Biological Routes to Gold Nanoplates
Name
MEBCS003.pdf
Size
12.04 KB
Format
Adobe PDF
Checksum (MD5)
40acffaa9c1bab0cded0603baf6cf78e
Author(s)
Xie, Jianping
Lee, Jim Yang
Ting, Yen Peng
Date Issued
January 2005
Series/Report no.
Molecular Engineering of Biological and Chemical Systems (MEBCS);
Abstract
Much effort has been devoted to the synthesis of gold nanoparticles with different shapes, including the zero-dimensional nanospheres, one dimensional nanorods, and two-dimensional nanoplates. Compared to zero or one dimensional nanostructures, the synthesis of two-dimensional nanostructures in high yield has always been more involved, often requiring complex and time-consuming steps such as morphology transformation from the nanospheres, or the seeded growth process. Herein we report a high yield method for gold nanoplate synthesis using the extract of unicellular green alga Chlorella vulgaris, which can be carried out under ambient conditions. More than 90% of the total nanoparticle population is of the platelet morphology, surpassing the previously reported value of 45%. The control of the anisotropic growth of different planes; as well as the lateral size, has also been partially optimized.
Subjects
gold nanoplate synthesis
high yield synthesis
algae
Chlorella vulgaris
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