) , Odense 2013-09-18 - 2013-09-20
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LectureBassett, David; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2013) Mineralised alginate based hydrogel composites for tissue engineering. University of Twente Advances in Tissue Regeneration 2013 Conference , Lattrop 2013-11-14 - 2013-11-15
2012
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Popular scientific lectureAndreassen, Jens-Petter. (2012) Hva har toppen av Mount Everest til felles med kråkeboller og innsiden av oljerør ?. Motivasjonsforedrag , NTNU, Trondheim 2012-02-28 -
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PosterWang, Lijuan; Beck, Ralf; Andreassen, Jens-Petter. (2012) The induction time and growth morphology of gold particles precipitated by reduction with ascorbic acid at different pH values. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) , Tianjin 2012-09-07 - 2012-09-09
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PosterBeck, Ralf; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Crystal Growth of Calcite at Conditions of Gas Processing. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) , Tianjin 2012-09-07 - 2012-09-09
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PosterMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2012) Crystal Growth Kinetics of Potassium Bicarbonate in Water. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) , Tianjin 2012-09-07 - 2012-09-09
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Academic lectureAndreassen, Jens-Petter; Nergaard, Margrethe; Beck, Ralf. (2012) On the emerging non-classical crystallization paradigm- examples from calcium carbonate precipitaton. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) , Tianjin 2012-09-07 - 2012-09-09
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PosterNergaard, Margrethe; Beck, Ralf; Barland, Astrid Odland; Andreassen, Jens-Petter. (2012) On the Determination of Nucleation Rates from Induction Time Measurements for Calcium Carbonate. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) , Tianjin 2012-09-07 - 2012-09-09
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PosterBeck, Ralf; Vatneberg, Stine; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Scaling of Calcium Carbonate on Stainless Steel Surfaces in Mixed Solutions of Monoethylene Glycol and Water. Hanbat Natonal University HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton , Deajeon 2012-09-03 - 2012-09-05
2011
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PosterKim, Inna; Ma, Xiaoguang; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) Solubility measurements of piperazine. The 6th Trondheim CCS Conference (TCCS-6) , Trondheim 2011-06-14 -
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Academic lectureMa, Xiaoguang; Kim, Inna; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) PRECIPITATION OF PIPERAZINE IN THE PIPERAZINE-H2O-CO2 SYSTEM. 18th International Symposium on Industrial Crystallization (ISIC 18) , Zurich 2011-09-13 - 2011-09-16
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Academic lectureSalmimies, Riina; Häkkinen, Antti; Ekberg, Bjarne; Kallas, Juha; Andreassen, Jens-Petter; Beck, Ralf. (2011) Removal of calcium scales from the surface of a ceramic filter medium. Filtech Exhibitions Germany, Filtech 2011 , Wiesbaden 2011-03-22 - 2011-03-24
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Academic lectureSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2011) Characterisation of long-term scaling effects of ceramic filter media used in the dewatering of iron ore. The Australasian Institute of Mining and Metallurgy Iron Ore 2011 , Perth 2011-07-11 - 2011-07-13
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PosterNergaard, Margrethe; Beck, Ralf; Andreassen, Jens-Petter. (2011) Scaling of Calcium Carbonate on Heated Surfaces at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18) , Zurich 2011-09-13 - 2011-09-16
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Academic lectureBeck, Ralf; Andreassen, Jens-Petter. (2011) The Influence of Crystallization Conditions on the Growth of Calcium Carbonate. International Conference on Materials for Advanced Technologies (ICMAT 2011) , Singapore 2011-06-26 - 2011-07-01
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PosterBeck, Ralf; Mohamed, Rizqah; Emslie Lewis, Alison; Andreassen, Jens-Petter. (2011) Growth and Morphology of the Vaterite Polymorph of Calcium Carbonate at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18) , Zurich 2011-09-13 - 2011-09-16
2010
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Academic lectureBeck, Ralf; Andreassen, Jens-Petter. (2010) Pressure Filtration of three Industrially Important Substances and its Dependency on Crystallization Conditions, Size and Morphology. Lappeenranta University of Technology The 13th Nordic Filtration Symposium , Lappeenranta 2010-06-10 - 2010-06-11
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Academic lectureSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2010) Characterization of filter media used in the dewatering of iron ore. Lappeenranta University of Technology 13th Nordic Filtration Symposium , Lappeenranta 2010-06-10 - 2010-06-11
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Academic lectureSaiersten, Marion; Brendsdal, Egil; Deshmukh, Salim Abdul R K.; Dugstad, Arne; Endrestøl, Guttorm; Ek, Arild. (2010) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. NACE Corrosion 2010 , San Antonio, Texas 2010-03-14 - 2010-03-18
