Results 31 to 40 of about 116,652 (327)

λ/2 Fabry Pérot micro-resonators in single molecule spectroscopy

open access: yesEPJ Web of Conferences, 2018
Embedded in a tuneable λ/2-FabryPérot micro-resonator the radiative relaxation of a dye molecule or quantum dot can reproducibly be modified allowing to determine their quantum yield, control Förster energy-transfer or localize them with nanometer ...
Meixner Alfred J.   +4 more
doaj   +1 more source

Spin Labeling of RNA Using “Click” Chemistry for Coarse-grained Structure Determination via Pulsed Electron-electron Double Resonance Spectroscopy

open access: yesBio-Protocol, 2021
Understanding the function of oligonucleotides on a molecular level requires methods for studying their structure, conformational changes, and internal dynamics.
Maria Vicino   +2 more
doaj   +1 more source

Chemistry students’ conceptual difficulties and problem solving behavior in chemical kinetics, as a component of an introductory physical chemistry course

open access: yesChemistry Teacher International, 2022
The identification of undergraduate chemistry students’ conceptual difficulties and common mistakes with basic concepts and problems in chemical kinetics provided the aim for this study, which involved 2nd-year/4th semester students who had passed the ...
Charalampia Stroumpouli   +1 more
semanticscholar   +1 more source

Synthesis of Nanometer Sized Bis- and Tris-trityl Model Compounds with Different Extent of Spin–Spin Coupling

open access: yesMolecules, 2018
Tris(2,3,5,6-tetrathiaaryl)methyl radicals, so-called trityl radicals, are emerging as spin labels for distance measurements in biological systems based on Electron Paramagnetic Resonance (EPR).
J. Jacques Jassoy   +4 more
doaj   +1 more source

Strong inverse kinetic isotope effect observed in ammonia charge exchange reactions

open access: yesNature Communications, 2020
Inverse kinetic isotope effects (KIEs) are rarely observed. Here, the authors report an inverse KIE in the charge transfer reaction of $${{\rm{Xe}}}^{+}$$ Xe+ with ammonia.
L. S. Petralia   +4 more
doaj   +1 more source

Combined Experimental and Theoretical Study of the Competitive Absorption of CO2 and NO2 by a Superbase Ionic Liquid

open access: yesACS Sustainable Chemistry and Engineering, 2021
A superbase ionic liquid (IL), trihexyltetradecylphosphonium benzimidazolide ([P66614][Benzim]), is investigated for the capture of CO2 in the presence of NO2 impurities.
Adam J. Greer   +7 more
semanticscholar   +1 more source

Understanding the Sensing Mechanism of Rh2O3 loaded In2O3

open access: yesProceedings, 2018
The effect of Rh loading on CO sensing was studied for the case of In2O3. This was done by performing measurements with sensors based on loaded and unloaded materials that were performed at an operation temperature of 300 °C in the presence of low ...
Inci Boehme   +5 more
doaj   +1 more source

Probing and Interpreting the Porosity and Tortuosity Evolution of Li-O2 Cathodes on Discharge through a Combined Experimental and Theoretical Approach

open access: yesThe journal of physical chemistry. C, Nanomaterials and interfaces, 2021
Li-O2 batteries offer a high theoretical discharge capacity due to the formation of light discharged species such as Li2O2, which fill the porous positive electrode. However, in practice, it is challenging to reach the theoretical capacity and completely
Amangeldi Torayev   +9 more
semanticscholar   +1 more source

The Role of Efficient Programming in Theoretical Chemistry and Physics Problems [PDF]

open access: yesComputational Methods in Science and Technology, 1996
Various aspects of efficient programming of high-performance computer systems are discussed, using an example from modern electronic structure theory. It is shown that efficient programming is indispensable in today's theoretical studies by reducing drastically involved computer time.
openaire   +2 more sources

Integrating mass spectrometry with MD simulations reveals the role of lipids in Na+/H+ antiporters

open access: yesNature Communications, 2017
Na+/H+antiporters transport sodium or lithium ions across the membrane in exchange for protons. Here the authors combine ion mobility mass spectrometry and molecular dynamics simulations to uncover a facilitating role for lipids in the transport ...
Michael Landreh   +10 more
doaj   +1 more source

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