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undergraduate thesis
Biokatalitička sinteza nanočestica
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:084636
Brleković, Filip
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Brleković, F. (2015). Biokatalitička sinteza nanočestica (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:084636

Brleković, Filip. "Biokatalitička sinteza nanočestica." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:084636

Brleković, Filip. "Biokatalitička sinteza nanočestica." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:084636

Brleković, F. (2015). 'Biokatalitička sinteza nanočestica', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:084636

Brleković F. Biokatalitička sinteza nanočestica [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:084636

F. Brleković, "Biokatalitička sinteza nanočestica", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:084636

Metadata
TitleBiokatalitička sinteza nanočestica
Title (english)Biocatalytical synthesis of nanoparticles
AuthorFilip Brleković
MentorAna Vrsalović Presečki (mentor)
Committee memberAna Vrsalović Presečki (predsjednik povjerenstva)
Committee memberĐurđa Vasić-Rački (član povjerenstva)
Committee memberNenad Bolf (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Reaction Engineering
Abstract
Biokatalitička sinteza nanočestica je proces nastanka čestica reda veličine 100nm ili manje, u reakcijama u kojima kao katalizator služi enzim (biokatalizator). U ovome radu sintetizirane su nanočestice kalcijevog karbonata (CaCO3) pomoću produkta biokatalitičke hidrolize uree uz enzim ureazu. Sinteza nanočestica provedena je u redestiliranoj vodi pri temperaturi od T = 30 °C i T = 40 °C dodavanjem soli kalcijevog klorida u otopinu u kojoj se provodi reakcija hidrolize uree uz enzim ureazu. Ispitana je kinetika hidrolize uree uz ureazu pri temperaturi od T = 30 °C i T = 40 °C u redestiliranoj vodi te je opisana Michealis-Menteničinim kinetičkim modelom s uključenom nekompetitivnom inhibicijom kalcijevim ionima. Postavljen je matematički model sinteze nanočestica, te je validiran u kotlastom reaktoru. Sintetizirane nanočestice karakterizirane su pomoću pretražnog elektronskog mikroskopa. Na temelju snimljenih prikaza određene su njihove prosječne veličine.
Abstract (english)
Biocatalytic synthesis of nanoparticles is the formation of particles having one or more dimensions of the order of 100nm or less, in the reaction in which an enzyme is used as catalyst (biocatalyst). In this work the synthesis of nanoparticles of calcium carbonate (CaCO3) was carried out using the products of biocatalytic hydrolysis of urea in the presence of an enzyme urease. Synthesis of nanoparticles was carried out in redistilled water at a temperature of T = 30 °C and T = 40 °C by adding calcium chloride salt in a solution in which hydrolysis reaction of urea with a urease enzyme was conducted. The kinetics of the hydrolysis of urea with urease at a temperature of T = 30 °C and T = 40 °C in redistilled water is described by one-substrate Michaelis-Menten kinetic model with non-competitive inhibition of calcium ions. Mathematical model of the process was proposed and it was validated by the experimental results gathered in the batch reactor. The synthesized nanoparticles were characterized by SEM (scanning electron microscope). Based on the pictures taken by the SEM the average size of particles was determined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:084636
Study programmeTitle: Chemical Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2016-12-03 14:47:26