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Academic lectureXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2010) Nanoscale control of mineral deposition within alginate gel networks. Biophysics meeting, Kongsvold 2010 2010-03-03 - 2010-03-05
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Academic lectureOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter. (2010) Control of calcium carbonate crystal polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. Biophysics meeting, Kongsvold 2010 2010-03-03 - 2010-03-05
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Academic lectureOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Sikorski, Pawel ; Andreassen, Jens-Petter. (2010) Control of calcium carbonate polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. International Workshop on Industrial Crystallization (BIWIC) 2010-09-08 - 2010-09-10
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PosterOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter; Sikorski, Pawel . (2010) Powerful Polymorph Selection in the Calcium Carbonate System by Well Defined Alginate Oligomers. Gordon Research Conference: Biomineralization 2010-08-15 - 2010-08-20
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Standal, Therese; Zhang, Zhibing; Andreassen, Jens-Petter. (2010) Bio-inspired mineralization of alginate hydrogels with hydroxyapatite for new composite materials in tissue engineering. Gordon Research Conference: Biomineralization 2010-08-15 - 2010-08-20
2009
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Academic lectureWatterud, Geir; Seiersten, M.; Andreassen, Jens-Petter. (2009) Iron Carbonate in MEG/Water mixtures. Solubility, thermodynamic and kinetic measurements. The 20th international Oil Field Chemistry Symposium , Geilo 2009-03-22 - 2009-03-25
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Academic lectureAndreassen, Jens-Petter; Brendsdal, E.; Deshmukh, Salim Abdul R K.; Endrestøl, G.; Ek, A.; Dugstad, A.. (2009) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. 20th International Oilfield Chemistry Symposium , Geilo 2009-03-22 - 2009-03-25
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Academic lectureFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Bergsted, Elin; Andreassen, Jens-Petter. (2009) The crystal growth rate of calcium carbonate at conditions of hydrate inhibition in gas processing systems. The 20th international Oil Field Chemistry Symposium , Geilo 2009-03-22 - 2009-03-25
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Academic lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2009) Crystallization and Filtration of CaCO3. Lappeenranta University of Technology BIWIC 2009 16th International Workshop on Industrial Crystallization , Lappeenranta 2009-09-09 - 2009-09-11
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Academic lectureOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel . (2009) Alginate/CaCO3 Biomaterials. Bone-Tec 2009 , Hannover 2009-10-08 - 2009-10-11
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2009) Alginate/CaCO3 Composite Biomaterials. NTNU Nanolab NTNU Nanolab Usermeeting 2009 , NTNU 2009-05-12 - 2009-05-14
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PosterFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Andreassen, Jens-Petter. (2009) Growth rates of calcium carbonate in mono ethylene glycol and water. Lappeenranta University of Technology BIWIC 2009 16th International Workshop on Industrial Crystallization , Lappeenranta 2009-09-09 - 2009-09-11
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2009) Alginate/CaCO3 Composite Biomaterials. The Norwegian Research Council NANOMAT conference 2009 , Lillehammer 2009-06-16 - 2009-06-17
2008
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Academic lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Häkkinen, Antti; Louhi-Kultanen, Majata. (2008) The Influence of Morphology and Size on Constant Pressure Filtration for two Crystallizing Systems. 10th World Filtration Congress, , Leipzig 2008-04-14 - 2008-04-18
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Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Induction time studies of calcium carbonate in ethylene glycol and water. ISIC 2008 , Maastricht 2008-09-14 - 2008-09-17
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Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Investigations of spherulitic growth in industrial crystallization. ISIC2008 , Maastricht 2008-09-14 - 2008-09-17
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Academic lectureFlaten, Ellen Marie; Fostenæs, Siv Monica; Andreassen, Jens-Petter. (2008) The effect of HEDP on calcium carbonate precipitation. BIWIC2008 , Magdeburg 2008-09-10 - 2008-09-12
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Academic lectureFlaten, Ellen Marie; Seiersten, Marion; Andreassen, Jens-Petter. (2008) Nucleation and crystal growth determination for CaCo3. Crystallization seminar. Crypow , Oslo 2008-11-27 -
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Academic lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2008) The influence of Process Parameters and Resulting Crystal Properties on Constant pressure Filtration of L-Glutamic Acid and an Aromatic Amine. ISIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION), , Maastrich 2008-09-14 - 2008-09-17
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Academic lectureAndreassen, Jens-Petter; Flaten, Ellen Marie; Beck, Ralf. (2008) Investigations of spherulitic growth in industrial crystallization. SIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION , Maastricht 2008-09-14 - 2008-09-17
