Covalently Functionalized Click Alginate Cryogels Enable Non-Invasive Near-Infrared Sensing of Gastric pH
Katia Cherifi, Arturo Israel Machuca‐Parra, Lili Ding, Nahyun Kwon, Loic Bart, Mouna Ayad, Christopher F. Rose, Gang Zheng, Simon Matoori
This paper develops a non-invasive gastric pH sensor using covalently functionalized click alginate cryogels that remain stable in acidic and protease-rich environments and accurately detect pH changes in vivo.
bioRxiv · Sep 18, 2026 · PreprintBioengineering