Eugene Mamontov

Summary

Affiliation: Oak Ridge National Laboratory
Country: USA

Publications

  1. ncbi request reprint High-resolution neutron-scattering study of slow dynamics of surface water molecules in zirconium oxide
    E Mamontov
    National Institute of Standards and Technology NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 8562, USA
    J Chem Phys 123:24706. 2005
  2. doi request reprint Microscopic diffusion dynamics of silver complex-based room-temperature ionic liquids probed by quasielastic neutron scattering
    Eugene Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
    Chemphyschem 12:944-50. 2011
  3. ncbi request reprint Dynamics of water confined in single- and double-wall carbon nanotubes
    E Mamontov
    NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899 8562, USA
    J Chem Phys 124:194703. 2006
  4. doi request reprint Microscopic relaxations in a protein sustained down to 160K in a non-glass forming organic solvent
    E Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Electronic address
    Biochim Biophys Acta 1861:3513-3519. 2017
  5. doi request reprint Proton dynamics in N,N,N',N'-Tetramethylguanidinium Bis(perfluoroethylsulfonyl)imide protic ionic liquid probed by quasielastic neutron scattering
    Eugene Mamontov
    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    J Phys Chem B 113:159-69. 2009
  6. doi request reprint Diffusion dynamics of water molecules in a LiCl solution: a low-temperature crossover
    Eugene Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    J Phys Chem B 113:14073-8. 2009
  7. doi request reprint Nanometer-sized dynamic entities in an aqueous system
    E Mamontov
    Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    Phys Chem Chem Phys 17:4466-71. 2015
  8. doi request reprint Boiling temperature as a scaling parameter for the microscopic relaxation dynamics in molecular liquids
    Eugene Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    J Phys Chem B 117:9501-7. 2013
  9. doi request reprint Slow dynamics of water molecules in an aqueous solution of lithium chloride probed by neutron spin-echo
    E Mamontov
    Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    Phys Chem Chem Phys 15:10732-9. 2013
  10. doi request reprint Water-protein dynamic coupling and new opportunities for probing it at low to physiological temperatures in aqueous solutions
    Eugene Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    Phys Chem Chem Phys 14:11573-88. 2012

