Visual detection of arginine, histidine and lysine using quercetin-functionalized gold nanoparticles

Rawat, Karuna A.; Kailasa, Suresh Kumar

doi:10.1007/s00604-014-1294-6

Cited by 95 publications

(35 citation statements)

References 35 publications

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“…[30] In optimal conditions, a linear relationship exists between the absorption ratios at different wavelengths (A 702 / Figure 8. Indeed, quercetin-AuNPs aggregation caused by amino acids leads to a color change from red to blue.…”

Section: Coralynementioning

confidence: 99%

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A Review of Gold and Silver Nanoparticle‐Based Colorimetric Sensing Assays

et al. 2017

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The nanoparticle colorimetric-based methods have been extensively used for rapid detection, however there are few limitations which can be kept under control or avoided by understanding the crucial parameters involved in these reactions. This review addresses the main parameters that influence colorimetric-based methods and provides a rational classification of the current approaches, by focusing particularly on gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs). The AgNP and AuNP-based colorimetric assays can be very efficient and sensitive especially for biomolecule identification and for metal ion detection in environmental screening. Specifically, this review highlights the detection of metal ions through their coordination with nanoparticle stabilizing ligands. The review also addresses various approaches based on label-free aptasensors to better understand their role as smart colorimetric sensing devices.

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Section: Coralynementioning

confidence: 99%

“…[30] Siddhartha and Debabrata [5h] reported that protein estimation is within a LOD of 10-80 mg mL À1 using unmodified AgNPs. [30] Siddhartha and Debabrata [5h] reported that protein estimation is within a LOD of 10-80 mg mL À1 using unmodified AgNPs.…”

Section: Coralynementioning

confidence: 99%

A Review of Gold and Silver Nanoparticle‐Based Colorimetric Sensing Assays

et al. 2017

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“…The most employed principle of such sensors operation consists in aggregation of AuNPs in solution which leads to change in the surface plasmon resonance (SPR) properties of AuNPs and, as a consequence, optical spectra and color of the solution [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Towards the development of solid-state platform optical sensors: aggregation of gold nanoparticles on polyurethane foam

Apyari

Arkhipova

Gorbunova

et al. 2016

Talanta

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“…As a result, the particles size and shape of Au NPs were drastically changed due to the shift in plasmon band and combination of plasmons, resulting a distinct color change of Au NPs solutions, which makes them to act as probes in the development of effective sensing systems [17]. In the past few years, Au NPs have been successfully integrated with UV-visible spectrometric methods for the sensitive and selective detection of various analytes such as cations [18], anions [19], pesticides [20], biomolecules [21] and drugs [22] with improved detection limits. However, limited reports have been demonstrated the use of organic framework on Au and Ag NPs for the selective and sensitive detection of Cd 2+ ion in various environmental and biological samples.…”

Section: Introductionmentioning

confidence: 99%