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Regenerated chitin fibers reinforced with bacterial cellulose nanocrystals as suture biomaterials

Wu, H; Williams, GR; Wu, J; Wu, J; Niu, S; Li, H; Wang, H; (2018) Regenerated chitin fibers reinforced with bacterial cellulose nanocrystals as suture biomaterials. Carbohydrate Polymers , 180 pp. 304-313. 10.1016/j.carbpol.2017.10.022. Green open access

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Abstract

The objective of this work was to prepare a novel filament with good biocompatibility and mechanical performance which can meet the demands of surgical sutures. Bacterial cellulose nanocrystals (BCNCs) were used to reinforce regenerated chitin (RC) fibers to form BCNC/RC filaments. Mechanical performance measurements demonstrated that the strength of the BCNC/RC filament was increased dramatically over the RC analogue. A yarn made of 30 BCNC-loaded fibers also achieved satisfactory mechanical performance, with a knot-pull tensile strength of 9.8 ± 0.6 N. Enzymatic degradation studies showed the BCNC/RC materials to have good biodegradability, the rate of which can be tuned by varying the concentration of BCNCs in the yarn. The RC and the BCNC/RC materials had no cytotoxicity and can promote cell proliferation. In vivo experiments on mice demonstrated that suturing with the BCNC/RC yarn can promote wound healing without obvious adverse effects.

Type: Article
Title: Regenerated chitin fibers reinforced with bacterial cellulose nanocrystals as suture biomaterials
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.carbpol.2017.10.022
Publisher version: http://dx.doi.org/10.1016/j.carbpol.2017.10.022
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Regenerated chitin fiber, Bacterial cellulose nanocrystals, Suture biomaterial, Biocompatibility
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy > Pharmaceutics
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10024841
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