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Reference type: Journal
Authors: Hawari HF, Samsudin NM, Shakaff AYM, Ghani SA, Ahmad MN, Wahab Y, Hashim U
Article Title: Development of Interdigitated Electrode Molecular Imprinted Polymer Sensor for Monitoring Alpha Pinene Emissions from Mango Fruit.
Publication date: 2013
Journal: Procedia Engineering
Volume: 53
Page numbers: 197-202.
DOI: 10.1016/j.proeng.2013.02.026
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1877705813001458

Abstract: Alpha Pinene is a type of terpene hydrocarbons commonly emitted in substantial amounts by plants such as mango. Using Interdigitated Electrode (IDE) structure, a sensor for detecting Alpha Pinene volatile by using molecular imprinted polymer (MIP) was fabricated. The MIP membrane contained methacrylic acid, which formed specific cavities originated by target molecule. The use of Polyethylene Terephthalate (PET) as a substrate would allow a ''low cost and flexible'' sensor implementations. The IDE MIP sensor is capable to detect Alpha Pinene contained gas. The sensor characteristics were strongly influenced by the composition ratio of cross-linker, functional monomer and template molecule. The remained molecule on MIP can be removed by immersing thus the sensor can be used repeatedly. By determining Alpha Pinene volatile released during pre-matured until matured period, one could use this as a data point as potential non destructive solution to discriminate the mango ripeness stage hence improving the quality of harvest
Template and target information: α-pinene
Author keywords: Electronic nose, gas sensor, molecular imprinted polymer, Interdigitated Electrode, Alpha Pinene

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