AI Summary
Summary: Engineers have created a highly sensitive lead detector using graphene, capable of detecting ultra-low concentrations of lead ions in water. This technology surpasses previous techniques by achieving a limit of detection one million times more sensitive, potentially improving water quality monitoring.
Engineers have developed an ultra-sensitive sensor made with graphene that can detect extraordinarily low concentrations of lead ions in water. The device achieves a record limit of detection of lead down to the femtomolar range, which is one million times more sensitive than previous technologies.