A common soil mineral - birnessite - solves a nearly insolvable problem: degrading prions.
Why this matters: Prions are a misfolded form of a protein that have been implicated in many neurologically wasting diseases, the best known being Mad Cow Disease. One of the things that makes prions so tricky is that they are very, very hard to destroy. If this research pans out, and can be applied to prevent the spreading of prions, it's great news.
Are we close to being able to destroy or inactivate prions in a hospital/medical setting? Jackson et al 2005 Journal of Virology reported success using ionic proteolytic enzymatic detergent prior to sterilization with little instrument degradation. We need a simple, inexpensive techniqe that can be applied to a wide variety of instruments so that it can be done as a standard procedure, rather than just on known CJD patients. Currently the suggestions are to throw out all equipment used on these patients.
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