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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
  • 2019. Surfactant Prefloods During Carbon Dioxide Foam Injection for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates. SPE Journal. 1139-1153.
  • 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.
  • 2019. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. Magnetic Resonance Imaging. 86-89.
  • 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).
  • 2019. A fluid specific dimension of confinement as a measure of wettability in porous media. Journal of magnetic resonance (San Diego, Calif. 1997 : Print).
  • 2018. Investigating structure-dependent diffusion in hydrogels using spatially resolved NMR spectroscopy. Journal of Colloid and Interface Science. 671-677.
  • 2018. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. Magnetic Resonance Imaging.
  • 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.
  • 2018. Characterization of pore geometry using correlations between magnetic field and internal gradient. Microporous and Mesoporous Materials. 31-34.
  • 2017. Crude Oil Adsorbates on Calcite and Quartz Surfaces Investigated by NMR Spectroscopy. Journal of Physical Chemistry C. 20892-20899.
  • 2017. Analysis of wild and farmed salmon using 13C solid-state NMR and MRI directly on fillet tissue. Analytical Methods. 1290-1296.
  • 2016. Re-entrant transition of aluminum-crosslinked partially hydrolyzed polyacrylamide in a high salinity solvent by rheology and NMR. Journal of Applied Polymer Science.
  • 2016. A multi-dimensional experiment for characterization of pore structure heterogeneity using NMR. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 19-32.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2013. Relaxometric properties of gadolinium-grafted mesoporous SBA-15 silica materials with varying pore size. Microporous and Mesoporous Materials. 125-133.
  • 2013. Investigating pore to pore exchange in systems saturated with water and oil. Diffusion Fundamentals. 1-5.
  • 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.
  • 2007. Dynamic water changes in excised rat myocardium assessed by continuous distribution of T-1 and T-2. Magnetic Resonance in Medicine. 442-447.
  • 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.
  • 2005. Determination of water compartments in rat myocardium using combined D-T-1 and T-1-T-2 experiments. Magnetic Resonance Imaging.
  • 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.
  • 2004. Exploring the separate NMR responses from crude oil and water in rock cores. Applied Magnetic Resonance. 417-425.
  • 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.
  • 2003. Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements. Applied Magnetic Resonance. 1-5.
  • 2000. Improved Convection Compensating Pulsed Field Gradient Spin-Echo and Stimulated-Echo Methods. Journal of magnetic resonance (San Diego, Calif. 1997 : Print). 323-325.
  • 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
  • 2019. Investigating liquid displacement in porous media using spatially resolved NMR spectroscopy.
  • 2018. Surfactant Pre-floods during CO2 Foam for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates, SPE .
  • 2018. Investigating mobility of crude oil adsorbates on mineral surfaces by NMR.
  • 2017. An NMR-investigation of Crude Oil Adsorbates on Calcite and Quartz Surfaces.
  • 2016. Multi-dimensional NMR experiments for characterization of pore structure heterogeneity and liquid saturations.
  • 2014. CORRELATIONS BETWEEN INHOMOGENEOUS MAGNETIC FIELDS, INTERNAL GRADIENTS, AND TRANSVERSE RELAXATION, AS A PROBE FOR PORE GEOMETRY AND HETEROGENEITY.
  • 2008. Determining cellular microstructure of isolated rat hearts using correlated time-dependent diffusion and T2 relaxation measurements.
  • 2008. Determining cellular microstructure of isolated rat hearts using correlated time dependent diffusion and T2 relaxation measurements.
  • 2008. A relaxographic analysis of multi-compartmental water exchange in isolated perfused rat hearts.
  • 2007. In vivo MRI of Small Animals: T1-mapping of Rat Myocardium.
  • 2006. Studying water exchange in biological tissue using two dimensional relaxation and diffusion measurements.
  • 2006. Changes in T1 and T2 Components in Global Ischemic Rat Heart Tissue.
  • 2005. Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI.
  • 2004. NMR-propagator measurements in porous media in the presence of surface relaxation and internal fields.
  • 2004. Determination of water compartments in rat myocardium using combined D-T1 and T1-T2 experiments.
  • 2004. Correlations between internal gradients and transverse relaxation in porous systems containing oil and water.
  • 2004. Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water .
  • 2004. Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements.
  • 2004. An Analysis of Water Compartments in Excised Rat Myocardium.
  • 2003. Exploring the Separate NMR Responses from Crude Oil and Water Simultaneously Present in Rock Cores.
  • 2003. Diffusion and T2-Distributions of water simultaneously present in porous rock.
  • 2003. Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water.
  • 2002. Utplassering av en virtuell kjernemagnetisk resonans fasilitet, VNMRF.
  • 2002. Kombinerte Diffusjon- og relaksasjonsmålinger for karakterisering av heterogene systemer.
  • 2000. Diffusjonsmålinger ved lange observasjonstider i systemer med interne gradienter.
Doctoral dissertation
  • 2019. Characterizing mass transport in hydrogels using Nuclear Magnetic Resonance.
  • 2015. Characterizing liquid dynamics and surface interactions in porous materials using Nuclear Magnetic Resonance.
  • 2008. Manganese and Water in Cardiac Magnetic Resonance Imaging.
Programme participation
  • 2006. Nye hjertebilder.
Poster
  • 2016. Fatty acids in wild and farmed salmon by use of MRI and Solid-state NMR.
  • 2014. Dynamic correlations between inhomogeneous magnetic fields, internal gradients, and transverse relaxation, as a probe for pore geometry and heterogeneity .
  • 2013. Investigating effects from restricted diffusion in multi-component diffusion data.
  • 2010. NMRD profiles of silica based contrast agents at high magnetic fields.
  • 2010. High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution.
  • 2010. High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution.
  • 2010. Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores.
  • 2010. Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores.
  • 2009. Field dependence of longitudinal relaxation contrast in cardiac manganese enhanced MRI.
  • 2007. Determination of time-dependent diffusion, T2 and water compartmentation in rat myocardium.
  • 2006. Separation of the Intra- and Extracellular Apparent Diffusion Coefficients (ADC) of Water in Rat Skeletal Muscle using Spectroscopic MEMRI.
  • 2006. Manganese-Enhanced Magnetic Resonance In Vivo Imaging of Rat Myocardium Using FLASH: Comparative Study of Contrast at 2.35T and 7T.
  • 2006. Characterizing Intra- and Extracellular Spaces of Skeletal Muscle In Vivo using MEMRI.
  • 2006. A Time-Based Study of Changes in T1 and T2 Components in Excised Rat Myocardium.
  • 2005. Myocardial T1 can differentiate between intracellular (ic)and extracellular (ec) water in perfused rat myocardium.
  • 2005. Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI.
  • 2005. An Analysis of Water Compartments in Excised and Perfused Rat Myocardium.
  • 2005. A Two-component Relaxographic Analysis of the Effects of Manganese Infusion and Stress in Rat Myocardium.
  • 2004. Diffusion and Relaxation in Excised Rat Myocardium Containing an Extracellular Contrast Agent.
  • 2004. Detrmination of manganese T1 relaxation in rat myocardium.
  • 2004. Correlations between transverse relaxation and internal gradients in porous systems containing oil and water.
  • 2004. Correlations between Longitudinal Relaxation and Diffusion in Excised Rat Myocardium.
  • 2002. UVB radiation effects on the metabolites, diffusion of water and the T1 and T2 relaxation times in rat lens.
  • 2002. Development of a virtual NMR facility.
  • 2000. The effect of internal magnetic field gradients on diffusion measurements in heterogeneous systems.
  • 2000. Diffusion measurements in porous polymer particles.

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