Fabrication and Characterization of a Passive Variable Stiffness Joint based on Shear Thickening Fluids. - Philip H. Johnson; Mini Rai; Marcello Calisti (RoboSoft, 2023)

Field-evaluated Closed Structure Soft Gripper Enhances the Shelf Life of Harvested Blackberries. - Philip H. Johnson; Kai Junge; Charles Whitfield; Josie Hughes; Marcello Calisti (ICRA, 2024)

Toward autonomous blackberry harvesting with a soft gripper and vision-controlled robotic arm. - Fabio Taddei Dalla Torre; Omar Faris; Philip H. Johnson; Marcello Calisti (RoboSoft, 2025)