Effects of gamma sterilisation on dissipation mechanisms in polyethylene glycol hydrogels - Novel insights revealed by nanoindentation and modelling

Key Points

• Dissipation mechanisms changed significantly after gamma sterilisation in polyethylene glycol hydrogels, affecting their performance.
• Key evidence shows alterations in properties measured by nanoindentation, indicating up to 40% change in stiffness.
• Analysis using nanoindentation and modelling demonstrates the impact of gamma sterilisation on hydrogel materials.
• These findings suggest that further evaluation is needed to determine long-term effects on hydrogel applications in medical fields.