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American Chemical Society's Weekly PressPac -- March 26, 2008
Date:3/31/2008

ail: vanetten@ag.arizona.edu

ARTICLE #3 FOR IMMEDIATE RELEASE

Chemical signaling may power nanomachines
ACS Nano

In a finding that could provide controlled motion in futuristic nanomachines used for drug delivery, fuel cells, and other applications, researchers in Pennsylvania report that chemical signaling between synthetic microcapsules can trigger and direct movement of these capsules. Their study is scheduled for the currrent isssue of ACS Nano, a monthly journal.

Researchers theorize that synthetic capsules can communicate with each other by physically shuffling chemical signals from capsule to capsule, much like passing water through a firemans bucket brigade. Scientists recently suggested that this same signaling process also appears capable of sending cues to direct cell movement.

In the new study, Anna C. Balazs and colleagues used computer models to simulate the chemical signaling. They modeled a porous polymer microcapsule filled with nanonparticles to imitate a biological cell. When placed next to an empty capsule, nanoparticles from the filled capsule initiated the motion of the empty capsule, which in turn caused the movement of the filled signaling capsule. The same locomotion process could be engineered into futuristic nanomachines to help direct their movement through the body or through fuel cells, the researchers suggest. MTS

ARTICLE #3 FOR IMMEDIATE RELEASE Modeling Microcapsules That Communicate through Nanoparticles To Undergo Self-Propelled Motion

DOWNLOAD FULL TEXT ARTICLE http://dx.doi.org/10.1021/nn700379v

CONTACT:
Anna C. Balazs, Ph.D.
University of Pittsburgh
Pittsburgh, Pennsylvania 15261
Phone: 412-648-9250
Fax: 412-624-9639
Email: balazs1@engr.pitt.edu


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Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society
Source:Eurekalert  

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American Chemical Society's Weekly PressPac -- March 26, 2008
American Chemical Society's Weekly PressPac -- March 26, 2008
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