A self-assembling RNA aptamer-based nanoparticle sensor for fluorometric detection of Neomycin B in milk
A self-assembling RNA aptamer-based nanoparticle sensor for fluorometric detection of Neomycin B in milk
复制标题
基于自组装 RNA 适体的纳米颗粒传感器用于牛奶中新霉素 B 的荧光检测
DOI:
10.1007/s00216-016-9441-z
复制
发表时间:
2016-03
影响因子:
4.3
通讯作者:
Li Fu-Rong
中科院分区:
文献类型:
--
作者:
Ling Kai;Jiang Hongyan;Zhang Linlin;Li Yang;Yang Lu;Qiu Chen;Li Fu-Rong
To date, there are few reports regarding the development of RNA aptamer-based biosensors for the detection of small molecules. The possible reason is attributed to the weak nuclease resistance of RNA in biological environments. In this study, we have developed an RNA aptamer-based gold nanoparticle (AuNP) sensor for fluorometric detection of Neomycin B in milk. This aptasensor depends on the self-assembly of the RNA aptamer/Neomycin B complex and fluorescence quenching by AuNPs. This biosensor exhibited a low detection limit of 0.01 μM, with a linear dynamic range from 0.1 to 10 μM in milk, and a good selectivity toward Neomycin B. Specifically, because of the shorter RNA fragments and the nuclease inhibition ability of the RNA-modified AuNPs, the RNA sequences remained stable during the experiments. This work will serve as an example for the development of novel biosensors based on RNA aptamers.Graphical AbstractAn RNA aptamer-based nanoparticle sensor, developed for the detection of Neomycin B in milk, shows high binding affinity and selectivity. This aptasensor depends on the self-assembly of the aptamer/ligand complex and fluorescence quenching by gold nanoparticles (AuNPs). Because of the shorter RNA fragments and the nuclease inhibition ability of RNA-modified AuNPs, RNA sequences remain stable during the detection.
登录
查看更多内容
DOI:
10.1021/la400617u
发表时间:
2013-05
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Xu Zhang;Biwu Liu;M. Servos;Juewen Liu
通讯作者:
Xu Zhang;Biwu Liu;M. Servos;Juewen Liu
影响因子:
62.1
作者:
Liu, Juewen;Cao, Zehui;Lu, Yi
通讯作者:
Lu, Yi
影响因子:
64.8
作者:
Frazao, Carlos;McVey, Colin E.;Carrondo, Maria A.
通讯作者:
Carrondo, Maria A.
DOI:
10.1016/j.bbrc.2012.01.127
发表时间:
2012-03-02
影响因子:
3.1
作者:
Foerster, Charlotte;Zydek, Martin;Fuerste, Jens P.
通讯作者:
Fuerste, Jens P.
影响因子:
--
作者:
WALLIS, MG;VONAHSEN, U;FAMULOK, M
通讯作者:
FAMULOK, M