• 文献标题:   Adsorption of Metformin on Graphene Nanoribbons and Application in Treatment of Oral Cancer Using Photothermal Energy
  • 文献类型:   Article, Early Access
  • 作  者:   PATHAN N, SHENDE P
  • 作者关键词:   cancer, drug repurposing, graphene nanoribbon, metformin, photothermal energy
  • 出版物名称:   PARTICLE PARTICLE SYSTEMS CHARACTERIZATION
  • ISSN:   0934-0866 EI 1521-4117
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1002/ppsc.202300017 EA MAY 2023
  • 出版年:   2023

▎ 摘  要

Graphene nanoribbons are thin sheets of graphene showing exclusive characteristics such as better drug-loading capacity, adsorption on mammalian cells, greater surface area, and light-absorbing ability. The current research work is to develop metformin-adsorbed carboxyl-functionalized oxidized graphene nanoribbons and utilize drug repurposing for the treatment of oral cancer by activating photo-thermal radiation therapy. The nanoribbons are formulated by Hummer's method and evaluated for several characterization parameters like ATR- Fourier Transform Infrared (FTIR), Differential scanning calorimetry (DSC), topology, in vitro efficacy, ex vivo and in vitro cell line studies. The ATR-FTIR spectrum of formulated nanoribbons shows distinctive peak at 3370 cm(-1) (-N-H group) of metformin. The DSC specifies the incidence of steep endothermic crests at 235 degrees C (-C-NH3). The in vitro and ex vivo drug release studies show enhanced drug release in acidic pH (6.4) than physiological pH (7.4) with photothermal radiation. The in vitro cell line studies are processed via two-way ANOVA that exhibits 67.74 +/- 0.03% of % inhibition in presence of photothermal radiation. The study demonstrates higher inhibition of cancerous cells at lower concentration of drug and photothermal therapy in comparison to plain drug. The characteristic feature of graphene is used to develop targeted drug delivery system against the oral cancerous cells.