Wood floor nanogenerator graphical abstract (IMAGE) Cell Press Caption This graphical abstract shows how footsteps on functionalized wood floors can be used to power small devices. Credit Sun et al./Matter Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.