Modeling and control of quartz crystal operated in liquid for bio-sensing application

Nowadays the applications of sensors are a very promising research field since they find application in many different areas. Biosensors are an increasingly important technology in the detection of compounds ranging from pesticides to biological weapons. Typically, biosensors consist of a biol...

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Main Author:	A. Kadhim Fahad, Abu Abdullah
Format:	Thesis
Language:	English English English
Published:	2014
Subjects:	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics
Online Access:	http://eprints.uthm.edu.my/1424/1/24p%20ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD.pdf http://eprints.uthm.edu.my/1424/2/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1424/3/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20WATERMARK.pdf
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spelling	my-uthm-ep.14242021-10-03T06:51:41Z Modeling and control of quartz crystal operated in liquid for bio-sensing application 2014-12 A. Kadhim Fahad, Abu Abdullah TK Electrical engineering. Electronics Nuclear engineering TK7800-8360 Electronics Nowadays the applications of sensors are a very promising research field since they find application in many different areas. Biosensors are an increasingly important technology in the detection of compounds ranging from pesticides to biological weapons. Typically, biosensors consist of a biological macromolecule that is immobilized on the surface of a signal transducer. As the macromolecule binds specifically to the ligand being detected, the signal transducer can measure a physical change due to the binding event. One promising type of detector is the Quartz Crystal Microbalance (QCM). The QCM is a piezoelectric mass-sensing device. A QCM device works by sending an electrical signal through a gold-plated quartz crystal, which causes a vibration at some resonant frequency. The QCM then measures the frequency of oscillation in the crystal. When used as a biosensor, the QCM can detect changes in frequency of the crystal due to changes in mass on the surface of the crystal. In the present work, all related equations and data base related to biosensors piezoelectric devices will be considered in the developed model. The model will describe biosensors limitations and capacities together with measurement resolutions and errors. The work will includes build of software program using Microsoft visual studio C# 2010.net frame work 4.0 and all available theoretical and empirical formulas and program data base will include the data for QCM sensors and resonance frequencies, this program will include all cases needed to be studied for the present work (bio sensing). Many sensors can be used for QCM, the present work will be limited to TSM sensors, and the proposed software for Bio-sensing. The frequency signal is detected by a frequency counter and processed electronically in a separate computer. The QCM sensor used is 19.5 MHZ using buffer media in the testing procedure. The result according to z-methods indicates that while the resonance frequencies increase the small amount of despite material can be easily detected. With the data extracted for (5 MHZ) sensors with effective area of 14 mm2 , the results show that as the change in resonance frequency increase as the despite material increase. The film thickness of deposit material increase as the natural frequencies of sensors decreased. 2014-12 Thesis http://eprints.uthm.edu.my/1424/ http://eprints.uthm.edu.my/1424/1/24p%20ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD.pdf text en public http://eprints.uthm.edu.my/1424/2/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1424/3/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics A. Kadhim Fahad, Abu Abdullah Modeling and control of quartz crystal operated in liquid for bio-sensing application
description	Nowadays the applications of sensors are a very promising research field since they find application in many different areas. Biosensors are an increasingly important technology in the detection of compounds ranging from pesticides to biological weapons. Typically, biosensors consist of a biological macromolecule that is immobilized on the surface of a signal transducer. As the macromolecule binds specifically to the ligand being detected, the signal transducer can measure a physical change due to the binding event. One promising type of detector is the Quartz Crystal Microbalance (QCM). The QCM is a piezoelectric mass-sensing device. A QCM device works by sending an electrical signal through a gold-plated quartz crystal, which causes a vibration at some resonant frequency. The QCM then measures the frequency of oscillation in the crystal. When used as a biosensor, the QCM can detect changes in frequency of the crystal due to changes in mass on the surface of the crystal. In the present work, all related equations and data base related to biosensors piezoelectric devices will be considered in the developed model. The model will describe biosensors limitations and capacities together with measurement resolutions and errors. The work will includes build of software program using Microsoft visual studio C# 2010.net frame work 4.0 and all available theoretical and empirical formulas and program data base will include the data for QCM sensors and resonance frequencies, this program will include all cases needed to be studied for the present work (bio sensing). Many sensors can be used for QCM, the present work will be limited to TSM sensors, and the proposed software for Bio-sensing. The frequency signal is detected by a frequency counter and processed electronically in a separate computer. The QCM sensor used is 19.5 MHZ using buffer media in the testing procedure. The result according to z-methods indicates that while the resonance frequencies increase the small amount of despite material can be easily detected. With the data extracted for (5 MHZ) sensors with effective area of 14 mm2 , the results show that as the change in resonance frequency increase as the despite material increase. The film thickness of deposit material increase as the natural frequencies of sensors decreased.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	A. Kadhim Fahad, Abu Abdullah
author_facet	A. Kadhim Fahad, Abu Abdullah
author_sort	A. Kadhim Fahad, Abu Abdullah
title	Modeling and control of quartz crystal operated in liquid for bio-sensing application
title_short	Modeling and control of quartz crystal operated in liquid for bio-sensing application
title_full	Modeling and control of quartz crystal operated in liquid for bio-sensing application
title_fullStr	Modeling and control of quartz crystal operated in liquid for bio-sensing application
title_full_unstemmed	Modeling and control of quartz crystal operated in liquid for bio-sensing application
title_sort	modeling and control of quartz crystal operated in liquid for bio-sensing application
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2014
url	http://eprints.uthm.edu.my/1424/1/24p%20ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD.pdf http://eprints.uthm.edu.my/1424/2/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1424/3/ABU%20ABDULLAH%20A.%20KADHIM%20FAHAD%20WATERMARK.pdf
_version_	1747830786372927488

Modeling and control of quartz crystal operated in liquid for bio-sensing application

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