Antibacterial Activity of Honey/Chitosan Nanofibers Loaded with Capsaicin and Gold Nanoparticles for Wound Dressing

oleh: Sharafaldin Al-Musawi, Salim Albukhaty, Hassan Al-Karagoly, Ghassan M. Sulaiman, Mona S. Alwahibi, Yaser Hassan Dewir, Dina A. Soliman, Humaira Rizwana

Format: Article
Diterbitkan: MDPI AG 2020-10-01

Deskripsi

This paper describes the preparation, characterization, and evaluation of honey/tripolyphosphate (TPP)/chitosan (HTCs) nanofibers loaded with capsaicin derived from the natural extract of hot pepper (<i>Capsicum annuum</i><i>L</i>.) and loaded with gold nanoparticles (AuNPs) as biocompatible antimicrobial nanofibrous wound bandages in topical skin treatments. The capsaicin and AuNPs were packed within HTCs in HTCs-capsaicin, HTCs-AuNP, and HTCs-AuNPs/capsaicin nanofibrous mats. In vitro antibacterial testing against <i>Pasteurella multocida, Klebsiella rhinoscleromatis,</i><i>Staphylococcus pyogenes,</i> and <i>Vibrio vulnificus</i> was conducted in comparison with difloxacin and chloramphenicol antibiotics. Cell viability and proliferation of the developed nanofibers were evaluated using an MTT assay. Finally, in vivo study of the wound-closure process was performed on New Zealand white rabbits. The results indicate that HTCs-capsaicin and HTCs-AuNPs are suitable in inhibiting bacterial growth compared with HTCs and HTCs-capsaicin/AuNP nanofibers and antibiotics (<i>P</i> < 0.01). The MTT assay demonstrates that the nanofibrous mats increased cell proliferation compared with the untreated control (<i>P</i> < 0.01). In vivo results show that the developed mats enhanced the wound-closure rate more effectively than the control samples. The novel nanofibrous wound dressings provide a relatively rapid and efficacious wound-healing ability, making the obtained nanofibers promising candidates for the development of improved bandage materials.