Researchers from the Department of Neuroscience at the Johns Hopkins University School of Medicine injected mice with a chemical that incorporates itself into newly dividing cells.

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Frighteningly lethal and insidiously efficient, these bacteria replicate and mutate prodigiously, turning out variants that elude most of the chemical weapons--antibiotics--that medicine has invented over the past century.

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Langer was trained as a chemical engineer, and his celebrated work has come at a time when huge strides in medicine--like the bumped-up potency of drugs--have coincided with advances in materials.

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Emergency medicine physicians typically receive extensive training in management of patients exposed to WMD, as well as other chemical, biologic, or radiation-induced disasters.

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