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Rapid manufacture of monolithic micro-actuated forceps inspired by echinoderm pedicellariae
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Leigh, Simon J., Bowen, J., Purssell, C. P., Covington, James A., Billson, Duncan R. and Hutchins, David A. (2012) Rapid manufacture of monolithic micro-actuated forceps inspired by echinoderm pedicellariae. Bioinspiration & Biomimetics, Vol.7 (No.4). Article: 044001. doi:10.1088/1748-3182/7/4/044001
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Official URL: http://dx.doi.org/10.1088/1748-3182/7/4/044001
Abstract
The concept of biomimetics and bioinspiration has been used to enhance the function of materials and devices in fields ranging from healthcare to renewable energy. By developing advanced design and manufacturing processes, researchers are rapidly accelerating their ability to mimic natural systems. In this paper we show how micro-actuated forceps inspired by echinoderm pedicellarie have been produced using the rapid manufacturing technology of micro-stereolithography. The manufactured monolithic devices are composed of sets of jaws on the surface of thin polymer resin membranes, which serve as musculature for the jaws. The membranes are suspended above a pneumatic chamber with the jaws opened and closed through pneumatic pressure changes exerted by a simple syringe. The forceps can be used for tasks such as grasping of microparticles. Furthermore, when an object is placed in the centre of the membrane, the membrane flexes and the jaws of the device close and grasp the object in a responsive manner. When uncured liquid photopolymer is used to actuate the devices hydraulically instead of pneumatically, the devices exhibit self-healing behaviour, sealing the damaged regions and maintaining hydraulic integrity. The manufactured devices present exciting possibilities in fields such as micromanipulation and micro-robotics for healthcare.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Journal or Publication Title: | Bioinspiration & Biomimetics | ||||
| Publisher: | Institute of Physics Publishing Ltd. | ||||
| ISSN: | 1748-3182 | ||||
| Official Date: | December 2012 | ||||
| Dates: |
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| Volume: | Vol.7 | ||||
| Number: | No.4 | ||||
| Page Range: | Article: 044001 | ||||
| DOI: | 10.1088/1748-3182/7/4/044001 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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