A distance-triggered signaling on-off mechanism by plasmonic Au nanoparticles: toward advanced photocathodic DNA bioanalysis.

Gao-Chao FanHuan ZhaoLinzheng MaYanwei LuXi-Liang Luo

Published in: Chemical communications (Cambridge, England) (2020)

An efficient signaling on-off mechanism was first proposed by integrating exciton-plasmon coupling and exciton energy transfer into cathodic PEC bioassays. This signaling on-off mechanism has endowed the cathodic PEC biosensor with powerful capability for ultrasensitive and specific detection of target DNA.

Keyphrases

energy transfer
quantum dots
label free
single molecule
sensitive detection
circulating tumor
gold nanoparticles
cell free
room temperature
reduced graphene oxide
nucleic acid
circulating tumor cells