Uniform formation of Au coated polystyrene core–shell structure using metallization process

Kim, Kyoungseob; Koo, Jonghyun; Roh, Yonghan

doi:10.1016/j.tsf.2011.04.133

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…The loading and distribution of NPs self-assembled onto each of the PS spheres has important implications for their utility, such as optimizing these materials for use in a variety of applications [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The loading of NPs on the PS@NPs is controlled by tuning the relative concentrations of NPs and PS spheres during self-assembly.…”

Section: Resultsmentioning

confidence: 99%

“…A versatile method for the preparation of nanoparticle (NP) decorated polystyrene (PS) spheres (PS@NPs) has been sought by a number of researchers due to the broad applicability of these materials in areas such as environmental catalysis, and contrast agents in biological imaging [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Coating the PS sphere with NPs imparts unique properties to the PS sphere.…”

Section: Introductionmentioning

confidence: 99%

“…The preparation of multi-component PS@NPs, consisting of two or more different types of PS@NPs sphere, is of particular interest for applications such as multimodal sensing [20]. Currently reported methods have, however, had limited success in preparing PS@NPs from NPs of a diverse range of compositions, and in controlling the uniformity and loading of the NPs over the surfaces of the PS sphere [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Self-assembly of nanoparticles onto the surfaces of polystyrene spheres with a tunable composition and loading

Pilapil¹,

Wang²,

Paul³

et al. 2015

Nanotechnology

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Functional colloidal materials were prepared by design through the self-assembly of nanoparticles (NPs) on the surfaces of polystyrene (PS) spheres with control over NP surface coverage, NP-to-NP spacing, and NP composition. The ability to control and fine tune the coating was extended to the first demonstration of the co-assembly of NPs of dissimilar composition onto the same PS sphere, forming a multi-component coating. A broad range of NP decorated PS (PS@NPs) spheres were prepared with uniform coatings attributed to electrostatic and hydrogen bonding interactions between stabilizing groups on the NPs and the functionalized surfaces of the PS spheres. This versatile two-step method provides more fine control than methods previously demonstrated in the literature. These decorated PS spheres are of interest for a number of applications, such as catalytic reactions where the PS spheres provide a support for the dispersion, stabilization, and recovery of NP catalysts. The catalytic properties of these PS@NPs spheres were assessed by studying the catalytic degradation of azo dyes, an environmental contaminant detrimental to eye health. The PS@NPs spheres were used in multiple, sequential catalytic reactions while largely retaining the NP coating.

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