Tetherless µgripper for Tissue Biopsy

Timothy Leong1, Christina Randall2, Bryan Benson1, Aasiyeh Zarafshar1, and David H. Gracias1. (1) Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 125 Maryland Hall, 3400 N Charles Street, Baltimore, MD 21218, (2) Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218

Current microscale grippers are controlled by external pneumatic, hydraulic, and electrical signals. Many also only operate under limited conditions (non-aqueous media, high temperature, ionic solutions). Their tethered nature and operational restrictions limit their versatility and often preclude use in biomedical applications. There is a need for minimally-invasive tools that can perform tasks, such as tissue biopsies without the need for batteries or wiring. In this poster we present a novel gripper that can perform such tasks in an environment that is viable for living organisms.