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John Georg Seland

Associate Professor
  • E-mailJohn.Seland@uib.no
  • Phone+47 55 58 82 20
  • Visitor Address
    Realfagbygget, Allégt. 41
    Room 
    3051-D
  • Postal Address
    Postboks 7803
    5020 BERGEN

My research is focused on characterization of molecular dynamics and organization of molecules in different types of materials using Nuclear Magnetic resonance (NMR) spectroscopy. The NMR-techniques applied are based on how dynamical processes like relaxation and diffusion influence the measured NMR signal, and what this can tell us about the interactions between the molecules. I work in particular with characterization of liquid-filled porous systems and various types of soft materials. 

 

I teach the courses: 

KJEM251 NMR spectroscopy I

KJEM202 Environmental Chemistry (together with Olav Kvalheim)

Tematic areas for master thesis projects:

Studies of molecules in complex mixtures using diffusion weighted NMR spectroscopy: Molecules in a mixture can have different diffusion rate due to differences in size between the molecules. This difference in diffusion rate can be used to separate the NMR spectra from the different components in a mixture, leading to a simpler and more robust interpretation of the obtained results. The technique can also be used for studying interactions between molecules in a mixture. We apply the technique to liquid foods and petroleum products, but the technique can also be applied to other types of complex mixtures. The research is done in collaboration with Nils Åge Frøystein. 

Characterization of liquid saturated rock cores using NMR: We focus on optimizing and develop new techniques for characterization of parameters like surface wettability and pore connectivity, which can be applied within petroleum chemistry research. These are properties that can be determined using specially designed NMR techniques that are based on the changes in relaxation- and diffusion properties of the molecules when they are in contact with a surface. The projects are partly done in collaboration with Centre for Integrated petroleum Research (CIPR) at UiB.

Studies of liquid transport in heterogeneous systems using NMR: A broad range of systems, from composite materials to biological tissue, contains barriers (membranes) that restricts liquid transport (molecular diffusion and flow). In this project we will focus on characterizing water transport in biological heterogeneous systems using NMR, but the underlying mechanisms for liquid dynamics can also be applied to study transport processes in micro emulsions, heterogeneous catalyst materials, and other types of porous systems. 

