Multi-charged bis(p-calixarene)/pillararene functionalized gold nanoparticles for ultra-sensitive sensing of butyrylcholinesterase

Soft Matter ◽  
2019 ◽  
Vol 15 (41) ◽  
pp. 8197-8200 ◽  
Author(s):  
Pei-yu Li ◽  
Yong Chen ◽  
Chang-hui Chen ◽  
Yu Liu
Keyword(s):  
Gold Nanoparticles ◽  
Supramolecular Assembly ◽  
Colorimetric Sensing ◽  
Functionalized Gold Nanoparticles

A novel supramolecular assembly based on BSC4A/CP5A modified AuNPs for colorimetric sensing of both succinylcholine (SuCh) and butyrylcholinesterase (BChE).

Sensitive and selective colorimetric sensing of Fe3+ion by using p-amino salicylic acid dithiocarbamate functionalized gold nanoparticles

2014 ◽  
Vol 38 (4) ◽  
pp. 1503-1511 ◽  
Author(s):  
Vaibhavkumar N. Mehta ◽  
Suresh Kumar Kailasa ◽  
Hui-Fen Wu
Keyword(s):  
Gold Nanoparticles ◽  
Salicylic Acid ◽  
Biological Samples ◽  
Colorimetric Sensing ◽  
Au Nps ◽  
Functionalized Gold Nanoparticles ◽  
Amino Salicylic Acid

DTC-PAS-Au NPs successfully acted as probes for the selective and sensitive colorimetric sensing of Fe3+ions in biological samples.

Selective Colorimetric Sensing of Geometrical Isomers of Dicarboxylates in Water by Using Functionalized Gold Nanoparticles

2008 ◽  
Vol 3 (11) ◽  
pp. 1962-1967 ◽  
Author(s):  
Amrita Chatterjee ◽  
Dong Ju Oh ◽  
Kyung Mi Kim ◽  
Kyung-Seog Youk ◽  
Kyo Han Ahn
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Sensing ◽  
Geometrical Isomers ◽  
Functionalized Gold Nanoparticles

Malonamide dithiocarbamate functionalized gold nanoparticles for colorimetric sensing of Cu2+ and Hg2+ ions

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4245-4255 ◽  
Author(s):  
Vaibhavkumar N. Mehta ◽  
Suresh Kumar Kailasa
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Colorimetric Sensing ◽  
Au Nps ◽  
Colorimetric Probe ◽  
Functionalized Gold Nanoparticles

In this study, a colorimetric probe was developed based on malonamide dithiocarbamate functionalized gold nanoparticles (MA–DTC–Au NPs) for the simultaneous colorimetric detection of Cu2+ and Hg2+ ions.

Simple and sensitive colorimetric sensing of Cd2+ ion using chitosan dithiocarbamate functionalized gold nanoparticles as a probe

2015 ◽  
Vol 220 ◽  
pp. 850-858 ◽  
Author(s):  
Vaibhavkumar N. Mehta ◽  
Hirakendu Basu ◽  
Rakesh Kumar Singhal ◽  
Suresh Kumar Kailasa
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Sensing ◽  
Functionalized Gold Nanoparticles

Colorimetric sensing of iodide based on triazole-acetamide functionalized gold nanoparticles

2014 ◽  
Vol 181 (5-6) ◽  
pp. 573-579 ◽  
Author(s):  
I-Lin Lee ◽  
Yi-Ming Sung ◽  
Chien-Hou Wu ◽  
Shu-Pao Wu
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Sensing ◽  
Functionalized Gold Nanoparticles

Selective Colorimetric Sensing of Deferoxamine with 4-Mercaptophenol− and Mercaptoacetic acid−Functionalized Gold Nanoparticles via Fe(III)-Chelation

2021 ◽  
Author(s):  
Ömer Kaan Koç ◽  
Elif Ezgi Benli ◽  
Nurşah Karahan ◽  
Ayşem Üzer Arda ◽  
Resat Apak
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Mercaptoacetic Acid ◽  
Colorimetric Sensing ◽  
Colorimetric Probe ◽  
Functionalized Gold Nanoparticles

A gold nanoparticle-based colorimetric probe was developed for the determination of deferoxamine (desferrioxamine, DFO), a strong Fe(III) ion-chelator. Au-nanoparticles were synthesized and modified with 4-mercaptophenol (4MP) and mercaptoacetic acid (MAA)...

scholarly journals Mercaptosuccinic-Acid-Functionalized Gold Nanoparticles for Highly Sensitive Colorimetric Sensing of Fe(III) Ions

Chemosensors ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 290
Author(s):  
Nadezhda S. Komova ◽  
Kseniya V. Serebrennikova ◽  
Anna N. Berlina ◽  
Svetlana M. Pridvorova ◽  
Anatoly V. Zherdev ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Drinking Water ◽  
Detection Limit ◽  
Analytical Signal ◽  
Colorimetric Sensor ◽  
World Health ◽  
Colorimetric Sensing ◽  
Functionalized Gold Nanoparticles ◽  
Mercaptosuccinic Acid ◽  
Highly Sensitive

The development of reliable and highly sensitive methods for heavy metal detection is a critical task for protecting the environment and human health. In this study, a qualitative colorimetric sensor that used mercaptosuccinic-acid-functionalized gold nanoparticles (MSA-AuNPs) to detect trace amounts of Fe(III) ions was developed. MSA-AuNPs were prepared using a one-step reaction, where mercaptosuccinic acid (MSA) was used for both stabilization, which was provided by the presence of two carboxyl groups, and functionalization of the gold nanoparticle (AuNP) surface. The chelating properties of MSA in the presence of Fe(III) ions and the concentration-dependent aggregation of AuNPs showed the effectiveness of MSA-AuNPs as a sensing probe with the use of an absorbance ratio of A530/A650 as an analytical signal in the developed qualitative assay. Furthermore, the obvious Fe(III)-dependent change in the color of the MSA-AuNP solution from red to gray-blue made it possible to visually assess the metal content in a concentration above the detection limit with an assay time of less than 1 min. The detection limit that was achieved (23 ng/mL) using the proposed colorimetric sensor is more than 10 times lower than the maximum allowable concentration for drinking water defined by the World Health Organization (WHO). The MSA-AuNPs were successfully applied for Fe(III) determination in tap, spring, and drinking water, with a recovery range from 89.6 to 126%. Thus, the practicality of the MSA-AuNP-based sensor and its potential for detecting Fe(III) in real water samples were confirmed by the rapidity of testing and its high sensitivity and selectivity in the presence of competing metal ions.

Colorimetric sensing of atrazine in rice samples using cysteamine functionalized gold nanoparticles after solid phase extraction

2016 ◽  
Vol 8 (1) ◽  
pp. 52-56 ◽  
Author(s):  
Guangyang Liu ◽  
Shanshan Wang ◽  
Xin Yang ◽  
Tengfei Li ◽  
Yongxin She ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Colorimetric Assay ◽  
Phase Extraction ◽  
Colorimetric Sensing ◽  
Functionalized Gold Nanoparticles ◽  
Rice Samples

A colorimetric assay for the determination of atrazine in rice samples using cysteamine–gold nanoparticles after solid phase extraction has been developed.

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