Chinese scientists develop biodegradable cellulose film that blocks 99% oxygen and signals food spoilage
Researchers at the Chinese Academy of Sciences have developed a nanocellulose-based packaging film that combines high oxygen barrier properties with a built-in colour-change freshness indicator, offering a biodegradable alternative to multi-layer petrochemical packaging.

© Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China






Hultgren et al., Nature (2025)
