Importantly, the anti-microbial surface remained even when the host material was washed or otherwise agitated.

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Last week brought one of the more exciting results of that collaboration: an anti-microbial hydrogel that eradicates drug-resistant bacteria.

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The genes in question make anti-microbial proteins and so far, the cells seem to be shielded from some natural fungal predators.

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With an optional anti-microbial keyboard for protecting against harmful bacteria, the notebook trio is ideal for deploying in shared environments such as schools, reception desks, and libraries.

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Two innovative techniques for gathering samples were revealed at the Interscience Conference on Anti-Microbial Agents and Chemotherapy in Toronto, Canada, and reported on the New Scientist website.

BBC: pipette and samples

If the protein really could be turned into a drug with both contraceptive and anti-microbial properties, the idea of which many experts are skeptical, it could have wide appeal.

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The method used to attach the polyethylenimines to materials is also well known the bonding agent benzophenone has already been used to attach the anti-microbial agent to glass, polymer, paper, and metal.

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There, the scientists themselves report that the anti-microbial agent has been known and used for years a cationic polymer, like quaternary polyetheleneimine, which kills bacteria by tinkering with the molecular integrity of cell membranes.

FORBES: New Antibacterial Clothing: Secret Ingredient Revealed