Johan Gråsjö

Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering

Son, Sang-Kil; Baumann, Thomas M.; Pedersen, Jacob; Budewig, Laura et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

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The micro-structure of lactose powder compacts studied by small-angle and ultra small-angle X-ray scattering

Gråsjö, Johan; Persson, Ann-Sofie; Alderborn, Göran; Frenning, Göran et al.

Part of Powder Technology, 2025

• DOI for The micro-structure of lactose powder compacts studied by small-angle and ultra small-angle X-ray scattering
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Observation of an Associative State in Aqueous Hydroxide

Yin, Zhong; Krasnov, Pavel; Thürmer, Stephan; Chatzigeorgiou, Evanthia et al.

Part of Journal of the American Chemical Society, p. 9190-9197, 2025

• DOI for Observation of an Associative State in Aqueous Hydroxide
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FRAP analysis of peptide diffusion in extracellular matrix mimetic hydrogels as an in vitro model for subcutaneous injection

Parlow, Julia; Rodler, Agnes; Gråsjö, Johan; Sjögren, Helen et al.

Part of International Journal of Pharmaceutics, 2024

• DOI for FRAP analysis of peptide diffusion in extracellular matrix mimetic hydrogels as an in vitro model for subcutaneous injection

Quantitative imaging of doxorubicin diffusion and cellular uptake in biomimetic gels with human liver tumor cells

Degerstedt, Oliver; O'Callaghan, Paul; Clavero, Ada Lerma; Gråsjö, Johan et al.

Part of Drug Delivery and Translational Research, p. 970-983, 2023

• DOI for Quantitative imaging of doxorubicin diffusion and cellular uptake in biomimetic gels with human liver tumor cells
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Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering

Son, Sang-Kil; Baumann, Thomas M.; Pedersen, Jacob; Budewig, Laura et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

• DOI for Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering
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The micro-structure of lactose powder compacts studied by small-angle and ultra small-angle X-ray scattering

Gråsjö, Johan; Persson, Ann-Sofie; Alderborn, Göran; Frenning, Göran et al.

Part of Powder Technology, 2025

• DOI for The micro-structure of lactose powder compacts studied by small-angle and ultra small-angle X-ray scattering
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Observation of an Associative State in Aqueous Hydroxide

Yin, Zhong; Krasnov, Pavel; Thürmer, Stephan; Chatzigeorgiou, Evanthia et al.

Part of Journal of the American Chemical Society, p. 9190-9197, 2025

• DOI for Observation of an Associative State in Aqueous Hydroxide
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FRAP analysis of peptide diffusion in extracellular matrix mimetic hydrogels as an in vitro model for subcutaneous injection

Parlow, Julia; Rodler, Agnes; Gråsjö, Johan; Sjögren, Helen et al.

Part of International Journal of Pharmaceutics, 2024

• DOI for FRAP analysis of peptide diffusion in extracellular matrix mimetic hydrogels as an in vitro model for subcutaneous injection

Quantitative imaging of doxorubicin diffusion and cellular uptake in biomimetic gels with human liver tumor cells

Degerstedt, Oliver; O'Callaghan, Paul; Clavero, Ada Lerma; Gråsjö, Johan et al.

Part of Drug Delivery and Translational Research, p. 970-983, 2023

• DOI for Quantitative imaging of doxorubicin diffusion and cellular uptake in biomimetic gels with human liver tumor cells
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Effect of fluid velocity and particle size on the hydrodynamic diffusion layer thickness

Andersson, Sara B. E.; Frenning, Göran; Alderborn, Göran; Gråsjö, Johan

Part of European journal of pharmaceutics and biopharmaceutics, p. 1-10, 2022

• DOI for Effect of fluid velocity and particle size on the hydrodynamic diffusion layer thickness
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Drug diffusion in biomimetic hydrogels: importance for drug transport and delivery in non-vascular tumor tissue

Degerstedt, Oliver; Gråsjö, Johan; Norberg, Anton; Sjögren, Erik et al.

