Easily separated silver nanoparticle-decorated magnetic graphene oxide: Synthesis and high antibacterial activity

Zhang, Huaizhi; Zhang, Chang; Zeng, Guangming; Gong, Ji-Lai; Ou, Xiaoming; Huan, Shuangyan

doi:10.1016/j.jcis.2016.03.015

Cited by 66 publications

(29 citation statements)

References 47 publications

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“…In addition, the loading of magnetic nanoparticles onto Ag–graphene nanocomposites has gained wide attention as well, owing to their exception properties of magnetic separation and bacterial inactivation . It has been reported the easy separation and high antibacterial activity of AgNP‐decorated magnetic GO (MGO‐Ag) against E. coli and S. aureus . Therefore, it is necessary to explore additional improvement approaches and technologies to promote the practical application of Ag–graphene based nanocomposites as antimicrobial agents.…”

Section: Antimicrobial Agentsmentioning

confidence: 99%

Advancement of Ag–Graphene Based Nanocomposites: An Overview of Synthesis and Its Applications

Zeng

Chen

et al. 2018

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121

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Graphene has been employed as an excellent support for metal nanomaterials because of its unique structural and physicochemical properties. Silver nanoparticles (AgNPs) with exceptional properties have received considerable attention in various fields; however, particle aggregation limits its application. Therefore, the combination of AgNPs and graphene based nanocomposites (Ag-graphene based nanocomposites) has been widely explored to improve their properties and applications. Excitingly, enhanced antimicrobial, catalytic, and surface enhanced Raman scattering properties are obtained after their combination. In order to have a comprehensive knowledge of these nanocomposites, this Review highlights the chemical and biological synthesis of Ag-graphene nanocomposites. In particular, their applications as antimicrobial agents, catalysts, and sensors in biomedicine, agricultural protection, and environmental remediation and detection are covered. Meanwhile, the factors that influence the synthesis and applications are also briefly discussed. Furthermore, several important issues on the challenges and new directions are also provided for further development of these nanocomposites.

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Section: Antimicrobial Agentsmentioning

confidence: 99%

Advancement of Ag–Graphene Based Nanocomposites: An Overview of Synthesis and Its Applications

Zeng

Chen

et al. 2018

Small

121

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“…AgNPs deposited onto mesoporous composite particles of carbon inlaid with MNPs (Ag-Fe3O4@carbon) with a novel bowl structure show efficient antibacterial activities to E. coli and S. aureus, as well as high catalytic activity to the reduction of 4-NP by NaBH4 [224]. AgNP-decorated magnetic GO (MGO-Ag) exhibits excellent antibacterial activity against E. coli and S. aureus [225]. Ag-CoFe2O4-GO exhibits excellent antibacterial activity against E. coli and S. aureus compared with CoFe2O4, Ag-CoFe2O4, and CoFe2O4-GO composite.…”

Section: Wastewater and Surface Water Treatment 61 Magnetic Antimicmentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

303

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“…The synergistic antibacterial effect of GO-QAS was investigated using the plate count method as previously reported [ 37 ]. S. aureus and E. coli bacteria cells were treated with dispersions of 8 μg/mL GO, 81.3 μg/mL QAS, a mixture of 8 μg/mL GO and 81.3 μg/mLQAS, or 100 μg/mL GO-QAS.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of graphene oxide-quaternary ammonium nanocomposite with synergistic antibacterial activity to promote infected wound healing

Liu

Menglong

et al. 2018

Burns &Amp; Trauma

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BackgroundBacterial infection is one of the most common complications in burn, trauma, and chronic refractory wounds and is an impediment to healing. The frequent occurrence of antimicrobial-resistant bacteria due to irrational application of antibiotics increases treatment cost and mortality. Graphene oxide (GO) has been generally reported to possess high antimicrobial activity against a wide range of bacteria in vitro. In this study, a graphene oxide-quaternary ammonium salt (GO-QAS) nanocomposite was synthesized and thoroughly investigated for synergistic antibacterial activity, underlying antibacterial mechanisms and biocompatibility in vitro and in vivo.MethodsThe GO-QAS nanocomposite was synthesized through amidation reactions of carboxylic group end-capped QAS polymers with primary amine-decorated GO to achieve high QAS loading ratios on nanosheets. Next, we investigated the antibacterial activity and biocompatibility of GO-QAS in vitro and in vivo.ResultsGO-QAS exhibited synergistic antibacterial activity against bacteria through not only mechanical membrane perturbation, including wrapping, bacterial membrane insertion, and bacterial membrane perforation, but also oxidative stress induction. In addition, it was found that GO-QAS could eradicate multidrug-resistant bacteria more effectively than conventional antibiotics. The in vitro and in vivo toxicity tests indicated that GO-QAS did not exhibit obvious toxicity towards mammalian cells or organs at low concentrations. Notably, GO-QAS topically applied on infected wounds maintained highly efficient antibacterial activity and promoted infected wound healing in vivo.ConclusionsThe GO-QAS nanocomposite exhibits excellent synergistic antibacterial activity and good biocompatibility both in vitro and in vivo. The antibacterial mechanisms involve both mechanical membrane perturbation and oxidative stress induction. In addition, GO-QAS accelerated the healing process of infected wounds by promoting re-epithelialization and granulation tissue formation. Overall, the results indicated that the GO-QAS nanocomposite could be applied as a promising antimicrobial agent for infected wound management and antibacterial wound dressing synthesis.Electronic supplementary materialThe online version of this article (10.1186/s41038-018-0115-2) contains supplementary material, which is available to authorized users.

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Easily separated silver nanoparticle-decorated magnetic graphene oxide: Synthesis and high antibacterial activity

Cited by 66 publications

References 47 publications

Advancement of Ag–Graphene Based Nanocomposites: An Overview of Synthesis and Its Applications

Advancement of Ag–Graphene Based Nanocomposites: An Overview of Synthesis and Its Applications

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Synthesis of graphene oxide-quaternary ammonium nanocomposite with synergistic antibacterial activity to promote infected wound healing

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