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Academic lectureBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Nysæther, Trude; Enstad, G. G.. (2008) Influence of Crystal Properties on Powder Flow Behaviour. International Symposium Reliable Flow of Particulate Solids IV (RELPOWFLO IV), , Tromsø 2008-06-10 -
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Academic lectureVolden, Sondre; Opedal, Nils; Andreassen, Jens-Petter; Nyström, Bo; Glomm, Wilhelm. (2008) Polymer assisted nanoparticle synthesis. Polymer Meeting , Vinstra 2008-03-10 - 2008-03-12
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Academic lectureOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2008) Biomineralization: Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Nanotech Northern Europe 2008 , Copenhagen 2008-09-23 - 2008-09-25
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Academic lectureFlaten, Ellen Marie; Watterud, Geir; Andreassen, Jens-Petter; Seiersten, Marion. (2008) Precipitation of iron and calcium carbonate in pipelines at varying MEG contents. 2008 SPE Ninth International Conference on Oilfield Scale , Aberdeen 2008-05-28 - 2008-05-29
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PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2008) Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Biofysikkmøtet Kongsvold 2008 , Kongsvold 2008-02-27 - 2008-02-29
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PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel . (2008) Alginate Gel Beads as Model System for Biomineralization. NTNU Nanolab Nanotechnology@NTNU 2008 , Trondheim 2008-09-11 - 2008-09-12
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PosterVolden, Sondre; Beck, Ralf; Opedal, Nils; Zhu, Kaizheng; Nyström, Bo; Andreassen, Jens-Petter. (2008) Low Temperature Synthesis of Gold Nanoparticles using Ascorbic Acid and Cellulose Derivates. NTNU, Nanolab 1st Nanotechnology@NTNU , NTNU, Trondheim 2008-09-11 - 2008-09-12
2007
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Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Effect of Mono Ethylene Glycol on the Precipitation of Calcium Carbonate. 18th International Oil Field Chemistry Symposium , Geilo 2007-03-25 - 2007-03-28
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Academic lectureBeck, Ralf; Nysæter, T.; Andreassen, Jens-Petter. (2007) The Influence of Process Parameters and Resulting Crystal Properties on Filtration and Powder Handling of 2 crystallizing systems. POSTEC Annual General Meeting 2007 , Sandefjord 2007-11-12 -
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Academic lectureAndreassen, Jens-Petter. (2007) Crystallization in mono ethylene glycol (MEG) systems for gas processing. Seminar i Industriell Krystallisasjon , Oslo 2007-11-29 -
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Academic lectureFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Polymorphism and nucleation kinetics in precipitation of calcium carbonate in water and ethylene glycol. 4th International Workshop on Industrial Crystallization (BIWIC) , Cape Town 2007-09-09 - 2007-09-11
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PosterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Flaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Some Aspects of MEG Regeneration Loop in Unprocessed Gas Condensate Pipelines. SPE Workshop: Managing Oilfield Scale in the 21th century , Lisbon 2007-06-18 - 2007-06-21
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PosterBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2007) The onset of polycrystalline Growth in precipitation of L-glutamic acid compared to an aromatic amine derivative. 14th International Workshop on Industrial Crystallization (BIWIC) , Cape Town 2007-09-09 - 2007-09-11
2006
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Academic lectureAndreassen, Jens-Petter. (2006) The influence of crystallization processes on particle characteristics and solid-liquid separation. POSTEC Annual General Meeting , Sandefjord 2006-10-02 -
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Academic lectureOchoa-Fernandez, Esther; Haugen, Geir; Zhao, Tiejun; Rusten, Hans Kristian; Andreassen, Jens-Petter; Rønning, Magnus. (2006) Design, preparation and applications of CO2 acceptors in power generation with CO2 management. NTNU 12th International Conference on Greenhouse Gas Control Technologies, GHGT-8 , Trondheim 2006-06-19 - 2006-06-22
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PosterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Andreassen, Jens-Petter. (2006) Optimisation of glycol (MEG) loop and operation for long tie.ins carrying unprocessed gas condensate. 111th International Summer Course by BASF Aktiengesellschaft , Ludwigshafen 2006-07-31 - 2006-08-12
2005
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PosterNygjelten, Eva; Andreassen, Jens-Petter. (2005) Particle Size-Enlargement in Alkali Jarosite Precipitation. 16th International Symposium on Industrial Crystallization , Dresden 2005-09-11 - 2005-09-14
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PosterAndreassen, Jens-Petter; Malthe-Sørenssen, Didrik. (2005) The Importance of Sperulitic Growth Identification in Industrial Crystallisation. 16th International Symposium on Industrial Crystallization , Dresden 2005-09-11 - 2005-09-14
2002
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Academic lectureAndreassen, Jens-Petter; Thorsen, Gunnar. (2002) On the Precipitation of Calcium Carbonate at High Supersaturation. 15th International Symposium on Industrial Crystallization , Sorrento, Italy 2002-09-18 -