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...

Full description

Saved in:

Bibliographic Details
Main Author:	Halimatussa'adiah, Adnan
Format:	Thesis
Language:	English
Subjects:	Chitosan sensor (CS) Chitosanroselle sensors (CRSs) Thin film sensor Thin film Sensors Chitosan
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/2/Full%20text.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-unimap-41303
record_format	uketd_dc
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 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. Universiti Malaysia Perlis (UniMAP) 2013-10 Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41303 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/1/Page%201-24.pdf 016509c0fcddfcae2c34a2a36cbeba5c http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/2/Full%20text.pdf a6c24ea01c66f653c5123c30eb1f5794 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Chitosan sensor (CS) Chitosanroselle sensors (CRSs) Thin film sensor Thin film Sensors Chitosan School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Dr. Irwana Nainggolan
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.
format	Thesis
author	Halimatussa'adiah, Adnan
author_facet	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
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/41303/2/Full%20text.pdf
_version_	1747836814746451968

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

Similar Items