The New Scientist reports that researchers at the University of Maryland have developed contact lenses that change their appearance according to the wearer's blood sugar level.
"To make glucose-sensing contacts, scientists added boronic acid to disposable contact lenses. Moisture from the tear ducts contains glucose that binds with the molecules of boronic acid, with the reaction causing fluorescence. A handheld device flashes a blue light into the eye and measures the intensity of the resulting glow, letting the user know their blood glucose level."
Lead author of the study Chris Geddes and his team at the Center for Fluroscence Spectroscopy are also working on lenses that would be able to monitor levels of sodium, potassium, and cholesterol. The full article can be found in this month's Current Opinion in Biotechnology.
Encontra-se em discussao, em fase de especialidade, na Comissao de Educacao, Ciencia e Cultura, a Proposta de Lei 80/X, do Governo, que Aprova a Lei de Bases da Actividade Fisica e do Desporto. Concretizando o seu desejo de um maior dialogo com os cidadaos, a Comissao Parlamentar de Educacao, Ciencia e Cultura, deliberou colocar ate dia 30 de Setembro, esta iniciativa em debate publico, com o objectivo de recolher as propostas dos cidadaos que se interessam pelo Desporto e, deste modo, enriquecer o texto final.
Posted by: accuracy | September 30, 2007 at 11:09 PM
It is never okay to lie, sometimes okay to lie
Posted by: Lee | October 01, 2007 at 11:57 PM