A Portable Electrochemical System for Plant Volatile Detection. (19th June 2018)

• Record Type: Journal Article
• Authors: Fang, Yi; Ramasamy, Ramaraja P.
• Is Part Of: ECS transactions. Volume 85:Number 13(2018)
• Page Start: 1359
• Page End: 1367
• Publication Date: 2018-06-19
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/08513.1359ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : Methyl salicylate has been identified as one of the most important biomarker for biotic stresses in plants. Advanced detection of methyl salicylate released by plants has a profound significance for agriculture to maintain effective use for disease management practices. In this work, esterase, salicylate hydroxylase and tyrosinase were used to develop a tri-enzymatic biosensor using screen-printed electrodes for direct detection of methyl salicylate. The sensitivity and limit of detection were determined to be 3.1 ± 0.2 µA·cm -2 ·µM -1 and 0.8 ± 0.2 µM respectively. An open source computer hardware Arduino Uno was used for fabricating the computer-controlled automated system for collection of volatile organic compound from plant head space and for pre-concentrating the compound. A prototype of portable system for methyl salicylate collection and electrochemical detection was developed in this work.