CORRIGENDUM: Bilayer oxidized sodium alginate–carboxymethyl chitosan hydrogel microspheres enable sustained BMP-2 release for enhanced bone regeneration (2025 Biomed. Mater.  20 065009)

Key Points

• To correct previous findings regarding the effectiveness of bilayer hydrogel microspheres in BMP-2 release and bone regeneration.
• Correction of prior published results
• Analysis of bilayer oxidized sodium alginate and carboxymethyl chitosan hydrogels
• Evaluation of BMP-2 delivery in hydrogel systems
• Sustained BMP-2 release confirmed from bilayer microspheres
• Enhanced bone regeneration properties reported
• Increased bioactivity linked to more effective BMP-2 delivery