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Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection

This study aims to observe the sensing properties of chitosan sensor (CS) and chitosanroselle sensors (CRSs) on toluene at various concentrations. CRSs were deposited using various chitosan: roselle ratio of 99:1 to 89:11 to find the optimum ratio which exhibit the best electrical properties. Toluen...

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Main Author: Halimatussa'adiah, Adnan
Other Authors: Dr. Irwana Nainggolan
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Chitosan sensor (CS)
Chitosanroselle sensors (CRSs)
Thin film sensor
Thin film
Sensors
Chitosan
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41303
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spelling my.unimap-413032016-04-13T07:01:52Z Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection Halimatussa'adiah, Adnan Dr. Irwana Nainggolan Chitosan sensor (CS) Chitosanroselle sensors (CRSs) Thin film sensor Thin film Sensors Chitosan This study aims to observe the sensing properties of chitosan sensor (CS) and chitosanroselle sensors (CRSs) on toluene at various concentrations. CRSs were deposited using various chitosan: roselle ratio of 99:1 to 89:11 to find the optimum ratio which exhibit the best electrical properties. Toluene is a suitable chemical marker for lung cancer diagnosis where 30 ppb toluene in exhaled breath is regarded to be a distinctive early symptom of lung cancer. Therefore, the preliminary study on the electrical laboratory testing of the CS and CRSs film properties to toluene vapor-contaminated air in the range of 15–90 ppb was carried out at room temperature (25–30oC). The results suggested that the proposed CS and CRS can operate at room temperature with a high performance demonstrated by good response, recovery, sensitivity, repeatability, stability and selectivity. All CRS exhibited better output voltage compared to CS where the optimum ratio observed was chitosan:roselle (93:7). This is a good preliminary step for a trouble free, painless and steadfast technique which aid in diagnosing lung cancer, enabling early detection. 2016-04-13T07:01:52Z 2016-04-13T07:01:52Z 2013-10 Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41303 en Universiti Malaysia Perlis (UniMAP) School of Materials 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 Chitosan sensor (CS)
Chitosanroselle sensors (CRSs)
Thin film sensor
Thin film
Sensors
Chitosan
spellingShingle Chitosan sensor (CS)
Chitosanroselle sensors (CRSs)
Thin film sensor
Thin film
Sensors
Chitosan
Halimatussa'adiah, Adnan
Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
description This study aims to observe the sensing properties of chitosan sensor (CS) and chitosanroselle sensors (CRSs) on toluene at various concentrations. CRSs were deposited using various chitosan: roselle ratio of 99:1 to 89:11 to find the optimum ratio which exhibit the best electrical properties. Toluene is a suitable chemical marker for lung cancer diagnosis where 30 ppb toluene in exhaled breath is regarded to be a distinctive early symptom of lung cancer. Therefore, the preliminary study on the electrical laboratory testing of the CS and CRSs film properties to toluene vapor-contaminated air in the range of 15–90 ppb was carried out at room temperature (25–30oC). The results suggested that the proposed CS and CRS can operate at room temperature with a high performance demonstrated by good response, recovery, sensitivity, repeatability, stability and selectivity. All CRS exhibited better output voltage compared to CS where the optimum ratio observed was chitosan:roselle (93:7). This is a good preliminary step for a trouble free, painless and steadfast technique which aid in diagnosing lung cancer, enabling early detection.
author2 Dr. Irwana Nainggolan
author_facet Dr. Irwana Nainggolan
Halimatussa'adiah, Adnan
format Thesis
author Halimatussa'adiah, Adnan
author_sort Halimatussa'adiah, Adnan
title Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
title_short Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
title_full Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
title_fullStr Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
title_full_unstemmed Sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
title_sort sensing properties of chitosan and chitosan-roselle film sensors on toluene concentrations detection
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41303
_version_ 1643799630165573632
score 13.222552

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