Part of European Journal of Pharmaceutical Sciences, 2022

• DOI for Drug diffusion in biomimetic hydrogels: importance for drug transport and delivery in non-vascular tumor tissue
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In Vitro Cell Toxicity and Intracellular Uptake of Doxorubicin Exposed as a Solution or Liposomes: Implications for Treatment of Hepatocellular Carcinoma

Kullenberg, Fredrik; Degerstedt, Oliver; Calitz, Carlemi; Pavlovic, Natasa et al.

Part of Cells, 2021

• DOI for In Vitro Cell Toxicity and Intracellular Uptake of Doxorubicin Exposed as a Solution or Liposomes: Implications for Treatment of Hepatocellular Carcinoma
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Vibrational resonant inelastic X-ray scattering in liquid acetic acid: a ruler for molecular chain lengths

Savchenko, Viktoriia; Brumboiu, Iulia Emilia; Kimberg, Victor; Odelius, Michael et al.

Part of Scientific Reports, 2021

• DOI for Vibrational resonant inelastic X-ray scattering in liquid acetic acid: a ruler for molecular chain lengths
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Hydrogen bond effects in multimode nuclear dynamics of acetic acid observed via resonant x-ray scattering

Savchenko, Viktoriia; Ekholm, Victor; Brumboiu, Iulia Emilia; Norman, Patrick et al.

Part of Journal of Chemical Physics, 2021

• DOI for Hydrogen bond effects in multimode nuclear dynamics of acetic acid observed via resonant x-ray scattering
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Long-term physical (in)stability of spray-dried amorphous drugs: relationship with glass-forming ability and physicochemical properties

Edueng, Khadijah; Bergström, Christel; Gråsjö, Johan; Mahlin, Denny

Part of Pharmaceutics, 2019

• DOI for Long-term physical (in)stability of spray-dried amorphous drugs: relationship with glass-forming ability and physicochemical properties

Supersaturation Potential of Amorphous Active Pharmaceutical Ingredients after Long-Term Storage

Edueng, Khadijah; Mahlin, Denny; Gråsjö, Johan; Nylander, Olivia et al.

Part of Molecules, 2019

• DOI for Supersaturation Potential of Amorphous Active Pharmaceutical Ingredients after Long-Term Storage
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Mechanical behaviour of ideal elastic-plastic particles subjected to different triaxial loading conditions

Jonsson, Henrik; Gråsjö, Johan; Frenning, Göran

Part of Powder Technology, p. 347-355, 2017

• DOI for Mechanical behaviour of ideal elastic-plastic particles subjected to different triaxial loading conditions
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Comminution-amorphisation relationships during ball milling of lactose at different milling conditions

Pazesh, Samaneh; Gråsjö, Johan; Berggren, Jonas; Alderborn, Göran

Part of International Journal of Pharmaceutics, p. 215-227, 2017

• DOI for Comminution-amorphisation relationships during ball milling of lactose at different milling conditions
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Considerations on the quantitative analysis of apparent amorphicity of milled lactose by Raman spectroscopy

Pazesh, Samaneh; Lazorova, Lucia; Berggren, Jonas; Alderborn, Göran et al.

Part of International Journal of Pharmaceutics, p. 488-504, 2016

• DOI for Considerations on the quantitative analysis of apparent amorphicity of milled lactose by Raman spectroscopy
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Kaolinite: defect states define material properties-a soft x-ray and first principles study of the band gap

Pietzsch, Annette; Nisar, Jawad; Jamstorp, Erik; Gråsjö, Johan et al.

Part of Journal of Electron Spectroscopy and Related Phenomena, p. 11-15, 2015

• DOI for Kaolinite: defect states define material properties-a soft x-ray and first principles study of the band gap

An apparatus for confined triaxial testing of single particles

Jonsson, Henrik; Gråsjö, Johan; Nordström, Josefina; Johansson, Niklas et al.

