Construction of triangular silver nanoprism-upconversion nanoparticle composites for the detection of disinfection
Qing Chen1, Zhenhua Liu1, Dailiang Zhang1
1Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China. yangminghui@csu.edu.cn.
Abstract:
A novel luminescent probe for trichloroacetic acid (TCAA) was constructed based on luminescence resonance energy transfer (LRET) between upconversion nanoparticles (UCNPs) and triangular silver nanoprisms (AgNPR). The specific etching of AgNPR by TCAA effectively suppressed LRET, restored UCNPs luminescence, and enabled highly selective and sensitive detection.


