Functionalization of Silver Nanoparticles with Carbohydrate Derivative for Colorimetric Assay of Thiram

Dhavle, Vishal; Kateshiya, Mehul R.; Park, Tae Jung; Kailasa, Suresh Kumar

doi:10.1007/s11664-021-08875-y

Cited by 13 publications

(5 citation statements)

References 48 publications

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“…AgNPs possess high extinction coefficients and strongly localized surface plasmon resonances in the visible region, which are very sensitive to the size, shape, and surrounding chemical environment [ 15 ]. Thus, AgNPs functionalized with various molecules can be used as colorimetric sensors and have been successfully used for detecting various target pesticides [ 18 , 19 , 20 , 21 , 22 , 23 ]. The sensing principle depends on the dramatic color change by the aggregation of AgNPs.…”

Section: Introductionmentioning

confidence: 99%

“…The sensing principle depends on the dramatic color change by the aggregation of AgNPs. For instance, Hong et al [ 18 ] have designed colorimetric sensing of thiram using various surface capping agents, such as polyhexamethylene biguanide hydrochloride, polyvinylpyrrolidone, and borohydride ions on the AgNPs, with the LOD of 36 nM; and Dhavle et al [ 19 ] prepared glutathione-lactose functionalized AgNPs to detect thiram with the LOD of 3.0 nM. Su et al [ 20 ] have shown that fluorescein functionalized AgNPs for colorimetric detection of tricyclazole, and the LOD was down to 0.051 ppm.…”

Section: Introductionmentioning

confidence: 99%

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Sodium-Alginate-Functionalized Silver Nanoparticles for Colorimetric Detection of Dimethoate

Zhou

Chang

et al. 2022

Biosensors

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Sodium alginate (SA) was used to functionalize the surfaces of silver nanoparticles (AgNPs) to form SA-AgNPs for sensing dimethoate with a rapid and sensitive visual readout. UV–Vis spectrophotometry, Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and zeta potential measurements were used to characterize SA-AgNPs that were synthesized under the ideal conditions. SA-AgNPs were spherical with an average size of 14.6 nm. The stability of SA-AgNPs was investigated with changes in pH, salinity, and storage time. This colorimetric assay of dimethoate relied on the change in the absorption ratio (A475/A400) of SA-AgNPs, resulting in their aggregation caused by dimethoate, leading to a visual change for SA-AgNPs from yellow to pale yellow. As a result, the absorption ratio (A475/A400) of SA-AgNPs showed good linearity in the range of 0.05 to 2.0 ppm (R2 = 0.9986) with a limit of detection (LOD) of 30 ppb. Adding other pesticides did not significantly change the absorption ratio of SA-AgNPs, indicating its high selectivity as a colorimetric assay. The sensor was successfully used to detect dimethoate in actual water samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sodium-Alginate-Functionalized Silver Nanoparticles for Colorimetric Detection of Dimethoate

Zhou

Chang

et al. 2022

Biosensors

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“…Generally, molecules having a thiol group allow covalent bonding with the metal. 93,94 This functionalization prevents particle growth and aggregation. Recently, mono-(6-mercapto-6-deoxy)-β-cyclodextrin was added to a β-CD/Ag solution with stirring to yield the final β-CD-S-AgNPs.…”

Section: (C) (D)mentioning

confidence: 99%

An overview on the role of cyclodextrins in the synthesis of silver nanoparticles by chemical reduction

Gasbarri¹,

Angelini²

2022

Arkivoc

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The association between cyclodextrins (CDs) and silver nanoparticles (AgNPs) has been successfully exploited in a large number of applications. Generally, CDs act as stabilizers, however, their reactivity as reducing agents can be directly involved in the synthesis of AgNPs. Herein, the most recent results regarding AgNPs prepared by chemical reduction from native α-, β-and γ-cyclodextrins are reported. The behavior of CDs in host-guest inclusion complexes onto the metal surface, and the effects on the AgNPs properties have also been examined. Unlike β-CD/AgNPs and γ-CD/AgNPs, additional reducing agents were required for the investigated α-CD/AgNPs.

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“…AgNPs are well-known nanoparticles to be inexpensive colorimetric sensors (in comparison to AuNPs) owning to their ease of color visualization, size-shape-dependent features, strong spectral shifts, high SPR properties, biocompatibility, and long-term stability [ 39 , 40 ]. An AgNPs colorimetric assay typically involves the color change from “bright-yellow to red”, where the red color expresses the aggregation state [ 39 ]. In addition, the surface modification of the AgNPs can effectively enhance the detection performance.…”

Section: Introductionmentioning

confidence: 99%

In-situ preparation of norepinephrine-functionalized silver nanoparticles and application for colorimetric detection of tacrolimus in plasma samples

Golsanamlu

Soleymani

Gharekhani

et al. 2023

Heliyon

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Functionalization of Silver Nanoparticles with Carbohydrate Derivative for Colorimetric Assay of Thiram

Cited by 13 publications

References 48 publications

Sodium-Alginate-Functionalized Silver Nanoparticles for Colorimetric Detection of Dimethoate

Sodium-Alginate-Functionalized Silver Nanoparticles for Colorimetric Detection of Dimethoate

An overview on the role of cyclodextrins in the synthesis of silver nanoparticles by chemical reduction

In-situ preparation of norepinephrine-functionalized silver nanoparticles and application for colorimetric detection of tacrolimus in plasma samples

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