The Team's Heart Prototype and Associated Computer Model (image) Wyss Institute for Biologically Inspired Engineering at Harvard Share Print E-Mail Caption To achieve the heart's 3D motion, the team embedded their soft modified pneumatic artificial muscles -- made of silicone elastomer in a braided mesh -- in a matrix also made of soft silicone elastomer. The top images show the team's heart prototype as it is subjected to various pressures. The middle images show a computer model of the mesh only as it deforms at corresponding pressures, and below is a computer model showing how the pneumatic artificial muscles and mesh change their motion in response to the different pressure regimes. The U indicates displacement. Credit Harvard Wyss Institute and Harvard School of Engineering and Applied Sciences Usage Restrictions Please, credit Harvard Wyss Institute and Harvard School of Engineering and Applied Sciences Share Print E-Mail 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.