AI Article Synopsis
- Diabetic wounds are chronic, infection-prone injuries that are hard to heal due to high blood sugar levels.
- Researchers developed a biodegradable hydrogel using a combination of dopamine-modified pectin and oxidized carboxymethyl cellulose to create a wound dressing with self-healing and anti-oxidation traits.
- The hydrogel demonstrated quick formation, effective sealing for irregular wounds, and improved healing rates in diabetic mice models by delivering mEGF, showcasing its potential for wound healing applications.
Article Abstract
Diabetic wound is considered as a kind of chronic wound prone to infection and difficult to repair due to high glucose level in the blood of patients. In this research, a biodegradable self-healing hydrogel with mussel inspired bioadhesion and anti-oxidation properties is fabricated based on Schiff-base cross-linking. The hydrogel was designed from dopamine coupled pectin hydrazide (Pec-DH) and oxidized carboxymethyl cellulose (DCMC) for mEGF loading as a diabetic wound repair dressing. The Pectin and CMC as natural feedstock endowed the hydrogel with biodegradability to avoid possible side effects, while the coupled catechol structure could enhance the tissue adhesion of the hydrogel for hemostasis. The results showed the Pec-DH/DCMC hydrogel formed fast and can cover irregular wounds with good sealing effect. The catechol structure also improved the reactive oxygen species (ROS) scavenging ability of the hydrogel, which can eliminate the negative effect of ROS during wound healing. The in vivo diabetic wound healing experiment revealed the hydrogel as mEGF loading vehicle greatly enhanced the diabetic wound repairing rate in mice model. As a result, the Pec-DH/DCMC hydrogel could show advantages as EGF carrier in wound healing applications.
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| http://dx.doi.org/10.1016/j.ijbiomac.2023.125644 | DOI Listing |
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