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Biological Routes to Gold Nanoplates

Author(s)
Xie, Jianping; Lee, Jim Yang; Wang, Daniel I.C.; Ting, Yen Peng
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Abstract
Gold nanoplates are promising for optical and electronic applications; but their synthesis is complex, often requiring a seeded growth process or spherical to triangle morphology transformation. We have discovered a biological protocol to promote the anisotropic growth of different crystal planes under ambient conditions. Thin, flat, single-crystalline gold nanoplates were produced when aqueous chloroaurate ions reacted with the mycelia-free spent medium. While the exact mechanism for this shape-controlled synthesis is not clear at this time, the possibility of achieving nanoparticle shape control in a fungal based system is exciting.
Date issued
2007-01
URI
http://hdl.handle.net/1721.1/35868
Series/Report no.
Chemical and Pharmaceutical Engineering (CPE)
Keywords
Gold, Nanoparticle, Nanoplates, Triangular, Aspergillus Niger, Mycelia-Free Spent Media

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