A biomimetic sensor for the detection of lead in water.
Data(s) |
01/05/2015
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Resumo |
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. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier |
Relação |
http://dro.deakin.edu.au/eserv/DU:30070042/t041834-chu-abiomimetic-2015.pdf http://www.dx.doi.org/10.1016/j.bios.2014.09.077 http://www.ncbi.nlm.nih.gov/pubmed/25449876 |
Direitos |
2015, Elsevier |
Palavras-Chave | #Colorimetric #Core–satellite #Glutathione #Gold nanoparticle #Lead #Self-assembly #Core-satellite |
Tipo |
Journal Article |