An efficient sodium citrate-promoted synthetic method for the preparation of AuNPs@mesoSiO2 for surface enhanced Raman spectroscopy in the detection of diluted blood

Yun Zou; Feiyu Yang; Xiaoliang Yuan; Ke Ma; Hui Li; Xuejun Zhao; Nengbin Cai; Xiaochun Huang; Wenbin Liu

Journal of Saudi Chemical Society (Dec 2017)

An efficient sodium citrate-promoted synthetic method for the preparation of AuNPs@mesoSiO2 for surface enhanced Raman spectroscopy in the detection of diluted blood

Yun Zou,
Feiyu Yang,
Xiaoliang Yuan,
Ke Ma,
Hui Li,
Xuejun Zhao,
Nengbin Cai,
Xiaochun Huang,
Wenbin Liu

Affiliations

Yun Zou: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Feiyu Yang: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Xiaoliang Yuan: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Ke Ma: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Hui Li: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Xuejun Zhao: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Nengbin Cai: Shanghai Key Laboratory of Crime Science Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Xiaochun Huang: Shanghai Key Laboratory of Crime Science Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, 803 Zhongshan North 1st Road, Shanghai 200083, PR China
Wenbin Liu: Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 803 Zhongshan North 1st Road, Shanghai 200083, PR China; Corresponding author.

Journal volume & issue: Vol. 21, no. 8
pp. 1007 – 1012

Abstract

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We report on a novel, green, and efficient organically synthetic method for the preparation of gold nanoparticles embedded in mesoporous silica (AuNPs@mesoSiO2). AuNPs@mesoSiO2 prepared by one-pot synthesis method using sodium citrate as the key reactant was applied for surface enhanced Raman spectroscopy (SERS) application in the analysis of diluted blood traces. The synthesized nanoparticles are of high quality, as characterized by use of X-ray diffraction, scanning electron microscopy and transmission electron microscopy. They exhibit high surface areas (170.18â883Â m2/g) and significant SERS enhancement. Detection of diluted blood (v/v, 1:50) traces through AuNPs@mesoSiO2 enhanced SERS is demonstrated, which has not been studied in previous literature. The combination of the SERS and AuNPs@mesoSiO2 would be a valuable tool for forensic investigation. Keywords: Gold nanoparticles, Mesoporous materials, Synthesis, SERS, Blood trace

Published in Journal of Saudi Chemical Society

ISSN: 1319-6103 (Print)
Publisher: Elsevier
Country of publisher: Saudi Arabia
LCC subjects: Science: Chemistry
Website: http://www.journals.elsevier.com/journal-of-saudi-chemical-society/

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