近日,西南大学袁若教授和刘红艳副教授组装了具有优异光电化学(PEC)效率的新型光活性聚(3,4-乙基-烯二氧噻吩(PEDOT)/FeOOH/BiVO4纳米杂化物,用于构建用于microRNA-375-3p(miRNA-375-3p)检测的超灵敏生物传感器。与传统的FeOOH/BiVO4光活性复合材料相比,由于PEDOT促进了界面电荷分离,PEDOT/FeOOH/BiVO4纳米杂化物表现出显著增强的光电流,PEDOT不仅用作电子导体,还用作局部光热加热器以增强光生载流子分离。基于该PEDOT/FeOOH/BiVO4光电极和包括靶诱导催化发夹组装(CHA)和杂交链式反应(HCR)的无酶信号放大策略,建立了用于检测miRNA-375-3p的PEC传感平台,实现了从1 fM到10 pM的宽线性范围,检测限为0.3 fM。相关工作以“PEDOT/FeOOH/BiVO4 Nanohybrids
with Excellent Photoelectric Performance Promoted by Photothermal Effects for
the Ultrasensitive Detection of MicroRNA-375-3p”为题发表在国际著名期刊Analytical Chemistry上。
PEDOT/FeOOH/BiVO4
Nanohybrids with Excellent Photoelectric Performance Promoted by Photothermal
Effects for the Ultrasensitive Detection of MicroRNA-375-3p Shuai Wang, Yaqin Chai, Ruo Yuan,* Hongyan
Liu*Anal. Chem.DOI: 10.1021/acs.analchem.2c0465