Polypyrrole nanowire modified with Gly-Gly-His tripeptide for electrochemical detection of copper ion.
本文报道了一种用于电化学检测铜离子(Cu2+)的新型生物传感器。该传感器以羧基端封端的过氧聚吡咯纳米线(OPPy NW)电极为换能器,以甘氨酸-甘氨酸-组氨酸三肽(Gly-Gly-His,GGH)为识别探针。聚吡咯纳米线通过一步无模板电聚合制备,直径约60–90 nm;在聚合过程中引入吡咯-3-羧酸(Py-COOH),使纳米线表面带...