Reduced graphene oxide/silver nanohybrid as a multifunctional material for antibacterial, anticancer, and SERS applications

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

“…28 Furthermore, RGO-based metal oxide nanocomposites have garnered much attention as antimicrobials in the last few years. [29][30][31][32] Therefore, this study aims to synthesize and characterize the RGO-AgO, RGO-ZnO and RGO-NiO nanocomposites, in addition to evaluate their antimicrobial and antibiolm activities and the effect of UV illumination, as well as to determine the exact antimicrobial reaction mechanism. The synthesized nanocomposites may nd potential applications in industries and medical surgeries as effective materials to eliminate or reduce the dangerous and fetal effects produced by the pathogenic microbes.…”

Engineering the surface of titanium to improve its bioactivity and antibacterial activity through a multi-functional coating approach

“…Moreover, the Ag + ions, AgNPs, GO and rGO can stimulate the generation of reactive oxygen species (ROS), which results in oxidative stress on the membrane with consequent bacterial cell death. 42,43 The BG-AgrGO/PCL composite coating exhibits a relatively lower antibacterial performance when compared to the AgBG-GO/PCL composite coating. This is due to the slow release of Ag + ions in the AgrGO nanocomposite that persist in a stable structure for a fairly long duration of time to produce ROS for bacterial inactivation.…”

Eco‐Friendly Transition‐Metal‐Ion‐Doped rGO Nanocomposites with Enhanced Photocatalytic Activities

“…As previously reported, the cytotoxic effects of rGO nanocomposites were evaluated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and neutral red uptake (NRU) assays. [52,53] Briefly, 2 Í 10 3 HaCaT cells per well were seeded in 96-well cell culture plates and exposed to TM@rGO or rGO for 24 h. After washing with phosphatebuffered saline (PBS, Gibco, USA) and exposure to rGO nanocomposites, an MTT solution (Sigma-Aldrich, USA) was added to each well at a final concentration of 0.5 mg mL −1 and the cells were incubated for 1 h. The formazan crystals formed during the process were dissolved in 50% dimethyl sulfoxide (DMSO) (Sigma-Aldrich, USA) and 50% methanol (Merck, USA). For the NRU assays, NP-exposed cells were washed twice with PBS and incubated for 3 h in OPTI-MEMI (Gibco, USA), which contained 40 ng mL −1 of neutral red reagent (Sigma-Aldrich, USA).…”