prikaz prve stranice dokumenta Priprema i primjena tankog hidrogelnog filma u optičkim senzorima
  Download
PDF 2.42 MB
master's thesis
Priprema i primjena tankog hidrogelnog filma u optičkim senzorima
2021. urn:nbn:hr:182:691173
Petrić, Robert
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

Cite this document

Petrić, R. (2021). Priprema i primjena tankog hidrogelnog filma u optičkim senzorima (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:691173

Petrić, Robert. "Priprema i primjena tankog hidrogelnog filma u optičkim senzorima." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:691173

Petrić, Robert. "Priprema i primjena tankog hidrogelnog filma u optičkim senzorima." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:691173

Petrić, R. (2021). 'Priprema i primjena tankog hidrogelnog filma u optičkim senzorima', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:691173

Petrić R. Priprema i primjena tankog hidrogelnog filma u optičkim senzorima [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2021 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:182:691173

R. Petrić, "Priprema i primjena tankog hidrogelnog filma u optičkim senzorima", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:182:691173

Please login to the repository to save this object to your list.
Metadata
TitlePriprema i primjena tankog hidrogelnog filma u optičkim senzorima
Title (english)Preparation and Application of thin hydrogel film in optical sensors
AuthorRobert Petrić
MentorAleksandar Sečenji (mentor)
Committee memberMartina Medvidović-Kosanović (predsjednik povjerenstva)
Committee memberAleksandar Sečenji (član povjerenstva)
Committee memberAnamarija Stanković (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2021-07-23, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Applied Chemistry
Abstract
Otapanjem kitozana u otopini octene kiseline te umrežavanjem pomoću 2,2'-bipiridin-4,4'-dikarboksilne kiseline dobiva se hidrogel koji na svakom mjestu umreženja posjeduje bidentantni N-donorni ligand koji ima sposobnost kompleksiranja Fe iona. Dodatkom Fe(II) soli u vodenoj otopini dolazi do kompleksiranja željeza unutar hidrogela. Dodatkom pomoćnog liganda, kao što je TPTZ (2,4,6-tri(2-pyridyl)-1,3,5-triazine), hidrogelu koji unutar svoje mreže posjeduje kompleksirano željezo dolazi do nastajanja plavo obojenog hidrogel-(2,2'-bipiridin-Fe(II)-TPTZ) kompleksa. Djelovanjem oksidansa, kao što je H2O2, na takav hidrogel dolazi do njegovog obezbojenja, a redukcijskim djelovanjem antioksidanasa ponovno nastaje plavo obojenje. Ova reakcija oksidacije-redukcije unutar dobivenog hidrogela je reverzibilna.
Abstract (english)
By dissolving chitosan within acetic acid solution followed by crosslinking via 2,2'-bipyridine-4,4'-dicarboxylic acid a hydrogel containing a bidentate nitrogen ligand at each crosslink site is formed which has the ability to bind Fe ions. Addition of Fe(II) salts in aqueous solution creates an iron complex within the hydrogel. An additional ligand such as TPTZ (2,4,6-tri(2-pyridyl)-1,3,5-triazine) has the ability to bind to iron which is already bound within the hydrogel forming a blue colored hydrogel-(2,2'-bipyridine-Fe(II)-TPTZ) complex. Oxidation said complex via oxidizing agent such as hydrogen peroxide induces loss of color after which it is possible to again reduce the colorless Fe(III)-TPTZ complex via an antioxidative agent that results in return of the blue color. The Aforementioned oxidation-reduction reaction has been proven to be reversible.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:691173
Study programmeTitle: Graduate University Study of Chemistry; research program; specializations in: Research program
Course: Research program
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-08-02 09:35:29