Surface functionalization of Ti6Al4V with an extract of polyphenols from red grape pomace
نویسندگان
چکیده
The focus of the paper is on effectiveness a functionalization process with natural polyphenols chemically treated and bioactive Ti6Al4V alloy, grafting mechanism, redox/scavenging activity grafted biomolecules. Polyphenols (phenolic acids, flavonoids, condensed tannins) are extracted from organic red grape pomace. performed at pH = 7.4 addition calcium ions, which act as bridge between substrate polyphenols. presence, amount (semi-quantitative), distribution, release, type bonding to surface have been assessed. functionalized samples homogeneous distribution continuous layer micro-sized agglomerates. maintain redox chemical radical scavenging ability. A fraction released into water in one day, while firmly remains even after four weeks. complete release can occur case an environment 4–5 (e.g. inflammation). surfaces be sterilized by gamma irradiation without significant damage
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ژورنال
عنوان ژورنال: Materials & Design
سال: 2021
ISSN: ['1873-4197', '0264-1275']
DOI: https://doi.org/10.1016/j.matdes.2021.109776