Disassembly of gold nanoparticle dimers for colorimetric detection of ochratoxin A

2015 ◽  
Vol 7 (3) ◽  
pp. 842-845 ◽  
Author(s):  
Rongping Xiao ◽  
Daifang Wang ◽  
Zhenyu Lin ◽  
Bin Qiu ◽  
Meihua Liu ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Ochratoxin A ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Colorimetric Aptasensor

We demonstrate the first colorimetric aptasensor for sensitive detection of ochratoxin A based on disassembly of aggregates of oriented AuNP dimers.

scholarly journals Sensitive colorimetric detection of ochratoxin A by a dual-functional Au/Fe3O4 nanohybrid-based aptasensor

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38590-38596
Author(s):  
Rong Huang ◽  
Lu Lu Xiong ◽  
Hui Hui Chai ◽  
Jing Jing Fu ◽  
Zhisong Lu ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Colorimetric Detection ◽  
Dual Functional ◽  
Colorimetric Aptasensor

A novel colorimetric aptasensor based on a Au/Fe3O4 nanohybrid was developed to detect ochratoxin A (OTA).

Highly sensitive ‘naked-eye’ colorimetric detection of thiourea using gold nanoparticles

2015 ◽  
Vol 7 (12) ◽  
pp. 4927-4933 ◽  
Author(s):  
Yi-Liang Cao ◽  
Yan Li ◽  
Fei Zhang ◽  
Jian-Zhong Huo ◽  
Xiao-Jun Zhao
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Naked Eye ◽  
Colorimetric System ◽  
Highly Sensitive ◽  
Aqueous Environments

A non aggregation colorimetric system was developed for the fast and sensitive detection of thiourea in aqueous environments using an unlabeled gold nanoparticle probe.

Gold nanoparticle-based colorimetric aptasensor for rapid detection of mutiple mycotoxins in rice

2021 ◽  
Author(s):  
Rui Li ◽  
Lin Zhi Li ◽  
Tianzeng Huang ◽  
Xing Liu ◽  
Qi Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Ochratoxin A ◽  
Aflatoxin B1 ◽  
Rapid Detection ◽  
Colorimetric Aptasensor

A novel, simple and rapid colorimetric aptasensor for mutiple mycotoxins (Ochratoxin A (OTA) and aflatoxin B1 (AFB1)) detection was developed using unmodified gold nanoparticles (AuNPs). In the work, the high...

Novel colorimetric aptasensor based on unmodified gold nanoparticle and ssDNA for rapid and sensitive detection of T-2 toxin

2021 ◽  
Vol 348 ◽  
pp. 129128
Author(s):  
Wenwei Zhang ◽  
Yanling Wang ◽  
Mina Nan ◽  
Yongcai Li ◽  
Jianmin Yun ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Sensitive Detection ◽  
Colorimetric Aptasensor

Colorimetric Detection with Aptamer-Gold Nanoparticle Conjugates: Effect of Aptamer Length on Response

2012 ◽  
Author(s):  
Jorge L. Chavez ◽  
Nancy Kelley-Loughnane ◽  
Morley O. Stone ◽  
Robert I. MacCuspie
Keyword(s):  
Gold Nanoparticle ◽  
Colorimetric Detection

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...

Naked-eye colorimetric detection of HCV RNA mediated by a 5′ UTR-targeted antisense oligonucleotide and plasmonic gold nanoparticles

The Analyst ◽  
2021 ◽  
Author(s):  
Almas Shamaila Mohammed ◽  
Aniket Balapure ◽  
Mahammad Nanne Khaja ◽  
Ramakrishnan Ganesan ◽  
Jayati Ray Dutta
Keyword(s):  
Gold Nanoparticles ◽  
Antisense Oligonucleotide ◽  
Early Stage ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Clinical Samples ◽  
Hcv Rna ◽  
Naked Eye

An Au NP based facile strategy for the rapid, early-stage, and sensitive detection of HCV RNA in clinical samples which avoids thiol tagging to the antisense oligonucleotide and expensive infrastructure is presented.

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