Why Medical Devices Should Be Coated with Composites
Everyone used to hate those scratchy, cellophane-like sleeves that went over the length of thermometers at the doctor's office when they took your temperature, right? Those plastic bag-like covers were the best defense -- working even better than rubbing alcohol -- at keeping thermometers germ-free. That is, until they developed smoother, fitted, rubber-like polyethylene (a composite material!) covers. Now, the composite covers keep germs from collecting on the thermometer's surface, leaving fewer germs to be removed in the first place. After all, an "ounce of prevention is worth a pound of cure."