scholarly journals Robust colorimetric detection based on the anti-aggregation of gold nanoparticles for bromide in rice samples

RSC Advances ◽  
2018 ◽  
Vol 8 (38) ◽  
pp. 21566-21576 ◽  
Author(s):  
Siwat Plaisen ◽  
Wilairat Cheewasedtham ◽  
Thitima Rujiralai
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Colorimetric Sensor ◽  
Selective Detection ◽  
Bromide Ions ◽  
Rice Samples

In this work, we developed a AuNP colorimetric sensor for the facile, sensitive and selective detection of bromide ions in rice samples.

Sensitive and selective detection of glutathione based on anti-catalytical growth of gold nanoparticles colorimetric sensor

2017 ◽  
Vol 97 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Cui Lai ◽  
Lei Qin ◽  
Liang Chen ◽  
Guang-Ming Zeng ◽  
Dan-Lian Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Sensor ◽  
Selective Detection

Selective colorimetric detection of Cr(iii) and Cr(vi) using gallic acid capped gold nanoparticles

2016 ◽  
Vol 45 (20) ◽  
pp. 8347-8354 ◽  
Author(s):  
Chen Dong ◽  
Genhua Wu ◽  
Zhuqing Wang ◽  
Wenzhi Ren ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gallic Acid ◽  
Color Change ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Selective Detection

A colorimetric assay is proposed for the selective detection of Cr(iii) and Cr(vi) via the aggregation-induced color change of gallic acid capped gold nanoparticles (GA-AuNPs).

Colorimetric sensor for highly sensitive and selective detection of copper ion

2017 ◽  
Vol 9 (35) ◽  
pp. 5094-5100 ◽  
Author(s):  
Qi Gao ◽  
Ling Ji ◽  
Qiaoning Wang ◽  
Kun Yin ◽  
Jinhua Li ◽  
...  
Keyword(s):  
Colorimetric Detection ◽  
Copper Ion ◽  
Colorimetric Sensor ◽  
Selective Detection ◽  
Inhibiting Effect ◽  
Highly Sensitive

Colorimetric detection of Cu2+based on the inhibiting effect of Cu2+on the reaction ofl-cysteine with the established probe Cy-NB.

The highly sensitive and facile colorimetric detection of the glycidyl azide polymer based on propargylamine functionalized gold nanoparticles using click chemistry

2015 ◽  
Vol 51 (60) ◽  
pp. 12092-12094 ◽  
Author(s):  
Yi He ◽  
Yun Liang ◽  
Dunju Wang
Keyword(s):  
Gold Nanoparticles ◽  
Click Chemistry ◽  
Colorimetric Detection ◽  
Colorimetric Sensor ◽  
Glycidyl Azide Polymer ◽  
Functionalized Gold Nanoparticles ◽  
Highly Sensitive ◽  
Glycidyl Azide

A highly sensitive and facile colorimetric sensor for the glycidyl azide polymer explosive was developed based on propargylamine functionalized gold nanoparticles using click chemistry.

scholarly journals Selective and colorimetric detection of Ba2+ ions in aqueous solutions using 11-mercaptoundecylphosphonic acid functionalized gold nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31611-31618 ◽  
Author(s):  
Blanca A. García Grajeda ◽  
Samuel G. Soto Acosta ◽  
Sergio A. Aguila ◽  
Héctor Peinado Guevara ◽  
Marta E. Díaz-García ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Selective Detection ◽  
Functionalized Gold Nanoparticles

In this paper we describe a simple colorimetric method for the sensitive and selective detection of Ba2+ ions, using 11-mercaptoundecylphosphonic acid functionalized gold nanoparticles (AuNPs–MPA) in aqueous solution.

Biologically synthesized silver nanoparticle-based colorimetric sensor for the selective detection of Zn2+

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91158-91165 ◽  
Author(s):  
Muhammad Ihsan ◽  
Abdul Niaz ◽  
Abdur Rahim ◽  
Muhammad Iqbal Zaman ◽  
Muhammad Balal Arain ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Colorimetric Detection ◽  
Colorimetric Sensor ◽  
Selective Detection

Schematic illustration for the colorimetric detection of Zn2+.

Colorimetric detection of cysteine based on dispersion–aggregation mechanism of chitosan stabilized gold nanoparticles

2019 ◽  
Vol 97 (3) ◽  
pp. 233-237 ◽  
Author(s):  
Esther Jeyasekaran ◽  
Sridevi Venkatachalam
Keyword(s):  
Gold Nanoparticles ◽  
High Selectivity ◽  
Limit Of Detection ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Colour Change ◽  
Selective Detection ◽  
Aggregation Mechanism ◽  
Plausible Mechanism ◽  
Sulfur Containing

A simple and selective colorimetric method for detection of cysteine using chitosan stabilized gold nanoparticles has been developed. L-cysteine is a sulfur containing amino acid. Cysteine binds with the gold nanoparticles through a sulfur group and induces aggregation of the nanoparticles, which leads to a visible colour change from pale red to blue. A good linearity was observed from 0.1 to 30 μmol/L (R = 0.9958) cysteine, and the limit of detection was found to be 0.1 μmol/L. The gold nanoparticles showed a high selectivity towards the detection of cysteine even in the presence of 10 000 fold higher concentration of common interferences such as glutathione, methionine, and homocysteine. A plausible mechanism for the selective detection of cysteine in presence of interferences based on a dispersion–aggregation mechanism has been proposed.

Colorimetric detection of creatinine using its specific binding peptides and gold nanoparticles

2020 ◽  
Vol 44 (37) ◽  
pp. 15828-15835
Author(s):  
Shuaihui Feng ◽  
Rongjia Shi ◽  
Ping Xu ◽  
Jigna R. Bhamore ◽  
Jyotiranjan Bal ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Phage Display ◽  
Detection Method ◽  
Specific Binding ◽  
Colorimetric Detection ◽  
Selective Detection ◽  
Phage Display Technology ◽  
Display Technology ◽  
Binding Peptides ◽  
Peptide Probes

A new selective detection method was developed for creatinine by combining gold nanoparticles (GNPs) and peptide probes which were screened and selected using phage-display technology.

scholarly journals Formononetin in Radix Hedysari extract-mediated green synthesis of gold nanoparticles for colorimetric detection of ferrous ions in tap water

RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32897-32905
Author(s):  
Xinyue Chen ◽  
Jiahui Ji ◽  
Gengen Shi ◽  
Zhiyuan Xue ◽  
Xianglin Zhou ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Tap Water ◽  
Colorimetric Detection ◽  
Selective Detection ◽  
Ferrous Ions

AuNPs were synthesized using Radix Hedysari extract and used for the sensitive and selective detection of Fe2+.

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