Record Details

Plasmon enhanced fluoro-immunoassay using egg yolk antibodies for ultra-sensitive detection of herbicide diuron.

DIR@IMTECH: CSIR-Institute of Microbial Technology

View Archive Info
 
 
Field Value
 
Title Plasmon enhanced fluoro-immunoassay using egg yolk antibodies for ultra-sensitive detection of herbicide diuron.
 
Creator Sharma, Priyanka
Kukkar, Manil
Ganguli, Ashok K
Bhasin, Aman
Suri, C Raman
 
Description Plasmon enhanced fluorescence immunoassay (PEFI) format has been reported in developing a sensitive heterogeneous fluoroimmunoassay for monitoring the phenylurea herbicide diuron. Computer-assisted molecular modeling was carried out to study the conformational and electrostatic effects of synthesized hapten for producing highly specific egg yolk antibody against a phenyl urea herbicide diuron. The generated antibodies were labeled with fluorescein isothiocyanate at different molar ratios and used as tracer in the developed fluorescence based immunoassay. The sensitivity of the assay format was enhanced by using silver nanoparticles tagged with bovine serum albumin as a new blocking reagent in the developed PEFI format. Enhancer treatment on the developed immunoassay showed a significant improvement of fluorescence signal intensity with approximately 10 fold increase in assay sensitivity. The immunoassay has a detection limit of 0.01 ng mL(-1) with good signal precision (~2%) in the optimum working concentration range between 1 pg mL(-1) to 10 μg mL(-1) of diuron. These findings facilitate high throughput fluorescence-based processes that could be useful in biology, drug discovery and compound screening applications.
 
Publisher Cambridge : Royal Society of Chemistry
 
Date 2013-08-07
 
Type Article
PeerReviewed
 
Relation http://pubs.rsc.org/en/Content/ArticleLanding/2013/AN/c3an00505d#!divAbstract
http://crdd.osdd.net/open/1624/
 
Identifier Sharma, Priyanka and Kukkar, Manil and Ganguli, Ashok K and Bhasin, Aman and Suri, C Raman (2013) Plasmon enhanced fluoro-immunoassay using egg yolk antibodies for ultra-sensitive detection of herbicide diuron. The Analyst, 138 (15). pp. 4312-20. ISSN 1364-5528