63 条结果 关键词:比色传感 ×

A novel calix[4]arene thiol functionalized silver nanoprobe for selective recognition of ferric ion with nanomolar sensitivity via DLS selectivity in human biological fluid.

Nanoscale 2013 Pandya A, Sutariya PG, Lodha A, Menon SK

针对过渡金属离子尤其是三价铁离子(Fe3+)在人体生物流体中痕量检测的需求,本文报道了一种基于杯[4]芳烃硫醇功能化银纳米探针的高选择性、超灵敏 Fe3+ 识别方法。作者采用微波辅助法合成银纳米颗粒(AgNPs),并用 p-磺酸基-25,27-双(三乙氧基三乙硫基)-26,28-二乙氧基杯[4]芳烃(p-STEC4)通过 Ag–S ...

Ultrasensitive aptamer biosensor for arsenic(III) detection in aqueous solution based on surfactant-induced aggregation of gold nanoparticles.

The Analyst 2012 Wu Y, Liu L, Zhan S, Wang F 等 5 人

本文报道了一种基于表面活性剂诱导金纳米颗粒(AuNPs)聚集的比色与共振散射(RS)生物传感器,用于水溶液中三价砷(As(III))的超灵敏检测。该体系利用砷结合适配体(Ars-3 aptamer)、As(III) 与阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)之间的特殊相互作用。无 As(III) 时,适配体与 CTAB 组装...

Iron phosphate microflowers as peroxidase mimic and superoxide dismutase mimic for biocatalysis and biosensing.

Chemical communications (Cambridge, England) 2012 Wang W, Jiang X, Chen K

本文报道一种简便方法制备磷酸铁(FePOs)微花,XRD显示其含Na4.55Fe(PO4)2·H0.45O与FeH3P2O8·H2O两相,SEM显示由直径80–100 nm的纳米棒组装成花状结构。FePOs微花具有过氧化物酶模拟活性,可催化H2O2氧化无色3,3',5,5'-四甲基联苯胺(TMB)生成蓝色产物,650 nm吸光度在1...