Autor(es): Wu, Juanjuan ; Su, Dongdong ; Qin, Caiqin ; Li, Wei ; Rodrigues, João ; Sheng, Ruilong ; Zeng, Lintao
Data: 2019
Identificador Persistente: http://hdl.handle.net/10400.13/4125
Origem: DigitUMa - Repositório da Universidade da Madeira
Assunto(s): Nile blue; Near-infrared; Fluorescent probe; Thiophenols; Chromogenic; Imaging; .; Faculdade de Ciências Exatas e da Engenharia; Centro de Química da Madeira
Thiophenols as high toxic environmental pollutants are poisonous for animals and aquatic organisms. Therefore, it is indispensable to monitor thiophenols in the environment. Herein, a novel near-infrared fluorescent probe was developed for the detection of thiophenols, which was easily prepared by one-step coupling of 2,4-dini trobenzenesulfonyl chloride with Nile blue. The probe showed a significant near infrared (∼675 nm) fluores cence “turn-on” response to thiophenols with some good features including chromogenic reaction, high sensi tivity and selectivity, fast response, near-infrared emission along with low detection limit (1.8 nM). The probe was employed to rapidly and visually determine thiophenols in several industrial wastewaters with good re coveries (90–110%). Moreover, this probe has been demonstrated good capability for imaging thiophenol in HeLa cells
