Interfacial Engineering of Bimetallic Ag/Pt Nanoparticles on Reduced Graphene Oxide Matrix for Enhanced Antimicrobial Activity

Zhang, Mei; Zhao, Yanhua; Li, Yan; Peltier, Raoul; Wang, Hui; Yao, Xi; Cui, Yali; Chen, Xianfeng; Sun, Hongyan; Wang, Zuankai

doi:10.1021/acsami.6b01396

Cited by 89 publications

(51 citation statements)

References 64 publications

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“…The Pt/P-rGO as catalyst with high electron catalytic activity was obtained under 100 W. The result is vital for the practical production and application of graphene-Pt and other graphene-metal composites. In addition, Ag/Pt NPs deposited on graphene oxide exhibits superior antimicrobial activity, 38 which is another potential application by plasma treated Pt NPs.…”

Section: Discussionmentioning

confidence: 99%

The tunable plasma synthesis of Pt-reduced graphene oxide nanocomposites

Fang²,

Wang

2017

AIP Advances

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Herein, we have developed Pt-plasma reduced graphene oxide (Pt/P-rGO) catalysts displaying high overpotentials for methanol oxidation reaction (MOR) through facile and tunable plasma treatments. We provide insight into the improved performance of these catalysts by combining electrochemical measurements with microscopic and spectroscopic characterization techniques. The analysis results showed that the Pt nanoparticles (NPs) were successfully deposited on P-rGO. The deposition and uniformity of Pt NPs were influenced by tuning the discharge power of the plasma. The catalytic performance towards the methanol oxidation reaction is investigated. The Pt/P-rGO NPs composites under 100 W show the best electrocatalytic activity. These results were vital to the further application of graphene-based metal nanocomposites synthesized by plasma technology.

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Section: Discussionmentioning

confidence: 99%

The tunable plasma synthesis of Pt-reduced graphene oxide nanocomposites

Fang²,

Wang

2017

AIP Advances

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“…GO‐AgNPs hybrids presented better stability and antibacterial performance than AgNPs . Hybrid nanocomposites formed by rGO decorated with Pt/AgNPs showed strong activity against E. coli , which was ascribed to bacterial trapping by rGO and Ag + release . Other antimicrobial materials from GBM combinations include an rGO–ZnO composite applied to poly(3‐hydroxybutyrate‐ co ‐3‐hydroxyvalerate, and rGO functionalized with [2‐(methacryloyloxy) ethyl] trimethylammonium chloride applied to poly(ethylene‐co‐vinyl alcohol) …”

Section: Inorganic Antimicrobial Nanostructuresmentioning

confidence: 99%

Nanostructured Antimicrobials in Food Packaging—Recent Advances

Azeredo

Otoni

Corrêa

et al. 2019

Biotechnology Journal

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Active food packaging systems promote better food quality and/or stability, such as by releasing antimicrobial agents into food. Advantages of adding antimicrobials to the packaging material instead of into the bulk food include controlled diffusion, reduced antimicrobial contents, and improved cost effectiveness. Nanostructured antimicrobials are especially effective due to their high specific surface area. The present review is focused on recent advances and findings on the main nanostructured antimicrobial packaging systems for food packaging purposes. Several kinds of nanostructures, including both inorganic particles and organic structures, have been proven effective antimicrobials by different mechanisms of action and with different application scopes. Moreover, there are systems containing nanocarriers to protect antimicrobials and deliver them in a controlled fashion. On the other hand, scientific data about migration of nanostructures onto food and their toxicity are still limited, requiring special attention from researchers and regulation sectors.

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“…Co‐doped cerium oxide nanoparticles (1 mg mL −1 ) synthesized by the hydrothermal method show almost similar inactivity to kill E. coli , S. aureus , Bacillus cereus and Salmonella typhi . AgPt NPs are formed on reduced graphene oxide for antibacterial applications using E. coli as a target strain …”

Section: Introductionmentioning

confidence: 99%

One pot green synthesis of Pt, Co and Pt@Co core‐shell nanoparticles using Sechium edule

Chelli

Golder

2018

J of Chemical Tech & Biotech

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BACKGROUND: Common approaches for the synthesis of metallic nanostructured materials require the use of fine chemicals and energy-intensive processes. This work reports a simple eco-friendly (green) method to engineer the structure of cobalt (Co), platinum (Pt) and PtCo core-shell nanoparticles using plant-based analytes present in the extract of Sechium edule, the fruit of a perennial climber plant. RESULTS: Ascorbic acid (294 mg kg −1 dry fruit) was found to be the primary analyte and it acted for both metal ion reduction and nanoparticle destabilization forming a conjugate with the carboxylate group. The sharp rise in negative zeta-potential with the rise in pH from a highly acidic medium resulted from a strong destabilization tendency of Pt and Co nanostructures over a wide pH range. The size and colloidal stability, morphology and crystal structure were confirmed with the support of dynamic light scattering, transmission electron microscopy and X-ray diffraction. Co nanoprisms (47.3 nm), Pt nanospheres (28.6 nm) and PtCo core-shell (13.2-26.4 nm) nanoparticles were formed with a polydispersity index of 0.18-0.38. The synergistic effects such as ligand interaction between core and shell and the geometric effect improved the antibacterial activity against Bacillus subtilis and Escherichia coli bacteria in comparison to Pt nanospheres and Co nanoprisms, and these results were comparable with ciprofloxacin and cefprozil as the antibiotic controls. CONCLUSION: Plant analytes served as the electron donors for the formation of Pt and Co nanostructures and also stabilized the particles growth to tailor their structures for an improved antibacterial functionality.

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Interfacial Engineering of Bimetallic Ag/Pt Nanoparticles on Reduced Graphene Oxide Matrix for Enhanced Antimicrobial Activity

Cited by 89 publications

References 64 publications

The tunable plasma synthesis of Pt-reduced graphene oxide nanocomposites

The tunable plasma synthesis of Pt-reduced graphene oxide nanocomposites

Nanostructured Antimicrobials in Food Packaging—Recent Advances

One pot green synthesis of Pt, Co and Pt@Co core‐shell nanoparticles using Sechium edule

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