نتایج جستجو برای: مولکول c60

تعداد نتایج: 6841  

2011
S. V. Prylutska A. P. Burlaka P. P. Klymenko I. I. Grynyuk Yu. I. Prylutskyy Ch. Schütze U. Ritter

Growth experiments of transplanted malignant tumors in the presence of water-soluble C60 fullerenes were performed on groups of mice. It was found that C60 fullerenes efficiently inhibit the growth of transplanted malignant tumors. This behavior can be explained through their high antioxidant activity and the blocking of the specific cell receptors (for example, endothelial growth factor). The ...

Journal: :Chemical communications 2015
Chia-Hsiang Chen Amineh Aghabali Catalina Suarez Marilyn M Olmstead Alan L Balch Luis Echegoyen

The reaction of the tetrakis[di(ethoxycarbonyl)methano]-C60 (1) with Ru3(CO)12 afforded the first bis-parallel C60-metal cluster complex: parallel-[Ru3(CO)9]2{μ3-η(2),η(2),η(2)-C60[C(COOC2H5)2]4}. The two triruthenium groups are found in either a parallel or a tilted orientation relative to each other, as determined by NMR. Only the parallel form was characterized by X-ray crystallography.

Journal: :Chemical communications 2015
Christina M Davis Kei Ohkubo Aaron D Lammer Dong Sub Kim Yuki Kawashima Jonathan L Sessler Shunichi Fukuzumi

Binding of a porphyrin carboxylate anion () to tetrathiafulvalene calix[4]pyrrole (TTF-C4P) results in electron transfer from TTF-C4P to Li(+)@C60 to produce the charge-separated state (1/TTF-C4P˙(+)/Li(+)@C60˙(-)) in benzonitrile. Upon photoexcitation of , photoinduced electron transfer from the triplet excited state of to TTF-C4P˙(+) occurs to produce the higher energy charge-separated state ...

Journal: :Basic & clinical pharmacology & toxicology 2009
Shinya Kato Hisae Aoshima Yasukazu Saitoh Nobuhiko Miwa

Fullerene-C60 (C60) is mainly applied in the aqueous phase by wrapping with water-soluble polymer or by water-solublizing chemical-modification, whereas C60 dissolved in oil is scarcely applied; still less explicable is its toxicity.We dissolved C60 in squalane at near-saturated or higher concentrations (220-500 ppm), named LipoFullerene (LF-SQ),and examined its biological safety. LF-SQ was adm...

Journal: :Microchemical Journal 2022

This work shows the potential of modified screen-printed carbon electrodes (SPCEs) for sensitive and selective detection 4-ethylphenol in wine. Gold nanoparticles (AuNPs) fullerene C60 (C60), sensors have been compared. pH supporting electrolyte, deposition time working temperature optimized considering their influence voltammetric pulse response 4-ethylphenol. Under optimal conditions measurem...

Journal: :Astronomy and Astrophysics 2021

Context. Insight into the conditions that drive physics and chemistry in interstellar clouds is gained from determining abundance charge state of their components. Aims. We propose an evaluation C60:C60+ ratio diffuse translucent exploits electronic absorption bands so as not to rely on ambiguous IR emission measurements. Methods. The determined by analyzing archival spectra literature data. In...

Journal: :Crystals 2023

As a newly synthesized two-dimensional carbon material, the stability study of monolayer fullerene networks or quasi-hexagonal phase fullerenes (qhp-C60) is timely desirable. We have investigated stabilities qhp-C60, including thermal, structural, mechanical, and thermodynamic stabilities, as well bonding characteristics, ductility, mechanical properties, via first-principles calculations. The ...

2016
Alina Astefanei Oscar Núñez M. Teresa Galceran

1 2 As the interest in the use of fullerene compounds in biomedical and cosmetic applications 3 increases, so too does the need to develop methods for their determination and quantitation in such 4 complex matrices. In this work we studied the behavior of C60 and C70 fullerenes in non-aqueous 5 capillary electrophoresis, as well as two C60 fullerene derivatives not previously reported by any 6 ...

Journal: :The journal of physical chemistry. B 2005
P Ravi S Dai K C Tam

A well-defined poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA-b-C60) was synthesized using the atom transfer radical polymerization (ATRP) technique and betainized with 1,3-sulfobetaine to yield a Bet-PDMAEMA-b-C60. The solution properties were then studied by light transmittance, viscometric, 1H NMR laser light scattering, and transmission electron macroscopic techniques. It was found that...

Journal: :Bulletin of the Chemical Society of Japan 2021

The self-assembly of molecules into complex superstructures underpins the functionality many biological processes and physical materials. Many such structures stem from amphiphilic monomer units, with attractions repulsions between their ends determining structure state assembled system under equilibrium, which affect its function. photophysical electronic properties fullerene (C60) have been e...

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