John Georg Seland
Position
Associate Professor
Research groups
Research
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.
Teaching
I teach the courses:
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.
Publications
Lecture
Poster
- Maximov, Ivan; Seland, John Georg (2024). An anisotropic capillary based phantom for validation of diffusion-relaxation models. (external link)
- Steinkopf, Signe Lilia; Totland, Christian; Seland, John Georg et al. (2016). Fatty acids in wild and farmed salmon by use of MRI and Solid-state NMR.. (external link)
- Seland, John Georg (2014). Dynamic correlations between inhomogeneous magnetic fields, internal gradients, and transverse relaxation, as a probe for pore geometry and heterogeneity . (external link)
- Pavlin, Tina; Seland, John Georg (2013). Investigating effects from restricted diffusion in multi-component diffusion data. (external link)
- Pavlin, Tina; Seland, John Georg (2010). Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores. (external link)
- Pavlin, Tina; Seland, John Georg (2010). Dynamic correlations between susceptibility gradients and T2-relaxation as a probe for wettability properties of liquid saturated rock cores. (external link)
- Skår, Hjørdis; Seland, John Georg; Ferrante, Gianni (2010). NMRD profiles of silica based contrast agents at high magnetic fields. (external link)
- Seland, John Georg (2010). High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution. (external link)
- Seland, John Georg (2010). High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution. (external link)
- Seland, John Georg; Bruvold, Morten; Pavlin, Tina et al. (2009). Field dependence of longitudinal relaxation contrast in cardiac manganese enhanced MRI. (external link)
- Pavlin, Tina; Jynge, Per; Seland, John Georg (2007). Determination of time-dependent diffusion, T2 and water compartmentation in rat myocardium. (external link)
- Seland, John Georg; Helmer, Karl; Bhagavatheeshwaran, Govind et al. (2006). Characterizing Intra- and Extracellular Spaces of Skeletal Muscle In Vivo using MEMRI. (external link)
- Helmer, Karl; Seland, John Georg; Henninger, Niels et al. (2006). Separation of the Intra- and Extracellular Apparent Diffusion Coefficients (ADC) of Water in Rat Skeletal Muscle using Spectroscopic MEMRI. (external link)
- Bruvold, Morten; Pavlin, Tina; Brurok, Heidi et al. (2006). Manganese-Enhanced Magnetic Resonance In Vivo Imaging of Rat Myocardium Using FLASH: Comparative Study of Contrast at 2.35T and 7T. (external link)
- Bruvold, Morten; Seland, John Georg; Skarra, Sissel et al. (2006). A Time-Based Study of Changes in T1 and T2 Components in Excised Rat Myocardium. (external link)
- Bruvold, Morten; Seland, John Georg; Skarra, Sissel et al. (2005). A Two-component Relaxographic Analysis of the Effects of Manganese Infusion and Stress in Rat Myocardium. (external link)
- Bruvold, Morten; Brurok, Heidi; Krane, Jostein et al. (2005). Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI. (external link)
- Seland, John Georg; Bruvold, Morten; Skarra, Sissel et al. (2005). An Analysis of Water Compartments in Excised and Perfused Rat Myocardium. (external link)
- Seland, John Georg; Bruvold, Morten; Krane, Jostein et al. (2005). Myocardial T1 can differentiate between intracellular (ic)and extracellular (ec) water in perfused rat myocardium. (external link)
- Seland, John Georg; Anthonsen, Henrik; Washburn, Kathryn et al. (2004). Correlations between transverse relaxation and internal gradients in porous systems containing oil and water. (external link)
- Seland, John Georg; Bruvold, Morten; Anthonsen, Henrik et al. (2004). Diffusion and Relaxation in Excised Rat Myocardium Containing an Extracellular Contrast Agent. (external link)
- Seland, John Georg; Bruvold, Morten; Brurok, Heidi et al. (2004). Correlations between Longitudinal Relaxation and Diffusion in Excised Rat Myocardium. (external link)
- Anthonsen, Henrik; Seland, John Georg; Nordhøy, Wibeke et al. (2004). Detrmination of manganese T1 relaxation in rat myocardium. (external link)