Collaborators

Detail Information

Publications24

  1. ncbi request reprint High-resolution neutron-scattering study of slow dynamics of surface water molecules in zirconium oxide
    E Mamontov
    National Institute of Standards and Technology NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 8562, USA
    J Chem Phys 123:24706. 2005
    ....
  2. doi request reprint Microscopic diffusion dynamics of silver complex-based room-temperature ionic liquids probed by quasielastic neutron scattering
    Eugene Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
    Chemphyschem 12:944-50. 2011
    ..The slowest component describes the long-range cationic translational diffusion. A possible link between the microscopic diffusion parameters and the structural features of the cations comprising these two ionic liquids is discussed...
  3. ncbi request reprint Dynamics of water confined in single- and double-wall carbon nanotubes
    E Mamontov
    NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899 8562, USA
    J Chem Phys 124:194703. 2006
    ..In the latter case, the dynamics of water simply follows a Vogel-Fulcher-Tammann law. This suggests that the fragile-to-strong crossover for water in the 16 A nanotubes may be shifted to a lower temperature...
  4. doi request reprint Microscopic relaxations in a protein sustained down to 160K in a non-glass forming organic solvent
    E Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Electronic address
    Biochim Biophys Acta 1861:3513-3519. 2017
    ..We have studied microscopic dynamics of a protein in carbon disulfide, a non-glass forming solvent, down to its freezing temperature of ca. 160K...
  5. doi request reprint Proton dynamics in N,N,N',N'-Tetramethylguanidinium Bis(perfluoroethylsulfonyl)imide protic ionic liquid probed by quasielastic neutron scattering
    Eugene Mamontov
    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    J Phys Chem B 113:159-69. 2009
    ..4 x 10(-10) to 1.4 x 10(-10) m(2)/s in the temperature range of 320-360 K...
  6. doi request reprint Diffusion dynamics of water molecules in a LiCl solution: a low-temperature crossover
    Eugene Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    J Phys Chem B 113:14073-8. 2009
    ..The results suggest that the dynamic crossover observed in the current and many recent experiments is not linked to the specific properties of water; instead, it may represent a more general dynamic transition...
  7. doi request reprint Nanometer-sized dynamic entities in an aqueous system
    E Mamontov
    Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    Phys Chem Chem Phys 17:4466-71. 2015
    ..Our approach, therefore, can be applied to probe the characteristic length scale of the dynamic entities associated with slow dynamics in glass-forming liquids, which presently cannot be studied by other experimental techniques. ..
  8. doi request reprint Boiling temperature as a scaling parameter for the microscopic relaxation dynamics in molecular liquids
    Eugene Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    J Phys Chem B 117:9501-7. 2013
    ..The propensity to supercooling and eventually forming a glass is thus determined by a purely thermodynamic factor, T(b)/T(m)...
  9. doi request reprint Slow dynamics of water molecules in an aqueous solution of lithium chloride probed by neutron spin-echo
    E Mamontov
    Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    Phys Chem Chem Phys 15:10732-9. 2013
    ..We propose a simple method for such analysis...
  10. doi request reprint Water-protein dynamic coupling and new opportunities for probing it at low to physiological temperatures in aqueous solutions
    Eugene Mamontov
    Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    Phys Chem Chem Phys 14:11573-88. 2012
    ..The first experiment of this kind using quasielastic neutron scattering is discussed, and more experiments are proposed...
  11. doi request reprint A low-temperature crossover in water dynamics in an aqueous LiCl solution: diffusion probed by neutron spin-echo and nuclear magnetic resonance
    E Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 6473, USA
    J Phys Chem B 114:16737-43. 2010
    ..Our results are consistent with a scenario in which more than one relaxational component may exist below the temperature of the dynamic crossover in water...
  12. doi request reprint A time-of-flight backscattering spectrometer at the Spallation Neutron Source, BASIS
    E Mamontov
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    Rev Sci Instrum 82:085109. 2011
    ..5 μeV and a large and variable energy transfer range. These ensure an excellent overlap with the dynamic ranges accessible at other inelastic spectrometers at the SNS...
  13. ncbi request reprint Quasielastic neutron scattering study of dynamics of CaCl2 aqueous solution confined in Vycor glass
    E Mamontov
    Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831 6475, USA
    Phys Chem Chem Phys 8:4908-14. 2006
    ..At 260 K, the local diffusion coefficient of water molecules in the H(2)O-CaCl(2) confined in Vycor was only 6% of the value reported for pure water confined in Vycor...
  14. doi request reprint Description of Hydration Water in Protein (Green Fluorescent Protein) Solution
    Stefania Perticaroli
    Shull Wollan Center, a Joint Institute for Neutron Sciences, Quantum Condensed Matter Division, Biology and Soft Matter Division, Chemical and Engineering Materials Division, and Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
    J Am Chem Soc 139:1098-1105. 2017
    ..These results help clarify the seemingly conflicting range of values reported for hydration water retardation as a logical consequence of the different length scales probed by the analytical techniques used...
  15. pmc Dynamics of protein and its hydration water: neutron scattering studies on fully deuterated GFP
    Jonathan D Nickels
    Joint Institute for Neutron Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
    Biophys J 103:1566-75. 2012
    ..Moreover, the suppression of the protein dynamics by the hydration water at low temperatures appears to be stronger in GFP than in other globular proteins. We ascribe this observation to the barrellike structure of GFP...
  16. doi request reprint Quantum Tunneling of Water in Beryl: A New State of the Water Molecule
    Alexander I Kolesnikov
    Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    Phys Rev Lett 116:167802. 2016
    ..In addition, the water proton momentum distribution was measured with deep inelastic neutron scattering, which directly revealed coherent delocalization of the protons in the ground state. ..
  17. doi request reprint Dynamics and rigidity in an intrinsically disordered protein, β-casein
    Stefania Perticaroli
    Joint Institute for Neutron Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
    J Phys Chem B 118:7317-26. 2014
    ..In spite of these differences, CAS dynamics are consistent with the classes of motions seen in folded protein on this time scale. ..
  18. doi request reprint Dynamic behavior of oligomeric inorganic pyrophosphatase explored by quasielastic neutron scattering
    Xiang Qiang Chu
    Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
    J Phys Chem B 116:9917-21. 2012
    ....
  19. pmc Neutron Scattering Studies of the Interplay of Amyloid β Peptide(1-40) and An Anionic Lipid 1,2-dimyristoyl-sn-glycero-3-phosphoglycerol
    Durgesh K Rai
    Biology and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
    Sci Rep 6:30983. 2016
    ..The results revealed that Aβ associates with the highly charged membrane in surface with limited impact on the structure, but the altered membrane dynamics could have more influence on other membrane processes. ..
  20. doi request reprint Strong anisotropic dynamics of ultra-confined water
    Alexander I Kolesnikov
    Chemical and Engineering Materials Division, Chemical Sciences Division, and Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
    J Phys Chem B 118:13414-9. 2014
    ....
  21. doi request reprint Hydration control of the mechanical and dynamical properties of cellulose
    Loukas Petridis
    UT ORNL Center for Molecular Biophysics, Biology and Soft Matter Division, Center for Structural Molecular Biology, and Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
    Biomacromolecules 15:4152-9. 2014
    ..The detailed characterization obtained here describes how hydration-dependent increased fluctuations and hydroxymethyl disorder at the cellulose surface lead to enhancement of the rigidity of this important biomolecule. ..
  22. doi request reprint The origin of the dynamic transition in proteins
    S Khodadadi
    Department of Polymer Science, The University of Akron, Akron, Ohio 44325, USA
    J Chem Phys 128:195106. 2008
    ..The microscopic mechanism of the protein's structural relaxation remains unclear...
  23. ncbi request reprint Experimental evidence of fragile-to-strong dynamic crossover in DNA hydration water
    S H Chen
    Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    J Chem Phys 125:171103. 2006
    ....
  24. pmc Observation of fragile-to-strong dynamic crossover in protein hydration water
    S H Chen
    Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Proc Natl Acad Sci U S A 103:9012-6. 2006
    ....