Tetherless thermobiochemically actuated microgrippers.
We demonstrate mass-producible, tetherless microgrippers that can be remotely triggered by temperature and chemicals under biologically relevant conditions. The microgrippers use a self-contained actuation response, obviating the need for external tethers in operation. The grippers can be actuated en masse, even while spatially separated. We used the microgrippers to perform diverse functions, such as picking up a bead on a substrate and the removal of cells from tissue embedded at the end of a capillary (an in vitro biopsy).
Leong
Timothy G
TG
Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
Randall
Christina L
CL
Benson
Bryan R
BR
Bassik
Noy
N
Stern
George M
GM
Gracias
David H
DH
D000818:Animals; D001706:Biopsy / Q000379:methods; D002417:Cattle; D002470:Cell Survival; D002478:Cells, Cultured; D004548:Elasticity; D051379:Mice; D011108:Polymers / Q000737:chemistry; D012371:Robotics; D013696:Temperature; D001743:Urinary Bladder / Q000473:pathology
D011108:Polymers