The device also improves on previous "wearable" monitors with higher memory performance, courtesy of gold nanoparticles.

An ultra-thin electronic device attaches to the skin like a temporary tattoo and measures heart rate and other vital signs without the bulky electrodes used in current hospital monitoring, reports a new study in the 11 August issue of the journal Science.

The device could also potentially be used as an electronic bandage to speed up healing in wounds, burns, and other skin conditions, and it could even provide touch sense to prosthetic devices such as artificial legs or arms.

A number of exciting, family-friendly activities are planned for Washington, D.C. and across the nation when the first-ever USA Science & Engineering Festival opens next month. As a founding partner helping to make the event possible, AAAS has provided planning and promotional assistance and will host two festival activities.

The main festival activities will take place on the National Mall and surrounding areas from 11-24 October, with free events ranging from exhibits to lectures to stage shows.