Recent developments in the field of fullerene C and its derivatives suggest its suitability in a wide range of applications ranging from photovoltaic instruments, development of solar based cells, cosmetics to enzyme inhibition treatment, and so on. These innovative applications raised possibilities of intentional or oblivious human-particle contact leading to possible deleterious effects on human health. The current study deals with the interaction of dextran functionalized fullerene C (Dex-C) on Chinese Hamster Ovary cells. The results showed that the cell viability was not affected by Dex-C treatment even at higher concentrations. Treatment of Dex-C did not affect mitochondrial membrane potential and the integrity of lysosomal and cytoskeletal membrane. DNA ladder assay and nuclear staining showed that the DNA remains intact, and no fragmentation or nuclear condensation was visible. From flow cytometry analysis, the viable population of treated cells was seemed to be remaining similar to that of untreated cells. Hence, from the current result, it is concluded that Dex-C can be a potential candidate for various biomedical applications.
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http://dx.doi.org/10.1116/1.5084002 | DOI Listing |
J Org Chem
January 2025
Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
The synthesis of perfluoroalkylated fullerenes (PFAFs) holds significant importance due to their enhanced molecular stability, increased lipophilicity, and high electron affinity. Herein, we report a copper-catalyzed multicomponent reaction conducted under aerobic conditions, which enables the production of highly soluble PFAFs with half-wave reduction potentials similar to those of C. Furthermore, the challenges posed by C-F coupling in carbon signal assignment were addressed through fluorine-decoupled carbon spectroscopy, facilitating precise structural characterization of the perfluoroalkyl moieties.
View Article and Find Full Text PDFOrg Lett
January 2025
State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People's Republic of China.
KOBu-promoted [3 + 2] cycloaddition of dimethyl sulfoxide (DMSO) with fullerenes has been developed for facile and efficient one-pot synthesis of 1,2,3,4-cyclic sulfoxide-fused [60]/[70]fullerene dihydrides, which offers a versatile platform for the site-selective preparation of various fullerene multiadducts with a wide range of functional groups. The utility of these tetra-functionalized fullerenes is demonstrated by the successful application as electron-transport materials in perovskite solar cells.
View Article and Find Full Text PDFJ Phys Chem A
January 2025
Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain.
Both silicon and carbon are elements located in group 14 on the periodic table. Despite some similarities between these two elements, differences in reactivity are important, and whereas carbon is a central element in all known forms of life, silicon is barely found in biological systems. Here, we investigate the Diels-Alder cycloaddition reaction of cyclopentadiene (CP) and cyclopentasildiene (CP) with fullerenes C, Li@C, Si, and Li@Si using density functional theory methods.
View Article and Find Full Text PDFNanoscale Horiz
January 2025
Department of Chemical Engineering, Hampton University, Hampton, VA 23668, USA.
In this work, we use experimental and theoretical techniques to study the origin of the boosted hydrogen evolution reaction (HER) catalytic activity of two pyridyl-pyrrolidine functionalized C fullerenes. Notably, the mono-(pyridyl-pyrrolidine) penta-adduct of C has exhibited a remarkable HER catalytic activity as a metal-free catalyst, delivering an overpotential () of 75 mV RHE and a very low onset potential of -45 mV RHE. This work addresses fundamental questions about how functionalization on C changes the electron density on fullerene cages for high-performance HER electrocatalysis.
View Article and Find Full Text PDFJ Med Virol
February 2025
Department of Chemistry, Assam University, Silchar, India.
The biological applications of noncationic porphyrin-fullerene (P-F) dyads as anti-HIV agents have been limited despite the established use of several cationic P-F dyads as anti-cancer photodynamic therapy (PDT) agents. This article explores the potential of amphiphilic non-cationic porphyrin-fullerene dyads as HIV-1 inhibitors under both PDT (light-treated) and non-PDT (dark) conditions. The amphiphilic P-F dyads, PBC and PBC, demonstrated enhanced efficacy in inhibiting the entry and production of HIV-1 (subtypes B and C).
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