2 条结果 关键词:离子选择性膜 ×

Potentiometric urea biosensor based on an immobilised fullerene-urease bio-conjugate.

Sensors (Basel, Switzerland) 2013 Saeedfar K, Heng LY, Ling TL, Rezayi M

本文报道一种基于固定化富勒烯-脲酶生物偶联物的电位法尿素生物传感器。通过超声、加热和紫外辐照在富勒烯表面引入羧基,再利用EDC或DCC将脲酶共价固定化于C60-COOH,形成C60-urease生物偶联物。将该生物材料沉积到含非增塑聚正丁基丙烯酸酯(PnBA)膜并包埋氢离子载体的丝网印刷电极上,构成pH选择性电位传感器。脲酶催化尿素...

Enzyme immobilization strategies and electropolymerization conditions to control sensitivity and selectivity parameters of a polymer-enzyme composite glucose biosensor.

Sensors (Basel, Switzerland) 2010 Rothwell SA, Killoran SJ, O'Neill RD

为开发适用于体内监测的生物传感器表征策略,作者在直径125 µm的铂圆柱线电极(PtC)上固定葡萄糖氧化酶(GOx),构建葡萄糖生物传感器。采用三种固定策略:在电合成聚邻苯二胺(PoPD)前、后或过程中共固定;PoPD同时作为离子选择性膜。以H2O2(酶反应信号分子)、葡萄糖及典型干扰物抗坏血酸(AA)校准,测定聚合物渗透性和表观M...