A sensorial colorimetric detection method for Hg2+ and Cu2+ ions using single probe sensor based on 5-methyl-1,3,4-thiadiazole-2-thiol stabilized gold nanoparticles and its application in real water sample analysis

2019 ◽  
Vol 147 ◽  
pp. 1163-1172 ◽  
Author(s):  
Mt Nasima Aktara ◽  
Somnath Das ◽  
Sk Nayim ◽  
Nandan Kumar Sahoo ◽  
Maidul Beg ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Water Sample ◽  
Detection Method ◽  
Colorimetric Detection ◽  
Sample Analysis ◽  
Single Probe ◽  
Probe Sensor ◽  
Real Water Sample

Selective recognition of Cr (VI) ion as Cr 2 O 7 2− in aqueous medium using CTAB‐capped anthracene‐based nanosensor: Application to real water sample analysis

2018 ◽  
Vol 32 (4) ◽  
pp. e3923 ◽  
Author(s):  
Sonali B. Suryawanshi ◽  
Prasad G. Mahajan ◽  
Govind B. Kolekar ◽  
Anita J. Bodake ◽  
Shivajirao R. Patil
Keyword(s):  
Water Sample ◽  
Aqueous Medium ◽  
Selective Recognition ◽  
Sample Analysis ◽  
Real Water Sample

Novel rhodamine based chemosensor for detection of Hg2+: Nanomolar detection, real water sample analysis, and intracellular cell imaging

2021 ◽  
Vol 330 ◽  
pp. 129308
Author(s):  
Balasaheb D. Vanjare ◽  
Prasad G. Mahajan ◽  
Hyang-Im Ryoo ◽  
Nilam C. Dige ◽  
Nam Gyu Choi ◽  
...  
Keyword(s):  
Water Sample ◽  
Cell Imaging ◽  
Sample Analysis ◽  
Nanomolar Detection ◽  
Real Water Sample

Fast Colorimetric Detection of Copper Ions Using L-Cysteine Functionalized Gold Nanoparticles

2007 ◽  
Vol 7 (2) ◽  
pp. 712-716 ◽  
Author(s):  
Wenrong Yang ◽  
J. Justin Gooding ◽  
Zhicong He ◽  
Qiong Li ◽  
Guonan Chen
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Surface Plasmon ◽  
Visual Detection ◽  
Detection Method ◽  
Copper Ions ◽  
Colorimetric Detection ◽  
Sandwich Complex ◽  
Functionalized Gold Nanoparticles

This communication reports an efficient visual detection method of Cu2+ by L-cysteine functionalized gold nanoparticles in aqueous solution. Upon exposure to Cu2+, the gold nanoparticle solution changed from red to blue, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. This colorimetric sensor allows a rapid quantitative assay of Cu2+ down to the concentration range of 10−5 M. Recognition of Cu2+ and formation of the aggregates are proposed to occur via a 2 : 1 sandwich complex between L-cysteine and Cu2+.

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.

Fast Colorimetric Detection of Copper Ions Using L-Cysteine Functionalized Gold Nanoparticles

2007 ◽  
Vol 7 (2) ◽  
pp. 712-716 ◽  
Author(s):  
Wenrong Yang ◽  
J. Justin Gooding ◽  
Zhicong He ◽  
Qiong Li ◽  
Guonan Chen
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Surface Plasmon ◽  
Visual Detection ◽  
Detection Method ◽  
Copper Ions ◽  
Colorimetric Detection ◽  
Sandwich Complex ◽  
Functionalized Gold Nanoparticles

This communication reports an efficient visual detection method of Cu2+ by L-cysteine functionalized gold nanoparticles in aqueous solution. Upon exposure to Cu2+, the gold nanoparticle solution changed from red to blue, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. This colorimetric sensor allows a rapid quantitative assay of Cu2+ down to the concentration range of 10−5 M. Recognition of Cu2+ and formation of the aggregates are proposed to occur via a 2 : 1 sandwich complex between L-cysteine and Cu2+.

Facile colorimetric detection of human chorionic gonadotropin based on the peptide-induced aggregation of gold nanoparticles

2015 ◽  
Vol 7 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Chia-Chen Chang ◽  
Chen-Yu Chen ◽  
Chie-Pein Chen ◽  
Chii-Wann Lin
Keyword(s):  
Gold Nanoparticles ◽  
Chorionic Gonadotropin ◽  
Human Chorionic Gonadotropin ◽  
Detection Method ◽  
Colorimetric Detection ◽  
Optical Detection ◽  
Binding Peptide ◽  
Induced Aggregation

A facile and rapid optical detection method of human chorionic gonadotropin (hCG) was developed by using the hCG-binding peptide and the anti-aggregation of gold nanoparticles (AuNPs).

scholarly journals CRISPR/Cas12a-mediated gold nanoparticle aggregation for colorimetric detection of SARS-CoV-2

2021 ◽  
Author(s):  
Yiren Cao ◽  
Jinjun Wu ◽  
Bo Pang ◽  
Hongquan Zhang ◽  
X. Chris Le
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Colorimetric Detection ◽  
Isothermal Amplification ◽  
Nanoparticle Aggregation ◽  
Cleavage Activity ◽  
Gold Nanoparticle Aggregation

The trans-cleavage activity of the target-activated CRISPR-Cas12a liberated an RNA crosslinker from a molecular transducer, which facilitated assembly of gold nanoparticles. Integration of the molecular transducer with isothermal amplification and...

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