Synthesis of antibacterial and magnetic nanocomposites by decorating graphene oxide surface with metal nanoparticles

Moosavi, Razieh; Ramanathan, Sahana; Lee, Yeong Yuh; Ling, Karen Chong Siew; Afkhami, Abbas; Archunan, ‪Govindaraju; Gulyás, Balázs; Kakran, Mitali; Selvan, Subramanian Tamil

doi:10.1039/c5ra15578a

Cited by 40 publications

(37 citation statements)

References 56 publications

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“…Depending on the composition, the hybrids were more effective against Gram positive or Gram negative bacteria, and the optimal performance was found at 7 wt% Ag and 15 wt% ZnO. Further, multifunctional nanocomposites of GO incorporating both Ag and Fe 2 O 3 nanoparticles were prepared and characterized [100]. The MIC values against E. coli and S. aureus were 0.025 and 0.05 mg/mL, respectively These composites display both antibacterial and magnetic properties, and can be harvested with a magnet.…”

Section: Graphenementioning

confidence: 99%

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Díez‐Pascual

2020

IJMS

104

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Bacterial infections constitute a severe problem in various areas of everyday life, causing pain and death, and adding enormous costs to healthcare worldwide. Besides, they cause important concerns in other industries, such as cloth, food packaging, and biomedicine, among others. Despite the intensive efforts of academics and researchers, there is lack of a general solutions to restrict bacterial growth. Among the various approaches, the use of antibacterial nanomaterials is a very promising way to fight the microorganisms due to their high specific surface area and intrinsic or chemically incorporated antibacterial action. Graphene, a 2D carbon-based ultra-thin biocompatible nanomaterial with excellent mechanical, thermal, and electrical properties, and its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO), are highly suitable candidates for restricting microbial infections. However, the mechanisms of antimicrobial action, their cytotoxicity, and other issues remain unclear. This mini-review provides select examples on the leading advances in the development of antimicrobial nanocomposites incorporating inorganic nanoparticles and graphene or its derivatives, with the aim of providing a better understanding of the antibacterial properties of graphene-based nanomaterials.

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Section: Graphenementioning

confidence: 99%

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Díez‐Pascual

2020

IJMS

104

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“…By growing Ag NPs on the surface of GO, several groups using different approaches have synthesized GO-Ag NP and rGO-Ag NP nanocomposites with significantly improved antibacterial activities when compared to GO and Ag NPs taken separately. [123][124][125]128,131,134,137,147,172,[177][178][179][180][181][182][183][184][185][186][187] The enhanced antimicrobial activity of GO-Ag NP nanocomposites is attributed to the presence of Ag NPs. Additionally, the high concentration of oxygenated groups confers on GO-Ag NPs sheets the versatility to bind to solid surfaces via covalent and non-covalent interactions, thus providing multiple opportunities to develop multifunctional materials with antimicrobial activity.…”

Section: Other Modified Graphene Matricesmentioning

confidence: 99%

“…The use of magnetic antibacterial graphene nanocomposites to clean pathogens in water has been proposed. [169][170][171][172] The successful synthesis of Fe3O4 modified GO using a solvothermal method was proposed by Shen and co-workers for the efficient (93%) removal of E. coli, whereas it was only 55% when using Fe3O4 NPs (Fig. 11).…”

Section: Graphene/titanium Oxide Nanoparticlesmentioning

confidence: 99%

Antibacterial activity of graphene-based materials

2016

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“…Moreover, these nanosheets can damage the outer and inner membranes of bacteria and promote an interaction between bacteria and AgNPs . The ROS stress, entrapment effects and photothermal effects produced by graphene and its derivatives also contribute to the antibacterial performance of the composites …”

Section: Antibacterial Activity Of Composite Materials Based On Graphmentioning

confidence: 99%

The Antibacterial Applications of Graphene and Its Derivatives

Shi

Chen

Teng

et al. 2016

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Graphene materials have unique structures and outstanding thermal, optical, mechanical and electronic properties. In the last decade, these materials have attracted substantial interest in the field of nanomaterials, with applications ranging from biosensors to biomedicine. Among these applications, great advances have been made in the field of antibacterial agents. Here, recent advancements in the use of graphene and its derivatives as antibacterial agents are reviewed. Graphene is used in three forms: the pristine form; mixed with other antibacterial agents, such as Ag and chitosan; or with a base material, such as poly (N-vinylcarbazole) (PVK) and poly (lactic acid) (PLA). The main mechanisms proposed to explain the antibacterial behaviors of graphene and its derivatives are the membrane stress hypothesis, the oxidative stress hypothesis, the entrapment hypothesis, the electron transfer hypothesis and the photothermal hypothesis. This review describes contributions to improving these promising materials for antibacterial applications.

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Synthesis of antibacterial and magnetic nanocomposites by decorating graphene oxide surface with metal nanoparticles

Abstract: Simple method for preparation of Ag NPs and GO + IO + Ag nanocomposites using cinnamon extract developed. The nanocomposites developed are magnetic and as effective as Ag NPs against bacteria and are cheaper due to less amount of Ag.

Cited by 40 publications

References 56 publications

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Antibacterial Action of Nanoparticle Loaded Nanocomposites Based on Graphene and Its Derivatives: A Mini-Review

Antibacterial activity of graphene-based materials

The Antibacterial Applications of Graphene and Its Derivatives

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