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Publication
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| Title of Article |
A new formaldehyde sensor from silver nanoclusters modified Tollens’ reagent |
| Date of Acceptance |
6 February 2018 |
| Journal |
| Title of Journal |
Food Chemistry |
| Standard |
ISI |
| Institute of Journal |
Elsevier |
| ISBN/ISSN |
https://doi.org/10.1016/j.foodchem.2018.02.030 |
| Volume |
2018 |
| Issue |
255 |
| Month |
February |
| Year of Publication |
2018 |
| Page |
41-48 |
| Abstract |
A selective colorimetric assay for detecting formaldehyde (FA) was proposed based on silver nanoclusters
(AgNCs) templated by polymethacrylic acid (PMAA). The chemodosimeter was easily fabricated by the formation
of Tollens’ reagent in the presence of AgNCs (AgNCs@Tollens). The detection principle was based on the
change in the color caused by the change in the particle size from nanoclusters (no LSPR) to nanoparticles (with
LSPR) upon the reduction of Tollens’ reagent by FA. In the presence of FA, the intensity of a new absorbance
band with a maximum at a wavelength of 430 nm corresponding to the LSPR of the AgNPs linearly increased as a
function of the FA concentration, exhibiting a color change that could be observed by the naked eye. This
method provided a working range of 30–50 μM with lower detection limit (LOD) of 27.99 μM. The proposed
method exhibited excellent selectivity towards FA over other aldehyde-containing compounds. |
| Keyword |
Silver nanoclusters, Colorimetric sensors, Chemical sensors, Tollens’ reagent, Surface plasmon resonance |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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