In order to check their glucose levels, diabetics usually have to draw blood. In order to eliminate the need for this invasive way of glucose level control, engineers at Brown University have designed a biological device that can measure glucose concentrations in human saliva. The technique takes advantage of a convergence of nanotechnology and surface ... »

People with diabetes must keep a careful eye on their blood glucose levels, because too much sugar can damage organs, while too little deprives the body of necessary fuel. Most patients must prick their fingers several times a day to draw blood for testing. In one of our previous articles we wrote about hydrogel lenses ... »

Diabetics are encountering the unenviable task of checking their blood sugar levels constantly, usually through a repeated ritual of pin-pricks and blood drawing. But a new non-invasive technology developed by a biochemical engineer at the University of Western Ontario lets diabetics check on their glucose levels with contact lenses that change colors as their blood ... »