Air-stable plasmonic bubbles as a versatile three-dimensional surface-enhanced Raman scattering platform for bi-directional gas sensing.

Yong Xiang LeongCharlynn Sher Lin KohGia Chuong Phan-QuangEmily Xi TanZhao Cai WongWee Liang YewBao Ying Natalie LimXuemei HanXing Yi Ling

Published in: Chemical communications (Cambridge, England) (2022)

Harnessing large hotspot volumes is key for enhanced gas-phase surface-enhanced Raman scattering (SERS) sensing. Herein, we introduce versatile, air-stable 3D 'Plasmonic bubbles' with bi-directional sensing capabilities. Our Plasmonic bubbles are robust, afford strong and homogenous SERS signals, and can swiftly detect both encapsulated and surrounding 4-methylbenzenethiol vapors.

Keyphrases

label free
gold nanoparticles
single molecule
sensitive detection
energy transfer
machine learning