Nano for the wounded

blood celsThe use of nanotechnology in wound healing has been reported before, with the anti-microbial properties of nanoparticles (see here for a big selection of the literature) of silver being incorporated into band-aids by companies such as Nucryst. Another spin-out company Arch therapeutics has just started up coming out of research performed in the US, where researchers have found remarkable properties of a liquid they’ve dubbed ‘Nanohemostat’, that when applied to wounds stops bleeding almost instantly.

The study, reported in Nanomedicine, showed that the Nanohemostat solution stops blood flow in less than 10 seconds at surgical cut sites in the brain, spinal cord, femoral artery, and liver. The solution contains a mixture of small protein fragments, or peptides, which when applied form a nanoscale fibrous scaffold, producing a gel like seal on wounds, instantly stopping bleeding. Exactly how or why this scaffold is formed and why it is so effective is yet to be determined.