Urine for Plasmonic Nanoparticle-Based Colorimetric Detection of Mercury Ion

Urine for Plasmonic Nanoparticle-Based Colorimetric Detection of Mercury Ion

Urine for diagnostics: Urine, a “green” natural product, is used as an active component to produce a simple, inexpensive, and portable colorimetric Hg2+ sensing assay with high selectivity and sensitivity by simply mixing gold nanoparticles (AuNPs) and urine. The synergetic effect of uric acid and c...

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Veröffentlicht in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2013-12, Vol.9 (24), p.4104-4111
Hauptverfasser: Du, Jianjun, Zhu, Bowen, Chen, Xiaodong
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Agglomeration
colorimetry
Colorimetry - methods
Creatinine - chemistry
Gold - chemistry
Green Chemistry Technology
Hg2+ detection
Humans
Ions
Mercury - analysis
Mercury - chemistry
Metal Nanoparticles - chemistry
Nanoparticles - chemistry
Nanotechnology
Nanotechnology - methods
plasmonic nanoparticles
Spectrophotometry
Static Electricity
Uric Acid - chemistry
Urinalysis - methods
urine
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Beschreibung
Zusammenfassung:Urine for diagnostics: Urine, a “green” natural product, is used as an active component to produce a simple, inexpensive, and portable colorimetric Hg2+ sensing assay with high selectivity and sensitivity by simply mixing gold nanoparticles (AuNPs) and urine. The synergetic effect of uric acid and creatinine decorated on AuNPs is the reason for selective binding of Hg2+, leading to the aggregation of gold nanoparticles and thereby causing a visible color change.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201300593