Colorimetric and bare-eye determination of fluoride using gold nanoparticle agglomeration probes

Gu, Jiun-An; Lin, Yu‐Jen; Chia, Yu-Ming; Lin, Hsin-Yi; Huang, Sheng‐Tung

doi:10.1007/s00604-013-0972-0

Cited by 50 publications

(16 citation statements)

References 32 publications

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“…They reported an interesting discrimination between short (24 bp) single strength DNA (ssDNA) and double strength DNA (dsDNA) based on electrostatic interactions. Based on this study, the complex Au-NPs / DNA aptamers was investigated as colorimetric probe for ions [16,24,25], small molecules [26][27][28][29] or proteins.…”

Section: Introductionmentioning

confidence: 99%

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Gold nanoparticles for the bare-eye based and spectrophotometric detection of proteins, polynucleotides and DNA

et al. 2014

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We have explored the potential of using gold nanoparticles (Au-NPs) in optical and bare-eye discrimination of (a) proteins (such as bovine serum albumin and lysozyme), (b) homo-polynucleotides (such as poly-adenylic acid, polycytidylic acid, poly-uridylic acid and poly-inosinic acid), and (c) long chain DNA (from salmon, herring and thym). Such biomacromolecules can be detected and discriminated due to their ability to prevent the formation of blue aggregates from red (non-aggregated) citrate capped Au-NPs on addition of NaCl. The effect of these biomacromolecules on the aggregation was investigated by colorimetry and UV-vis spectrometry. The results show that the two proteins can be differentiated by colorimetry, and also salmon ssDNA and dsDNA. The AuNPs can also discriminate the dsDNAs of salmon and herring. We conclude that the use of Au-NPs represent a viable candidate to future methods of DNA analysis on the basis of visual testing, particularly in the area of food analysis.

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Section: Introductionmentioning

confidence: 99%

“…This phenomenon is easily observable at bare eye since the color of the solution changes from red to blue. [16] In addition, AuNPs are able to strongly interact with biomacromolecules (DNA [17], polynucleotide [18] and protein [19]). Regarding that property, they were investigated as biosensor.…”

Section: Introductionmentioning

confidence: 99%

Gold nanoparticles for the bare-eye based and spectrophotometric detection of proteins, polynucleotides and DNA

et al. 2014

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“…Notably, the LOD of HNA for detecting F − is much lower than the limit value in pollutant level for the detection of F − (210 μM) proposed by the US Environmental Protection Agency (EPA) [39]. Some reported chemosensors for the detection of F − have been compared with HNA in Table 1 [40][41][42][43][44]. Finally, Job's plot has been introduced to investigate the stoichiometric proportion of HNA and F − .…”

Section: Colorimetric Experimentsmentioning

confidence: 99%

A Naked-Eye Visible Colorimetric and Ratiometric Chemosensor Based on Schiff Base for Fluoride Anion Detection

Yang

Liu

et al. 2020

Preprint

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A dual-platform colorimetric and ratiometric chemosensor, namely 6-(2-hydroxynaphthalen)-N-n-butyl-naphthalimide (HNA), based on Schiff base constructed from N-n-butyl-4-amino-1,8-naphthalimide and 2-hydroxy-1-naphthaldehyde has been designed and fabricated for detecting fluoride anion (F−) in DMSO solution. HNA is a colorimetic and ratiometric probe with superior selectivity and sensitivity. The color changes of HNA from yellow to purple was observed by the naked eyes in the presence of F−. The absorbance in the UV-Vis spectra of HNA was decreasing in 422 nm, while gradually increasing in 583 nm by adding F−. The limit of detection (LOD) of HNA for detecting F− is low to 0.61 μM and the binding model of HNA and F− is in 3:2 stoichiometry. Meanwhile, HNA can be used to detect F− in real samples. Finally, the mechanism of HNA for the detection of F− was investigated. The present work indicated that HNA would be a superior potential chemosensor in monitoring F− selectively and sensitively.

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“…These materials have been explored in many different applications, including uses in electronics, nano appliances, biotechnology, and medicine, and also in the textile industry [5][6] . Silver nanoparticles are the most appealing and demandable exploration in the field of nanotechnology [7][8][9] . Silver nanoparticles have the certain unique properties such as highly stablility, good conductivity, and catalytic activity with localised surface plasma resonance.…”

Section: Introductionmentioning

confidence: 99%

Cost Effective Purification of Tannery Waste Water Using Biosynthesized Silver Nanoparticles

Arputharaj

Anbarasu²

2021

Orient. J. Chem

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The nanotechnology has reached a greater extent of the research and now it is considered as the best source of alternative in the present world. Nowadays, the contaminants present in the water should be very difficult to remove and it leads to several health issues. It is the primary requisite to know about the different physico-chemical parameters to check the quality of water. Currently, the nanotechnology has been the emerging technology and the green synthesis is acclimating to eco-friendly, non-toxic and this method reduces the pollution. This biological approach is undertaken to diminish toxicity and to reduce pollution. In these current studies, the silver nanoparticles can be synthesized from chrysopogan zizanioides root extract. The synthesised silver nanoparticles were characterized by UV-Vis, TEM, physical and chemical parameters of water quality. The synthesised silver nanoparticles were used to reduce the chemical effluents. The outcome of the synthesis silver nanoparticles is using the vital route of wastewater treatment and also effectively reduces the water contaminations.

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Colorimetric and bare-eye determination of fluoride using gold nanoparticle agglomeration probes

Cited by 50 publications

References 32 publications

Gold nanoparticles for the bare-eye based and spectrophotometric detection of proteins, polynucleotides and DNA

Gold nanoparticles for the bare-eye based and spectrophotometric detection of proteins, polynucleotides and DNA

A Naked-Eye Visible Colorimetric and Ratiometric Chemosensor Based on Schiff Base for Fluoride Anion Detection

Cost Effective Purification of Tannery Waste Water Using Biosynthesized Silver Nanoparticles

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