Synthesis of silver nanoparticles in an aqueous suspension of graphene oxide sheets and its antimicrobial activity

Das, Manash R.; Sarma, Rupak K.; Saikia, Ratul; Kale, Vinayak S.; Shelke, Manjusha V.; Sengupta, Pinaki

doi:10.1016/j.colsurfb.2010.10.033

Cited by 439 publications

(261 citation statements)

References 52 publications

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“…Extensive efforts have been devoted to develop rapid and sensitive methods for the detection, identification of the pathogen strain at hand and for destruction or inhibition of pathogens and their actions [1], [2], [3] and [4]. Despite considerable recent progress in the understanding of the mechanisms underlying bacterial infections, and in the development of nanostructured materials displaying antibacterial properties and activity against biofilms [1], [5], [6], [7] and [8], the quest to design and fabricate new antibacterial nanostructures remains a high research priority. Nanoparticles have been considered as affective solution to fight against bacterial infections [4], [9], [10], [11], [12], [13], [14] and [15].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of menthol modified nanodiamond particles

Turcheniuk

Raks

Issa

et al. 2015

Diamond and Related Materials

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Advances in nanotechnology have seen the development of several microbiocidal nanoparticles displaying activity against biofilms. These applications benefit from one or more combinations of the nanoparticle properties. Nanoparticles may indeed concentrate drugs on their surface resulting in polyvalent effects and improved efficacy to fight against bacteria. Nanodiamonds (NDs) are among the most promising new materials for biomedical applications. We elucidate in this paper the effect of menthol modified nanodiamond (ND-menthol) particles on bacterial viability against Grampositive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. We show that while ND-menthol particles are non-toxic to both pathogens, they show significant antibiofilm activity. The presence of ND-menthol particles reduces biofilm formation more efficiently than free menthol, unmodified oxidized NDs and ampicillin, a commonly used antibiotic. Our findings might be thus a step forward towards the development of alternative non antibiotic based strategies targeting bacterial infections.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of menthol modified nanodiamond particles

Turcheniuk

Raks

Issa

et al. 2015

Diamond and Related Materials

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“…Dispersion of GO showed negligible antimicrobial activity against the microorganism and GO-Ag compound showed an increased antibacterial activity. The activity for antibiofilm was also observed on Pseudomonas aeruginosa, on a stainless steel surface showing 100% inhibition rate when exposed to the GO-Ag nanocomposite [87,88]. Bao et al [89] had a similar result using a disc diffusion test and evaluated the antibacterial property of GO by observing an inhibition zone surrounding the GO disc showing toxicity of bacteria against Staphylococcus aureus and Escherichia.coli.…”

Section: Substrates For Antibacterial Effectsmentioning

confidence: 91%

Graphene and graphene oxide as nanomaterials for medicine and biology application

et al. 2018

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Graphene-and graphene oxide-based nanomaterials have gained broad interests in research because of their unique physiochemical properties. The 2D allotropic structure allows it to be used in various biological fields. The biomedical applications of graphene and its composite include its use in gene and small molecular drug delivery. It is further used for biofunctionalization of protein, in anticancer therapy, as an antimicrobial agent for bone and teeth implantation. The biocompatibility of the newly synthesized nanomaterials allows its substantial use in medicine and biology. The current review summarizes the chemical structure and biological application of graphene in various fields.

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“…Graphene oxide was synthesized from graphite powder by a Hummers method [23] and the detailed experimental conditions are reported earlier [24]. The HO/GO nanocomposites were prepared by mixing aqueous solution of GO into aqueous solution of HO at different ratios of GO (20,30 and 40wt %) to form the HO/GO nanocomposites, then the mixture was heated at 100 °C for 12 h. The resulting black precipitate was separated from the aqueous supernatant by centrifugation 2000 rpm for 15 min.…”

Section: Preparation Of Hafnium Oxide/graphene Oxide (Ho)/(go) Nanocomentioning

confidence: 99%

Hafnium Oxide/Graphene Oxide Nanocomposites as Efficient Supercapacitor Electrodes

Jayavel¹,

Ramalakshmi²,

Antony³

et al. 2018

JNST

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This paper reports on the preparation of graphene oxide (GO) modified with hafnium oxide (HO) nanoparticles composites by a simple mixing and their use as efficient electrode in electrochemical supercapacitors. The technique relies on simple mixing the aqueous solutions of hafnium oxide (HO) nanoparticles and graphene oxide (GO) at different ratios of GO content (20, 30 and 40 wt%). The morphological studies, chemical composition and electrochemical behavior of the resulting HO/GO nanocomposites were investigated by using UV/vis spectrometry, X-Ray Diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and electrochemical respectively. The electrochemical performance, including the capacitive behavior of the HO/GO nanocomposites were investigated by cyclic voltammetry and galvanostatic charge-discharge curves. The HO/GO nanocomposites (40 wt%) ratio exhibited the best performance with a specific capacitance of 268 Fg -1 at a scan rate 5 mVs -1 in 1 M H2SO4 and it shows excellent long-term cycle stability.

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Synthesis of silver nanoparticles in an aqueous suspension of graphene oxide sheets and its antimicrobial activity

Cited by 439 publications

References 52 publications

Antimicrobial activity of menthol modified nanodiamond particles

Antimicrobial activity of menthol modified nanodiamond particles

Graphene and graphene oxide as nanomaterials for medicine and biology application

Hafnium Oxide/Graphene Oxide Nanocomposites as Efficient Supercapacitor Electrodes

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