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Tetherless thermobiochemically actuated microgrippers

Author:
Leong, Timothy G., Randall, Christina L., Benson, Bryan R., Bassik, Noy, Stern, George M., Gracias, David H.
Source:
Proceedings of the National Academy of Sciences of the United States of America 2009 v.106 no.3 pp. 703-708
ISSN:
0027-8424
Subject:
actuators, biopsy, medical equipment, temperature
Abstract:
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).
Agid:
2362964