Implants containing both Glucose Oxidase and catalase, before and after implantation in a rat
The miniaturization of electrical sensors coupled with the development of flexible silicon technology paves the way for a wide variety of medical sensors that can be implanted into the human body. One of the major obstacles facing the development of such devices, not to mention artificial organs, is how they are powered. Currently devices need to be constantly recharged via an external power source or, as is the case with battery-powered pacemakers, replaced altogether. Now a team of French researchers has implanted a new type of biofuel cell into rats that overcomes these problems by generating electricity from a potentially limitless source - sugar in the rat’s bodies.