- Anthonsen, Henrik; Krane, Jostein; Seland, John Georg et al. (2002). Development of a virtual NMR facility. (external link)
- Risa, Øystein; Anthonsen, Henrik; Seland, John Georg et al. (2002). UVB radiation effects on the metabolites, diffusion of water and the T1 and T2 relaxation times in rat lens. (external link)
- Seland, John Georg; Hafskjold, Bjørn (2000). Diffusion measurements in porous polymer particles. (external link)
- Seland, John Georg; Sørland, Geir (2000). The effect of internal magnetic field gradients on diffusion measurements in heterogeneous systems. (external link)
Academic article
- Totland, Christian; Steinkopf, Signe Lilia; Storhaug, Lisa Tu et al. (2022). 31P solid-state NMR on skeletal muscle of wild and farmed Atlantic salmon. (external link)
- Bratland, Aina Marie Løkkevik; Seland, John Georg (2021). Multidimensional dynamic NMR correlations in sedimentary rock cores at different liquid saturations. (external link)
- Almenningen, Stian; Srikumar, Roy; Hussain, Arif et al. (2020). Effect of Mineral Composition on Transverse Relaxation Time Distributions and MR Imaging of Tight Rocks from Offshore Ireland.. (external link)
- Fredriksen, Sunniva; Alcorn, Zachary Paul; Frøland, Anders et al. (2019). Surfactant Prefloods During Carbon Dioxide Foam Injection for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates. (external link)
- Sørgård, Henrik Nicolay; Seland, John Georg (2019). Investigating pore geometry in heterogeneous porous samples using spatially resolved G0-Xapp and G0-v correlations. (external link)
- Sørgård, Henrik Nicolay; Totland, Christian; Nerdal, Willy et al. (2019). Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. (external link)
- Sørgård, Henrik Nicolay; Seland, John Georg (2019). A fluid specific dimension of confinement as a measure of wettability in porous media. (external link)
- Bratland, Aina Marie Løkkevik; Pavlin, Tina; Djurhuus, Ketil et al. (2019). Characterising oil and water in porous media using correlations between internal magnetic gradient and transverse relaxation time. (external link)
- Lewis, Rhiannon Tveiten; Seland, John Georg (2018). Characterization of pore geometry using correlations between magnetic field and internal gradient. (external link)
- Wisniewska, Malgorzata; Seland, John Georg (2018). Investigating structure-dependent diffusion in hydrogels using spatially resolved NMR spectroscopy. (external link)
- Wisniewska, Malgorzata; Seland, John Georg; Wang, Wei (2018). Determining the scaling of gel mesh size with changing crosslinker concentration using dynamic swelling, rheometry, and PGSE NMR spectroscopy. (external link)
- Sørgård, Henrik Nicolay; Totland, Christian; Nerdal, Willy et al. (2018). Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. (external link)
- Sørgård, Henrik Nicolay; Totland, Christian; Nerdal, Willy et al. (2017). Crude Oil Adsorbates on Calcite and Quartz Surfaces Investigated by NMR Spectroscopy. (external link)
- Totland, Christian; Seland, John Georg; Steinkopf, Signe Lilia et al. (2017). Analysis of wild and farmed salmon using 13C solid-state NMR and MRI directly on fillet tissue. (external link)
- Lewis, Rhiannon Tveiten; Seland, John Georg (2016). A multi-dimensional experiment for characterization of pore structure heterogeneity using NMR. (external link)
- Kedir, Abduljelil; Seland, John Georg; Skauge, Arne et al. (2016). Re-entrant transition of aluminum-crosslinked partially hydrolyzed polyacrylamide in a high salinity solvent by rheology and NMR. (external link)
- Lewis, Rhiannon Tveiten; Djurhuus, Ketil; Seland, John Georg (2015). Characterising oil and water in porous media using decay due to diffusion in the internal field. (external link)
- Kedir, Abduljelil; Seland, John Georg; Skauge, Arne et al. (2014). Nanoparticles for enhanced oil recovery: influence of pH on aluminum-cross-linked partially hydrolyzed polyacrylamide-investigation by rheology and NMR. (external link)
- Kedir, Abduljelil; Seland, John Georg; Skauge, Arne et al. (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. (external link)
- Lewis, Rhiannon Tveiten; Nåden, Susanne; Seland, John Georg (2013). Investigating pore to pore exchange in systems saturated with water and oil. (external link)
