Effect of chitosan acetate bandage on wound healing in infected and noninfected wounds in mice

Marina Burkatovskaya, Ana P. Castano, Tatiana N. Demidova-Rice, George P. Tegos, Michael R. Hamblin

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)


HemCon® bandage is an engineered chitosan acetate preparation designed as a hemostatic dressing, and is under investigation as a topical antimicrobial dressing. We studied its effects on healing of excisional wounds that were or were not infected with Staphylococcus aureus, in normal mice or mice previously pretreated with cyclophosphamide (CY). CY significantly suppressed wound healing in both the early and later stages, while S. aureus alone significantly stimulated wound healing in the early stages by preventing the initial wound expansion. CY plus S. aureus showed an advantage in early stages by preventing expansion, but a significant slowing of wound healing in later stages. In order to study the conflicting clamping and stimulating effects of chitosan acetate bandage on normal wounds, we removed the bandage from wounds at times after application ranging from 1 hour to 9 days. Three days application gave the earliest wound closure, and all application times gave a faster healing slope after removal compared with control wounds. Chitosan acetate bandage reduced the number of inflammatory cells in the wound at days 2 and 4, and had an overall beneficial effect on wound healing especially during the early period where its antimicrobial effect is most important.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalWound Repair and Regeneration
Issue number3
Publication statusPublished - May 2008
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Dermatology


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