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We employ a large scale molecular simulation based on bond-order ReaxFF to simulate the chemical reaction and study the damage to a large fragment of DNA-molecule in the solution by ionizing radiation. We illustrate that the randomly…

Biological Physics · Physics 2016-09-28 Ramin M. Abolfath , A. C. T. van Duin , Thomas Brabec

We used density functional theory to computationally design a Zr organometallic catalyst for selectively oxidizing substrates using molecular oxygen as oxidant without coreductant. Each selective oxidation cycle involves four general steps:…

Chemical Physics · Physics 2016-01-01 Bo Yang , Thomas A. Manz

Hydrogen peroxide (H2O2) is an important signaling molecule in cancer cells. However, the significant secretion of H2O2 by cancer cells have been rarely observed. Cold atmospheric plasma (CAP) is a near room temperature ionized gas composed…

Cell Behavior · Quantitative Biology 2017-07-04 Dayun Yan , Haitao Cui , Wei Zhu , Annie Talbot , Lijie Grace Zhang , Jonathan H. Sherman , Michael Keidar

Oxygen reduction catalysts frequently suffer from degradation under harsh operating conditions, and the limited understanding of the underlying mechanisms hampers the development of effective mitigation strategies. In this study, we…

Materials Science · Physics 2025-10-07 Huanhuan Yang , Guangfu Luo

Reactions of SiO molecules have been postulated to initiate efficient formation of silicate dust particles in outflows around dying (AGB) stars. Both OH radicals and H$_2$O molecules can be present in these environments and their reactions…

Astrophysics of Galaxies · Physics 2023-03-10 Stefan Andersson , David Gobrecht , Rosendo Valero

We found that carbon-associated byproducts formed at the dry-oxidized SiO2/SiC(0001) interface could be decomposed and be taken out to the SiO2 side by high-purity Ar annealing. We evaluated the concentration of the ejected carbon atoms in…

Materials Science · Physics 2017-10-03 Takuma Kobayashi , Tsunenobu Kimoto

Oxygen evolution reaction (OER) with intractable high overpotential is the rate-limiting step for rechargeable metal-air battery, water electrolysis systems, and solar fuels devices. There exists a spin state transition from spin singlet…

Materials Science · Physics 2020-04-14 Xiaoning Li , Zhenxiang Cheng , Xiaolin Wang

We consider a diatomic molecule driven by a linearly polarized laser pulse with a polarization axis rotating with a constant acceleration. This setup is referred to as optical centrifuge, and it is known to lead to high-angular momenta for…

Chaotic Dynamics · Physics 2023-06-21 Cristel Chandre , J. Pablo Salas

Developing a green and cost-effective catalytic system for the selective oxidation of biomass-derived alcohols is vital for the sustainable synthesis of fine chemicals. Herein, highly dispersed subnanometric amorphous CoOx clusters in…

Chemical Physics · Physics 2024-03-26 Zhiwei Jiang , Zhiyue Zhao , Xin Li , Huaiguang Li , Hector F. Garces , Mahmoud Amer , Kai Yan

We propose a method for controlling a class of low temperature chemical reactions. Specifically, we show the hydrogen abstraction channel in the reaction of formaldehyde (H$_{2}$CO) and the hydroxyl radical (OH) can be controlled through…

Properties of oxides are interpreted as a result of existence of the virtual sublattices formed by the atomic quantum states. An infinite cluster with the superconductivity of the Bose-Einstein condensate kind can be formed in the ground…

Superconductivity · Physics 2007-05-23 V. N. Bogomolov

The origin of photodamage of single cells confined in laser tweezers is determined by comparison of action spectra with these recorded for a photoinduced response of cell populations. Triplet-singlet transitions in dissolved oxygen provide…

Biological Physics · Physics 2009-11-25 S. D. Zakharov N. C. Thanh

This submission has been withdrawn by arXiv administration due to complaints of misuse of institutional affiliation.

Biomolecules · Quantitative Biology 2007-05-23 Kelath Murali Manoj

An atmospheric plasma torch has been supplied with a gaseous mixture of helium, water vapour and/or oxygen to study the production of reactive species within its flowing post-discharge, in particular hydrogen peroxide. The mechanisms…

Plasma Physics · Physics 2016-05-02 Thierry Dufour , N. El-Mourad , Caroline De Vos , F Reniers

Sulfur dioxide (SO2) is a sulfur-containing molecule expected to exist as a solid in the interstellar medium (ISM). In this study, we performed laboratory experiments and computational analyses on the surface reactions of solid SO2 with…

Astrophysics of Galaxies · Physics 2024-11-15 Thanh Nguyen , Yasuhiro Oba , W. M. C. Sameera , Kenji Furuya , Naoki Watanabe

Changes in the medium of biological cell nucleus under ion beam action is considered as a possible cause of cell functioning disruption in the living body. As the most long-lived molecular product appeared in the cell after the passage of…

Biological Physics · Physics 2015-06-12 D. V. Piatnytskyi , O. O. Zdorevskyi , S. M. Perepelytsya , S. N. Volkov

The chemical inertness of the defect-free basal plane confers environmental stability to MoS2 single-layers, but it also limits their chemical versatility and catalytic activity. The stability of the pristine MoS2 basal plane against…

Catalysis is indispensable to chemical processes and relevant to many aspects of modern life. Owing to the intriguing electronic structures and good ionic properties, multivalent transition metal oxides have attracted attention as key…

Supercritical CO2 (scCO2) plays a crucial role as a solvent in separation processes, advanced power cycles, and materials processing. Nonetheless, the atomistic comprehension of how the dense scCO2 matrix influences the fundamental reaction…

This work explores the role of oxygen in industrial methane oxidation. Oxygen, a well-known oxidizing agent, drives CH$_4$ conversion to CO$_2$ and H$_2$O. We report how oxygen influences oxidation on single Pd and PdO clusters supported on…

Materials Science · Physics 2025-09-23 Shalini Tomar , Hojin Jeong , Joon Hwan Choi , Seung-Cheol Lee , Satadeep Bhattacharjee