- E-postJohn.Seland@uib.no
- Telefon+47 55 58 82 20
- BesøksadresseAllégaten 41Realfagbygget5007 BergenRom3051-D
- PostadressePostboks 78035020 Bergen
Min forskning er fokusert på karakterisering av molekylers dynamikk og organisering i ulike typer materialer ved bruk av Kjerne Magnetisk Resonans (NMR) spektroskopi og MR-avbildning. Teknikkene som benyttes er basert på hvordan dynamiske prosesser som relaksasjon og diffusjon påvirker signalet, og hva dette kan fortelle oss om vekselvirkninger mellom molekylene. Jeg jobber spesielt med karakterisering av væskefylte porøse systemer, ulike former for myke materialer, og anvendelser innen medisinsk avbildning.
- (2022). 31P solid-state NMR on skeletal muscle of wild and farmed Atlantic salmon. Results in Chemistry. 4 sider.
- (2021). Multidimensional dynamic NMR correlations in sedimentary rock cores at different liquid saturations. Journal of magnetic resonance (San Diego, Calif. 1997 : Print).
- (2020). Effect of Mineral Composition on Transverse Relaxation Time Distributions and MR Imaging of Tight Rocks from Offshore Ireland. Minerals. 232.
- (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. 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.
- (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.
- (2022). Investigating Ice Formation with NMR and Contact Angle Goniometry.
- (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.
- (2006). Nye hjertebilder.
- (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.
- (2020). MnDPDP: Contrast agent for imaging and protection of viable tissue. Contrast Media & Molecular Imaging. 1-17.
Se fullstendig oversikt over publikasjoner i CRIStin.
- Nanoparticles for Enhanced Oil Recovery: Phase Transition of Aluminum-Cross-Linked Partially Hydrolyzed Polyacrylamide under Low-Salinity Conditions by Rheology and Nuclear Magnetic Resonance" A. S. Kedir, J. G. Seland, A. Skauge, T. Skauge. Energy Fuels, 28 (5), 2948–2958 (2014).
"Nanoparticles for Enhanced Oil Recovery: Influence of pH on Aluminum-Cross-linked Partially Hydrolyzed Polyacrylamide-Investigation by Rheology and NMR" A. S. Kedir, J. G. Seland, A. Skauge, T. Skauge. Energy Fuels, 28 (4), 2343–2351, (2014),
- "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).
- Kjernemagnetisk resonans (NMR/MRI)
- Diffusjon
- Porøse systemer
Vitenskaplig erfaring
Aug. 2008 - : Førsteamanuensis, Kjemisk institutt, Universitetet i Bergen, Bergen, Norge.
Nov. 2003-Aug. 2008: Forsker, Institutt for sirkulasjon og bildediagnostikk, Norges teknisk-naturvitenskaplige universitet, Trondheim, Norge
April 2005-Jul. 2005: Forsker, Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, USA
Jan. 2003-April. 2003: Forsker, Institutt for kjemi, Norges teknisk-naturvitenskaplige universitet, Trondheim, Norge
April 2003-Jul. 2003: Forsker, Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, USA
Jan. 2002-Des.2002: Forsker, Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, USA
Jan. 2001-Des. 2001: Post Doktor, Institutt for kjemi, Norges teknisk-naturvitenskaplige universitet, Trondheim, Norge
Utdannelse
Dr. Ing. i fysikalsk kjemi, Norges teknisk-naturvitenskaplige universitet, Trondheim, Norge, 2000
Hovedfag i fysikalsk kjemi, Universitet i Oslo, Oslo, Norge, 1994