3 条结果 关键词:共价固定 ×

A Urea Potentiometric Biosensor Based on a Thiophene Copolymer.

Biosensors 2017 Lai CK, Foot PJ, Brown JW, Spearman P

电位型酶生物传感器可用于工业过程及糖尿病、肾损伤或肝功能异常患者的尿素浓度监测。本研究化学合成并表征了聚(3-己基噻吩-co-3-噻吩乙酸)(P(3HT-co-3TAA))共聚物,将其旋涂于导电氧化铟锡(ITO)玻璃电极表面。脲酶(Urs)通过碳二亚胺偶联共价固定于该共聚物光滑表面。循环伏安法研究了修饰电极的电化学行为与稳定性,分光...

Covalent immobilization of tyrosinase onto cyanuric chloride crosslinked amine-functionalized superparamagnetic nanoparticles: Synthesis and characterization of the recyclable nanobiocatalyst.

International journal of biological macromolecules 2017 Abdollahi K, Yazdani F, Panahi R

本文采用化学共沉淀法合成磁性纳米粒子(MNPs),并通过四乙氧基硅烷(TEOS)溶胶-凝胶法在其表面包覆二氧化硅(SiO2)壳层。随后用 3-氨基丙基三乙氧基硅烷(APTES)对 SiO2@Fe3O4 进行氨基化,再与三聚氯氰(cyanuric chloride, Cy)反应,制备三聚氯氰功能化磁性纳米粒子(Cy-MNPs)。将新鲜...

Horseradish peroxidase and toluidine blue covalently immobilized leak-free sol-gel composite biosensor for hydrogen peroxide.

Materials science & engineering. C, Materials for biological applications 2017 Thenmozhi K, Narayanan SS

本文报道了一种基于共价固定辣根过氧化物酶(HRP)和甲苯胺蓝(TB)的无泄漏溶胶-凝胶复合生物传感器,用于过氧化氢(H2O2)的安培检测。HRP与TB通过戊二醛交联剂共价连接到3-氨丙基三甲氧基硅烷(APTMOS)前驱体上,并与甲基三甲氧基硅烷(MTMOS)及石墨粉组成刚性陶瓷复合电极。循环伏安法在0.2至−0.4 V(vs SCE...