Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Mehran Mostafavi"'
Autor:
Zhiwen Jiang, Carine Clavaguéra, Changjiang Hu, Sergey A. Denisov, Shuning Shen, Feng Hu, Jun Ma, Mehran Mostafavi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Time-resolved identification of surface-bound intermediates on metallic nanocatalysts is imperative to develop an accurate understanding of the elementary steps of CO2 reduction. Direct observation on initial electron transfer to CO2 to form
Externí odkaz:
https://doaj.org/article/dd5cf0f56fcd48baa7d82b3d222e5672
Autor:
Amel Zorai, Abdelhafid Souici, Daniel Adjei, Diana Dragoe, Eric Rivière, Salim Ouhenia, Mehran Mostafavi, Jacqueline Belloni
Publikováno v:
Nanomaterials, Vol 14, Iss 12, p 1015 (2024)
Ultra-small magnetic Fe3O4 nanoparticles are successfully synthesized in basic solutions by using the radiolytic method of the partial reduction in FeIII in the presence of poly-acrylate (PA), or by using the coprecipitation method of FeIII and FeII
Externí odkaz:
https://doaj.org/article/c46eca26916c4608bedc8d26047ce75a
Autor:
Changjiang Hu, Zhiwen Jiang, Qunyan Wu, Shuiyan Cao, Qiuhao Li, Chong Chen, Liyong Yuan, Yunlong Wang, Wenyun Yang, Jinbo Yang, Jing Peng, Weiqun Shi, Maolin Zhai, Mehran Mostafavi, Jun Ma
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract The efficient use of renewable X/γ-rays or accelerated electrons for chemical transformation of CO2 and water to fuels holds promise for a carbon-neutral economy; however, such processes are challenging to implement and require the assistan
Externí odkaz:
https://doaj.org/article/28a28d03c95b4f70ad2d13ad7aa4b400
Publikováno v:
Antioxidants, Vol 12, Iss 6, p 1202 (2023)
The successive steps of the oxidation mechanism of crocin, a major compound of saffron, by the free OH• radical are investigated by pulse radiolysis, steady-state (gamma) radiolysis methods, and molecular simulations. The optical absorption propert
Externí odkaz:
https://doaj.org/article/152f359077af40fb861921cec802e974
Autor:
Jun Ma, Anil Kumar, Yusa Muroya, Shinichi Yamashita, Tsuneaki Sakurai, Sergey A. Denisov, Michael D. Sevilla, Amitava Adhikary, Shu Seki, Mehran Mostafavi
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Radiation-induced low-energy electrons in solution are implicated in DNA damage, but their relaxation dynamics are not well understood. Here the authors observe how quasi-free electrons dissociate glycosidic bonds via an excited nucleoside anion radi
Externí odkaz:
https://doaj.org/article/f58a15dcfe324e5c8e476dd5af58d080
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)
Abstract The ionizing radiation in aqueous solutions of gold nanoparticles, stabilized by electrostatic non-covalent intermolecular forces and steric interactions, with antimicrobial compounds, are investigated with picosecond pulse radiolysis techni
Externí odkaz:
https://doaj.org/article/41ac8718978947a9baeb92534e567d8c
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 727 (2021)
The ability of gold nanoparticles (AuNPs) to catalyze reactions involving radicals is poorly studied. However, AuNPs are used in applications where chemical reactions involving transient radicals occur. Herein, we investigate AuNPs’ catalytic effec
Externí odkaz:
https://doaj.org/article/8ca9a18243494f9fa3e61a31d4042098
Publikováno v:
Nanomaterials, Vol 10, Iss 12, p 2478 (2020)
Gold nanoparticles are known to cause a radiosensitizing effect, which is a promising way to improve radiation therapy. However, the radiosensitization mechanism is not yet fully understood. It is currently assumed that gold nanoparticles can influen
Externí odkaz:
https://doaj.org/article/9d0f0c5b8e5f4583bb3b3a0d205db8df
Publikováno v:
International Journal of Molecular Sciences, Vol 20, Iss 19, p 4963 (2019)
Among the radicals (hydroxyl radical (•OH), hydrogen atom (H•), and solvated electron (esol−)) that are generated via water radiolysis, •OH has been shown to be the main transient species responsible for radiation damage to DNA via the indire
Externí odkaz:
https://doaj.org/article/3fe4c5ff82864f0aad8cd347af9aaadb
Publikováno v:
Molecules, Vol 23, Iss 2, p 244 (2018)
Oxidation reactions by radicals constitute a very important class of chemical reactions in solution. Radiation Chemistry methods allow producing, in a controlled way, very reactive oxidizing radicals, such as OH•, CO3•–, NO3•, SO4•–, and
Externí odkaz:
https://doaj.org/article/6a09e4b9f0ed4c159bd1e8766397561e