Part of Powder Technology, p. 121-127, 2015

• DOI for An apparatus for confined triaxial testing of single particles
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Rydberg-Resolved Resonant Inelastic Soft X-Ray Scattering: Dynamics at Core Ionization Thresholds

Rubensson, Jan-Erik; Söderström, Johan; Binggeli, Christian; Gråsjö, Johan et al.

Part of Physical Review Letters, 2015

• DOI for Rydberg-Resolved Resonant Inelastic Soft X-Ray Scattering: Dynamics at Core Ionization Thresholds

Unveiling the complex electronic structure of amorphous metal oxides

Århammar, Cecilia; Pietzsch, Annette; Bock, Nicolas; Holmström, Erik et al.

Part of Proceedings of the National Academy of Sciences of the United States of America, p. 6355-6360, 2011

• DOI for Unveiling the complex electronic structure of amorphous metal oxides

The Release of Catanionic Mixtures Embedded in Gels: An Approximate Analytical Analysis

Frenning, Göran; Gråsjö, Johan; Hansson, Per

Part of AIChE Journal, p. 1402-1408, 2011

• DOI for The Release of Catanionic Mixtures Embedded in Gels: An Approximate Analytical Analysis
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Local Electronic Structure of Functional Groups in Glycine As Anion, Zwitterion, and Cation in Aqueous Solution

Gråsjö, Johan; Andersson, Egil; Forsberg, Johan; Duda, Laurent et al.

Part of Journal of Physical Chemistry B, p. 16002-16006, 2009

• DOI for Local Electronic Structure of Functional Groups in Glycine As Anion, Zwitterion, and Cation in Aqueous Solution

The multiple depletion curves method provides accurate estimates of intrinsic clearance (CLint), maximum velocity of the metabolic reaction (Vmax), and Michaelis constant (Km): accuracy and robustness evaluated through experimental data and Monte Carlo simulations

Sjögren, Erik; Lennernäs, Hans; Andersson, Tommy B; Gråsjö, Johan et al.

Part of Drug Metabolism And Disposition, p. 47-58, 2009

• DOI for The multiple depletion curves method provides accurate estimates of intrinsic clearance (CLint), maximum velocity of the metabolic reaction (Vmax), and Michaelis constant (Km): accuracy and robustness evaluated through experimental data and Monte Carlo simulations

Electronic structure of water molecules confined in a micelle lattice

Gråsjö, Johan; Andersson, Egil; Forsberg, Johan; Aziz, Emad F. et al.

Part of Journal of Physical Chemistry B, p. 8201-8205, 2009

• DOI for Electronic structure of water molecules confined in a micelle lattice

Angular anisotropy in resonant inelastic soft X-ray scattering of liquid water

Forsberg, Johan; Gråsjö, Johan; Brena, Barbara; Nordgren, Joseph et al.

Part of Physical Review B. Condensed Matter and Materials Physics, p. 132203, 2009

• DOI for Angular anisotropy in resonant inelastic soft X-ray scattering of liquid water

Implications of regular solution theory on the release mechanism of catanionic mixtures from gels

Bramer, Tobias; Frenning, Göran; Gråsjö, Johan; Edsman, Katarina et al.

Part of Colloids and Surfaces B, p. 214-225, 2009

• DOI for Implications of regular solution theory on the release mechanism of catanionic mixtures from gels

Determining the static dielectric permittivity of ion conducting materials

Gråsjö, Johan; Welch, Ken; Strömme, Maria

Part of Applied Physics Letters, 2008

• DOI for Determining the static dielectric permittivity of ion conducting materials

Photoinduced Formation of N₂ Molecules in Ammonium Compounds

Aziz, Emad F; Gråsjö, Johan; Forsberg, Johan; Andersson, Egil et al.

