In vivo evaluation of an ultra-thin polycaprolactone film as a wound dressing
Ng, Kee Woei , Achuth, Hosur , Moochhala, Shabbir , Lim, Thiam Chye , & Hutmacher, Dietmar (2007) In vivo evaluation of an ultra-thin polycaprolactone film as a wound dressing. Journal of Biomaterials Science. Polymer Edition, 18(7), pp. 925-938.
The use of ultra-thin films as dressings for cutaneous wounds could prove advantageous in terms of better conformity to wound topography and improved vapour transmission. For this purpose, ultra-thin poly(epsilon-caprolactone) (PCL) films of 5-15 microm thickness were fabricated via a biaxial stretching technique. To evaluate their in vivo biocompatibility and feasibility as an external wound dressing, PCL films were applied over full and partial-thickness wounds in rat and pig models. Different groups of PCL films were used: untreated, NaOH-treated, untreated with fibrin, NaOH-treated with perforations, and NaOH-treated with fibrin and S-nitrosoglutathione. Wounds with no external dressings were used as controls. Wound contraction rate, histology and biomechanical analyses were carried out. Wounds re-epithelialized completely at a comparable rate. Formation of a neo-dermal layer and re-epithelialization were observed in all the wounds. A lower level of fibrosis was observed when PCL films were used, compared to the control wounds. Ultimate tensile strength of the regenerated tissue in rats reached 50-60% of that in native rat skin. Results indicated that biaxially-stretched PCL films did not induce inflammatory reactions when used in vivo as a wound dressing and supported the normal wound healing process in full and partial-thickness wounds.
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|Item Type:||Journal Article|
|Keywords:||FILMS; POLYCAPROLACTONE; WOUND DRESSING; WOUND HEALING|
|Subjects:||Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > OTHER BIOLOGICAL SCIENCES (069900)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomedical Engineering not elsewhere classified (090399)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
|Deposited On:||17 Nov 2010 10:01|
|Last Modified:||29 Feb 2012 23:57|
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