Publication:
Glutathione and l-cysteine modified silver nanoplates-based colorimetric assay for a simple, fast, sensitive and selective determination of nickel

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Issued Date

2014

Resource Type

Article

File Type

application/pdf

ISSN

399140

DOI

10.1016/j.talanta.2014.04.085

Other identifier(s)

2-s2.0-84901462926

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Talanta. Vol 128, (2014), p.215-220

Suggested Citation

Kiatkumjorn T., Rattanarat P., Siangproh W., Chailapakul O., Praphairaksit N. Glutathione and l-cysteine modified silver nanoplates-based colorimetric assay for a simple, fast, sensitive and selective determination of nickel. Talanta. Vol 128, (2014), p.215-220. doi:10.1016/j.talanta.2014.04.085 Retrieved from: https://hdl.handle.net/20.500.14740/6329

Title

Glutathione and l-cysteine modified silver nanoplates-based colorimetric assay for a simple, fast, sensitive and selective determination of nickel

Author(s)

Kiatkumjorn T.
 Rattanarat P.
 Siangproh W.
 Chailapakul O.
 Praphairaksit N.

Abstract

A novel colorimetric assay based on silver nanoplates (AgNPls) for detecting nickel ions (Ni2+) has been developed. Glutathione (GSH) and l-cysteine (Cys) were used to modify the AgNPls surface, exhibiting extremely high selectivity towards Ni2+ over other metal ions under specific conditions. Upon addition of Ni2+ to the modified AgNPls solution, a distinctive color change can be clearly observed by naked eyes as a result of the aggregation of AgNPls induced by the binding between Ni 2+ and the modified ligands. To verify a complete self-assembly of the GSH and Cys onto AgNPls surface, the modified AgNPls were characterized using Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-vis) and transmission electron microscopy (TEM), respectively. Moreover, various parameters affecting the Ni2+ quantification including the modifier ratio, pH, reaction time, and interferences were investigated. With UV-vis spectrophotometric measurement under optimal conditions, a quantitative linearity was established in the range of 10-150 ppb (R2=0.9971) with the detection limit of 7.02 ppb or 120 nM (S/N=3). In addition, the developed sensor was applied to the determination of Ni 2+ in waste samples from a jewelry factory and a car manufacturer with satisfactory results. Overall, this alternative approach presents a simple, rapid, sensitive and selective detection of Ni2+. © 2014 Elsevier B.V.

Subject(s)

Amino acids
 Automobile manufacture
 Color
 Colorimetry
 High resolution transmission electron microscopy
 Metal ions
 Nanostructures
 Nickel
 Peptides
 Self assembly
 Silver
 Transmission electron microscopy
 Ultraviolet visible spectroscopy
 Colorimetric assays
 Glutathiones
 L-cysteine
 Nickel ions
 Silver nanoplates
 Fourier transform infrared spectroscopy
 Cysteine
 Glutathione
 Metal nanoparticle
 Nickel
 Silver
 Chemistry
 Colorimetry
 Environmental monitoring
 Infrared spectroscopy
 PH
 Procedures
 Reproducibility
 Transmission electron microscopy
 Ultrastructure
 Colorimetry
 Cysteine
 Environmental Monitoring
 Glutathione
 Hydrogen-Ion Concentration
 Metal Nanoparticles
 Microscopy, Electron, Transmission
 Nickel
 Reproducibility of Results
 Silver
 Spectroscopy, Fourier Transform Infrared

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URI

https://hdl.handle.net/20.500.14740/6329

Collections

Scopus: Year 1983-2021

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