Bioplastics for cardiac surgeons

Thin stretchable biosensors can make the operation safer

Tatiana Matveeva, "Scientific Russia"

A research team from Los Alamos National Laboratory and Purdue University has developed bio-ink for 3D-printing biosensors that allow simultaneous recording and visualization of tissues and organs during surgical procedures, the press service of Los Alamos National Laboratory reports.

The results of the study are published in the journal Nature Communications (Kim et al., Rapid custom prototyping of soft poroelastic biosensor for simultaneous epicardial recording and imaging).

"Simultaneous recording and visualization can be useful during heart surgery to identify critical areas and perform surgical interventions, such as restoring normal heart rhythm," said Chi Hwang Lee, lead author of the work.

Researchers have developed and synthesized biochernils to obtain an ultra-soft, thin and stretchable material for biosensors. They sought to obtain a material that could freely interact with the surface of organs. Biochernils are softer than tissue, stretch without damaging the sensor, and hold well on the wet surface of organs without the help of additional adhesives.

The scientists tested the "bioplast" in vivo on mice and pigs. The results showed that the biosensor is able to reliably measure the electrical signal without disrupting cardiac function.

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