Structural properties of 'naked' gold nanoparticles formed by synchrotron X-ray irradiation

被引：45

作者：

Wang, Chang-Hai

Chien, Chia-Chi

Yu, Yen-Lu

Liu, Chi-Jen

Lee, Cheng-Feng

Chen, Chih-Hsiung

Hwu, Y. ^{[1
]}

Yang, Chung-Shi

Je, Jung-Ho

Margaritondo, G.

机构：

[1] Acad Sinica, Inst Phys, Taipei, Taiwan

[2] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu, Taiwan

[3] Natl Taiwan Univ, Dept Chem Engn, Taipei 10764, Taiwan

[4] Natl Taiwan Ocean Univ, Inst Optoelect Sci, Chilung, Taiwan

[5] Natl Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

[6] Natl Hlth Res Inst, Nanomed Res Ctr, Chunan, Taiwan

[7] Pohang Univ Sci & Technol, Xray Imaging Ctr, Pohang, South Korea

[8] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2007年 / 14卷

关键词：

structure; morphology; gold nanoparticles; SILVER NANOPARTICLES; LASER-ABLATION; PARTICLES; FEMTOSECOND; ABSORPTION; DEPOSITION; CHEMISTRY; NANORODS; CLUSTERS; THERAPY;

D O I：

10.1107/S0909049507044743

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The formation of colloidal unmodified ('naked') gold nanoparticles is investigated by irradiation of a precursor solution with X-rays from a synchrotron source. An interesting morphological evolution as a function of exposure time, from cross-linked network-like structure to individual particles, has been discovered. The particle size decreased with the exposure time and was influenced by the ionic strength of the precursor solution. Contrary to gamma- ray exposure, an OH radical scavenger was not required for cluster formation.

引用

页码：477 / 482

页数：6

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