| Autor: |
Stevenson, Mathew, Waldman, Stephen D., Yongjun Lai |
| Předmět: |
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| Zdroj: |
Journal of Intelligent Material Systems & Structures; Jan2010, Vol. 21 Issue 2, p213-220, 8p, 1 Chart, 3 Graphs |
| Abstrakt: |
This article proposes a novel electro-mechanical device to facilitate the investigation of mechanical stimuli on cells. The system was designed to dynamically apply a generalized, multi-axial state of deformation to a cell-encapsulated in a hydrogel cube by applying independent combinations of normal and shear forces to the faces of the cube. The compact device was prototyped using ABS plastic and used shape memory alloy actuator wires to generate the required forces and deformations. The electro-thermal and thermo-mechanical behaviors of the actuation system were modeled analytically and the stimulator was tested to evaluate its performance. Strain amplitudes of up to 8% (tension/compression and shear) were achievable, while deforming a cube with 1 cm side length. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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