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American Chemical Society's Weekly PressPac -- May 28, 2008
Date:6/2/2008

fornia are reporting. The dyes from Mother Natures palate also have an anti-bacterial effect that could discourage harmful bacteria from growing on socks, undergarments, and other clothing, they report in a study scheduled for the June 6 issue of ACS Biotechnology Progress, a bi-monthly journal.

In the new research, graduate student Farzaneh Alihosseini, her adviser Gang Sun and colleagues point out that conventional dyes and pigments used in clothing have several drawbacks. Many are made from non-renewable resources such as petroleum, and are potentially harmful to the environment and human health. In addition, concerns exist about the potential toxicity of existing antibacterial-fabric coatings.

The researchers found that a certain strain of bacteria isolated from marine sediments produces large quantities of bright red pigments called prodiginines that can be used to dye clothing. In laboratory tests, the pigments worked on wool, silk, nylon, and acrylic fabrics as efficiently and effectively as some conventional dyes. The pigments showed strong antibacterial activity against harmful bacteria, including E. coli and Staphylococcus aureus, when applied to most of the fabrics tested. MTS

ARTICLE #3 FOR IMMEDIATE RELEASE
Antibacterial Colorants: Characterization of Prodiginines and Their Applications on Textile Materials

DOWNLOAD FULL TEXT ARTICLE
http://dx.doi.org/10.1021/bp070481r

CONTACT:
Gang Sun, Ph.D.
University of California
Davis, California 95616
Phone: 530-752-0840
Fax: 530-752-7584
Email: gysun@ucdavis.edu


ARTICLE #4 FOR IMMEDIATE RELEASE

Nano-tech process produces plastics that are 10 times more stretchable
Macromolecules

Move over, Rumplestiltskin. Researchers in China report the first successful electrospinning of a
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Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society
Source:Eurekalert  

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