A nanosol SERS method for quantitative analysis of trace potassium based on aptamer recognition and silver nanorod catalysis of Ag(I)-glucose reaction

A nanosol SERS method for quantitative analysis of trace potassium based on aptamer recognition and silver nanorod catalysis of Ag(I)-glucose reaction
复制标题

基于适体识别和银纳米棒催化Ag(I)-葡萄糖反应的纳米溶胶SERS定量分析方法

DOI:
10.1016/j.snb.2018.10.079
复制
发表时间:
2019-02
期刊:
Sensors and Actuators B: Chemical
影响因子:
--
通讯作者:
Jiang Zhiliang
Jiang Zhiliang
中科院分区:
其他
文献类型:
--
作者:
Li Chongning;Peng Yutao;Wang Haidong;Liang Aihui;Jiang Zhiliang

文献摘要

参考文献

被引文献

相似文献

在维多利亚蓝B(VBB)分子探针存在下,银纳米棒(AgNR)对AgNO3与葡萄糖(GLC)之间的氧化还原反应有很强的催化作用,形成具有强纳米等离子体效应的银纳米颗粒(AgNP),包括表面等离子体共振(SPR)吸收(RRS)和表面增强共振拉曼散射(SERS)。在1615cmAgNr处增强的表面增强拉曼散射强度与−浓度呈线性关系。钾离子适配子(APT)可以吸附在AgNR表面,从而抑制纳米催化。加入K+后,形成的稳定的K-APT的G-四链从AgNR的纳米表面逸出,恢复其催化作用。随着K+浓度的增加,由于产生更多的AgNP底物,SERS强度线性增加。因此,用表面增强拉曼光谱技术可以定量分析50-3000nmoL/L K,检出限为25n /L。
Silver nanorods (AgNR) have strong catalysis of the redox reation between AgNO3and glucose (GLC) to form silver nanoparticles (AgNP) with strong nanoplasmonic effect including surface plasmon resonance (SPR) absorption (RRS) and surface-enhanced resonance Raman scattering (SERS) in the presence of Victoria blue B(VBB) molecular probes. The increased SERS intensity at 1615 cm−1responds linearly with the AgNR concentration. The potassium ion aptamers (Apt) can adsorb on the surface of AgNR to inhibit the nanocatalysis. Upon addition of K+, the formed stable G-quadruplex of K-Apt escape from the nanosurface of AgNR to recovery its catalysis. With the increase of K+concentration, the SERS intensity increased linearly due to producing more AgNP substrates. Thus, a 50–3000 nmol/L K can be analyzed quantitatively by SERS technique, with a detection limit of 25 nmol/L.
DOI: 10.1039/c4an01079e
发表时间: 2015-01-21
期刊: The Analyst
影响因子: --
作者:
Li M;Cushing SK;Wu N
通讯作者: Wu N
DOI: 10.1021/ac00081a034
发表时间: 1994-04
影响因子: 7.4
作者:
J. Heyns;L. M. Sears;Robert C. Corcoran;K. Carron
通讯作者: J. Heyns;L. M. Sears;Robert C. Corcoran;K. Carron
DOI: 10.1016/j.bios.2016.05.100
发表时间: 2016-12
影响因子: 12.6
作者:
Lisha Zhang;R. Huang;Weipeng Liu;Hongxing Liu;Xiaoming Zhou;D. Xing
通讯作者: Lisha Zhang;R. Huang;Weipeng Liu;Hongxing Liu;Xiaoming Zhou;D. Xing
DOI: 10.1016/j.bios.2014.08.078
发表时间: 2015-02-15
影响因子: 12.6
作者:
Jiang, Xin;Sun, Cuiji;Xu, Li
通讯作者: Xu, Li
DOI: --
发表时间: 2004
期刊: Chinese Journal of Spectroscopy Laboratory
影响因子: --
作者:
Lin Hong
通讯作者: Lin Hong