Dual-emission 3D supramolecular framework hydrogel beads: highly selective detection of antibiotics and mechanism research
Ke Zhu, Ruiqing Fan, Jian Zhang, Xin Jiang, Wenwen Jia, Bowen Wang, Haoyang Lu, Jingkun Wu, Ping Wang, Yulin Yang
Abstract
functionalized CP hydrogel bead (9A/Cu-atda@Eu3+/SA, 9A = 9-anthraldehyde and SA = sodium alginate) is successfully prepared, which presents ratiometric fluorescence detection of flumequine with a low detection limit (48 nM) and high selectivity. Furthermore, it also displays an excellent fluorescence quenching effect on nitrofuran antibiotics, exhibiting a dual functional performance. In addition, the fluorescence response mechanisms of flumequine and nitrofuran antibiotics are discussed in depth. As a portable material, visualization 9A/Cu-atda@Eu3+/SA beads provide an extensive and convenient application prospect for real-time monitoring of antibiotics in the water environment.