Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00228 : Designing self-oscillating cilia using active polymer gels
Author:
Using theory and simulations, we model the dynamic behavior of synthetic
cilia made from soft, active materials. In designing this system, we harness
the properties of polymer gels that undergo photosensitive
Belousov-Zhabotinsky (BZ) reaction. Driven by the periodic reduction and
oxidation of a ruthenium catalyst that is grafted onto the polymer backbone,
these BZ gels undergo rhythmic swelling and de-swelling by chemo-mechanical
transduction. When these BZ gels are tethered to a substrate, they form
cilia that can pulsate autonomously in response to the BZ reaction. To
simulate the behavior of the BZ cilia, we developed a nonlinear 3D model
that captures the effect of the diffusive exchange of BZ reagents between
the gel and the fluid. Using this approach, we determine the factors that
govern the bending and beating of individual cilium. We then turn our
attention to multiple cilia and show that their collective dynamics strongly
depends on the spacing between them. We also establish criteria to regulate
the collective behavior of multiple cilia using light as the external
stimuli. Our findings provide guidelines for designing ciliated surfaces
that can exhibit biomimetic functionality.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.228
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2021 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
1 Research Road, Ridge, NY 11961-2701
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700