duits.
The researchers describe development of tiny metallic microgrippers shaped like a hand that work without electricity. The grippers are about 0.03 inches wide when open smaller than the diameter of a grain of sand and made from a gold-coated nickel "palm" joined by six pointy metallic "fingers." The addition of certain chemicals triggers the hands to open or close. In laboratory studies, the scientists demonstrated that the grippers could grasp and release tiny pipes and glass beads and transport these objects to distant locations with the aid of a magnet, showcasing their potential for pick-and-place operations that are ubiquitous in manufacturing, they say.
They also say that this demonstration is also a step toward the development of Micro Chemo Mechanical Systems (MCMS) in contrast to the already well established field of Micro Electro Mechanical Systems (MEMS); the main difference being that the tools are triggered by chemistry as opposed to electricity. MTS
ARTICLE #3 FOR IMMEDIATE RELEASE "Pick-and-Place Using Chemically Actuated Microgrippers"
DOWNLOAD FULL TEXT ARTICLE http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/ja806961p
CONTACT:
David Gracias, Ph.D.
Johns Hopkins University
Baltimore, MD 21218
Phone: (410) 5165284
Fax: (410) 5165510
ARTICLE #4 FOR IMMEDIATE RELEASE
Early immune system exposures linked to chronic disease
Chemical Research in Toxicology
Scientists and regulators have a golden opportunity to reduce the health toll from a range of diseases by focusing more attention on identification of environmental factors that can damage the prenatal immune system as well as that of infants and children, according to an article scheduled for the Jan. 19 issue of ACS' Chemical Research in Toxicology, a monthly journal.'/>"/>
| Contact: Michael Woods m_woods@acs.org 202-872-6293 American Chemical Society Source:Eurekalert |
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