Synthesis of Au@Pd core–shell nanoparticles with controllable size and their application in surface-enhanced Raman spectroscopy

Hu, Jiawen; Zhang, Yong; Li, Jian‐Feng; Liu, Zheng; Ren, Bin; Sun, Shi‐Gang; Zhang, Tian; Lian, Tianquan

doi:10.1016/j.cplett.2005.04.071

Cited by 116 publications

(96 citation statements)

References 28 publications

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“…The Au-Pd core-shell particles were produced using the as-prepared 19 nm Au particles as cores; varying amounts of H 2 PdCl 4 were reduced to form the Pd shells over the Au cores, using l-ascorbic acid as reducing agent [28,30,31]. The resulting core-shell particles are stabilised by both citrate and ascorbic acid.…”

Section: Methodsmentioning

confidence: 99%

Solids at the liquid–liquid interface: Electrocatalysis with pre-formed nanoparticles

Gründer

Fabian

Booth

et al. 2013

Electrochimica Acta

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a b s t r a c tThe catalytic activity of Au and Au-Pd core-shell nanoparticles is investigated at the liquid-liquid interface. The particles are shown to catalyse a process which is attributed to interfacial oxygen reduction. The Au-Pd particles are shown to be more active and correlations made between the catalytic activity and particle radius, surface area and concentration give insight into the mechanism of the catalytic process. Comparison is also made with an analogous bipolar configuration, formed by making contact between the liquid half-cells using a gold wire.

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Section: Methodsmentioning

confidence: 99%

Solids at the liquid–liquid interface: Electrocatalysis with pre-formed nanoparticles

Gründer

Fabian

Booth

et al. 2013

Electrochimica Acta

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“…Another novel approach can generally be described as a "borrowing" technique where a less SERS-active material is deposited on an SERS-active substrate and "borrows" from the strong local field generated in the SERS-active material. Several reports [22][23][24][25] have demonstrated how to obtain core-shell and hybrid nanomaterials for detecting certain molecules based on SERS effect. For example, Tian's group [22] revealed that Au@Pd nanopar- ticles dispersed on a polished Pt electrode surface exhibited SERS effects for the adsorbed pyridine and SCN − .…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Au@Pt hybrid nanorods

Guo

Wang

et al. 2007

Journal of Colloid and Interface Science

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“…In recent years, because of their excellent stability, controllability, catalytic and optical characteristics [8][9][10][11], coreshell nanoparticles (CS NPs) have been widely used. Take bimetallic Ag/Au and Au/Ag NPs for example, these kinds of CS NPs can make up for the deficiencies of both gold and silver NPs.…”

Section: Introductionmentioning

confidence: 99%

Silver–gold core-shell nanoparticles containing methylene blue as SERS labels for probing and imaging of live cells

Guo

Jia

et al. 2012

Microchim Acta

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We report on silver-gold core-shell nanostructures that contain Methylene Blue (MB) at the gold-silver interface. They can be used as reporter molecules in surfaceenhanced Raman scattering (SERS) labels. The labels are stable and have strong SERS activity. TEM imaging revealed that these nanoparticles display bright and dark stripe structures. In addition, these labels can act as probes that can be detected and imaged through the specific Raman signatures of the reporters. We show that such SERS probes can identify cellular structures due to enhanced Raman spectra of intrinsic cellular molecules measured in the local optical fields of the core-shell nanostructures. They also provide structural information on the cellular environment as demonstrated for these nanoparticles as new SERS-active and biocompatible substrates for imaging of live cells.

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Synthesis of Au@Pd core–shell nanoparticles with controllable size and their application in surface-enhanced Raman spectroscopy

Cited by 116 publications

References 28 publications

Solids at the liquid–liquid interface: Electrocatalysis with pre-formed nanoparticles

Solids at the liquid–liquid interface: Electrocatalysis with pre-formed nanoparticles

Bifunctional Au@Pt hybrid nanorods

Silver–gold core-shell nanoparticles containing methylene blue as SERS labels for probing and imaging of live cells

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