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The non judicious application of a particular class of pesticides-organophosphates (OPs) to control agricultural pest has become a serious environmental issue leading to soil and subsequently surface & ground water pollution. The environmental concerns regarding persistence of organophosphates and toxic metabolites in soil and ground water has stimulated the research to develop rapid and sensitive...
An optical sensor is probably the most engaging areas of research at present, given the number of publications that come out in this area. Starting with simple optical fiber sensors for physical parameters such as temperature, strain, etc. to the more complex biosensing strategies, optical sensors promise immunity to electrical interferences, ease of manufacturing and easy acceptance from the user...
The present study describes construction of amperometric biosensor for determination of inorganic phosphate (IP) using single enzyme acid phosphatase (ACP). A blend of biopolymers agarose and guar gum was used to immobilize ACP and estimation of inorganic phosphate was carried out electrochemically using substrate L-ascorbic acid-2-phosphate. Enzyme catalyzes substrate hydrolysis and ascorbic acid...
Molecular level interactions and accessibility to binding site play a critical role in efficacy of biosensors. Details on the orientation and location of binding of a biomarker to a bioreceptor can be obtained through computational modeling and analysis. In the present paper, Molecular Dynamics (MD) was used to model the and understand the molecular interaction within a aptamer based sensor using...
The agri-food market the world over has increased biological, chemical and physical threats to food products, triggering a bigger consumer demand on process control, quality and safety of these products. Bio-sensors can play a vital role in the agricultural and food sectors to control production processes and ensure greater food quality and safety by reliable, fast and cost effective monitoring procedures...
The paper reports the development of low cost, portable and easily operable optical fiber based carbon dioxide biosensor (CO2). The chlorophyll and anthocyanin is used as active clads. Coriander and red leaf amaranth (amaranth) contain photosynthetic pigments viz. chlorophyll and anthocyanin. Developed sensors selectively show CO2 gas concentration dependent response from 1 to 500 ppm that is measured...
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