Results 51 to 60 of about 230,876 (232)

From ab initio quantum chemistry to molecular dynamics: The delicate case of hydrogen bonding in ammonia [PDF]

open access: yes, 2003
The ammonia dimer (NH3)2 has been investigated using high--level ab initio quantum chemistry methods and density functional theory (DFT). The structure and energetics of important isomers is obtained to unprecedented accuracy without resorting to ...
Boese, A. Daniel   +3 more
core   +2 more sources

Structures of Trypanosoma brucei methionyl-tRNA synthetase with urea-based inhibitors provide guidance for drug design against sleeping sickness. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2014
Methionyl-tRNA synthetase of Trypanosoma brucei (TbMetRS) is an important target in the development of new antitrypanosomal drugs. The enzyme is essential, highly flexible and displaying a large degree of changes in protein domains and binding pockets in
Cho Yeow Koh   +12 more
doaj   +1 more source

On the Thermal Stability of Graphone

open access: yes, 2011
Molecular dynamics simulation is used to study thermally activated migration of hydrogen atoms in graphone, a magnetic semiconductor formed of a graphene monolayer with one side covered with hydrogen so that hydrogen atoms are adsorbed on each other ...
A. I. Podlivaev   +24 more
core   +1 more source

Ni-dispersed fullerenes: Hydrogen storage and desorption properties [PDF]

open access: yes, 2006
Our study shows that the H2 storage media using Ni-dispersed fullerenes could be viable alternatives to reversible hydrogen storage. It is demonstrated that a single Ni coated on the fullerene surface can store up to three H2 molecules.
Goddard, William A., III   +3 more
core   +1 more source

Anti-malarial activity of a non-piperidine library of next-generation quinoline methanols

open access: yesMalaria Journal, 2010
Background The clinical utility for mefloquine has been eroded due to its association with adverse neurological effects. Better-tolerated alternatives are required.
Melendez Victor   +13 more
doaj   +1 more source

Dissociation of hydrogen molecules on the clean and hydrogen-preadsorbed Be(0001) surface

open access: yes, 2011
Using first-principles calculations, we systematically study the potential energy surfaces and dissociation processes for hydrogen molecules on the clean and hydrogen-preadsorbed Be(0001) surfaces.
Allouche   +37 more
core   +1 more source

An alternate proton acceptor for excited-state proton transfer in green fluorescent protein: Rewiring GFP [PDF]

open access: yes, 2008
The neutral form of the chromophore in wild-type green fluorescent protein (wtGFP) undergoes excited-state proton transfer (ESPT) upon excitation, resulting in characteristic green (508 nm) fluorescence.
Jaye, Andrew A.   +5 more
core   +1 more source

Very Strong Hydrogen Bond in Nitrophthalic Cocrystals

open access: yesMolecules
This work presents the studies of a very strong hydrogen bond (VSHB) in biologically active phthalic acids. Research on VSHB comes topical due to its participation in many biological processes.
Kinga Jóźwiak   +5 more
doaj   +1 more source

H/D Isotope Effects in Hydrogen Bonded Systems

open access: yesMolecules, 2013
An extremely strong H/D isotope effect observed in hydrogen bonded A-H…B systems is connected with a reach diversity of the potential shape for the proton/deuteron motion.
Aleksander Filarowski   +2 more
doaj   +1 more source

First principle study of hydrogen behavior in hexagonal tungsten carbide

open access: yes, 2010
Understanding the behavior of hydrogen in hexagonal tungsten carbide (WC) is of particular interest for fusion reactor design due to the presence of WC in the divertor of fusion reactors.
Chen, Jun-Ling   +5 more
core   +1 more source

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