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dc.contributor.advisorElbüken, Çağlar
dc.contributor.authorİşgör, Pelin Kübra
dc.date.accessioned2016-05-02T13:27:18Z
dc.date.available2016-05-02T13:27:18Z
dc.date.copyright2015-09
dc.date.issued2015-09
dc.date.submitted06-09-2015
dc.identifier.urihttp://hdl.handle.net/11693/29034
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (leaves 104-110).en_US
dc.descriptionThesis (M.S.): Bilkent University, Materials Science and Nanotechnology Program, İhsan Doğramacı Bilkent University, 2015.en_US
dc.description.abstractMicrodroplet based microfluidic systems have gained a lot of attention during the last decades due to enhanced analytical performance, low cost and high-throughput. One of the fundamental requirements of a droplet based system is detection of droplets. Capacitive sensing of droplets have been used for droplet detection, however they lack the required sensitivity for droplet content detection. Here a portable, low cost, scalable and highly sensitive droplet content detection system is demonstrated using coplanar electrodes. The designed microfluidic system enables droplet content modification on the run. While changing droplet content, i.e., dielectric content, capacitive signal amplitude is measured. The system resolves 3 unit of dielectric permittivity. 5% material change in droplet is detected. Following droplet content detection, sorting of laden droplets enables further experimentation with material of interest in the droplet. Dielectrophoresis is a commonly used method for droplet sorting. Dielectrophoretic sorting of droplets is demonstrated using two dimensional and there dimensional electrodes. Low cost and portable electronic components are integrated with microfluidic devices for droplet content detection and sorting using microfabricated electrodes. The cost and signal to noise ratio of the system are aimed to be decreased by implementing detection and sorting system on a printed circuit board. Sensing and sorting electrodes are fabricated and all of the electronic components are placed on a printed circuit board. Microchannels are reversibly placed over electrodes, therefore the platform becomes reusable. This feature of the system enables various experimentation using microdroplets on the same base platform. This approach will lead to microfluidic systems that are programmable and easy-to-use by means of off-the-shelf and low cost electronic components.en_US
dc.description.statementofresponsibilityby Pelin Kübra İşgör.en_US
dc.format.extentxviii, 110 leaves : illustrations.en_US
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDroplet content sensingen_US
dc.subjectDroplet sortingen_US
dc.subjectPrinted circuit boarden_US
dc.subjectIntegrated circuitsen_US
dc.subjectCoplanar electrodesen_US
dc.subjectDielectrophoresisen_US
dc.titleIntegrated microfluidic systems for droplet detection and sortingen_US
dc.title.alternativeDamlacık tanıma ve ayrıştırma için entegre mikroakışkan sistemleren_US
dc.typeThesisen_US
dc.departmentGraduate Program in Materials Science and Nanotechnologyen_US
dc.publisherBilkent Universityen_US
dc.description.degreeM.S.en_US
dc.identifier.itemidB151253
dc.embargo.release2017-09-07


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