ARTICLE # 3 FOR IMMEDIATE RELEASE
Contamination and Effects of Perfluorochemicals in Baikal Seal (Pusa sibirica). 1. Residue Level, Tissue Distribution, and Temporal Trend
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Hisato Iwata, Ph.D.
Center for Marine Environmental Studies
ARTICLE #4 FOR IMMEDIATE RELEASE
A chemical keypad lock for biomolecular computers
Journal of the American Chemical Society
Researchers in New York are reporting an advance toward a new generation of ultra-powerful computers built from DNA and enzymes, rather than transistors, silicon chips, and plastic. Their report on development of a key component for these biomolecular computers is scheduled for the March 26 issue of ACS Journal of the American Chemical Society, a weekly publication.
In the new study, Evgeny Katz and colleagues describe development of a chemical keypad lock, one of the first chemical-based security systems of its kind. The researchers note that years of effort have gone into developing biomolecular computers, which rely on chemical reactions rather than silicon chips to perform logic functions. Among their uses would be encryption of financial, military, and other confidential information. Only individuals with access to a secret key a chemical key could unlock the file and access the data.
The research by Katz and colleagues solved one part of this technological challenge: The security code. They identified a series of naturally occurring chemical reactions that act as a keypad lock. In laboratory studies, they demonstrated that by addi
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American Chemical Society