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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47272

Title: One-pot Tuning of Au Nucleation and Growth: From Nanoclusters to Nanoparticles
Authors: G. Margaritondo
Sheng-Feng Lai
Wen-Chang Chen
Cheng-Liang Wang
Hsiang-Hsin Chen
Shin-Tai Chen
Chia-Chi Chien
Yi-Yun Chen
Wen-Ting Hung
Xiaoqing Cai
Enrong Li
Ivan M. Kempson
Y. Hwu
C. S. Yang
Eng-Soon Tok
Hui Ru Tan
Ming Lin
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2011-07
Issue Date: 2018-07-09T08:16:41Z
Publisher: LANGMUIR
Abstract: ABSTRACT: We describe a simple and effective method to
obtain colloidal surface-functionalized Au nanoparticles. The
method is primarily based on irradiation of a gold solution with
high-flux X-rays from a synchrotron source in the presence of
11-mercaptoundecanoic acid (MUA). Extensive tests of the
products demonstrated high colloidal density as well as excellent
stability, shelf life, and biocompatibility. Specific tests with
X-ray diffraction, UVvisible spectrometry, visible microscopy,
Fourier transform infrared spectroscopy, dark-field visible-light
scattering microscopy, and transmission electron microscopy
demonstrated that MUA, being an effective surfactant, not only allows tunable size control of the nanoparticles, but also facilitates
functionalization. The nanoparticle sizes were 6.45 ( 1.58, 1.83 ( 1.21, 1.52 ( 0.37 and 1.18 ( 0.26 nm with no MUA and with
MUA-to-Au ratios of 1:2, 1:1, and 3:1. The MUA additionally enabled functionalization with L-glycine. We thus demonstrated
flexibility in controlling the nanoparticle size over a large range with narrow size distribution.
Relation: 27(13) pp.8424–8429
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47272
Appears in Collections:[光電科學研究所] 期刊論文

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