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Source: http://www.sciencedaily.com/releases/2007/08/070820161748.ht m

28. August 19, Pacific Northwest National Laboratory Nano−based biosensor may get help first to those who need it most. Scientists at Pacific Northwest National Laboratory have discovered a way to increase the sensitivity of test strips that will enable creation of a portable biosensor that can address a major concern associated with incidents involving chemical or nerve agents −− the need to quickly distinguish between individuals who have been exposed and the "worried well." The sensor components resemble a pregnancy test strip and a small glucose testing meter. The researchers are working with an "electrochemical immunoassay approach." This involves using the antibody of a specific disease −− a protein produced in response to an invading bacterium or other foreign substance −− to attract the biomarker. Researchers found that labeling a second antibody with a nanoparticle amplifies the biomarker's signal. Greater amplification means more precise readings. "The electrochemical signal is amplified several hundreds to thousand times because of the metal ions," researchers said. "This level of sensitivity will allow detectors to be very precise in identifying the concentration of biomarkers in biological samples." Source: http://www.pnl.gov/news/release.asp?id=265

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Government Sector

29. August 21, Courant (CT) Suspicious powder discovered outside courthouse. A preliminary test of a white, powder−like substance discovered outside the criminal courthouse Monday morning, August 20, in Danielson, CT. showed that it was not a biohazardous material, police said. The substance, which delayed the opening of the Superior Court building until 10:25 a.m. EDT Monday, was shipped to a lab for thorough analysis, said Lt. J. Paul Vance of the state police. A judge ordered that the courthouse remain closed after the substance was spotted. Two ball−shaped, duct−taped packages of the white substance appeared to have been hurled against the courthouse wall, he said. Troopers with biohazard training removed the packages, Vance said. Source: http://www.courant.com/news/custom/topnews/hcu−dancourtpowde r−0820,0,5651402.story?coll=hc_sports_highschool_util

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Emergency Services Sector

30. August 21, Electronic Business Emerging technology: Software−defined radio technology for emergency communications. Mobile gear isn't keeping pace with galloping wireless technology. One potential answer is software−defined radio technology (SDR). With SDR, software replaces the controlling hardware and new standards or frequencies are added through software upgrades. Multiband mobile phones exist today, but they use hardware to process different signals. SDR uses an analog−to−digital converter to change signals into a digital format so the handset software can process it. Using SDR technology, the same mobile phone could work across any geographic area worldwide, with any standard or frequency. In its


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