Deposition of Gold Nanoparticles on Polystyrene Spheres by Electroless Metal Plating Technique

Kobayashi, Yoshio; Tadaki, Yohei; Nagao, Daisuke; Konno, Mikio

doi:10.1088/1742-6596/61/1/117

Cited by 18 publications

(19 citation statements)

References 8 publications

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“…Covalent immobilization of biomolecules on PS and GS surfaces can be achieved using a variety of techniques including wet chemical treatments, silane monolayers, plasmas, flame, and UV irradiation (Goddard and Hotchkiss 2007). Among these, silane monolayer using 3-aminopropylyl triethoxy silane (APTES), 3-aminopropylyl trimethoxy silane (APTMS), N-[3-(trimethoxysilyl) propyl]ethylenediamine (TMSPED), and 3-glycidoxy propyl trimethoxy silane (GOPS) for the functionalization of the amine and the epoxy groups on the PS plate and the GS surfaces (Huang et al 2012;Moirangthem et al 2012;Wang and Vaughn 2008;Yang et al 2005;Lin et al 2006;Kobayashi et al 2007;Dixit et al 2011). APTES functionalized PS plates and GS are used in the immobilization of antibodies for the detection of antigens.…”

Section: Introductionmentioning

confidence: 99%

Gold nanoparticles assisted characterization of amine functionalized polystyrene multiwell plate and glass slide surfaces

et al. 2014

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We demonstrated citrate-capped gold nanoparticles assisted characterization of amine functionalized polystyrene plate and glass slide surfaces through AuNPs staining method. The effect of AuNPs concentration on the characterization of amine modified surfaces was also studied with different concentration of AuNPs (ratios 1.0-0.0). 3-Aminopropylyl triethoxy silane has been used as amine group source for the surface modification. The interactions of AuNPs on modified and unmodified surfaces were investigated using atomic force microscopy and the dispersibility, and the aggregation of AuNPs was analyzed using UV-visible spectrophotometer. Water contact angle measurement and X-ray photoelectron spectroscopy (XPS) were used to further confirmation of amine modified surfaces. The aggregation of AuNPs in modified multiwell plate leads to the color change from red to purple and they are found to be adsorped on the modified surfaces. Aggregation and adsorption of AuNPs on the modified surfaces through the electrostatic interactions and the hydrogen bonds were revealed by XPS analysis. Remarkable results were found even in the very low concentration of AuNPs (ratio 0.2). This AuNPs staining method is simple, cost-effective, less time consuming, and required very low concentration of AuNPs. These results can be read out through the naked eye without the help of sophisticated equipments.

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Section: Introductionmentioning

confidence: 99%

Gold nanoparticles assisted characterization of amine functionalized polystyrene multiwell plate and glass slide surfaces

et al. 2014

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“…Finally, after addition of Au NPs with a concentration of 7.8 nM, the absorption of P3HT NPs is shifted to 459 nm (from 440 nm to 459 nm) (Fig. 37 However, no spectral shifting is observed in the absence of surface modification by HDA (Fig. The red shifting as well as spectral broadening of the absorption band occurs due to the aggregation phenomena of Au NPs on the polymer nanoparticle surface (Fig.…”

Section: Resultsmentioning

confidence: 99%

Conjugated polymer P3HT–Au hybrid nanostructures for enhancing photocatalytic activity

Jana

Bhattacharyya

Patra

2015

Phys. Chem. Chem. Phys.

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Metal-semiconductor nanostructures have been the subject of great interest, mainly due to their interesting optical properties and their potential applications in light harvesting, photocatalysis and photovoltaic devices. Here, we have designed raspberry type organic-inorganic hybrid nanostructures of the poly-3-hexylthiophene (P3HT)-Au nanoparticle (NP) composite by a simple solution based synthetic method. The electronic interaction of semiconducting P3HT polymer nanoparticles with Au nanoparticles exhibits a bathochromic shift of absorption bands and significant photoluminescence quenching of P3HT nanoparticles in this organic-inorganic hybrid system. The photocatalytic activity of this raspberry type hybrid nanostructure is demonstrated under the visible light irradiation and the degradation efficiency is found to be 90.6%. Such organic-inorganic hybrid nanostructures made of a semiconducting polymer and plasmonic nanoparticles could pave the way for designing new optical based materials for applications in photocatalytic and light harvesting systems.

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“…The AuNPs and P3HT‐SH each had one absorption peak located around 531 and 506 nm, respectively; whereas the absorption peak of the Janus P3HT‐S‐AuNPs in THF was around 547 nm. Compared with P3HT‐SH, it was clear that after the attachment of AuNPs and P3HT‐SH particles, a redshift and a spectral broadening of the absorption band occurred . This could be explained by the functionalization of the AuNP surface .…”

Section: Resultsmentioning

confidence: 97%

Preparation at the water–oil interface of Janus composite nanoparticles and their photoelectric properties

Qiao

Zhang

et al. 2017

J of Applied Polymer Sci

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A series of Janus composite poly(3-hexyl thiophene)-b-poly(3-thiophenehexanethiol)-gold nanoparticles were synthesized by self-assembly at the water-oil interface, and their photoelectric performance was investigated. The results show that the precise Janus composite nanostructure could be controlled by the adjustment of the reaction temperature and stirring time. The UV-visible measurement revealed that the absorption maximum had an appreciable redshift, and the photoluminescence (PL) spectra indicated that the PL intensity of poly(3-hexyl thiophene)-b-poly[3-(6-thiolhexyl thiophene)] decreased upon the addition of gold nanoparticles. In addition, compared to a common composite of poly(3-hexyl thiophene), the conductivity properties of the Janus composite nanostructure increased remarkably. Therefore, the Janus composite nanoparticles have the potential for applications in photovoltaic devices.

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Deposition of Gold Nanoparticles on Polystyrene Spheres by Electroless Metal Plating Technique

Cited by 18 publications

References 8 publications

Gold nanoparticles assisted characterization of amine functionalized polystyrene multiwell plate and glass slide surfaces

Gold nanoparticles assisted characterization of amine functionalized polystyrene multiwell plate and glass slide surfaces

Conjugated polymer P3HT–Au hybrid nanostructures for enhancing photocatalytic activity

Preparation at the water–oil interface of Janus composite nanoparticles and their photoelectric properties

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