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undergraduate thesis
Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2017. urn:nbn:hr:159:744028
Sačer, Martin
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Chemistry and Biochemistry
Laboratory for General and Inorganic Chemistry and Electroanalysis

Institutional repository: Repository of the Faculty of Food Technology and Biotechnology

Cite this document

Sačer, M. (2017). Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:744028

Sačer, Martin. "Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2017. https://urn.nsk.hr/urn:nbn:hr:159:744028

Sačer, Martin. "Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2017. https://urn.nsk.hr/urn:nbn:hr:159:744028

Sačer, M. (2017). 'Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:744028

Sačer M. Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2017 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:159:744028

M. Sačer, "Galvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:159:744028

Metadata
TitleGalvanski članak s katalitičkom elektrodom selektivnom na vodikov peroksid kao platforma za autonomne biosenzore
Title (english)Galvanic cell with catalytic cathode as a platform for self-powered autonomous biosensors
AuthorMartin Sačer
MentorDamir Iveković (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Chemistry and Biochemistry)
(Laboratory for General and Inorganic Chemistry and Electroanalysis)
Zagreb
Defense date and country2017-09-19, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Enzimski biosenzori danas predstavljaju alternativu već ustaljenim načinima kvalitativne i kvantitavine analize poput titracije, spektrofometrije, kromatografije i dr. Amperometrijski senzori omogućuju visoku selektivnost prema analitu, a njihova primjenjivost mogla bi se još više proširiti izvedbama senzora koji ne zahtjevaju posebno električno napajanje, već se električna struja u njima generira kao posljedica detekcije analita. Polazeći od toga, cilj ovog rada bio je konstruirati galvanski članak s katodom selektivnom na vodikov peroksid, koji bi u kombinaciji s prikladnom oksidazom mogao funkcionirati kao autonoman biosenzor koji u svom radu ne zahtijeva vanjsko električno napajanje. U tu je svrhu napravljena vodljiva tinta modificirana sa željezovim(III) heksacijanoferatom(II) i deponirana na grafitnu elektrodu koja je funkcionirala kao katoda, dok je anoda galvanskog članka načinjena od samoljepljive aluminijske folije. Elektrokemijska svojstva katode i anode istražena su cikličkom voltametrijom te je određen odziv konstruiranog članka pri različitim koncentracijama vodikova peroksida.
Abstract (english)
Enzyme biosensors today stand as the alternative to the more traditional ways of qualitative and quantitative food analysis, such as titration, spectrophotometry, chromatography and others. While using amperometric biosensors, high analyte selectivity is provided, but the applicability of biosensors would be expanded even more, if they could be constructed as autonomous devices that do not require external sources of electricity. One of the possible ways to achieve this goal is to construct biosensors in which the electricity is generated as a part of the analyte detection and determination process. In line with this, the purpose of this work was to construct a galvanic cell with cathode selective to hydrogen peroxide, which could be, in conjunction with appropriate oxidase enzyme, employed as an autonomous, self-powered biosensor. A conducting ink modified with iron(III) hexacyanoferrate(II) was developed and applied in construction of galvanic cell cathode, while the cell anode was fabricated from adhesive aluminum foil. Electrochemical properties of thus fabricated anode and cathode were determined by cyclic voltammetry, and potential response of the constructed galvanic cell towards hydrogen peroxide was evaluated.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:744028
Study programmeTitle: Food Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2017-10-11 10:25:18