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Switch Lets Salmonella Fight, Evade Immune System
Researchers at the University of Illinois at Chicago have discovered a molecular regulator that allows salmonella bacteria to switch from actively causing disease to lurking in a chronic but asymptomatic state called a biofilm.
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Analysis of ‚ ß-Lactam Antibiotics, for their identification in food products, using deltaDOT Peregrine – HPCE
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Various penicillin derivatives are widely used to treat infectious diseases in humans and animals, acting to kill or inhibit the growth of the infectious organism. The presence of antibiotics in the food chain is tightly controlled to avoid new strains of antibiotic resistant bacteria developing. EEC regulations now determine maximum limits for each of the 8 penicillin derivatives that can be allowed in animal tissue products for the consumer. A mixture of these 8 antibiotic derivatives was analysed using Micellar Electrokinetic Capillary Chromatography producing high quality reproducible data both in terms of peak mobility (<0.5 % R.S.D.) and peak area (<3.0 % R.S.D.).

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