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https://www.sciencedaily.com/releases/2021/06/210616143146.htm
ScienceDaily
Graphene 'camera' captures real-time electrical activity of beating heart
Scientists today track electrical signals and voltage changes in neurons and muscle cells by labeling individual cells or probing with electrodes. Scientists have now developed a new type of sensor that employs a sheet of graphene to get a continuous measureā¦
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