Silver triangular nanoplates: Synthesis and application as an analytical reagent in optical molecular spectroscopy. A review

Furletov, Aleksei A.; Apyari, V. V.; Zaytsev, Valeriy; Sarkisyan, A. S.; Дмитриенко, С. Г.

doi:10.1016/j.trac.2023.117202

Cited by 4 publications

(1 citation statement)

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“…The higher sensitivity of AgTNPs with respect to a number of analytes could play a decisive role in the development of new optical sensors for chemical analysis. In recent decades, AgTNPs have become increasingly used for the determination of metal ions and anions, as well as organic and inorganic compounds [ 25 ]. It should be noted that the most promising direction seems to be the use of AgTNPs for the determination of compounds without chromophore groups, such as organic thiols.…”

Section: Introductionmentioning

confidence: 99%

Solid-Phase Spectrometric Determination of Organic Thiols Using a Nanocomposite Based on Silver Triangular Nanoplates and Polyurethane Foam

Furletov,

Apyari,

Volkov

et al. 2023

Sensors

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Adsorption of silver nanoparticles on polymers may affect the processes in which they participate, adjusting the analytical characteristics of methods for the quantitation of various substances. In the present study, a composite material based on silver triangular nanoplates (AgTNPs) and polyurethane foam was proposed for chemical analysis. The prospects of its application for the solid-phase/colorimetric determination of organic thiols were substantiated. It was found that aggregation of AgTNPs upon the action of thiols is manifested by a decrease in the AgTNPs’ localized surface plasmon resonance band and its significant broadening. Spectral changes accompanying the process can be registered using household color-recording devices and even visually. Four thiols differing in their functional groups were tested. It was found that their limits of detection increase in the series cysteamine < 2-mercaptoethanol < cysteine = 3-mercaptopropionic acid and come to 50, 160, 500, and 500 nM, respectively. The applicability of the developed approach was demonstrated during the analysis of pharmaceuticals and food products.

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Section: Introductionmentioning

confidence: 99%