Results 11 to 20 of about 464,016 (298)

Solvent Induced Proton Hopping at a Water-Oxide Interface [PDF]

open access: yes, 2014
Despite widespread interest, a detailed understanding of the dynamics of proton transfer at interfaces is lacking. Here we use ab initio molecular dynamics to unravel the connection between interfacial water structure and proton transfer for the widely ...
Michaelides, Angelos, Tocci, Gabriele
core   +4 more sources

Intramolecular Proton Transfer in Channelrhodopsins [PDF]

open access: yesBiophysical Journal, 2013
Channelrhodopsins serve as photoreceptors that control the motility behavior of green flagellate algae and act as light-gated ion channels when heterologously expressed in animal cells. Here, we report direct measurements of proton transfer from the retinylidene Schiff base in several channelrhodopsin variants expressed in HEK293 cells.
Sineshchekov, Oleg A.   +4 more
openaire   +2 more sources

Mechanism by which water and protein electrostatic interactions control proton transfer at the active site of channelrhodopsin. [PDF]

open access: yesPLoS ONE, 2018
Channelrhodopsins are light-sensitive ion channels whose reaction cycles involve conformation-coupled transfer of protons. Understanding how channelrhodopsins work is important for applications in optogenetics, where light activation of these proteins ...
Suliman Adam, Ana-Nicoleta Bondar
doaj   +1 more source

Evidence of proton-proton correlations in the 116Sn+60Ni transfer reactions

open access: yesPhysics Letters B, 2022
One and two proton transfer channels have been measured in 116Sn+60Ni with the magnetic spectrometer PRISMA by making an excitation function at several bombarding energies, from above to well below the Coulomb barrier.
L. Corradi   +9 more
doaj   +1 more source

Photoacid behaviour in a fluorinated green fluorescent protein chromophore:Ultrafast formation of anion and zwitterion states [PDF]

open access: yes, 2016
The photophysics of the chromophore of the green fluorescent protein in Aequorea victoria (avGFP) are dominated by an excited state proton transfer reaction.
Baranov   +32 more
core   +1 more source

Proton transfer at subkelvin temperatures

open access: yesPhysical Chemistry Chemical Physics, 2020
Doping cationic helium nanodroplets with H2produces proton donors. Subsequent doping with proton acceptors initiates gentle proton transfer at 0.37 K.
Lukas Tiefenthaler   +4 more
openaire   +4 more sources

High-temperature, solvent-induced proton transfer and double proton transfer in adenine–thymine replaced with deazaadenine

open access: yesAIP Advances, 2020
One way to improve DNA conductivity is to change the mobility of carriers via functional group modification. Based on molecular dynamics calculations, this paper discusses proton transfer between bases after replacing the nitrogen atoms at the 3 and 7 ...
Guiqing Zhang, Yao Wei
doaj   +1 more source

Proton Transfer in Heterocycle Crystals [PDF]

open access: yesPhysical Review Letters, 2004
We study the proton diffusion process in imidazole-based molecular crystals, which are new candidate materials for fuel cell membranes. These materials are characterized by hydrogen bonded networks of molecules, which provide viable routes for the long-range diffusion of protons.
Iannuzzi, M, Parrinello, M
openaire   +3 more sources

Two possible mechanisms of water-assisted proton transfer in the stack of adenine-thymine: Displacement polarization and oriented polarization

open access: yesAIP Advances, 2019
Proton transfer in DNA has attracted much attention because of its close relationship with charge transfer and DNA base damage. In the present study, the relationship between proton transfer and water polarization at a certain temperature in the radical ...
Zengtao Lv   +3 more
doaj   +1 more source

Measurement of polarization transfer in the quasi-elastic Ca40(e→,e′p→) process

open access: yesPhysics Letters B, 2023
Polarization transfer to a bound proton in polarized electron knock-out reactions, A(e→,e′p→), is a powerful tool to look for an in-medium modification of the bound proton.
T. Kolar   +35 more
doaj   +1 more source

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