Open Access Review

Biohydrogels (BioHGs): Sources, Physicochemical Properties, Applications, Current Challenges - A Review

Received: 26 April 2026;  Published: 25 August 2026;  doi: 10.21926/rpm.2603007

Abstract

Since 1894, hydrogels (HGs) have advanced from simple water-swollen colloids to poly (2-hydroxyethyl methacrylate) (pHEMA)-based biomedical materials introduced in 1960. Further, the journey continued towards innovative, stimuli-responsive hybrid systems in 2025. Once limited to wound dressings and contact lenses, HGs have now formed a multi [...]