Researchers at Pemm State (University Park, PA, USA; www.psu.edu.) have developed a novel microneedle patch that is capable of immediately stopping bleeding after injury.

The hemostatic microneedle technology can be applied like a typical adhesive bandage to quickly stop bleeding.

The biocompatible and biodegradable microneedle arrays (MNAs ) on the patch increase its surface contact with blood and accelerate the clotting process.

The needles also increase the adhesive properties of the patch through mechanical interlocking to promote wound closure.