Continuous glucose monitoring plays an important role in severe diabetic patients. However, there is no available commercial implanted glucose biosensor for long-term clinic application. This paper firstly introduces the classification of biosensors for continuous glucose monitoring, and then discusses the failure mechanism for implanted biosensors. After that, it points out the routes and tips to improve the life time of the biosensor, and finally looks forward to the future development of implanted glucose biosensors.
