Sticking an implantable sensor to the surface of a beating heart usually requires suturing around the periphery of the sensor or copious amounts of adhesive layered between the sensor and the heart. In both cases, such a sensor rarely has tight, uninterrupted contact with heart tissue, limiting the data that clinicians can collect on a patient's heart function.
To solve this challenge, researchers at the University of Chicago's Pritzker School of Molecular Engineering have designed a new adhesive semiconductor that can stick tightly to the moist, pliable surfaces of living tissues, including the, allows tissue-adhesive properties for transistor-based biosensors.
But Wang thought more work was needed to revolutionize the biosensors that carry out the first step in this workflow: collecting information fromPreviously developed biosensors, he said, were not very good at adhering tightly to living organs. This meant the data they provided was inconsistent or spotty.
"Everyone knows from their own life experience that if you try to stick a piece of tape onto a dry surface, it can adhere strongly," said Wang."But try to stick the same tape onto a wet surface and it becomes much harder." "The devices could be attached to any location on the surface of the heart with less than a minute of very gentle pressure," said Wang.
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