Over the past few years we've covered a number of electronic patches designed to be biocompatible with the human body to allow for long-term monitoring of various health parameters. We've also seen scaffolds that can host cardiac cells to be used as material to repair heart tissue injured from events such as heart attacks.
At Harvard University a team of researchers has now created a hybrid of these two technologies, resulting in an electronic scaffold within which heart cells can make home. The electronic grid within the device allows for measuring of electric current passing through, and the researchers were able to build 3D electric maps of living animal hearts. Moreover, the same grid can be used to stimulate the heart in complex ways, in its current iteration providing 64 individually controlled electrode points where current can be delivered.
Simultaneous stimulation and monitoring using dense grids seeded with patients' own heart cells may one day allow cardiologists to offer therapy that will make existing pacemakers and other cardiac implants seem genuinely ancient.
Study in Nature Nanotechnology: Three-dimensional mapping and regulation of action potential propagation in nanoelectronics-innervated tissues…
Via: Harvard…
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