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Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination

Doctor of Philosophy in Mechatronic Engineering

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Bibliographic Details
Main Author: Huzein Fahmi, Hawari
Other Authors: Ali Yeon, Md. Shakaff, Prof. Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
Imprinted polymers
Molecularly imprinted polymer (MIP)
Polymers
Molecularly imprinted polymer (MIP) > Sensor
Sensor
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72703
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spelling my.unimap-727032022-11-17T04:55:40Z Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination Huzein Fahmi, Hawari Ali Yeon, Md. Shakaff, Prof. Dr. Imprinted polymers Molecularly imprinted polymer (MIP) Polymers Molecularly imprinted polymer (MIP) -- Sensor Sensor Doctor of Philosophy in Mechatronic Engineering Fruit maturity can be determined using artificial olfactory equipment such as electronic nose system. However, the electronic nose system performance is limited due to several issues on existing gas sensor capability such as low selectivity and high temperature operation. An alternative is to use molecularly imprinted polymer (MIP) based sensors. This thesis discussed about the development of MIP sensors that are highly selective and able to bind with mango volatiles. Detection fruit maturity level has always been a very important aspect of final quality grading in agriculture. From gas chromatography mass spectrophotometer (GCMS) studies, mango volatiles ((Sa(B-pinene, terpinolene and ϒ-terpinene) were identified as maturity marker. It was found mangoes different maturity level will emit specific maturity marker pattern. By using Hyperchem Modelling, MIP optimum ratio (template: MAA:EDGMA) for (Sa(B-pinene and ϒ-terpinene were found to be at 1:5:20 , while for terpinolene, the MIP optimum ratio was 1:3:20. Utilizing this information, the MIP sensor was first developed per the selected maturity marker. It was then integrated with Integrated Electrode (IDE) and Quartz Crystal Microbalance (QMC) as transducer. MIP sensor was highly selective in discriminating any non-target volatiles including isomers. Furthermore, the MIP sensor was highly sensitive to detect chemical marker as low as 1.7 ppm concentration. When compared to a metal oxide semiconductor (MOS) sensor, it was observed that the MIP sensor also offers excellent sensor response/recovery and repeatability than the MOS sensor. 2015 2021-11-05T01:32:45Z 2021-11-05T01:32:45Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72703 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Mechatronic Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Imprinted polymers
Molecularly imprinted polymer (MIP)
Polymers
Molecularly imprinted polymer (MIP) -- Sensor
Sensor
spellingShingle Imprinted polymers
Molecularly imprinted polymer (MIP)
Polymers
Molecularly imprinted polymer (MIP) -- Sensor
Sensor
Huzein Fahmi, Hawari
Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
description Doctor of Philosophy in Mechatronic Engineering
author2 Ali Yeon, Md. Shakaff, Prof. Dr.
author_facet Ali Yeon, Md. Shakaff, Prof. Dr.
Huzein Fahmi, Hawari
format Thesis
author Huzein Fahmi, Hawari
author_sort Huzein Fahmi, Hawari
title Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
title_short Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
title_full Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
title_fullStr Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
title_full_unstemmed Highly selective molecularly imprinted polymer (MIP) based sensor for fruit maturity determination
title_sort highly selective molecularly imprinted polymer (mip) based sensor for fruit maturity determination
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2015
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72703
_version_ 1751537826686566400
score 13.222552

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