Journal of Food Processing & Technology

Ultrasensitive detection of pesticides and other food toxicants using biosensor: A modern analytical tool

3^rd European Food Safety & Standards Conference

October 24-25, 2016 Valencia, Spain

M S Thakur

Mysore University, India

Posters & Accepted Abstracts: J Food Process Technol

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 pgmLâ??1 and 100 pgmLâ??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.

Biography :

Email: msthakur@yahoo.com