Gold Nanoparticle-Based Colorimetric Strategies for Chemical and Biological Sensing Applications.
Chia-Chen Chang,Chie Pein Chen,Tzu Heng Wu,Ching Hsu Yang,Chii-Wann Lin,Chii-Wann Lin,Chen-Yu Chen +6 more
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TLDR
This review focuses on the current developments in different colorimetric assay designs for the sensing of various chemical and biological samples and classify the sensing strategies and mechanism analyses of gold nanoparticle-based detection.Abstract:
Gold nanoparticles are popularly used in biological and chemical sensors and their applications owing to their fascinating chemical, optical, and catalytic properties. Particularly, the use of gold nanoparticles is widespread in colorimetric assays because of their simple, cost-effective fabrication, and ease of use. More importantly, the gold nanoparticle sensor response is a visual change in color, which allows easy interpretation of results. Therefore, many studies of gold nanoparticle-based colorimetric methods have been reported, and some review articles published over the past years. Most reviews focus exclusively on a single gold nanoparticle-based colorimetric technique for one analyte of interest. In this review, we focus on the current developments in different colorimetric assay designs for the sensing of various chemical and biological samples. We summarize and classify the sensing strategies and mechanism analyses of gold nanoparticle-based detection. Additionally, typical examples of recently developed gold nanoparticle-based colorimetric methods and their applications in the detection of various analytes are presented and discussed comprehensively.read more
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References
More filters
Journal ArticleDOI
Positively-charged gold nanoparticles as peroxidiase mimic and their application in hydrogen peroxide and glucose detection
Yun Jv,Baoxin Li,Rui Cao +2 more
TL;DR: Positively-charged gold nanoparticles possess intrinsic peroxidase-like activity, and can catalyze oxidation of the per oxidase substrate 3,3,5,5-tetramethylbenzidine by H(2)O( 2) to develop a blue color in aqueous solution, thus providing a simple approach to colorimetric detection of H(1)O (2) and glucose.
Journal ArticleDOI
Plasmonic ELISA for the ultrasensitive detection of disease biomarkers with the naked eye
TL;DR: A signal generation mechanism for biosensing is introduced that enables the detection of a few molecules of analyte with the naked eye in whole serum at the ultralow concentration of 1 × 10(-18) g ml(-1).
Journal ArticleDOI
Rapid aggregation of gold nanoparticles induced by non-cross-linking DNA hybridization.
TL;DR: This non-cross-linking aggregation system for 15 nm diameter gold nanoparticles functionalized with (alkanethiol)-15mer DNA opens up a new possibility of rapid and reliable genetic analysis.
Journal ArticleDOI
Point-of-care colorimetric detection with a smartphone
TL;DR: This work introduces a novel approach of quantifying colors of colorimetric diagnostic assays with a smartphone that allows high accuracy measurements in a wide range of ambient conditions, making it a truly portable system.
Journal ArticleDOI
Biocatalytic growth of Au nanoparticles: From mechanistic aspects to biosensors design
TL;DR: The biocatalyzed generation of H( 2)O(2) in the presence of O(2)/glucose and glucose oxidase enabled the development of an optical biosensor for glucose.
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