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Tyrosinase-catalysed coating of wool fibres with different protein-based biomaterialsJus, Suzana ; Kokol, Vanja ; Gübitz, Georg M.The potential of tyrosinases to activate tyrosine residues of wool protein fibres for cross-linking with different materials like collagen, elastin and gelatine was assessed. Natural fibres like wool ... offer an excellent environment for the growth of micro-organisms when the conditions like moisture, oxygen and temperature are appropriate. Coating with collagen, a very useful biomaterial with bactericidal and fungicidal properties, could be used to improve the properties of wool-based materials, especially when applied in hygienically sensitive applications like in hospitals. Tyrosinases were shown to catalyse the oxidation of tyrosine residues in wool and wool hydrolysates as model substrates, as determined by UV-Vis spectroscopy. Structural differences of the surface were evident from the increase of the intensity in the NH bending and stretching regions in the spectra of NIR FT Raman analysis of the enzyme treated and grafted wool fibres. The durability of the coating was also shown by using FITC-labelled collagen that was bound to the wool fibres, even after severe washing. Additionally, antimicrobial properties were successfully imparted due to the collagen grafted on the wool fibres. The functional and mechanical properties of the treated wool fibres showed no significant changes.Vir: Journal of biomaterials science. Polymer edition. - ISSN 0920-5063 (20, no. 2, 2009, str. 253-269)Vrsta gradiva - članek, sestavni delLeto - 2009Jezik - angleškiCOBISS.SI-ID - 12917526
Avtor
Jus, Suzana |
Kokol, Vanja |
Gübitz, Georg M.
Teme
tekstilna vlakna |
volna |
encimi |
tirozinaza |
antimikrobne lastnosti |
proteini |
kemična modifikacija vlaken |
textile fibres |
wool |
protein substrates |
tyrosinase |
enzymatic coupling |
antimicrobial properties |
coating
vir: Journal of biomaterials science. Polymer edition. - ISSN 0920-5063 (20, no. 2, 2009, str. 253-269)
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Jus, Suzana | 22419 |
Kokol, Vanja | 15322 |
Gübitz, Georg M. |
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