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A facile method for preparation of gold nanoparticles with high SERS efficiency in the presence of inositol hexaphosphate.

Authors
  • Zhu, Xuan1
  • Yang, Haifeng
  • Wang, Na
  • Zhang, Rui
  • Song, Wei
  • Sun, Yiping
  • Duan, Guoping
  • Ding, Wen
  • Zhang, Zongrang
  • 1 Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, PR China. , (China)
Type
Published Article
Journal
Journal of Colloid and Interface Science
Publisher
Elsevier
Publication Date
Feb 15, 2010
Volume
342
Issue
2
Pages
571–574
Identifiers
DOI: 10.1016/j.jcis.2009.10.060
PMID: 19932487
Source
Medline
License
Unknown

Abstract

This paper described a facile method for preparation of gold nanoparticles with high efficient SERS activity within short reaction time in the presence of an environmentally benign and low-cost reagent named inositol hexaphosphate (IP(6)). IP(6) acted as a tunable cross-linker to obtain a suitable separation (about 2nm) between the neighboring particles for certain surface plasmons by adjusting the dosages of IP(6). When the molar ratio of Au to IP(6) was 10:1, gold particles presented in nano-pearl-necklace pattern, demonstrating the high enhancement factor (>10(7)) for 2-mercaptopyridine (2-Mpy) Raman scattering and high stability (>2months).

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