Back to Search
Start Over
Antimicrobial and photophysical properties of chemically grafted ultra-high-molecular-weight polyethylene.
- Source :
-
Materials science & engineering. C, Materials for biological applications [Mater Sci Eng C Mater Biol Appl] 2019 Mar; Vol. 96, pp. 479-486. Date of Electronic Publication: 2018 Nov 28. - Publication Year :
- 2019
-
Abstract
- Surface of ultra-high-molecular-weight polyethylene (UHMWPE) was modified by chemical methods. Surface was firstly activated by Piranha solution and then grafted with selected amino-compounds (cysteamine, ethylenediamine or chitosan). The next step was grafting of some borane cluster compounds, highly fluorescent borane hydride cluster anti-B <subscript>18</subscript> H <subscript>22</subscript> or its thiolated derivative 4,4'-(HS) <subscript>2</subscript> -anti-B <subscript>18</subscript> H <subscript>20</subscript> . Polymer foils were studied using various methods to characterize surface chemistry (X-ray photoelectron spectroscopy), roughness and morphology (atomic force microscopy, scanning electron microscopy), chemistry and polarity (electrokinetic analysis), wettability (goniometry) and photophysical properties (UV-Vis spectroscopy) before and after modification steps. Subsequently some kinds of antimicrobial tests were performed. Immobilization of anti-B <subscript>18</subscript> H <subscript>22</subscript> in small quantities onto UHMWPE surface leads to materials with a luminescence. Samples grafted with borane clusters showed significant inhibition of growth for gram-positive bacteria (S. epidermidis). These approaches can be used for (i) luminophores on the base of polymers nanocomposites development and/or (ii) preparation of materials with antimicrobial effects.<br /> (Copyright © 2018 Elsevier B.V. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-0191
- Volume :
- 96
- Database :
- MEDLINE
- Journal :
- Materials science & engineering. C, Materials for biological applications
- Publication Type :
- Academic Journal
- Accession number :
- 30606557
- Full Text :
- https://doi.org/10.1016/j.msec.2018.11.066