Dissolvable Sensors Inside the Body
April 10, 2018 | Terry Sharrer
William Henry Bragg (the father) and William Lawrence Bragg (the son) uniquely shared the 1915 Nobel Prize in Physics for mathematically determining the refraction-reflectance ratio of a light beam in a transmission medium (as in this story using an optical fiber, a fiber Bragg gradient). In effect, laser etching puts a Fresnel lens in the fiber, and because light is temperature sensitive, such a fiber can be used as a temperature sensor in the vicinity of, say, a tumor. Here, the fiber sensor is made of dissolvable material so it can remain in the body for an extended time. MORE
Image Credit: en.wikipedia.org