title: Sensing mechanism of nanofibrous membranes for fluorescent detection of metal ion.
abstract: We have reported a hexaphenylsilole/polymethyl methacrylate (HPS/PMMA) composite film with a lotus-leaf-like structure shows highly stability and excellent sensitivities for metal ions (Fe3+ and Hg2+) a few years ago. In the above paper, it was considered that the special surface morphology is the important aspects which enhance the stability of the sensor. But it is still a lack of research on the sensing mechanism. In this paper, the sensing mechanism of fiber membrane is continuing to study in detail. The experimental results show that the electron-transfer mechanism is a crucial factor for the fluorescent quenching.
authors: Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors: Liping
authors: L
authors: Heng
authors: Bin
authors: B
authors: Wang
authors: Yuqi
authors: Y
authors: Zhang
authors: Lingjuan
authors: L
authors: Zhang
authors: Ben Zhong
authors: BZ
authors: Tang
authors: Lei
authors: L
authors: Jiang
mesh_terms: D003460:Crystallization / Q000379:methods; D007477:Ions; D008422:Materials Testing; D008567:Membranes, Artificial; D008670:Metals / Q000032:analysis* / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D007477:Ions; D008567:Membranes, Artificial; D008670:Metals