Flexible Circuit Can Wrap Around a Vein

Mike Paczesny | The Rundown Live

A team at The University of Texas at Dallas has developed a thin film with transistors that are flexible enough to wrap around a nerve or blood vessel.

In testing, implanted rats maintained conductivity while flexing with the surrounding tissue, they could wrap around a diameter as small as 2.25 millimeters.

This is the introduction of a new paradigm of in-body sensors to monitor health conditions like blood pressure heart rate, progression of diseases, or more.

Graduate student Jonathan Reeder, the primary author on the research paper describing the findings:

Scientists and physicians have been trying to put electronics in the body for a while now, but one of the problems is that the stiffness of common electronics is not compatible with biological tissue,”

You need the device to be stiff at room temperature so the surgeon can implant the device, but soft and flexible enough to wrap around 3-D objects so the body can behave exactly as it would without the device. By putting electronics on shape-changing and softening polymers, we can do just that.”