Issue 46, 2011
From the journal:

Chemical Communications

Wash-free magnetic oligonucleotide probes-based NMR sensor for detecting the Hg ion†

Wenwei Ma,a   Changlong Hao,a   Wei Ma,a   Changrui Xing,a   Wenjing Yan,a   Hua Kuang,a   Libing Wang*ab  and  Chuanlai Xua  

* Corresponding authors

a School of Food Science & Technology, State Key Lab of Food Science and Technology, Jiangnan University, Wuxi Jiangsu, P. R. China
E-mail: wanglb@hnciq.gov.cn

b Hunan Entry-Exit Inspection and Quarantine Bureau, Changsha, P. R. China

Abstract

An easily applied and sensitive sensor for the detection of heavy metal ion residues based entirely on magnetic nanoparticle and oligonucleotide was developed. The tool is established on the relaxation of magnetic nanoparticles with different dispersion states. The target analyte, Hg ions, induce the aggregation of the MNP oligonucleotide probes. Accordingly, the light produced by the magnetic relaxation image and the transverse relaxation time (T2) all change due to the effect of the aggregation. The limit of qualitative detection of the sensor is 0.15 ppt. The recoveries from test samples range between 97.1–101.8%. Using the nuclear resonance instrument, the method is a high throughput and sensitive sensor.

Graphical abstract: Wash-free magnetic oligonucleotide probes-based NMR sensor for detecting the Hg ion

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C1CC15967D
Article type
Communication
Submitted
26 Sep 2011
Accepted
07 Oct 2011
First published
25 Oct 2011

Chem. Commun., 2011,47, 12503-12505

Permissions

Request permissions

Wash-free magnetic oligonucleotide probes-based NMR sensor for detecting the Hg ion

W. Ma, C. Hao, W. Ma, C. Xing, W. Yan, H. Kuang, L. Wang and C. Xu, Chem. Commun., 2011, 47, 12503 DOI: 10.1039/C1CC15967D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements