Macroscopic visual detection of phoxim by calix[4]arene-based host-guest chemistry

作者：Feng, Jiyang; Yang, Guanxing; Mei, Yuxiao; Cao, Xianliang; Wang, Yecan; Li, Haibing^*; Lu, Qingye^*

来源：Sensors and Actuators B: Chemical , 2018, 271: 264-270.

DOI：10.1016/j.snb.2018.05.107

• Calix[4]arene
• Pesticide
• Si-surface
• Wettability sensor

A new coumarin-appended calix[4]arene (C4C2) was synthesized and a self-assembled monolayers modified silicon surface (C4C2-SAMs) was constructed via click chemistry. The water contact angle measurements show that these C4C2-SAMs exhibited highly selective macroscopic response towards phoxim with a detection limit of 1 x 10(-6) M. UV-vis and fluorescence titration further confirmed the high recognition selectivity of the C4C2-SAMs towards phoxim. The C4C2-SAMs are capable of detecting phoxim in real river water samples through visual water contact angle change, suggesting that the C4C2-SAMs can be used as a convenient and effective sensor for phoxim.

• 出版日期2018-10-15
• 单位华中师范大学