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Surface modification of polyester fabric using plasma-dendrimer for robust immobilization of glucose oxidase enzyme
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0003-2820-1333
Soochow University.
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2019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, article id 15730Article in journal (Refereed) Published
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

Robust immobilization of glucose oxidase (GOx) enzyme was achieved on poly(ethylene terephthalate) nonwoven fabric (PN) after integration of favourable surface functional groups through plasma treatments [atmospheric pressure-AP or cold remote plasma-CRP (N2 + O2)] and/or chemical grafting of hyperbranched dendrimers [poly-(ethylene glycol)-OH or poly-(amidoamine)]. Absorption, stability, catalytic behavior of immobilized enzymes and reusability of resultant fibrous bio-catalysts were comparatively studied. Full characterization of PN before and after respective modifications was carried out by various analytical, instrumental and arithmetic techniques. Results showed that modified polyester having amine terminal functional groups pledged better surface property providing up to 31% enzyme loading, and 81% active immobilized enzymes. The activity of the enzyme was measured in terms of interaction aptitude of GOx in a given time to produce hydrogen peroxide using colorimetric assay. The immobilized GOx retained 50% of its original activity after being reused six (06) times and exhibited improved stability compared with the free enzyme in relation to temperature. The reaction kinetics, loading efficiency, leaching, and reusability analysis of enzyme allowed drawing a parallel to the type of organic moiety integrated during GOx immobilization. In addition, resultant fibrous bio-catalysts showed substantial antibacterial activity against pathogenic bacteria strains (Staphylococcus epidermidis and Escherichia coli) in the presence of oxygen and glucose. These results are of great importance because they provide proof-of-concept for robust immobilization of enzymes on surface-modified fibrous polyester fabric for potential bio-industrial applications.

Place, publisher, year, edition, pages
Germany: Nature Publishing Group, 2019. article id 15730
Keywords [en]
Polyester fabric, surface modification, plasma treatment, poly-(amidoamine) dendrimer, glucose oxidase enzyme, robust immobilization, antibacterial activity
National Category
Natural Sciences
Research subject
Textiles and Fashion (General)
Identifiers
URN: urn:nbn:se:hb:diva-21907DOI: 10.1038/s41598-019-52087-8OAI: oai:DiVA.org:hb-21907DiVA, id: diva2:1367009
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SMDTexAvailable from: 2019-10-31 Created: 2019-10-31 Last updated: 2019-11-08Bibliographically approved

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Morshed, Mohammad NeazNierstrasz, Vincent

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