A biomimetic sensor for the detection of lead in water.

Chu,W, Zhang,Y, Li,D, Barrow,CJ, Wang,H and Yang,W 2015, A biomimetic sensor for the detection of lead in water., Biosensors and Bioelectronics, vol. 67, pp. 621-624, doi: 10.1016/j.bios.2014.09.077.

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Title A biomimetic sensor for the detection of lead in water.
Author(s) Chu,W
Barrow,CJORCID iD for Barrow,CJ orcid.org/0000-0002-2153-7267
Yang,WORCID iD for Yang,W orcid.org/0000-0001-8815-1951
Journal name Biosensors and Bioelectronics
Volume number 67
Start page 621
End page 624
Publisher Elsevier
Place of publication England
Publication date 2015-05
ISSN 1873-4235
Keyword(s) Colorimetric
Gold nanoparticle
Summary The monitoring of lead (II) ions (Pb(2+)) in water is essential for both human health and the environment. Herein, a simple yet innovative biosensor for Pb(2+) detection is presented. The sensor is developed by the self-assembly of gold nanoparticles (GNPs) core-satellite structure using naturally occurring tripeptide glutathione (GSH) as linker. The addition of Pb(2+) caused a red-to-blue color change and the localized surface plasmon resonance (LSPR) band was shifted to ca. 650nm. The limit of detection (LOD) is found to be 47.6nM (9.9ppb) by UV-vis spectroscopy with high selectivity against other heavy metals. This method offers a new strategy for heavy metal detection using functionalized GNPs.
Language eng
DOI 10.1016/j.bios.2014.09.077
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070042

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