A multicolor colorimetric assay for sensitive detection of sulfide ions based on anti-etching of triangular gold nanoplates

Wang, Qian; Wang, Yishan; Guan, Mengting; Zhu, Shouzhe; Yan, Xiaoxia; Lei, Yunyi; Shen, Xiaoshuang; Luo, Liqiang; He, Haibo

doi:10.1016/j.microc.2020.105429

Cited by 14 publications

(2 citation statements)

References 42 publications

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“…The sensor showed a linear response in the sulfide concentration range from 0.02 to 1.5 µM, with a LOD of about 16 nM. The good results obtained by applying the method to natural water samples make it promising for sulfide analyses of environmental matrices [114].…”

Section: Colorimetric Sensors Based On Aunp Anti-etchingmentioning

confidence: 91%

Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications

et al. 2021

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Gold and Silver nanoparticles (AuNPs and AgNPs) are perfect platforms for developing sensing colorimetric devices thanks to their high surface to volume ratio and distinctive optical properties, particularly sensitive to changes in the surrounding environment. These characteristics ensure high sensitivity in colorimetric devices. Au and Ag nanoparticles can be capped with suitable molecules that can act as specific analyte receptors, so highly selective sensors can be obtained. This review aims to highlight the principal strategies developed during the last decade concerning the preparation of Au and Ag nanoparticle-based colorimetric sensors, with particular attention to environmental and health monitoring applications.

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Section: Colorimetric Sensors Based On Aunp Anti-etchingmentioning

confidence: 91%

Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications

et al. 2021

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“…Therefore, it is necessary to develop simple, efficient, and faster methods with a high level of sensitivity and selectivity. The colorimetric chemosensor is the most often used to detect anions through color changes [9]. Visually, the detection process is more profitable because it can provide qualitative and quantitative information in a relatively short time [10], and it is possible to be seen directly with the naked eye.…”

Section: ■ Introductionmentioning

confidence: 99%

Colorimetric Chemosensor for Sulfide Anion Detection Based on Symmetrical Nitrovanillin Azine

2022

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The nitrovanillin azine (NA) has been successfully synthesized and examined as a colorimetric chemosensor for sulfide anion detection. The NA was synthesized using two steps reaction. Vanillin was reacted with concentrated nitric acid to form 5-nitrovanillin (NV) then the NV was condensed with hydrazine hydrate to produce the NA. The NA was obtained and fully elucidated by FTIR, 1H-NMR, 13C-NMR, and GC-MS spectrometer. The NA activity for anionic chemosensor was then carried out on several anions such as F⁻, Cl⁻, Br⁻, I⁻, S2⁻, CN⁻, HCO3⁻, AcO⁻, H2PO4⁻, N3⁻, NO2⁻, SCN⁻, ClO3⁻, and NO3⁻. The chemosensor tests showed NA was only selective for S2− in DMF:HEPES buffer (9:1, v/v, 10 mM, pH = 7.4) giving color change from light yellow to dark green. The LOD value was 1.43 × 10−5 M and the interaction model of NA-S2− indicated deprotonation mode between the -OH group with sulfide anion in a ratio of 1:1. The NA chemosensor can be applied for qualitatively analysis of sulfide anion using filter paper strips and quantitatively analysis of sulfide anion in tap water.

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A FRET Fluorescent Sensor for Ratiometric and Visual Detection of Sulfide Based on Carbon Dots and Silver Nanoclusters

et al. 2022

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A multicolor colorimetric assay for sensitive detection of sulfide ions based on anti-etching of triangular gold nanoplates

Cited by 14 publications

References 42 publications

Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications

Gold and Silver Nanoparticle-Based Colorimetric Sensors: New Trends and Applications

Colorimetric Chemosensor for Sulfide Anion Detection Based on Symmetrical Nitrovanillin Azine

A FRET Fluorescent Sensor for Ratiometric and Visual Detection of Sulfide Based on Carbon Dots and Silver Nanoclusters

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