Skip to Main content Skip to Navigation
Theses

Biofonctionnalisation de structures fibreuses en PET avec des molécules d'origine biologique

Abstract : This study aim to the functionalization of poly (ethylene terephthalate) (PET) fabric using active biomolecules. Curcumin, Nisin and Alginate, were applied to the PET fabric to give it an antibacterial activity. Various methods have been used, active molecules were applied by padding, diffusion and/or adsorption, and surface treatment techniques such as plasma and UV-Excimer. After the functionalization, physical, chemical and biological characterizations were carried out using various techniques such as: Wettability, AFM, XPS, Colorimetry, UV-visible Spectroscopy, Spectrofluorimetry ... On the other hand, the properties of durability of treatment were evaluated. This study highlights the difficulties associated with the use of biomolecules. In particular, their use is difficult because of their lack of stability as a function of external parameters: temperature, pH, UV... However, these molecules have interesting antibacterial properties. We have studied different methods of active molecules attachment on textiles: diffusion in the fiber, surface adsorption and inclusion in a hydrogel. We show that the antibacterial property of the treatment is due to the active molecules release, but also due to more complex mechanisms involving the molecules degradation products. The kinetics of release can be controlled by the parameters used for the treatment.
Complete list of metadata

https://hal-uphf.archives-ouvertes.fr/tel-03004272
Contributor : Aurélien Vicentini Connect in order to contact the contributor
Submitted on : Friday, November 13, 2020 - 3:36:52 PM
Last modification on : Monday, December 7, 2020 - 10:16:14 AM
Long-term archiving on: : Sunday, February 14, 2021 - 7:23:15 PM

File

2010VALE0015_KERKENI_AHMED.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-03004272, version 1

Collections

Citation

Ahmed Kerkeni. Biofonctionnalisation de structures fibreuses en PET avec des molécules d'origine biologique. Sciences de l'ingénieur [physics]. Université de Valenciennes et du Hainaut-Cambrésis, 2010. Français. ⟨NNT : 2010VALE0015⟩. ⟨tel-03004272⟩

Share

Metrics

Record views

33

Files downloads

29