A novel label-free fluorescent sensor for highly sensitive detection of bleomycin based on nitrogen-doped graphene quantum dots.
本文报道了一种用于快速检测博来霉素硫酸盐(bleomycin sulphate, BLM)的新型无标记荧光生物传感器。该传感器基于氮掺杂石墨烯量子点(N-GQDs)的荧光“关—开”响应,N-GQDs由柠檬酸和氨通过绿色方法制备。N-GQDs表面丰富的羧基使单链DNA(ssDNA)能够通过π-π堆积作用强烈吸附在其表面,形成N-GQD...