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
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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
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发表时间:
2019-02
期刊:
影响因子:
--
通讯作者:
Jiang Zhiliang
中科院分区:
文献类型:
--
作者:
Li Chongning;Peng Yutao;Wang Haidong;Liang Aihui;Jiang Zhiliang
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.
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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
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
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
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