Picomolar detection of mercuric ions by means of gold-silver core-shell nanorods

Picomolar detection of mercuric ions by means of gold-silver core-shell nanorods

We report an ultrasensitive and selective probe for detection of mercuric ions using gold-silver core-shell nanorods as the substrate of surface-enhanced Raman scattering. The detection limit of this probe for mercuric ions can be as low as 1 pM. The efficiency of this probe in complex samples was e...

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Veröffentlicht in:Nanoscale 2013-01, Vol.5 (15), p.6731-6735
Hauptverfasser: Chen, Shouhui, Liu, Dingbin, Wang, Zhihua, Sun, Xiaolian, Cui, Daxiang, Chen, Xiaoyuan
Format: Artikel
Sprache:eng
Schlagworte:
Fish
Nanocomposites
Nanomaterials
Nanorods
Nanostructure
Raman scattering
Rivers
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Zusammenfassung:We report an ultrasensitive and selective probe for detection of mercuric ions using gold-silver core-shell nanorods as the substrate of surface-enhanced Raman scattering. The detection limit of this probe for mercuric ions can be as low as 1 pM. The efficiency of this probe in complex samples was evaluated by allowing detection of spiked mercuric ions in river water and fish samples.
ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr01603j