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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Bovine Serum Albumin as an Effective Surface Regulating Biopolymer for Morphology Control of Gold Polyhedrons

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Title
Bovine Serum Albumin as an Effective Surface Regulating Biopolymer for Morphology Control of Gold Polyhedrons
Author(s)
Seon Joo Lee; Nicola Scotti; Nicoletta Ravasio; Im Sik Chung; Hyunjoon Song
Publication Date
2013-07
Journal
CRYSTAL GROWTH & DESIGN, v.13, no.9, pp.4131 - 4137
Publisher
AMER CHEMICAL SOC
Abstract
Morphology control of gold nanocrystals was successfully carried out via a modified polyol process using bovine serum albumin (BSA) as a surface regulating biopolymer. By combining a small amount of AgNO3 as an additive, BSA yielded regular Au octahedrons, cubes, and higher polygons owing to the underpotential deposition of Ag species onto {100} facets. Unexpectedly, a uniform tetrahexahedral morphology that had high-index facets of {740} and {210} on the surface was formed at a relatively high concentration of AgNO3 with BSA, and was due to the coordination power of BSA to a gold surface weaker than that of poly(vinyl pyrrolidone). The resulting gold polyhedrons were aggregated after the synthesis because of the partial denaturation of BSA, but the simple surface exchange with 11- mercaptoundecanoic acid enabled a stable dispersion in aqueous solution.
URI
https://pr.ibs.re.kr/handle/8788114/1295
ISSN
1528-7483
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
2013-07-23-Crystal Growth and Design-Bovine Serum Albumin.pdfDownload

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