Academic article
  • Show author(s) 2020. Effect of Mineral Composition on Transverse Relaxation Time Distributions and MR Imaging of Tight Rocks from Offshore Ireland. Minerals. 232.
  • Show author(s) 2019. Surfactant Prefloods During Carbon Dioxide Foam Injection for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates. SPE Journal. 1139-1153.
  • Show author(s) 2019. Investigating pore geometry in heterogeneous porous samples using spatially resolved G0-Xapp and G0-v correlations. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 40-48.
  • Show author(s) 2019. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. Magnetic Resonance Imaging. 86-89.
  • Show author(s) 2019. Characterising oil and water in porous media using correlations between internal magnetic gradient and transverse relaxation time. Journal of magnetic resonance (San Diego, Calif. 1997 : Print).
  • Show author(s) 2019. A fluid specific dimension of confinement as a measure of wettability in porous media. Journal of magnetic resonance (San Diego, Calif. 1997 : Print).
  • Show author(s) 2018. Investigating structure-dependent diffusion in hydrogels using spatially resolved NMR spectroscopy. Journal of Colloid and Interface Science. 671-677.
  • Show author(s) 2018. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. Magnetic Resonance Imaging.
  • Show author(s) 2018. Determining the scaling of gel mesh size with changing crosslinker concentration using dynamic swelling, rheometry, and PGSE NMR spectroscopy. Journal of Applied Polymer Science. 1-10.
  • Show author(s) 2018. Characterization of pore geometry using correlations between magnetic field and internal gradient. Microporous and Mesoporous Materials. 31-34.
  • Show author(s) 2017. Crude Oil Adsorbates on Calcite and Quartz Surfaces Investigated by NMR Spectroscopy. Journal of Physical Chemistry C. 20892-20899.
  • Show author(s) 2017. Analysis of wild and farmed salmon using 13C solid-state NMR and MRI directly on fillet tissue. Analytical Methods. 1290-1296.
  • Show author(s) 2016. Re-entrant transition of aluminum-crosslinked partially hydrolyzed polyacrylamide in a high salinity solvent by rheology and NMR. Journal of Applied Polymer Science.
  • Show author(s) 2016. A multi-dimensional experiment for characterization of pore structure heterogeneity using NMR. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 19-32.
  • Show author(s) 2015. Characterising oil and water in porous media using decay due to diffusion in the internal field. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 1-9.
  • Show author(s) 2014. Nanoparticles for enhanced oil recovery: influence of pH on aluminum-cross-linked partially hydrolyzed polyacrylamide-investigation by rheology and NMR. Energy & Fuels. 2343-2351.
  • Show author(s) 2014. Nanoparticles for enhanced oil recovery: Phase transition of aluminum-cross-linked partially hydrolyzed polyacrylamide under low-salinity conditions by rheology and nuclear magnetic resonance. Energy & Fuels. 2948-2958.
  • Show author(s) 2013. Screening of the relaxivity of gadolinium-loaded periodic mesoporous silica functionalized by means of soft metalorganic silylamide grafting. European Journal of Inorganic Chemistry (EurJIC). 5969-5979.
  • Show author(s) 2013. Relaxometric properties of gadolinium-grafted mesoporous SBA-15 silica materials with varying pore size. Microporous and Mesoporous Materials. 125-133.
  • Show author(s) 2013. Investigating pore to pore exchange in systems saturated with water and oil. Diffusion Fundamentals. 1-5.
  • Show author(s) 2011. A comparison of retrospectively self-gated magnetic resonance imaging and high-frequency echocardiography for characterization of left ventricular function in mice. Laboratory Animals. Journal of the Laboratory Animal Science Association. 31-37.
  • Show author(s) 2007. Dynamic water changes in excised rat myocardium assessed by continuous distribution of T-1 and T-2. Magnetic Resonance in Medicine. 442-447.
  • Show author(s) 2007. Analyzing equilibrium water exchange between myocardial tissue compartments using dynamical two-dimensional correlation experiments combined with manganese-enhanced relaxography. Magnetic Resonance in Medicine. 674-686.
  • Show author(s) 2005. Determination of water compartments in rat myocardium using combined D-T-1 and T-1-T-2 experiments. Magnetic Resonance Imaging.
  • Show author(s) 2004. NMR propagator measurements on flow through a random pack of porous glass beads and how they are effected by dispersion, relaxation and internal field inhomogeneities. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics.
  • Show author(s) 2004. Exploring the separate NMR responses from crude oil and water in rock cores. Applied Magnetic Resonance. 417-425.
  • Show author(s) 2004. Correlations between diffusion, internal magnetic field gradients and transverse relaxation in porous systems containing oil and water. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics.
  • Show author(s) 2003. Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements. Applied Magnetic Resonance. 1-5.
  • Show author(s) 2000. Improved Convection Compensating Pulsed Field Gradient Spin-Echo and Stimulated-Echo Methods. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 323-325.
  • Show author(s) 2000. Diffusion measurements at long observation times in the presence of spatially variable internal magnetic field gradients. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 14-19.
Academic lecture
  • Show author(s) 2019. Investigating liquid displacement in porous media using spatially resolved NMR spectroscopy.
  • Show author(s) 2018. Surfactant Pre-floods during CO2 Foam for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates, SPE .
  • Show author(s) 2018. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR.
  • Show author(s) 2017. An NMR-investigation of Crude Oil Adsorbates on Calcite and Quartz Surfaces.
