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Composite Cerium Oxide Nanoparticles - Containing Polysaccharide Hydrogel as Effective Agent for Burn Wound Healing

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Abstract:

A high risk of complications in burn injuries is associated with the development of systemic inflammatory response syndrome. Thermal injury (burn) causes the release of cytokines and prostaglandia, resulting in increased interaction between leukocytes, platelets and endothelial cells. Activation of leukocytes leads to an increase in the formation of reactive oxygen species (ROS) and nitrogen, which is normally compensated by the activation of protective antioxidant enzymes. An imbalance between the activity of the radical-producing and antioxidant systems leads to an excess of free radicals and the development of oxidative stress. Oxidative stress limits the repair of damaged tissue and also leads to localized chronic inflammation. Thus, the removal of inflammation and a decrease in the ROS level, which exceeds the physiological level in the burn zone, seems to be expedient for accelerating the healing process of burn injuries of the skin. In this study, we used a polysaccharide hydrogel modified with cerium dioxide (CeO2) nanoparticles, which have unique anti-inflammatory and antioxidant properties, as an effective agent for the treatment of thermal burns. It has been shown that modification of the hydrogel with CeO2 nanoparticles provides accelerated healing of a model burn wound in rats. Already on the 5th day after the treatment of damage to the skin with the modified hydrogel, a decrease in the area of ​​the burn wound that is different from the control is observed. The use of a hydrogel accelerates the healing process of a burn wound on the 25th day by 25.42% (p <0.05) and ensures complete healing of burn wounds on average 5 days earlier in comparison with the control group with Levomekol ointment. Treatment of burn wounds using a hydrogel leads to the formation of a small post-burn scar. Thus, a polysaccharide hydrogel modified with CeO2 nanoparticles can be considered as an effective wound healing agent in the treatment of thermal burns and skin lesions of various etiologies.

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Periodical:

Key Engineering Materials (Volume 899)

Pages:

493-505

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.899.493

Citation:

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Online since:

September 2021

Authors:

Anton L. Popov*, Nikolai V. Khohlov, Nelli R. Popova, Victoria V. Andreeva, Kristina A. Kamenskikh, Artem M. Ermakov, Vladimir K. Ivanov

Keywords:

Cerium Oxide Nanoparticles, Composite Hydrogel, Polysaccharide, Regeneration, Wound Healing

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* - Corresponding Author

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