Engineering "hot" nanoparticles for surface-enhanced Raman scattering by embedding reporter molecules in metal layers

Yuhua Feng; Yong Wang; Hong Wang; Tao Chen; Yee Yan Tay; Lin Yao; Qingyu Yan; Shuzhou Li; Hongyu Chen

doi:10.1002/smll.201102215

Engineering "hot" nanoparticles for surface-enhanced Raman scattering by embedding reporter molecules in metal layers

Small. 2012 Jan 23;8(2):246-51. doi: 10.1002/smll.201102215. Epub 2011 Nov 29.

Authors

Yuhua Feng¹, Yong Wang, Hong Wang, Tao Chen, Yee Yan Tay, Lin Yao, Qingyu Yan, Shuzhou Li, Hongyu Chen

Affiliation

¹ Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore, Website: http://www.ntu.edu.sg/home/hongyuchen/

PMID: 22125121
DOI: 10.1002/smll.201102215

Abstract

Ag is deposited on the surface of Au nanoparticles functionalized with 4-mercaptobenzoic acid (MBA). Exceptionally strong surface-enhanced Raman scattering (SERS) signals are observed from the resulting colloid. Using SERS as a tool, evidence is obtained for the embedding of MBA inside the nanoscale metal layer.

Keywords: core/shell materials; encapsulation; ligand embedding; nanoparticles; surface-enhanced Raman scattering.

Publication types

Research Support, Non-U.S. Gov't