Flesh Velcro fixes hearts.

Irish Examiner looks into the “biological Velcro” that could soon help repair damaged hearts:

Velcro uses two sheets of material, one covered by hooks and the other loops, that bind when brought together.

In a similar way, the scientists used a biodegradable polymer implant containing interlocking T-shaped hooks to assemble different layers of heart cells into a 3D structure.

The system allows individual layers to be given different kinds of treatment to maximise their survival. It also means assembled tissue can easily be dismantled, without causing damage.

The team, led by Professor Milica Radisic, from the University of Toronto in Canada, wrote in the journal Science Advances: “We envisioned designing living tissues that could be as easily and firmly assembled as two pieces of Velcro.