2 条结果 关键词:银增强 ×

An aptamer-based quartz crystal microbalance biosensor for sensitive and selective detection of leukemia cells using silver-enhanced gold nanoparticle label.

Talanta 2014 Shan W, Pan Y, Fang H, Guo M 等 7 人

本文报道了一种基于适配体的石英晶体微天平(QCM)生物传感器,用于白血病细胞的选择性和灵敏检测。该策略中,氨基苯基硼酸修饰的金纳米颗粒(APBA-AuNPs)能够结合细胞膜,用于标记细胞,随后进行银增强,从而实现显著信号放大。具体而言,硫醇修饰适配体sgc8c自组装于QCM金电极表面,特异性捕获CCRF-CEM白血病细胞;APBA-...

Signal amplification for thrombin impedimetric aptasensor: sandwich protocol and use of gold-streptavidin nanoparticles.

Biosensors & bioelectronics 2014 Ocaña C, del Valle M

本文报道了一种基于链霉亲和素金纳米颗粒(strep-AuNPs)和银还原增强的高特异性信号放大策略,用于凝血酶(thrombin, Thr)的超灵敏生物传感。生物素化凝血酶适配体AptThrBio1通过avidin–biotin亲和作用固定在avidin-石墨环氧复合电极(AvGEC)表面,在含铁氰化钾/亚铁氰化钾(K3[Fe(CN...