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

• Main Authors: Feng, Yuhua, Wang, Yong, Wang, Hong, Chen, Tao, Tay, Yee Yan, Yao, Lin, Yan, Qingyu, Li, Shuzhou, Chen, Hongyu
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/96618; http://hdl.handle.net/10220/10356
• Institution: Nanyang Technological University

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...