Direct electrochemistry and electrocatalysis of novel single-walled carbon nanotubes-hemoglobin composite microbelts--towards the development of sensitive and mediator-free biosensor.
作者将单壁碳纳米管(SWNTs)与血红蛋白(Hb)在2,2,2-三氟乙醇中混合后直接电纺至玻碳电极表面,制备SWNTs–Hb复合微带修饰电极,并经戊二醛蒸气交联固定。傅里叶变换红外光谱表明微带中Hb保持天然二级结构,拉曼光谱证实SWNTs成功掺入。循环伏安法显示该复合微带具有明显的Hb血红素Fe(III)/Fe(II)直接电化学响应...