胰岛素
内科学
自愈水凝胶
内分泌学
果糖
糖尿病
体内
材料科学
化学
生物化学
生物
医学
生物技术
高分子化学
作者
Ren-Qi Wang,Yuhui Tian,Jiankang Wang,Wenhui Song,Cong Ye,Xue-Bing Wei,Yingwu Mei,Hideyuki Miyatake,Yoshihiro Ito,Yong Mei Chen
标识
DOI:10.1002/adfm.202104488
摘要
Abstract Initiated by the specific binding between D‐glucose and biological receptors, the human body has a delicate metabolic system to regulate blood D‐glucose levels, but failing to release insulin would induce hyperglycemia or type I diabetes. While insulin delivery is an effective form of hyperglycemia therapy, the self‐regulated triggering of insulin release for on‐demand supplementation remains inadequate. Here, a biomimetic glucose trigger‐insulin release system, that is, a bidentate β‐cyclodextrin‐based hydrogel with preloaded insulin is presented; the dual self‐regulated system shows a specific D‐glucose response to realize accurate monitoring and simultaneous on‐demand trigger insulin release. The specific binding between D‐glucose and the bidentate β‐cyclodextrin induces the release of protons, causing macroscopic swelling of the hydrogel, subsequently triggering the on‐demand and long‐term supplementation of insulin. On the contrary, isomers of D‐glucose, such as D‐fructose and D‐galactose, cause shrinking of the hydrogel, and retard insulin release. In‐vivo studies in type I diabetic mice model ascertain that although the bidentate β‐CD hydrogel is preloaded with short‐activity insulin, it exerts long‐activity control of blood glucose level over 12 h.
科研通智能强力驱动
Strongly Powered by AbleSci AI