Electronic sensors for food safety and water quality monitoring


Dr Roy Vellaisamy,
Associate Professor,
Department of Physics & Materials Science (COSDAF)


The detection of the neutral biogenic amines is of particular interest due to their importance in areas ranging from clinical diagnostics to quality control of food products. Traditional methods of detecting biogenic amines include enzyme sensors and antibody sensors are not good candidates for use in food quality control applications where cheap and disposable sensors are necessary. Therefore, a low cost solution for amine sensing is of great interest. Herein, we present a novel method to fabricate electronic sensors to detect toxins for food safety applications. On the other hand, the supply of safe water to households is critical for ensuring economic and social stability. Recently, in Hong Kong, the water supply to public estate housing has come under scrutiny due to possible lead contamination. Lead contamination in water causes lead poisoning which in turn results in life-threatening illnesses, long-term disabilities and death. In this talk, various sensors for food safety to water quality monitoring will be discussed.