Simple synthesis method of reduced graphene oxide/gold nanoparticle and its application in surface-enhanced Raman scattering

Wang, Wen-Shuo; He, Dawei; Duan, Jiahua; Su-Feng, Wang; Peng, Hongshang; Wu, Hongpeng; Fu, Ming; Wang, Yongsheng; Zhang, Xiqing

doi:10.1016/j.cplett.2013.07.037

Cited by 16 publications

(8 citation statements)

References 20 publications

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“…The hybridization of graphene with metal nanoparticles (copper [16], silver [17] and gold [12,18]) provides an improvement in the optical and electrical properties of this nanomaterial [14] leading to an enhancement in the Raman spectra of molecules deposited on these hybrid substrates [19][20][21][22][23]. Gold nanostructures are usually deposited and grown on graphene surface, although in some cases they are placed between layers.…”

Section: Introductionmentioning

confidence: 99%

Multilayer graphene–gold nanoparticle hybrid substrate for the SERS determination of metronidazole

Benítez–Martínez

López‐Lorente

Valcárcel

2015

Microchemical Journal

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Section: Introductionmentioning

confidence: 99%

Multilayer graphene–gold nanoparticle hybrid substrate for the SERS determination of metronidazole

Benítez–Martínez

López‐Lorente

Valcárcel

2015

Microchemical Journal

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“…Therefore, it is highly expected that extraordinary outputs can be achieved using the fabricated graphene–AuNPs composites in numerous applications. In this regard, AuNPs/reduced graphene oxide (rGO) composites comply by offering around 2.3 times superior electrocatalytic current density [ 41 ], and stronger Raman signals from Rhodamine 6G (R6G) absorbed on the nano-composites than individual pure AuNPs [ 42 ]. In addition, the presence of Au and Ag nanostructures (AgNS) on graphene increases the SERS by factors of about 45 and 150, respectively, than graphene alone [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Graphene–Gold Nanoparticles Hybrid—Synthesis, Functionalization, and Application in a Electrochemical and Surface-Enhanced Raman Scattering Biosensor

et al. 2016

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Graphene is a single-atom-thick two-dimensional carbon nanosheet with outstanding chemical, electrical, material, optical, and physical properties due to its large surface area, high electron mobility, thermal conductivity, and stability. These extraordinary features of graphene make it a key component for different applications in the biosensing and imaging arena. However, the use of graphene alone is correlated with certain limitations, such as irreversible self-agglomerations, less colloidal stability, poor reliability/repeatability, and non-specificity. The addition of gold nanostructures (AuNS) with graphene produces the graphene–AuNS hybrid nanocomposite which minimizes the limitations as well as providing additional synergistic properties, that is, higher effective surface area, catalytic activity, electrical conductivity, water solubility, and biocompatibility. This review focuses on the fundamental features of graphene, the multidimensional synthesis, and multipurpose applications of graphene–Au nanocomposites. The paper highlights the graphene–gold nanoparticle (AuNP) as the platform substrate for the fabrication of electrochemical and surface-enhanced Raman scattering (SERS)-based biosensors in diverse applications as well as SERS-directed bio-imaging, which is considered as an emerging sector for monitoring stem cell differentiation, and detection and treatment of cancer.

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“…Graphene based nanocomposites of metallic nanoparticles (NPs) combining the properties of both the components in synergistic manner have been used for various purposes, e.g., for chemical and biological sensors, as energy storage materials and effective catalysts [ 7 , 8 , 9 , 10 ]. Moreover, nanocomposites containing graphene- with metal and surface bound metal oxide NPs have been extensively applied for various applications, such as, thermal interface materials, catalysts, adsorbent materials [ 11 , 12 , 13 , 14 , 15 , 16 ], surface-enhanced Raman scattering (SERS) substrates and so on [ 17 , 18 ]. SERS enhances the signal intensity by orders of magnitudes, and has been potentially exploited for the ultra-sensitive detection of various analytes, including a number of chemical and biological molecules [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Pulicaria glutinosa Extract: A Toolbox to Synthesize Highly Reduced Graphene Oxide-Silver Nanocomposites

Al-Marri

Khan

et al. 2015

IJMS

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A green, one-step approach for the preparation of graphene/Ag nanocomposites (PE-HRG-Ag) via simultaneous reduction of both graphene oxide (GRO) and silver ions using Pulicaria glutinosa plant extract (PE) as reducing agent is reported. The plant extract functionalizes the surfaces of highly reduced graphene oxide (HRG) which helps in conjugating the Ag NPs to HRG. Increasing amounts of Ag precursor enhanced the density of Ag nanoparticles (NPs) on HRG. The preparation of PE-HRG-Ag nanocomposite is monitored by using ultraviolet–visible (UV-Vis) spectroscopy, powder X-ray diffraction (XRD), and energy dispersive X-ray (EDX). The as-prepared PE-HRG-Ag nanocomposities display excellent surface-enhanced Raman scattering (SERS) activity, and significantly increased the intensities of the Raman signal of graphene.

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Simple synthesis method of reduced graphene oxide/gold nanoparticle and its application in surface-enhanced Raman scattering

Cited by 16 publications

References 20 publications

Multilayer graphene–gold nanoparticle hybrid substrate for the SERS determination of metronidazole

Multilayer graphene–gold nanoparticle hybrid substrate for the SERS determination of metronidazole

Graphene–Gold Nanoparticles Hybrid—Synthesis, Functionalization, and Application in a Electrochemical and Surface-Enhanced Raman Scattering Biosensor

Pulicaria glutinosa Extract: A Toolbox to Synthesize Highly Reduced Graphene Oxide-Silver Nanocomposites

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