Silver nanoparticles loaded triple-layered cellulose-acetate based multifunctional dressing for wound healing.

Autor: Dugam S; Department of Pharmaceutical sciences and technology, Institute of Chemical Technology, Mumbai, India., Jain R; Department of Biological sciences and biotechnology, Institute of Chemical Technology, Mumbai, India. Electronic address: rd.jain@ictmumbai.edu.in., Dandekar P; Department of Pharmaceutical sciences and technology, Institute of Chemical Technology, Mumbai, India. Electronic address: pd.jain@ictmumbai.edu.in.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Sep; Vol. 276 (Pt 1), pp. 133837. Date of Electronic Publication: 2024 Jul 14.
DOI: 10.1016/j.ijbiomac.2024.133837
Abstrakt: Chronic wounds present considerable challenges which delay their effective healing. Currently, there are several biomaterial-based wound dressings available for healing diverse wound types. However, most of commercial wound dressings are too expensive to be affordable to the patients belonging to the middle and lower socioeconomic strata of the society. Thus, in this investigation affordable triple layered nanofibrous bandages were fabricated using the layer-by-layer approach. Here, the topmost layer comprised of a hydrophilic poly vinyl alcohol layer, cross-linked with citric acid. The middle layer comprising of cellulose acetate was loaded with silver nanoparticles as an antibacterial agent, while the lowermost layer was fabricated using hydrophobic polycaprolactone. The triple-layered nanofibrous bandages having a nano-topography, exhibited a smooth, uniform and bead-free morphology, with the nanofiber diameter ranging between 200 and 300 nm. The nanofibers demonstrated excellent wettability, slow in vitro degradation, controlled release of nano‑silver and potent antibacterial activity against Gram-negative (E.coli) and Gram-positive (S. aureus) bacteria. The fabricated bandages had excellent mechanical strength upto 12.72 ± 0.790 M. Pa, which was suitable for biomedical and tissue engineering applications. The bandage demonstrated excellent in vitro hemocompatibility and biocompatibility. In vivo excisional wound contraction, along with H and E and Masson's Trichrome staining further confirmed the potential of the nanofibrous bandage for full-thickness wound healing. Pre-clinical investigations thus indicated the possibility of further evaluating the triple-layered nanofibrous dressing in clinical settings.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that would influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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