Target-triggered hybrid chain amplified fluorescence aptasensor based on label-free dye and MnO2 nanosheets system for Escherichia coli detection. - Liang, Hao; Li, Danliang; Jia, Shiyu; Zhang, Xuebing; Bai, Qinqin; Wang, Ziyi; Cai, Yujiao; Liu, Jian; Chen, Lili (Microchimica Acta, 2025)