Portable Bioactive Paper-Based Sensor for Quantification of Pesticides

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Kavruk M., Ozalp V. C., Oktem H. A.

JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY, 2013 (SCI-Expanded) identifier identifier identifier


A paper-based biosensor was developed for the detection of the degradation products of organophosphorus pesticides. The biosensor quantifies acetylcholine esterase inhibitors in a fast, disposable, cheap, and accurate format. We specifically focused on the use of sugar or protein stabilizer to achieve a biosensor with long shelf-life. The new biosensor detected malathion with a detection limit of 2.5 ppm in 5 min incubation time. The operational stability was confirmed by testing 60 days storage at 4 degrees C when glucose was used as stabilizer.