3D nanoporous plasmonic chips for extremely sensitive NO2 detection.

Sunho KimHo Sang JungDong-Ho KimSanghyuk Park Shin-Hyun Kim Sung-Gyu Park

Published in: The Analyst (2019)

The detection of toxic gas molecules using the surface-enhanced Raman spectroscopy (SERS) technique is very challenging due to the low affinity of gas molecules. Here, we report extremely sensitive SERS-based NO2 gas sensors based on 3D nanoporous Au nanostructures with a high affinity for NO2 gas molecules and high density of hotspots.

Keyphrases

raman spectroscopy
label free
high density
room temperature
sensitive detection
gold nanoparticles
loop mediated isothermal amplification
carbon dioxide
real time pcr
metal organic framework
reduced graphene oxide
single molecule
ionic liquid