Remember Generra Hypercolor tshirts that would change color in response to heat? Tufts University engineers have created a similar fabric integrated with a variety of chemical sensors. For example, your clothing could monitor your health or detect environmental contaminants. The key, says, biomedical engineer Fiorenzo Omenetto, is their special ink is based on silk, material that can "act like a protective 'cocoon' for biological materials" so the various sensing and color-changing compounds can be mixed in and still function. — Read the rest