Bacteria clogs medical devices in a very nasty way, Princeton University researchers have determined. As reported in the school's Princeton Journal Watch blog the team determined that microbes build to make ribbons of slime that block other bacteria. The end result: blockage that can affect everything from stents to water filters. Scientists see the finding as crucial information that could help develop new technology to prevent nasty clogging of stents and other devices. Details are published in the Proceedings of the National Academy of Sciences. Blog