A facile fluorescent sensor based on silicon nanowires for dithionite

作者：Cao, Xingxing; Mu, Lixuan^*; Chen, Min; She, Guangwei

来源：Applied Surface Science, 2018, 441: 388-393.

DOI：10.1016/j.apsusc.2018.01.313

• Fluorescent sensor
• Dithionite detection
• Surface modification
• Silicon nanowires, arrays

A facile and novel fluorescent sensor for dithionite has been constructed by simultaneously immobilizing dansyl group (fluorescence molecule) and dabsyl group (quencher and recognizing group) on the silicon nanowires (SiNWs) and SiNW arrays surface. This sensor for dithionite exhibited high selectivity and a good relationship of linearity between fluorescence intensities and dithionite concentrations from 0.1 to 1 mM. This approach is straightforward and does not require complicated synthesis, which can be extended to develop other sensors with similar rationale.

• 出版日期2018-5-31
• 单位中国科学院大学; 中国科学院理化技术研究所