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dc.creatorVasilenko, Maria
dc.date.accessioned2012-12-14T07:56:24Z
dc.date.available2012-12-14T07:56:24Z
dc.date.issued2012-12-14
dc.identifier.urihttp://dspace.cc.tut.fi/dpub/handle/123456789/21300
dc.description.abstractThe quality of bioslurries that are used in industrial production and agriculture need to be watched very closely to avoid spreading of contaminants on area and poisoning of humans and animals. Because heavy metals are very stable and toxic in many chemical compositions, their amount should be estimated very thoroughly. A new approach that involved biosensors was tested in this study. Because the slurries are complex non-unified matrices which composed of two phases – solid and liquid, the cell behavior can varies a lot from the one that explained in water and so the estimation of ion concentration can be not reliable. It was shown that the cell actually behave different in the slurries. Normally the dissolved compounds suppress the biosensor activity and, in the same time, the ions in the particles can released during the tests and interfere with the signal. So the concentration and the pretreatment of the samples should be chosen for every particular biosensor. Additionally, there was an attempt to measure the heavy metal amount and to compare it with the results that were obtained on AAS. The data declares that the bioavailability may differ in the matrices and so the signals of biosensors vary even between the samples with the same total heavy metal amount.en
dc.format.extentix, 88 s.
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.rightsThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.titleFeasibility of using biosensors for heavy metal detection in complex matrices such as bio-slurriesen
dc.identifier.urnURN:NBN:fi:tty-201212141372
dc.contributor.laitosKemian ja biotekniikan laitos – Department of Chemistry and Bioengineeringen
dc.contributor.tiedekuntaLuonnontieteiden ja ympäristötekniikan tiedekunta – Faculty of Science and Environmental Engineering
dc.contributor.yliopistoTampereen teknillinen yliopisto - Tampere University of Technologyfi
dc.programmeMaster's Degree Programme in Science and Bioengineeringen
dc.date.published2012-12-05
dc.contributor.laitoskoodikeb
dc.contributor.thesisadvisorLepisto, Raghida
dc.contributor.degreesupervisorKarp, Matti
dc.type.ontasotDiplomityö - Master's thesis


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