English scientists started developing a project to achieve a revolutionary diabetes medication which may substitute insulin injections. 
According to the BBC, the team have used some very clever chemistry to create a gel that only dissolves in the presence of glucose. The idea is to load up the gel with insulin, then as the glucose levels rise in someone with diabetes, the gel dissolves and the insulin is released into their system. 
Once the project is complete, it would be an alternative to the current methods where a diabetic has to carry out blood tests, work out the right dose of insulin and then inject it. With the gel, the chemistry does all this automatically.

Source: QNA