Hydrogels are swellable polymeric materials and due to properties like three dimensional network, swelling characterisitics, biocompatibility and similarity to natural tissues are of primary interest of the researchers. Glucose sensitive hydrogels include pH sensitivity based, lectin based and viscosity based phenylboronic acid containing approaches. The main concept is to achieve glucose sensitivity which can be achieved by modification of the polymers. This article overview the basic concepts which can be included for tighter control over the glucose level just similar to that of the endogenous released insulin which can be helpful to avoid diabetic complications and to provide better patient compliance.
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