Electroless Deposition of Silver Nanoparticles on Graphene Oxide Surface and Its Applications for the Detection of Hydrogen Peroxide

2014 ◽  
Vol 26 (11) ◽  
pp. 2513-2519 ◽  
Author(s):  
Jun Zhu ◽  
KeunSoo Kim ◽  
Zhenxian Liu ◽  
Huan Feng ◽  
Shifeng Hou
Keyword(s):  
Hydrogen Peroxide ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Electroless Deposition ◽  
Oxide Surface

scholarly journals Correction: Synthesis of DNA-guided silver nanoparticles on a graphene oxide surface: enhancing the antibacterial effect and the wound healing activity

RSC Advances ◽  
2019 ◽  
Vol 9 (67) ◽  
pp. 39434-39434
Author(s):  
Chunyi Tong ◽  
Wei Zou ◽  
Weimin Ning ◽  
Jialong Fan ◽  
Li Li ◽  
...  
Keyword(s):  
Wound Healing ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Antibacterial Effect ◽  
Oxide Surface ◽  
Wound Healing Activity

Correction for ‘Synthesis of DNA-guided silver nanoparticles on a graphene oxide surface: enhancing the antibacterial effect and the wound healing activity’ by Chunyi Tong et al., RSC Adv., 2018, 8, 28238–28248.

scholarly journals Enhanced antibacterial activity through silver nanoparticles deposited onto carboxylated graphene oxide surface

2021 ◽  
Author(s):  
Arturo Barjola ◽  
María Ángeles Tormo ◽  
Oscar Sahuquillo ◽  
Patricia Bernabé ◽  
José Manuel Pérez ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Graphene Oxide ◽  
Biofilm Formation ◽  
Material Surface ◽  
Oxide Surface ◽  
Main Role ◽  
Carboxylic Groups ◽  
Average Size

Abstract The strong bactericidal action of silver nanoparticles (AgNPs) is usually limited for their degree of aggregation. Deposition of AgNPs onto a graphene oxide (GO) surface to generate GO-Ag hybrids has been shown to be an effective method to control these aggregation problems. In this sense, a novel carboxylated graphene oxide-silver nanoparticle (GOCOOH-Ag) material has been synthesized and their antibacterial and biofilm formation inhibition have been studied.AgNPs decorating the GOCOOH surface achieved an average size of 6.74±0.25 nm, which was smaller than those of AgNPs deposited onto the GO surface. In addition, better distribution of AgNPs was obtained using carboxylated material. It is important to highlight the main role of the carboxylic groups in the nucleation and growth of the AgNPs that decorate the GO-based material surface.In vitro antibacterial activity and antibiofilm-forming action were tested against Gram-positive (Staphylococcus aureus and Staphylococcus epidermidis) and Gram-negative bacteria (Pseudomonas aeruginosa and Escherichia coli). Both GO-Ag and GOCOOH-Ag reduced the bacterial growth, analyzed by time-kill curves. However, the minimum inhibitory concentration and the minimum bactericidal concentration of GOCOOH-Ag were lower than those of GO-Ag for all strains studied, indicating that GOCOOH-Ag has better antibacterial activity. In addition, both nanomaterials prevent biofilm-formation, with a higher reduction of biofilm mass and cell viability in the presence of GOCOOH-Ag. The carboxylation functionalization in GO-based materials can be applied to improve the bactericidal and antibiofilm-forming action of the AgNPs.

Electrocatalytic Reduction of Hydrogen Peroxide and Its Non-Enzymatic Electrochemical Detection Using Silver Nanoparticles Anchored on Reduced Graphene Oxide

2019 ◽  
Vol 19 (11) ◽  
pp. 7054-7063 ◽  
Author(s):  
Nurul Izrini Ikhsan ◽  
Perumal Rameshkumar ◽  
Norazriena Yusoff ◽  
Nay Ming Huang
Keyword(s):  
Hydrogen Peroxide ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Average Particle Size ◽  
Slight Modification ◽  
Cyclic Voltammograms ◽  
Average Particle ◽  
Reduced Graphene

Silver-reduced graphene oxide (Ag-rGO) nanohybrid was synthesized by applying a slight modification to the Turkevich method using trisodium citrate as a reducing and stabilizing agent to catalyze the non-enzymatic electrochemical detection of hydrogen peroxide (H2O2). Spherical silver nanoparticles (AgNPs) with an average particle size of 2.2 nm surfaced on reduced graphene oxide (rGO) sheets. Cyclic voltammograms (CV) obtained from glassy carbon (GC) electrode coated with Ag-rGO nanohybrid (4 mM) exhibited a peak at an overpotential of -0.52 V, with a larger faradaic current for the reduction of H2O2. Using the modified electrode for the linear sweep voltammetry (LSV) detection of H2O2, the detection limit and sensitivity were determined to be 4.8 μM (S/N ═ 3) and 0.0262 μA μM−1, respectively. The sensor appeared selective and stable towards H2O2 in the presence of possible interference, and it also demonstrated good recoveries of H2O2 concentration in real water samples.

A sustainable approach for graphene–oxide surface decoration using Oxalis corniculata leaf extract–derived silver nanoparticles: their antibacterial activities and electrochemical sensing

2020 ◽  
Vol 49 (25) ◽  
pp. 8625-8635
Author(s):  
Varsha Jakhar ◽  
D. K. Sharma
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Leaf Extract ◽  
Antibacterial Activities ◽  
Electrochemical Sensing ◽  
Oxide Surface ◽  
Surface Decoration

Novel OCLE-AgNPΔGO nanocomposites were synthesized using green OCLE-AgNPs and further employed for antibacterial activities and electrochemical sensing applicability.

scholarly journals Synthesis of DNA-guided silver nanoparticles on a graphene oxide surface: enhancing the antibacterial effect and the wound healing activity

RSC Advances ◽  
2018 ◽  
Vol 8 (49) ◽  
pp. 28238-28248 ◽  
Author(s):  
Chunyi Tong ◽  
Wei Zou ◽  
Weimin Ning ◽  
Jialong Fan ◽  
Li Li ◽  
...  
Keyword(s):  
Wound Healing ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Antibacterial Effect ◽  
Oxide Surface ◽  
Single Stranded Dna ◽  
Wound Healing Activity

A simple two-step approach to synthesize a new nanocomposite by directly loading single-stranded DNA (ssDNA)-guided silver nanoparticles (AgNPs) on graphene oxide (ssDNA-AgNPs@GO) is developed.

Sign in / Sign up

Export Citation Format

Share Document