  • Show author(s) 2016. Multi-dimensional NMR experiments for characterization of pore structure heterogeneity and liquid saturations.
  • Show author(s) 2014. CORRELATIONS BETWEEN INHOMOGENEOUS MAGNETIC FIELDS, INTERNAL GRADIENTS, AND TRANSVERSE RELAXATION, AS A PROBE FOR PORE GEOMETRY AND HETEROGENEITY.
  • Show author(s) 2008. Determining cellular microstructure of isolated rat hearts using correlated time-dependent diffusion and T2 relaxation measurements.
  • Show author(s) 2008. Determining cellular microstructure of isolated rat hearts using correlated time dependent diffusion and T2 relaxation measurements.
  • Show author(s) 2008. A relaxographic analysis of multi-compartmental water exchange in isolated perfused rat hearts.
  • Show author(s) 2007. In vivo MRI of Small Animals: T1-mapping of Rat Myocardium.
  • Show author(s) 2006. Studying water exchange in biological tissue using two dimensional relaxation and diffusion measurements.
  • Show author(s) 2006. Changes in T1 and T2 Components in Global Ischemic Rat Heart Tissue.
  • Show author(s) 2005. Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI.
  • Show author(s) 2004. NMR-propagator measurements in porous media in the presence of surface relaxation and internal fields.
  • Show author(s) 2004. Determination of water compartments in rat myocardium using combined D-T1 and T1-T2 experiments.
  • Show author(s) 2004. Correlations between internal gradients and transverse relaxation in porous systems containing oil and water.
  • Show author(s) 2004. Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water .
  • Show author(s) 2004. Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements.
  • Show author(s) 2004. An Analysis of Water Compartments in Excised Rat Myocardium.
  • Show author(s) 2003. Exploring the Separate NMR Responses from Crude Oil and Water Simultaneously Present in Rock Cores.
  • Show author(s) 2003. Diffusion and T2-Distributions of water simultaneously present in porous rock.
  • Show author(s) 2003. Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water.
  • Show author(s) 2002. Utplassering av en virtuell kjernemagnetisk resonans fasilitet, VNMRF.
  • Show author(s) 2002. Kombinerte Diffusjon- og relaksasjonsmålinger for karakterisering av heterogene systemer.
  • Show author(s) 2000. Diffusjonsmålinger ved lange observasjonstider i systemer med interne gradienter.
Doctoral dissertation
  • Show author(s) 2019. Characterizing mass transport in hydrogels using Nuclear Magnetic Resonance.
  • Show author(s) 2015. Characterizing liquid dynamics and surface interactions in porous materials using Nuclear Magnetic Resonance.
  • Show author(s) 2008. Manganese and Water in Cardiac Magnetic Resonance Imaging.
Programme participation
  • Show author(s) 2006. Nye hjertebilder.
Poster
  • Show author(s) 2016. Fatty acids in wild and farmed salmon by use of MRI and Solid-state NMR.
  • Show author(s) 2014. Dynamic correlations between inhomogeneous magnetic fields, internal gradients, and transverse relaxation, as a probe for pore geometry and heterogeneity .
  • Show author(s) 2013. Investigating effects from restricted diffusion in multi-component diffusion data.
  • Show author(s) 2010. NMRD profiles of silica based contrast agents at high magnetic fields.
  • Show author(s) 2010. High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution.
  • Show author(s) 2010. High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution.
  • Show author(s) 2010. Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores.
  • Show author(s) 2010. Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores.
  • Show author(s) 2009. Field dependence of longitudinal relaxation contrast in cardiac manganese enhanced MRI.
  • Show author(s) 2007. Determination of time-dependent diffusion, T2 and water compartmentation in rat myocardium.
  • Show author(s) 2006. Separation of the Intra- and Extracellular Apparent Diffusion Coefficients (ADC) of Water in Rat Skeletal Muscle using Spectroscopic MEMRI.
  • Show author(s) 2006. Manganese-Enhanced Magnetic Resonance In Vivo Imaging of Rat Myocardium Using FLASH: Comparative Study of Contrast at 2.35T and 7T.
  • Show author(s) 2006. Characterizing Intra- and Extracellular Spaces of Skeletal Muscle In Vivo using MEMRI.
  • Show author(s) 2006. A Time-Based Study of Changes in T1 and T2 Components in Excised Rat Myocardium.
  • Show author(s) 2005. Myocardial T1 can differentiate between intracellular (ic)and extracellular (ec) water in perfused rat myocardium.
  • Show author(s) 2005. Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI.
  • Show author(s) 2005. An Analysis of Water Compartments in Excised and Perfused Rat Myocardium.
  • Show author(s) 2005. A Two-component Relaxographic Analysis of the Effects of Manganese Infusion and Stress in Rat Myocardium.
  • Show author(s) 2004. Diffusion and Relaxation in Excised Rat Myocardium Containing an Extracellular Contrast Agent.
  • Show author(s) 2004. Detrmination of manganese T1 relaxation in rat myocardium.
  • Show author(s) 2004. Correlations between transverse relaxation and internal gradients in porous systems containing oil and water.
  • Show author(s) 2004. Correlations between Longitudinal Relaxation and Diffusion in Excised Rat Myocardium.
  • Show author(s) 2002. UVB radiation effects on the metabolites, diffusion of water and the T1 and T2 relaxation times in rat lens.
  • Show author(s) 2002. Development of a virtual NMR facility.
  • Show author(s) 2000. The effect of internal magnetic field gradients on diffusion measurements in heterogeneous systems.
  • Show author(s) 2000. Diffusion measurements in porous polymer particles.
Academic literature review
  • Show author(s) 2020. MnDPDP: Contrast agent for imaging and protection of viable tissue. Contrast Media & Molecular Imaging. 1-17.

