alexa Ultrasensitive Detection Of Pesticides And Other Food Toxicants Using Biosensor: A Modern Analytical Tool
ISSN: 2157-7110

Journal of Food Processing & Technology
Open Access

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3rd European Food Safety & Standards Conference
October 24-25, 2016 Valencia, Spain

M S Thakur
Mysore University, India
Posters & Accepted Abstracts: J Food Process Technol
DOI: 10.4172/2157-7110.C1.054
Abstract
Pesticides are commonly being used on a large scale in agricultural practices to increase productivity but have created a negative impact on human health, environment and ecological balance. Thus, there is a need for development of an appropriate sensors based on nanomaterials, such as quantum dots (QDs) and gold nanoparticles (GNPs). These smart materials possess unique properties useful for biosensing applications. We have successfully made use of these NPs for the sensitive detection of 2, 4-dichlorophenoxy acetic acid (2, 4-D), methyl parathion (MP) and dichlorodiphenyltrichloroethane (DDT) based on competitive immunoassay technique. Cadmium telluride (CdTe QD) was employed for the detection of 2, 4-D and MP at 250 pgmL−1 and 100 pgmL−1 levels respectively. A GNPs-based dipstick technique was developed to detect DDT at nano-gram level. These techniques possess several advantages in terms of rapidity, specificity and cost effectiveness allowing for on-site testing of pesticides. Hence, biosensor systems are bringing about a revolution in the field of food and environmental safety.
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