Efficient quenching of electrochemiluminescence from K-doped graphene-CdS:Eu NCs by G-quadruplex-hemin and target recycling-assisted amplification for ultrasensitive DNA biosensing.
本文基于钾掺杂石墨烯–CdS:Eu 纳米晶复合材料和缺口内切酶(NEase)辅助链断裂循环,开发了一种超灵敏、高选择性电化学发光(ECL)DNA 生物传感器。首先通过静电作用将 3-巯基丙酸(MPA)修饰的 CdS:Eu 纳米晶与聚二烯丙基二甲基氯化铵(PDDA)功能化的钾掺杂石墨烯组装成 K-GR-NC 复合膜,修饰玻碳电极(GC...