Abstract
Herein, silver-based metal-organic framework (AgMOF) and its graphene oxide (GO)-decorated nanocomposite (GO-AgMOF) are proposed for use in emerging biomedical applications. The nanocomposites are characterized, and hence, in vitro apoptotic and antibacterial features of AgMOF and GO-AgMOF nanomaterials were investigated. An MTT cytocompatibility assay indicates that these nanomaterials have dose-dependent toxicity in contact with SW480, colon adenocarcinoma cells. In addition, the cell death mechanism was explored by analyzing flow cytometry and caspase activity. Furthermore, the expressions of pro-apoptotic and anti-apoptotic genes were investigated using quantitative polymerase chain reaction (qPCR). Comparing the control group with the groups treated by the nanomaterials indicates up-regulation of the BAX/BCl2 ratio. We also measured the minimum inhibitory concentration (MIC) and minimum bacterial concentration (MBC) of these nanomaterials acting on S. mutans and S. aureus, which indicates excellent antibacterial properties. Showing inhibition effect on the viability of cancerous cells through apoptosis and antibacterial effects simultaneously, AgMOF and GO-AgMOF can be regarded as potential therapeutics for cancer.
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