3 条结果 关键词:铜纳米颗粒 ×

Phosphomolybdic acid functionalized graphene loading copper nanoparticles modified electrodes for non-enzymatic electrochemical sensing of glucose.

Analytica chimica acta 2016 Xu J, Cao X, Xia J, Gong S 等 6 人

本文报道了一种基于铜纳米颗粒(CuNPs)与磷钼酸功能化石墨烯(PMo12-GR)的非酶葡萄糖电化学传感器(Cu/PMo12-GR/GCE)。首先以聚二烯丙基二甲基氯化铵(PDDA)为辅助,通过静电自组装将 PMo12-GR 薄膜修饰在玻璃碳电极(GCE)表面;随后在 -0.40 V 下电沉积 CuNPs,得到 Cu/PMo12-G...

A label-free and enzyme-free ultra-sensitive transcription factors biosensor using DNA-templated copper nanoparticles as fluorescent indicator and hairpin DNA cascade reaction as signal amplifier.

Biosensors & bioelectronics 2016 Sha L, Zhang X, Wang G

本文报道了一种无标记、无酶的超灵敏转录因子荧光生物传感器,用于检测核因子κB p50(NF-κB p50)。该传感器以富含AT的双链DNA模板铜纳米颗粒(AT-rich ds DNA/Cu NPs)作为荧光指示剂,以发夹DNA级联反应(HDCA)作为信号放大器。体系中,含NF-κB p50特异性结合序列的双链DNA与单链触发DNA(...

Multifunctional Dumbbell-Shaped DNA-Templated Selective Formation of Fluorescent Silver Nanoclusters or Copper Nanoparticles for Sensitive Detection of Biomolecules.

ACS applied materials & interfaces 2016 Chen J, Ji X, Tinnefeld P, He Z

本文提出一种多功能哑铃形DNA模板,可选择性形成荧光银纳米团簇(AgNCs)或铜纳米颗粒(CuNPs)。该DS DNA由两个胞嘧啶发夹环和富含腺嘌呤-胸腺嘧啶碱基对的双螺旋茎构成,发夹环封闭茎端;胞嘧啶环作为AgNCs生长的特异性区域,双螺旋茎作为CuNPs形成的模板。通过系统优化序列与长度,确定了最佳模板设计。基于该模板,作者建立...