Papers

Peer-reviewed
Oct, 2013

Effect of chitosan-gluconic acid conjugate/poly(vinyl alcohol) cryogels as wound dressing on partial-thickness wounds in diabetic rats

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
  • Takayuki Takei
  • ,
  • Hideki Nakahara
  • ,
  • Sadao Tanaka
  • ,
  • Hiroto Nishimata
  • ,
  • Masahiro Yoshida
  • ,
  • Koei Kawakami

Volume
24
Number
10
First page
2479
Last page
2487
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1007/s10856-013-4991-5
Publisher
SPRINGER

We previously developed chitosan cryogels from chitosan-gluconic acid conjugate without using toxic additives for wound care. In this study, we improved physiological characteristics of the previous cryogels by incorporating poly(vinyl alcohol) that also form cryogels. Mechanical strength of the cryogels was more than two times higher than that of the previous cryogels. Furthermore, the incorporation of poly(vinyl alcohol) enhanced water retention and resistance to degradation of the gels by lysozyme. The cryogels retained the favorable biological properties of the previous cryogels that they accelerate infiltration of inflammatory cells into wound sites. Time period for repairing 50 % of initial area of partial-thickness skin wound treated with the cryogels (4.0 +/- A 1.1 days) was shorter than those with gauze (6.5 +/- A 0.3 days) or a commercial hydrogel dressing (5.7 +/- A 0.3 days). Finally, we confirmed that incorporation of basic fibroblast growth factor into the cryogels was effective to further accelerate wound healing (2.7 +/- A 1.0 days). These results demonstrate that the cryogels in this study are promising for wound care.

Link information
DOI
https://doi.org/10.1007/s10856-013-4991-5
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/23801501
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000324672900017&DestApp=WOS_CPL
ID information
  • DOI : 10.1007/s10856-013-4991-5
  • ISSN : 0957-4530
  • Pubmed ID : 23801501
  • Web of Science ID : WOS:000324672900017

Export
BibTeX RIS