- Skår, Hjørdis; Liang, Yucang; Erichsen, Egil Severin et al. (2013). Relaxometric properties of gadolinium-grafted mesoporous SBA-15 silica materials with varying pore size. (external link)
- Skår, Hjørdis; Seland, John Georg; Liang, Yucang et al. (2013). Screening of the relaxivity of gadolinium-loaded periodic mesoporous silica functionalized by means of soft metalorganic silylamide grafting. (external link)
- Amundsen, Brage H.; Ericsson, Madelene; Seland, John Georg et al. (2011). A comparison of retrospectively self-gated magnetic resonance imaging and high-frequency echocardiography for characterization of left ventricular function in mice. (external link)
- Bruvold, Morten; Seland, John Georg; Brurok, Heidi et al. (2007). Dynamic water changes in excised rat myocardium assessed by continuous distribution of T-1 and T-2. (external link)
- Seland, John Georg; Bruvold, Morten; Brurok, Heidi et al. (2007). Analyzing equilibrium water exchange between myocardial tissue compartments using dynamical two-dimensional correlation experiments combined with manganese-enhanced relaxography. (external link)
- Seland, John Georg; Bruvold, Morten; Anthonsen, Henrik et al. (2005). Determination of water compartments in rat myocardium using combined D-T-1 and T-1-T-2 experiments. (external link)
- Seland, John Georg; Washburn, Kathryn; Anthonsen, Henrik et al. (2004). Correlations between diffusion, internal magnetic field gradients and transverse relaxation in porous systems containing oil and water. (external link)
- Scheven, Ulrik; Seland, John Georg; Cory, David (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. (external link)
- Sorland, GH; Anthonsen, HW; Seland, John Georg et al. (2004). Exploring the separate NMR responses from crude oil and water in rock cores. (external link)
- Seland, John Georg; Sørland, Geir H; Anthonsen, Henrik et al. (2003). Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements. (external link)
- Sørland, G.H.; Seland, John Georg; Krane, Jostein et al. (2000). Improved Convection Compensating Pulsed Field Gradient Spin-Echo and Stimulated-Echo Methods. (external link)
- Seland, John Georg; Sørland, Geir; Zick, Klaus et al. (2000). Diffusion measurements at long observation times in the presence of spatially variable internal magnetic field gradients. (external link)
Academic literature review
Academic lecture
- Sørgård, Henrik Nicolay; Seland, John Georg (2019). Investigating liquid displacement in porous media using spatially resolved NMR spectroscopy. (external link)
- Sørgård, Henrik Nicolay; Totland, Christian; Nerdal, Willy et al. (2018). Investigating mobility of crude oil adsorbates on mineral surfaces by NMR. (external link)
- Fredriksen, Sunniva; Alcorn, Zachary Paul; Frøland, Anders et al. (2018). Surfactant Pre-floods during CO2 Foam for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates, SPE . (external link)
- Seland, John Georg; Sørgård, Henrik Nicolay; Totland, Christian et al. (2017). An NMR-investigation of Crude Oil Adsorbates on Calcite and Quartz Surfaces. (external link)
- Lewis, Rhiannon Tveiten; Seland, John Georg (2016). Multi-dimensional NMR experiments for characterization of pore structure heterogeneity and liquid saturations. (external link)
- Seland, John Georg (2014). CORRELATIONS BETWEEN INHOMOGENEOUS MAGNETIC FIELDS, INTERNAL GRADIENTS, AND TRANSVERSE RELAXATION, AS A PROBE FOR PORE GEOMETRY AND HETEROGENEITY.. (external link)
- Pavlin, Tina; Bruvold, Morten; Jynge, Per et al. (2008). Determining cellular microstructure of isolated rat hearts using correlated time-dependent diffusion and T2 relaxation measurements. (external link)
- Seland, John Georg; Bruvold, Morten; Skarra, Sissel et al. (2008). A relaxographic analysis of multi-compartmental water exchange in isolated perfused rat hearts. (external link)
- Pavlin, Tina; Bruvold, Morten; Jynge, Per et al. (2008). Determining cellular microstructure of isolated rat hearts using correlated time dependent diffusion and T2 relaxation measurements. (external link)
