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Bacteria have many methods of adapting to resist antibiotics, but a new class of spiral polypeptides developed at the University of Illinois targets one thing no bacterium can live without: an outer membrane. The polypeptides, which are short protein chains, act as bacterial hole-punchers, perforating the bacterial membrane until the cell falls apart. The antimicrobial agents are dressed for their mission in a positively charged shell that lets them travel in body fluids, protected from interacting with other proteins, and also attracts them to bacterial membranes. Led by U. of I. materials science and engineering professor Jianjun Cheng, the researchers published their findings in the Proceedings of the National Academy of Sciences.

An analysis of one hundred coffees sold in Spain has confirmed the presence of mycotoxins -toxic metabolites produced by fungi. In addition, five of the samples that were tested were found to contain ochratoxin A, the only legislated mycotoxin, in amounts that exceeded maximum permitted levels. While the authors point out that these results are not alarming, they do recommend assessing the risk that exposure to mycotoxins from coffee poses to the general public. They also suggest reviewing production processes in order to reduce the levels of these natural contaminants in coffee.

MedStar Washington Hospital Center’s Ebola Response Team has been honored with the 2015 Patient Safety Award from the District of Columbia Hospital Association (DCHA). The award recognizes the team’s outstanding efforts in its Ebola-related plans and training to care for potential or confirmed patients with the Ebola virus.