Title :
Fabrication of folding microstructures actuated by polypyrrole/gold bilayer
Author :
Yingkai Liu ; Lance Oh ; Fanning, S. ; Shapiro, B. ; Smela, E.
Author_Institution :
Dept. of Mech. Eng., Maryland Univ., College Park, MD, USA
Abstract :
We have developed a method to fabricate substrates that can fold themselves. The microstructures are actuated by an electroactive polymer, polypyrrole (PPy). A series of bilayers is defined on one surface of the substrate, and hinges are formed by etching the substrate from the back side to undercut the bilayers. A shape-morphing object is demonstrated that comprises multiple hinges. This object was able to bend both forward and backward. We are applying this technology to fabricate medical devices that operate in bio-fluids.
Keywords :
biomedical materials; crystal microstructure; etching; fasteners; gold; micromechanical devices; polymers; substrates; Au; biofluids; electroactive polymer; etching; folding microstructures; medical devices; multiple hinges; polypyrrole-gold bilayer; Assembly; Back; Chemical technology; Etching; Fabrication; Fasteners; Gold; Microactuators; Polymers; Substrates;
Conference_Titel :
TRANSDUCERS, Solid-State Sensors, Actuators and Microsystems, 12th International Conference on, 2003
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7731-1
DOI :
10.1109/SENSOR.2003.1215591
