Biological Routes to Gold Nanoplates
Author(s)
Xie, Jianping
Lee, Jim Yang
Wang, Daniel I.C.
Ting, Yen Peng
Date Issued
January 2007
Series/Report no.
Chemical and Pharmaceutical Engineering (CPE)
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.
Subjects
Gold
Nanoparticle
Nanoplates
Triangular
Aspergillus Niger
Mycelia-Free Spent Media
Persistent DSpace Link
