The Impact of Pesticides - Academy Publish

FUTURE PERSPECTIVESThe detection of pesticides and OP compounds are necessary because it is widelyused in the field area to grow the crops and kill the insects. In many cases thetoxicity is not acute, but it can exert its effect over many years at low concentrationsof the pesticide. The contamination of aquatic systems has become a globalproblem, particularly as many of these pesticides are persistent in the environmentand it causes many health problem and it also affect the food chain. Variousmethods are used for the detection of the pesticides and enzymatic electrochemicalmethods could play important role towards the development of rapid and fieldapplicable system. By using of the nanomaterials, nanotubes, quantum dots etc onecan achieve higher sensitive detection system. It can work colorimetric baseddetection because the nanoparticles have potential to change the colour in case ofenzymatic inhibition measurements. It is clear that nanoparticles based detectionapproach is more powerful tool.Significant progress has been achieved toward the development of fluorescentchemosensors for toxic OP pesticides. The chemosensors have been demonstrated tobe time-effective and more robust that biosensors. It is clear that futureimprovements in this area will require the design of new fluorescent chemosensorswith additional modes for signal transduction. Such sensors will play an importantrole in minimization or elimination of false-positives. Due to the structuralsimilarity of OP compounds, it is also paramount that the designed sensors must befabricated such that they are highly selective toward specific OP compounds.REFERENCESAlivisatos, AP (1996). “Semiconductor Clusters, Nanocrystals, and Quantum Dots”,Science, Vol 271, pp 933-937.Bajgar, J (2004). “Organophosphates/nerve agent poisoning: Mechanism of action,diagnosis, prophylaxis, and treatment”, Adv Clin Chem, Vol 38, pp 151-216.Baughman, RH; Zakhidov, A; de Heer, WA (2002). “Carbon Nanotubes--the RouteToward Applications”, Science, Vol 297, pp 787-792Bonnet, C; Andreescu, S; Marty, J-L (2003). “Adsorption: An Easy and EfficientImmobilisation of Acetylcholinesterase on Screen-Printed Electrodes”’ AnalyticaChimica Acta, Vol 481, No 2, pp 209–211.Brust, M and Kiely, CJ (2002). “Some Recent Advances in NanostructurePreparation from Gold and Silver Particles: A Short Topical Review”, Colloids andSurfaces A: Physicochemical and Engineering Aspects, Vol 202, pp 175-186.AcademyPublish.org - The Impact of Pesticides408