Molecular Dynamics and Proton Hyperpolarization via Synthetic and Crude Oil Porphyrin Complexes in Solid and Solution States

Field-cycling NMR and DNP – A friendship with benefits

(2021) Bulat Gizatullin et al.   JOURNAL OF MAGNETIC RESONANCE

Nitroxide Derivatives for Dynamic Nuclear Polarization in Liquids: The Role of Rotational Diffusion

(2020) M. Levien et al.   Journal of Physical Chemistry Letters

Electron Paramagnetic Resonance Study of the Fractions and Trapped Compounds in Asphaltenes of Merey Heavy Crude Oils and Its Vacuum Residue

(2020) Maury S. Hernández et al.   ENERGY & FUELS

Mechanisms of Asphaltene Aggregation: Puzzles and a New Hypothesis

(2020) Yunlong Zhang et al.   ENERGY & FUELS

Solvent-Dependent Self-Assemblies and Pyridine Modulation of a Porphyrin Molecule at Liquid/Solid Interfaces

(2020) Jingfei Hou et al.   LANGMUIR

Composition and Properties of Heavy Oil Resins

(2020) M. R. Yakubov et al.   PETROLEUM CHEMISTRY

Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC–MS, NMR, and SEM–EDX with the Aid of EPR as a Complementary Technical Analysis

(2020) Richard Djimasbe et al.   ACS Omega

Dynamic Nuclear Polarization with Vanadium(IV) Metal Centers

(2020) Sheetal Kumar Jain et al.   Chem

Vanadyl Porphyrin Speciation Based on Submegahertz Ligand Proton Hyperfine Couplings

(2019) Donald Mannikko et al.   ENERGY & FUELS

Native Vanadyl Complexes in Crude Oil as Polarizing Agents for In Situ Proton Dynamic Nuclear Polarization

(2019) Bulat Gizatullin et al.   ENERGY & FUELS

Perspective of Overhauser dynamic nuclear polarization for the study of soft materials

(2018) Joshua R. Biller et al.   CURRENT OPINION IN COLLOID & INTERFACE SCIENCE

EPR study of spectra transformations of the intrinsic vanadyl-porphyrin complexes in heavy crude oils with temperature to probe the asphaltenes' aggregation

(2018) M.R. Gafurov et al.   JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING

Multiscale nuclear magnetic relaxation dispersion of complex liquids in bulk and confinement

(2018) Jean-Pierre Korb   PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

Understanding Overhauser Dynamic Nuclear Polarisation through NMR relaxometry

(2018) Giacomo Parigi et al.   MOLECULAR PHYSICS

Study of Organic Self-Assembled Nanosystems by Means of High-Frequency ESR/ENDOR: The Case of Oil Asphaltenes

(2018) M. R. Gafurov et al.   RUSSIAN JOURNAL OF GENERAL CHEMISTRY

Applications of Pulsed Electron Paramagnetic Resonance Spectroscopy to the Identification of Vanadyl Complexes in Asphaltene Molecules. Part 2: Hydrotreatment Monitoring

(2017) Karima Ben Tayeb et al.   ENERGY & FUELS

In Situ Identification of Various Structural Features of Vanadyl Porphyrins in Crude Oil by High-Field (3.4 T) Electron–Nuclear Double Resonance Spectroscopy Combined with Density Functional Theory Calculations

(2017) Timur Biktagirov et al.   ENERGY & FUELS

The role of metalloporphyrins on the physical-chemical properties of petroleum fluids

(2017) Hugo Santos Silva et al.   FUEL

Molecular dynamics-based selectivity for Fast-Field-Cycling relaxometry by Overhauser and solid effect dynamic nuclear polarization

(2017) Oliver Neudert et al.   JOURNAL OF MAGNETIC RESONANCE

Electron Spin Resonance of Slowly Rotating Vanadyls–Effective Tool to Quantify the Sizes of Asphaltenes in Situ

(2016) Sergey N. Trukhan et al.   ENERGY & FUELS

Toward the Asphaltene Structure by Electron Paramagnetic Resonance Relaxation Studies at High Fields (3.4 T)

(2016) G. V. Mamin et al.   ENERGY & FUELS

Basic facts and perspectives of Overhauser DNP NMR

(2016) Enrico Ravera et al.   JOURNAL OF MAGNETIC RESONANCE

A compact X-Band resonator for DNP-enhanced Fast-Field-Cycling NMR

(2016) Oliver Neudert et al.   JOURNAL OF MAGNETIC RESONANCE

Dipolar relaxation revisited: A complete derivation for the two spin case

(2015) Abhishek Gupta et al.   CONCEPTS IN MAGNETIC RESONANCE PART A

Relation and Correlation between NMR Relaxation Times, Diffusion Coefficients, and Viscosity of Heavy Crude Oils

(2015) Jean-Pierre Korb et al.   Journal of Physical Chemistry C

Electron Paramagnetic Resonance Study of Rotational Mobility of Vanadyl Porphyrin Complexes in Crude Oil Asphaltenes: Probing the Effect of Thermal Treatment of Heavy Oils

(2014) T. B. Biktagirov et al.   ENERGY & FUELS

Dynamic nuclear polarization enhancement of protons and vanadium-51 in the presence of pH-dependent vanadyl radicals

(2014) Angel J. Perez Linde et al.   MAGNETIC RESONANCE IN CHEMISTRY

1H relaxation dispersion in solutions of nitroxide radicals: Influence of electron spin relaxation

(2013) D. Kruk et al.   JOURNAL OF CHEMICAL PHYSICS

The interplay between the solid effect and the cross effect mechanisms in solid state 13C DNP at 95GHz using trityl radicals

(2013) Debamalya Banerjee et al.   JOURNAL OF MAGNETIC RESONANCE

The Fractal Aggregation of Asphaltenes

(2013) Michael P. Hoepfner et al.   LANGMUIR

A comparative study of 1H and 19F Overhauser DNP in fluorinated benzenes

(2013) Oliver Neudert et al.   PHYSICAL CHEMISTRY CHEMICAL PHYSICS

EPR, ENDOR, and HYSCORE Study of the Structure and the Stability of Vanadyl−Porphyrin Complexes Encapsulated in Silica: Potential Paramagnetic Biomarkers for the Origin of Life

(2010) Didier Gourier et al.   JOURNAL OF PHYSICAL CHEMISTRY B

Probing Asphaltene Aggregation in Native Crude Oils with Low-Field NMR

(2010) Lukasz Zielinski et al.   LANGMUIR

Water 1H relaxation dispersion analysis on a nitroxide radical provides information on the maximal signal enhancement in Overhauser dynamic nuclear polarization experiments

(2010) Marina Bennati et al.   PHYSICAL CHEMISTRY CHEMICAL PHYSICS

The Solid Effect

(2008) W. T. Wenckebach   APPLIED MAGNETIC RESONANCE

Dynamic Nuclear Polarization Enhanced Nuclear Magnetic Resonance and Electron Spin Resonance Studies of Hydration and Local Water Dynamics in Micelle and Vesicle Assemblies

(2008) Evan R. McCarney et al.   LANGMUIR