Portable Nanocomposite System for Wound Healing in Space

Area of Science:

• Biomaterials Science
• Space Medicine
• Drug Delivery Systems

Background:

• Skin injuries are a significant risk during human spaceflight.
• Impaired wound healing in space necessitates advanced medical countermeasures.
• Current medical capabilities for space missions are limited.

Purpose of the Study:

• To develop a biocompatible hybrid system for enhanced skin wound healing in space.
• To create a sustained drug delivery mechanism for a natural pharmaceutical ingredient.
• To investigate the potential of a novel hydrogel for space applications.

Main Methods:

• A hybrid system was synthesized using poly 2-hydroxyethyl methacrylate (pHEMA) hydrogel.
• Halloysite nanotubes (HNTs) were loaded with thymol (Thy) for sustained drug release.
• Cryo-polymerization was employed to create the drug-loaded hydrogel sponge.

Main Results:

• The synthesized hydrogel exhibited super absorbent properties and good swelling ability.
• The material demonstrated a high drug-loading capacity, holding up to 5.5 mg of Thy per 90 mg of dried sponge.
• Controlled release tests showed 62% of loaded Thy was delivered over one week.

Conclusions:

• The developed pHEMA-based hydrogel system shows promise for effective skin repair in space.
• This miniaturized device offers a versatile solution for managing skin wounds during extended space missions.
• The sustained thymol release capability supports the potential for improved wound healing outcomes in microgravity environments.