Simple method for electrochemical preparation of silver dendrites used as active and stable SERS substrate

Jing, Cuiyu; Fang, Yan

doi:10.1016/j.jcis.2007.05.041

Cited by 46 publications

(32 citation statements)

References 30 publications

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“…Curves a, b and c (corresponding to the particles shown on the right) show that the silver particles prepared from a longer t exhibit a stronger SERS signal, which correlates with the density of flake-built gaps. This is consistent with the results from flowerlike gold [23,24] and dendritic silver nanostructures [25] . …”

Section: Resultssupporting

confidence: 93%

Controllable synthesis of metal particles by a direct current electrochemical approach

Tang

Meng

2009

Sci. China Ser. E-Technol. Sci.

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Shapes of copper and silver particles were successfully controlled by using a very simple, effective direct-current electrochemical approach without introducing any additives or templates. A diverse range of shapes and also different inner structures were thus accessible. The products prepared at relatively high potentials have flowerlike morphologies and exhibit flakes as building blocks. The uniformly thick flakes intersect mutually, have smooth surfaces and outwardly wavy edges. The particle diameter and the flake density can be easily controlled by changing potential and/or deposition time. With a decrease of potential, the particles' shapes changed from flower to bud, to sphere and to octahedron. Surface plasmon resonance (SPR) properties of the supported metal particles were investigated by UV-Vis diffuse reflectance spectra (UV-Vis DRS) and surface enhanced Raman scattering (SERS). It was found that the copper octahedra exhibited three characteristic bands, and SERS effect increases with the number of flakes within individual particles. Based on the experimental results, the mechanism for direct-current electrochemical growth of metal nanostructures was discussed. metal particles, controlled synthesis, direct-current electrochemical growth, surface plasmon resonance

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Section: Resultssupporting

confidence: 93%

Controllable synthesis of metal particles by a direct current electrochemical approach

Tang

Meng

2009

Sci. China Ser. E-Technol. Sci.

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“…The Ag dendrites fabrication without any template, surfactant or stabiliser by electrodeposition is getting more and more popular. Jing et al [77] reported electrochemical preparation of Ag dendrites with long central backbone on aluminium slice, which could be used as active and stable SERS substrate. Investigations revealed that Ag source concentration, electrolyte, applied potential or current density and deposition time all played significant roles in Ag dendrites formation.…”

Section: Ag Dendrites Fabrication Via Electrochemical Methodsmentioning

confidence: 99%

Insight into the fabrication and perspective of dendritic Ag nanostructures

Cai

et al. 2017

Journal of Experimental Nanoscience

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This article reviews recent advances in the shape-controlled synthesis routes of hierarchical Ag dendritic nanostructures. Various fabricated techniques, with or without templates or surfactants, electrochemical method and sonochemical, microwave or photochemical assisted synthesis method, can be amazingly effective in the dendritic Ag nanostructures synthesis, if synthetic parameters are carefully selected. The involved synthesis mechanism are discussed in order to control the limited factors along the fabricated progress efficiently and then to find new synthetic means. Also, the blemish of the above synthesis routes that hinders the practical application is pointed out to inspire the future research.

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“…The large nanostructures, which have a domain size ranging around several micrometers, but has local nanostructured morphologies, were synthesized using various methods, such as electrochemistry, mixed solvents, mixed surfactants, ultrasonication, solid-based replacement reactions, microwave irradiation, and small organic molecules [80][81][82][83][84][85][86][87][88][89][90][91][92]. These structures, however, were mainly investigated with respect to their synthetic mechanisms and physical properties and have rarely demonstrated their useful applications.…”

Section: Hierarchically Branched Silver Nanostructures (Hbagnss)mentioning

confidence: 99%

Silver nanomaterials for the detection of chemical and biological targets

Lee

2014

Nanotechnology Reviews

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Abstract:Silver nanomaterials have attracted a lot of interest from researchers, mainly owing to their distinctive optical properties such as localized surface plasmon resonance (LSPR) and surface-enhanced Raman scattering (SERS). These properties are particularly interesting for the diagnostic applications when combined with target-recognition capabilities of surface ligands and target concentration-dependent quantitative aspects of the LSPR or SERS signal. This review covers these two main optical properties of silver nanomaterials with respect to their sensing applications for various chemical and biological targets. The LSPR-based colorimetric detection schemes are further divided into two categories based on what they depend on: (1) assembly and (2) deformation of the silver nanoparticle probes. Because the various shapes of the silver nanomaterials are highly associated with how to design and control the LSPR-and SERS-based detection schemes, the latest progress in the development of highly sensitive and selective detection strategies are discussed with respect to the morphological diversity of the silver nanomaterials.

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Simple method for electrochemical preparation of silver dendrites used as active and stable SERS substrate

Cited by 46 publications

References 30 publications

Controllable synthesis of metal particles by a direct current electrochemical approach

Controllable synthesis of metal particles by a direct current electrochemical approach

Insight into the fabrication and perspective of dendritic Ag nanostructures

Silver nanomaterials for the detection of chemical and biological targets

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