Abstract
Recent advances in process chemistry have made it possible to make chitosan and chitin nanofibril materials more flexible and useful for the development of new biorelated products. In this study, the effectiveness of three chitin nanofibril/chitosan glycolate-based preparations, a spray (Chit-A), a gel (Chit-B), and a gauze (Chit-C), in healing cutaneous lesions are assessed macroscopically and by light microscopy immunohistochemistry. These evaluations are compared to the results obtained using a laser co-treatment. The wound repair provided by the three preparations is clearly evident even without the synergistic effect of the laser co-treatment. These results confirm the effectiveness of chitin nanofibril/chitosan glycolate-based products in restoring subcutaneous architecture. The spray seems to be most effective in healing superficial lesions, including extensive ones; the gel is more effective in repairing shallow lesions as well as an aesthetic factor while the gauze is effective in slow-healing dermo-epidermal wounds.
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