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

Xuan Zhu; Haifeng Yang; Na Wang; Rui Zhang; Wei Song; Yiping Sun; Guoping Duan; Wen Ding; Zongrang Zhang

doi:10.1016/j.jcis.2009.10.060

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

J Colloid Interface Sci. 2010 Feb 15;342(2):571-4. doi: 10.1016/j.jcis.2009.10.060. Epub 2009 Oct 29.

Authors

Xuan Zhu¹, Haifeng Yang, Na Wang, Rui Zhang, Wei Song, Yiping Sun, Guoping Duan, Wen Ding, Zongrang Zhang

Affiliation

¹ Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, PR China.

PMID: 19932487
DOI: 10.1016/j.jcis.2009.10.060

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).