A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag .
Zhixiang LuYunming LiuShuhan LuYuan LiXiaolan LiuYu QinLi-Yan ZhengPublished in: RSC advances (2018)
The detection of Ag + in the environment is very important to determine the level of pollution from silver complexes, which have caused various human health problems. Herein, an aggregation-induced emission (AIE) chromophore (tetraphenylethane, TPE) attached to a benzimidazole group (tetra-benzimidazole, TBI-TPE) is synthesized and utilized to detect Ag + in the environment. The strong chelating effect between the benzimidazole group and Ag + leads to the formation of aggregates, and strong yellow fluorescence signals were observed after adding Ag + into a TBI-TPE solution. The stoichiometry of the complex of TBI-TPE and Ag + was established to be 1 : 2 using photochemical and mass spectra measurements. The detection limit of the Ag + assay is 90 nM with a linear range from 100 nM to 6 μM. This study provides a facile method to determine Ag + in real environmental samples with satisfactory results.
Keyphrases
- quantum dots
- human health
- highly efficient
- fluorescent probe
- visible light
- traumatic brain injury
- risk assessment
- living cells
- loop mediated isothermal amplification
- mental health
- heavy metals
- real time pcr
- sensitive detection
- climate change
- severe traumatic brain injury
- energy transfer
- mild traumatic brain injury
- high throughput
- molecular dynamics
- air pollution
- drinking water
- molecular dynamics simulations