High-Tech Band-Aid passes first test: wounds heal 25% faster


A lot of research is being done on smart patches. Scientists have now presented an approach that promises several advances. They have developed a patch that changes its adhesive properties as needed, monitors wounds and actively stimulates healing.

A plaster interwoven with electronics allows wounds to heal much faster

The basic idea of ​​a plaster is simple: by sealing the wound, the surface provides protection while it heals. However, a team of scientists sees great potential for improvement here. As the group led by lead researcher Yuanwen Jiang, professor at Stanford University, im journal Nature writes, a wireless, intelligent bandage has been tested that is supposed to make everything better thanks to integrated sensors and electronics for the targeted stimulation of wound healing. And what’s more, the patch sticks and releases as needed.
Wireless smart bandage for better wound healingPromising smart patches with a lot of high-tech on board (Biorxiv)

“It is an active healing system that could change the standard of care for treating chronic wounds,” said Jiang. The team can show impressive results from the first tests with mice. According to this, the bandage accelerated wound healing by 25 percent in a comparison with a control group. In addition, the skin in the treatment group was able to recede significantly better, and there is talk of a “50 percent improvement in skin regeneration.” The next step is to further develop the “promising reference design” for mass production.
Wireless smart bandage for better wound healingVery good results in first tests

Technically cleverly constructed

The first problem the team tackled: the detachment of existing adhesive bandages can become a problem during wound treatment. For a good transmission of measured values, however, the patches must also lie securely on the skin. The solution: “needs-based adhesion”, or simply put, gluing and detaching at the push of a button. The reaction takes place with a polymer that changes its adhesive properties when heated.

The association’s electronic components are housed in a layer just 100 micrometers thick – at least that’s the ambitious plan for further development. Microcontrollers, a radio antenna, memory, electrical stimulator, biosensors and other components can be found here. For the transmission of the measurement data and electrical stimulation impulses, the scientists rely on a rubbery, skin-like hydrogel that provides an optimal bridge to the skin.

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Research, electronics, high tech, plaster, wound

Research, electronics, high tech, plaster, wound
Biorxiv

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