- Bruvold, Morten; Pavlin, Tina; Helluy, Xavier et al. (2007). In vivo MRI of Small Animals: T1-mapping of Rat Myocardium. (external link)
- Seland, John Georg; Bruvold, Morten; Brurok, Heidi et al. (2006). Studying water exchange in biological tissue using two dimensional relaxation and diffusion measurements. (external link)
- Bruvold, Morten; Seland, John Georg; Skarra, Sissel et al. (2006). Changes in T1 and T2 Components in Global Ischemic Rat Heart Tissue. (external link)
- Bruvold, Morten; Brurok, Heidi; Krane, Jostein et al. (2005). Differentiating between Intracellular and Extracellular Relaxivities in Rat Myocardium Using MEMRI. (external link)
- Scheven, Ulrik; Seland, John Georg; Cory, David (2004). NMR-propagator measurements in porous media in the presence of surface relaxation and internal fields. (external link)
- Seland, John Georg; Washburn, Kathryn; Anthonsen, Henrik et al. (2004). Correlations between internal gradients and transverse relaxation in porous systems containing oil and water. (external link)
- Seland, John Georg; Washburn, Kathryn; Anthonsen, Henrik et al. (2004). Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water . (external link)
- Seland, John Georg; Bruvold, Morten; Anthonsen, Henrik et al. (2004). Determination of water compartments in rat myocardium using combined D-T1 and T1-T2 experiments. (external link)
- Seland, John Georg; Anthonsen, Henrik; Nordhøy, Wibeke et al. (2004). An Analysis of Water Compartments in Excised Rat Myocardium. (external link)
- Anthonsen, Henrik; Sørland, Geir; Seland, John Georg et al. (2004). Characterization of Heterogeneous Systems Using Combinations of PFG and CPMG NMR Measurements. (external link)
- Seland, John Georg; Washburn, Kate; Sørland, Geir H et al. (2003). Correlations Between Transverse Relaxation and Internal Gradients in Porous Systems Containing Oil and Water. (external link)
- Anthonsen, Henrik; Sørland, Geir; Seland, John Georg et al. (2003). Diffusion and T2-Distributions of water simultaneously present in porous rock. (external link)
- Seland, John Georg; Sørland, Geir H; Anthonsen, Henrik et al. (2003). Exploring the Separate NMR Responses from Crude Oil and Water Simultaneously Present in Rock Cores. (external link)
- Seland, John Georg; Sørland, Geir; Anthonsen, Henrik et al. (2002). Kombinerte Diffusjon- og relaksasjonsmålinger for karakterisering av heterogene systemer. (external link)
- Anthonsen, Henrik; Sørland, Geir; Seland, John Georg et al. (2002). Utplassering av en virtuell kjernemagnetisk resonans fasilitet, VNMRF. (external link)
- Seland, John Georg (2000). Diffusjonsmålinger ved lange observasjonstider i systemer med interne gradienter. (external link)
Doctoral dissertation
- Wisniewska-Dale, Malgorzata Anna; Seland, John Georg (2019). Characterizing mass transport in hydrogels using Nuclear Magnetic Resonance. (external link)
- Lewis, Rhiannon Tveiten; Seland, John Georg (2015). Characterizing liquid dynamics and surface interactions in porous materials using Nuclear Magnetic Resonance. (external link)
- Bruvold, Morten; Jynge, Per; Brurok, Heidi et al. (2008). Manganese and Water in Cardiac Magnetic Resonance Imaging. (external link)
Programme participation
See a complete overview of publications in 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).
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"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).
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"High Frequency Modulated Gradient Spin Echo Diffusion Measurements with Chemical Shift Resolution" J. G. Seland, Diffusion Fundamentals, 14 7, (2010).
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"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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“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).
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“Measurement of diffusion in porous polythylene powder using PFGSTE NMR” J. G. Seland and B. Hafskjold, Magn. Reson. Imag. 16, 687 (1998).
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“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).