Drs. Nishida, Arnold, Sheplak and Cattafesta lead research focused on the development of mesoscale and microscale systems that can convert energy from the ambient environment into useful electrical power for sensors, portable electronics, etc. Example environmental energy sources include vibrational, acoustic, and thermal sources, which are converted by electromechanical and/or thermoelectric means. Emphasis is on developing self-powered systems, including the energy harvesting device and associated power conversion/management electronics.