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...

A gold nanoparticle-based label free colorimetric aptasensor for adenosine deaminase detection and inhibition assay

The Analyst ◽  
2015 ◽  
Vol 140 (5) ◽  
pp. 1572-1577 ◽  
Author(s):  
Fen Cheng ◽  
Yue He ◽  
Xiao-Jing Xing ◽  
Dai-Di Tan ◽  
Yi Lin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Adenosine Deaminase ◽  
Gold Nanoparticle ◽  
Label Free ◽  
Inhibition Assay ◽  
Free Gold ◽  
Novel Strategy ◽  
Colorimetric Aptasensor

A novel strategy for the fabrication of a colorimetric aptasensor using label free gold nanoparticles (AuNPs) is proposed. The aptasensor consists of adenosine (AD) aptamer, AD and AuNPs. The strategy has been employed for the assay of adenosine deaminase (ADA) activity.

Development of a gold nanoparticle based anti-aggregation method for rapid detection of mercury(ii) in aqueous solutions

2014 ◽  
Vol 6 (15) ◽  
pp. 5690-5696 ◽  
Author(s):  
Genin Gary Huang ◽  
Yen-Ting Chen ◽  
Yu-Rong Lin
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Gold Nanoparticle ◽  
Rapid Detection ◽  
Aggregation Method

A dynamic anti-aggregation sensing method using unmodified gold nanoparticles(AuNPs) for rapid detection of Hg2+.

Gold nanoparticle-based colorimetric aptasensor for rapid detection of six organophosphorous pesticides

2015 ◽  
Vol 34 (10) ◽  
pp. 2244-2249 ◽  
Author(s):  
Wenhui Bai ◽  
Chao Zhu ◽  
Jinchuan Liu ◽  
Mengmeng Yan ◽  
Shuming Yang ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Rapid Detection ◽  
Organophosphorous Pesticides ◽  
Colorimetric Aptasensor

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.

Simple and rapid detection of bisphenol A using a gold nanoparticle-based colorimetric aptasensor

2019 ◽  
Vol 287 ◽  
pp. 205-213 ◽  
Author(s):  
Eun-Hee Lee ◽  
Sung Ku Lee ◽  
Min Jung Kim ◽  
Seung-Woo Lee
Keyword(s):  
Bisphenol A ◽  
Gold Nanoparticle ◽  
Rapid Detection ◽  
Colorimetric Aptasensor

A colorimetric aptasensor for the simple and rapid detection of human papillomavirus type 16 L1 proteins

The Analyst ◽  
2021 ◽  
Author(s):  
Li Zhu ◽  
Yu Zhao ◽  
Shangchen Yao ◽  
Mingzhe Xu ◽  
Lihui Yin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Human Papillomavirus ◽  
Rapid Detection ◽  
Rna Aptamer ◽  
Human Papillomavirus Type 16 ◽  
Visual Screening ◽  
Colorimetric Aptasensor

In this study, a novel colorimetric aptasensor was developed for the rapid detection and visual screening of HPV16 L1 proteins by using the gold nanoparticles (AuNPs) and an RNA aptamer...

scholarly journals A gold nanoparticle-single-chain fragment variable antibody as an immunoprobe for rapid detection of morphine by dipstick

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1511-1518 ◽  
Author(s):  
Sonu Gandhi ◽  
Ivneet Banga ◽  
Pawan Kumar Maurya ◽  
Sergei A. Eremin
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Rapid Detection ◽  
Lateral Flow ◽  
Single Chain ◽  
Chain Fragment ◽  
Single Chain Fragment Variable ◽  
Single Chain Fragment

Dipstick device developed on the principle of lateral flow using gold nanoparticles for analysis of morphine in urine by morphine/scFv/immunoprobe.

Interference of Gold Nanoparticles with In vitro Endotoxin Detection Assays

2020 ◽  
Vol 16 (2) ◽  
pp. 204-213 ◽  
Author(s):  
Melissa A. Vetten ◽  
Mary Gulumian
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Surface Reactivity ◽  
In Vitro Assays ◽  
Limulus Amebocyte Lysate ◽  
Chromogenic Assay ◽  
Nanoparticle Suspensions ◽  
Endotoxin Contamination ◽  
Factor C

Background: Endotoxin-free engineered nanoparticle suspensions are imperative for their successful applications in the field of nanomedicine as well as in the investigations in their toxicity. Gold nanoparticles are known to interfere with various in vitro assays due to their optical properties and potential for surface reactivity. In vitro endotoxin testing assays are known to be susceptible to interference caused by the sample being tested. Objective: This study aimed to identify a preferred assay for the testing of endotoxin contamination in gold nanoparticle suspensions. Methods: The interference by gold nanoparticles on three assays namely, the commonly used limulus amebocyte lysate chromogenic assay, the limulus amebocyte lysate gel-clot method, and the less common recombinant Factor C (rFC) assay, was tested. Results: Possible interference could be observed with all three assays. The interference with the absorbance- based chromogenic assay could not be overcome by dilution; whilst the qualitative nature of the gel-clot assay excluded the possibility of distinguishing between a false positive result due to enhancement of the sensitivity of the assay, and genuine endotoxin contamination. However, interference with the rFC assay was easily overcome through dilution. Conclusion: The rFC assay is recommended as an option for endotoxin contamination detection in gold nanoparticle suspensions.

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