Abstract
Wound healing is a huge challenge worldwide causing enormous financial burden on healthcare systems. Although conventional wound dressings, such as hydrogels, bandages, and foams, facilitate wound healing, they lack the ability to monitor the wound healing process. Here, hydrogel wound dressings in the form of auxetic structures were developed by a digital light processing (DLP) printer. Paper-based colorimetric sensors were incorporated with the 3D printed auxetic hydrogel skin wound patches for monitoring the wound status through detecting pH levels and glucose concentrations. The paper-based sensors are profoundly cost-effective and were found to be capable of monitoring the wound's conditions. The developed wound dressings may assist in preventing escalation of the acute wounds into chronic stages in diabetics.
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