This surgical glue can seal wounds in 60 seconds without needing staples or stitches

Researchers have developed a highly elastic surgical glue that, they say, can seal wounds within a minute.

The potentially life-saving surgical adhesive, called MeTro (short for methacryloyl-substituted tropoelastin), was created by an international team of scientists and could eliminate the use of more common methods such as stitches or staples.

Biomedical engineers from the University of Sydney and the United States collaborated on the project.

MeTro was made using a natural elastic protein and can be used to seal wounds in tissues that are at the risk of re-opening, for example in organs such as the lungs, arteries and heart, which continually expand and contract.

MeTro is made from a natural elastic protein (University of Sydney)

The gel-like material also works on internal wounds in areas that are hard to reach and has been successfully tested on the lungs of rodents and pigs.

When treated with UV light, MeTro takes only 60 seconds to set.

It also comes with a built-in “degrading” enzyme, which can be tweaked to coincide with the wound-healing process – which could last anything from just a few hours to several months.

Study author Professor Anthony Weiss, from the University of Sydney, described the process as resembling that of silicone sealants used around kitchen tiles.

“When you watch MeTro, you can see it act like a liquid, filling the gaps and conforming to the shape of the wound,” he said.

“It responds well biologically, and interfaces closely with human tissue to promote healing.

“The gel is easily stored and can be squirted directly onto a wound or cavity.”

He believes the technology could be used in treating serious internal wounds in emergency situations such as car accidents or war zones.

Scientists say MeTro promotes healing by interacting with the wounded tissue (University of Sydney)

Weiss says the next stage for the technology is clinical testing.

“We have shown MeTro works in a range of different settings and solves problems other available sealants can’t,” he said.

“We’re now ready to transfer our research into testing on people. I hope MeTro will soon be used in the clinic, saving human lives.”

The results have been published in Science Translational Medicine.

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