AUTHOR=Zolfagharian Ali , Bodaghi Mahdi , Le Duigou Antoine TITLE=Editorial: 4D printing and 3D printing in robotics, sensors, and actuators manufacturing JOURNAL=Frontiers in Robotics and AI VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2022.1110571 DOI=10.3389/frobt.2022.1110571 ISSN=2296-9144