dc.contributor.author |
Kiatkumjorn T. |
|
dc.contributor.author |
Rattanarat P. |
|
dc.contributor.author |
Siangproh W. |
|
dc.contributor.author |
Chailapakul O. |
|
dc.contributor.author |
Praphairaksit N. |
|
dc.date.accessioned |
2021-04-05T03:32:27Z |
|
dc.date.available |
2021-04-05T03:32:27Z |
|
dc.date.issued |
2014 |
|
dc.identifier.issn |
399140 |
|
dc.identifier.other |
2-s2.0-84901462926 |
|
dc.identifier.uri |
https://ir.swu.ac.th/jspui/handle/123456789/13811 |
|
dc.identifier.uri |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901462926&doi=10.1016%2fj.talanta.2014.04.085&partnerID=40&md5=36d7e18cfc03802ed29515bb3b079a02 |
|
dc.description.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. |
|
dc.subject |
Amino acids |
|
dc.subject |
Automobile manufacture |
|
dc.subject |
Color |
|
dc.subject |
Colorimetry |
|
dc.subject |
High resolution transmission electron microscopy |
|
dc.subject |
Metal ions |
|
dc.subject |
Nanostructures |
|
dc.subject |
Nickel |
|
dc.subject |
Peptides |
|
dc.subject |
Self assembly |
|
dc.subject |
Silver |
|
dc.subject |
Transmission electron microscopy |
|
dc.subject |
Ultraviolet visible spectroscopy |
|
dc.subject |
Colorimetric assays |
|
dc.subject |
Glutathiones |
|
dc.subject |
L-cysteine |
|
dc.subject |
Nickel ions |
|
dc.subject |
Silver nanoplates |
|
dc.subject |
Fourier transform infrared spectroscopy |
|
dc.subject |
cysteine |
|
dc.subject |
glutathione |
|
dc.subject |
metal nanoparticle |
|
dc.subject |
nickel |
|
dc.subject |
silver |
|
dc.subject |
chemistry |
|
dc.subject |
colorimetry |
|
dc.subject |
environmental monitoring |
|
dc.subject |
infrared spectroscopy |
|
dc.subject |
pH |
|
dc.subject |
procedures |
|
dc.subject |
reproducibility |
|
dc.subject |
transmission electron microscopy |
|
dc.subject |
ultrastructure |
|
dc.subject |
Colorimetry |
|
dc.subject |
Cysteine |
|
dc.subject |
Environmental Monitoring |
|
dc.subject |
Glutathione |
|
dc.subject |
Hydrogen-Ion Concentration |
|
dc.subject |
Metal Nanoparticles |
|
dc.subject |
Microscopy, Electron, Transmission |
|
dc.subject |
Nickel |
|
dc.subject |
Reproducibility of Results |
|
dc.subject |
Silver |
|
dc.subject |
Spectroscopy, Fourier Transform Infrared |
|
dc.title |
Glutathione and l-cysteine modified silver nanoplates-based colorimetric assay for a simple, fast, sensitive and selective determination of nickel |
|
dc.type |
Article |
|
dc.rights.holder |
Scopus |
|
dc.identifier.bibliograpycitation |
Talanta. Vol 128, (2014), p.215-220 |
|
dc.identifier.doi |
10.1016/j.talanta.2014.04.085 |
|