More information in national current research information system (CRIStin)

  • "Investigating pore to pore exchange in systems saturated with water and oil", R. T. Lewis, S. Nåden, J. G. Seland. Diffusion Fundamentals, 18 1, (2013)
  • "Relaxometric properties of gadolinium-grafted mesoporous SBA-15 silica materials with varying pore size", H. Skår, Y. Liang, E. S. Erichsen, R. Anwander, J. G. Seland. Microporous and Mesoporous Materials, 175 125. (2013)

 

  • "Screening of the relaxivity of gadolinium-loaded periodic mesoporous silica functionalized by means of soft metalorganic silylamide grafting", H. Skår, J. G. Seland, Y. Liang, N. Å. Frøystein, K. W. Törnroos, R. Anwander. European Journal of Inorganic Chemistry, 35 5969. (2013).

 

  • "A comparison of retrospectively self-gated magnetic resonance imaging and high-frequency echocardiography for characterization of left ventricular function in mice" B. H. Amundsen, M. Ericsson, J. G. Seland, T. Pavlin, Ø. Ellingsen, C. Brekken, Lab Anim. 45, 31, (2011).

  • "Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores", T. Pavlin and J. G. Seland, Diffusion Fundamentals, 14  8, (2010).
  • "High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution" J. G. Seland, Diffusion Fundamentals, 14  7, (2010).

  • "Dynamic Water Changes in Excised Rat Myocardium assessed by Continuous Distribution of T1 and T2” M. Bruvold, J. G. Seland, H. Brurok, P. Jynge, Magn. Reson. Med. 58 (3), 442 (2007).

  • “Analyzing equilibrium water exchange between myocardial tissue compartments using dynamical two-dimensional correlation experiments combined with manganese-enhanced relaxography” J. G. Seland, M. Bruvold, H. W. Anthonsen, H. Brurok, J. Krane, and P. Jynge, Magn. Reson. Med, 58 (4), 674 (2007).

  • “NMR-propagator measurements in porous media in the presence of surface relaxation and internal fields” U.M. Scheven, J.G. Seland and D.G. Cory, Magn. Reson. Imag, 23, 363, (2005).

  • “Determination of water compartments in rat myocardium using combined D-T1 and T1-T2 experiments” J. G. Seland, M. Bruvold, H. W. Anthonsen, H. Brurok, W. Nordhøy, P. Jynge, and J. Krane, Magn. Reson. Imag, 23, 354, (2005). 

  • “Correlations between diffusion, internal magnetic field gradients, and transverse relaxation in porous systems containing oil and water” J. G. Seland, K. E. Washburn, H. W. Anthonsen, and J. Krane, Phys. Rev. E. 70, 051305 (2004). 

  • “Exploring the separate NMR responses from crude oil and water simultaneously present in a rock core” G. H. Sørland,  H. W. Anthonsen, J. G. Seland,  F. Antonsen, H. C. Widerøe , and J. Krane, Appl. Magn. Reson. 26, (2004).

  • “NMR propagator measurements on flow through a random pack of porous glass beads and how they are affected by dispersion, relaxation and internal field inhomogeneities” U. M. Scheven, J. G. Seland, and D. Cory, Phys. Rev. E, 69, 021201, (2004).

  • “Background gradient suppression in pulsed gradient stimulated echo diffusion measurements” P. Z. Sun, J. G. Seland, and D. Cory, J. Magn. Reson., 161, 168, (2003).

  • “Combining PFG and CPMG NMR measurements for separate characterization of oil and water simultaneously present in heterogeneous systems” J. G. Seland, G. H. Sørland, H. W. Anthonsen, and J. Krane, Appl. Magn. Reson. 24, 41 (2003).

  • “A PFG-NMR study of restricted diffusion in heterogeneous polymer particles” J. G. Seland, M. Ottaviani, and B. Hafskjold, J. Coll. Int. Sci. 239, 168 (2001).

  • “Diffusion measurements at long observation times in the presence of spatially variable internal magnetic field gradients” J. G. Seland, G. H. Sørland, K. Zick, and B. Hafskjold, J. Magn. Reson. 146, 14 (2000).

  • “Improved convection compensated pulsed field gradient spin-echo and stimulated-echo methods” G. H. Sørland, J. G. Seland, H. W. Anthonsen, and J. Krane, J. Magn. Reson. 142, 323 (2000). 

  • “Measurement of diffusion in porous polythylene powder using PFGSTE NMR” J. G. Seland and B. Hafskjold, Magn. Reson. Imag. 16, 687 (1998).

  • “FTIR studies of the NO3 initiated degradation of but-2-yne: Mechanism and rate constant determination” J. G. Seland, I. M. W. Noremasaune, and C. J. Nielsen, J. Chem Soc. Far. Trans, 92, 3459 (1996).

 

  • Nuclear Magnetic Resonance (NMR/MRI)
  • Diffusion
  • Porous systems

Professional experience

Aug. 2008 - : Associate professor, Department of Chemistry, University of Bergen, Bergen, Norway.

Nov. 2003-Aug. 2008: Research Scientist, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway 

April 2005-Jul. 2005: Visiting Scientist, Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, USA

Jan. 2003-April. 2003: Research Scientist, Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway

April 2003-Jul. 2003: Visiting Scientist, Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, USA

Jan. 2002-Dec.2002: Visiting Scientist, Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, USA

Jan. 2001-Dec. 2001: Post Doctoral Fellow, Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway

Education

Ph. D. in Physical Chemistry, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, 2000

M. Sc. in Physical Chemistry, University of Oslo (UiO), Oslo, Norway, 1994

 

Research groups