Electronic-Free Particle Robots Communicate through Architected Tentacles. - Xinyi Yang; Bohan Wang; Víctor Riera Naranjo; Minghao Guo; Olivia Rivera; Leonid Sopizhenko; Shucong Li; William T. Freeman; Wojciech Matusik; Bolei Deng (Adv. Intell. Syst., 2025)