Amperometric detection of catechol using tyrosinase modified electrodes enhanced by the layer-by-layer assembly of gold nanocubes and polyelectrolytes.
本文报道了一种检测儿茶酚的安培生物传感器。以丝网印刷碳电极(SPCE)为基底,在电沉积金纳米粒子(AuNPs)上自组装羧酸终止烷硫醇,再层层自组装(LbL)带正电的CTAB稳定金纳米立方体(AuNCs)与带负电的聚(4-苯乙烯磺酸钠)(PSS),并将酪氨酸酶(Tyr)固定于AuNC层。通过循环伏安(CV)和方波伏安(SWV)测量酶催...