Novel fluorescent Ag nanoclusters are prepared based on an etching method with citrate and GSH as the stabilizer of Ag nanocrystals and the etchant. The as-prepared Ag nanoclusters show good pH-switchable agglomeration and dispersion accompanied with the reversible agglomeration induced signal quenching. The pH-regulated behavior mechanism has been discussed, and the Ag nanoclusters is introduced as a probe to establish regenerable biosensing platform for urea and glucose detection.
- Jiang Xue Dong
- Zhong Feng Gao
- Hong Qun Luo
