20.500.12556/DKUM-65392 Chemical modification and characterization of poly(ethylene terephthalate) surfaces for collagen immobilization The functionalization of poly(ethylene terephthalate) (PET) surface films by reactions with multifunctional amines such as triethylenetetramine (TETA), and tetraethylenepentamine (TEPA) was investigated. For the functionalization of PET films surface we used a new way of treatment, a 'sandwich model'. Physical-chemical properties of functionalized PET films were analysed. Qualitative and quantitative determination of the introduced amine groups were examined by means of Fourier Transform Infrared Attenuated Total Reflexion(FTIR - ATR), X-ray photoelectron spectroscopy (XPS), and potentiometric titration. Gained wetting properties were determined by using contact angle measurements and thoroughly analysed by acid-base approach. In addition, surface topography was investigated by atomic force microscopy (AFM). The amount of the introduced amino groups after TETA incorporation has been found to be two times higher as compared to TEPA. Wetting properties were significantly improved after aminolysis. Surface free energy was higher for PET - TETA treated film than that observed for PET - TEPA treated which is in accordance with titration results. The collagen immobilization onto PET treated films was evidenced by using AFM and subsequently by using XPS. PET aminolysis AFM collagen immobilization PET aminoliza mikroskopija na atomsko silo imobilizacija kolagena true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-04-03 13:59:04 2017-04-03 14:00:16 2022-07-08 03:07:57 2019-07-11 15:16:49 2013 0 0 str. 1786-1798 št. 11 Letn. 11 2013 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1895-1066 544.7 11055638 17094678 10.2478/s11532-013-0319-z 1895-1066 URN:SI:UM:DK:1ERURNVN Open_Chemistry_2013_Drobota_et_al._Chemical_modification_and_characterization_of_poly(ethylene_terephthalate)_surfaces_for_collagen_immo.pdf Open_Chemistry_2013_Drobota_et_al._Chemical_modification_and_characterization_of_poly(ethylene_terephthalate)_surfaces_for_collagen_immo.pdf 1 56779F3C9AE63700BB83C6A2F0355A47 b68bae89a9312dbd50a4143b76a9592bc1438c78c1881c4469db87312fd16b2f 0e59ddc9-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=110524 http://www.degruyter.com/view/j/chem.2013.11.issue-11/s11532-013-0319-z/s11532-013-0319-z.xml 1 https://dk.um.si/Dokument.php?lang=slv&id=110523 Fakulteta za strojništvo 0 0 0