• 文献标题:   Dispersion enhancing effect of sonochemically functionalized graphene oxide for catalysing antioxidant efficacy of curcumin
  • 文献类型:   Article
  • 作  者:   MAKTEDAR SS, MALIK P, AVASHTHI G, SINGH M
  • 作者关键词:   functionalized graphene oxide, curcumin, antioxidant activity, emulsion
  • 出版物名称:   ULTRASONICS SONOCHEMISTRY
  • ISSN:   1350-4177 EI 1873-2828
  • 通讯作者地址:   Cent Univ Gujarat
  • 被引频次:   15
  • DOI:   10.1016/j.ultsonch.2017.04.006
  • 出版年:   2017

▎ 摘  要

The non-hazardous sonochemical approach has been developed for the functionalization of graphene oxide (GrO) with 5-Aminoindazole (5-AIND). The formation of f-(5-AIND) GrO is confirmed with C-13 solid state NMR, HRXPS, XRD, Raman, TGA, DSC, FTIR etc. The > 80% cell viabilities on MCF-7 and Vero cell lines have confirmed the high cytocompatibility of f-(5-AIND) GrO. Additionally, the morphological impact on Vero cell line has evidently confirmed the biocompatibility of f-(5-AIND) GrO. As compared to GrO, the f-(5-AIND) GrO has demonstrated an enhanced antioxidant efficacy of 69.4-72%, evaluated with 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical assay. With a similar objective (0.01-0.05) mL peanut oil based curcumin micro and nanoemulsions have been prepared using ethanol and glycerol as co-solvent and co-surfactant respectively. The prepared emulsions are subsequently characterised with respect to morphological and physicochemical parameters via density, surface tension, viscosity, friccohesity measurement and DLS analysis. Henceforth, with an expectation to achieve higher dispersion, an ethanolic dispersion of f-(5-AIND) GrO has been mixed with curcumin carrying emulsions in 1:1. Notably, the radical scavenging activities (RSA) of the combined formulations are significantly enhanced to an extent of 26.6%.