Part of Journal of Physical Chemistry A, p. 9662-9669, 2007

• DOI for Photoinduced Formation of N₂ Molecules in Ammonium Compounds

Conductivity percolation in loosely compacted microcrystalline cellulose: An in situ study by dielectric spectroscopy during densification

Nilsson, Martin; Frenning, Göran; Gråsjö, Johan; Alderborn, Göran et al.

Part of Journal of Physical Chemistry B, p. 20502-20506, 2006

• DOI for Conductivity percolation in loosely compacted microcrystalline cellulose: An in situ study by dielectric spectroscopy during densification

Regional levels of drug transporters along the human intestinal tract: Co-expression of ABC and SLC transporters and comparison with Caco-2 cells

Englund, Gunilla; Rorsman, Fredrik; Rönnblom, Anders; Karlbom, Urban et al.

Part of European Journal of Pharmaceutical Sciences, p. 269-277, 2006

• DOI for Regional levels of drug transporters along the human intestinal tract: Co-expression of ABC and SLC transporters and comparison with Caco-2 cells

X-ray yield and selectively excited X-ray emission spectra of atenolol and nadolol.

Söderström, Johan; Gråsjö, Johan; Kashtanov, S; Bergström, Christel et al.

Part of J Electr Spectr, p. 283-285, 2005

Caco-2 permeability of weakly basic drugs predicted with the Double-Sink PAMPA pK flux a method.

Avdeef, Alex; Artursson, Per; Neuhoff, Sibylle; Lazorova, Lucia et al.

Part of Eur J Pharm Sci, p. 333-49, 2005

Blood glucose-lowering activity of a hyaluronan-insulin complex after oral administration to rats with diabetes.

Jederström, Gustaf; Gråsjö, Johan; Nordin, Astrid; Sjöholm, Ingvar et al.

Part of Diabetes Technol Ther, p. 948-57, 2005

Formulating Insulin for Oral Administration: Preparation of Hyaluronan-Insulin Complex

Jederstrom, Gustaf; Andersson, Arne; Gråsjö, Johan; Sjöholm, Ingvar

Part of Pharmaceutical Research, p. 2040-2047, 2004

Effect of intragranular porosity on compression behaviour of and drug release from reservoir pellets

Tunón, Åsa; Gråsjö, Johan; Alderborn, Göran

Part of European Journal of Pharmaceutical Sciences, p. 333-344, 2003

• DOI for Effect of intragranular porosity on compression behaviour of and drug release from reservoir pellets

Molecular Arrangement, Electronic Structure and Transport Properties in Surfactant Gel- and Related Systems Studied by Soft X-ray and Dielectric Spectroscopy

Gråsjö, Johan

2013

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Soft X-ray Spectroscopy on  amorphous and crystalline magnesium carbonate

Chatzigeorgiou, Evanthia; Århammar, Cecilia; Gråsjö, Johan; Ekholm, Victor et al.

Part of EUROMAT 2019, 2019

Resonant Inelastic X-ray Scattering on Mesoporous Magnesium Carbonate

Chatzigeorgiou, E; Århammar, Cecilia; Gråsjö, Johan; Strömme, Maria et al.

Part of The 40th International Conference on Vacuum Ultraviolet and X-ray Physics, 2019

Oxygen K-edge studies of water poor surfactant gel systems

Gråsjö, Johan; Andersson, Egil; Forsberg, Johan; Aziz, Emad et al.

2008

mRNA expression of drug-transporting proteins along the human intestine and comparison with expression in Caco-2 cells

Englund, Gunilla; Rorsman, Fredrik; Rönnblom, Anders; Lazorova, Lucia et al.

2012

Ion mobility and gel complex structure in dodecyl trimethylammonium/polyacrylate gel complexes

Gråsjö, Johan; Strömme, Maria; Hansson, Per

Aqueous carbonate and bicarbonate ions studied by RIXS at the O K-edge

Ekholm, Victor; Gråsjö, Johan; Dong, Minjie; Björneholm, Olle et al.