An artificial heart fiber (left) beating at different frequencies, while a circle-shaped cantilever (right) measures the force of the contractions. VENIAMIN SIDOROV, VIIBRE VANDERBILT

(See V.Y. Sidorov et al., "I-Wire Heart-on-a-Chip I: Three-dimensional cardiac tissue constructs for physiology and pharmacology," Acta Biomater, doi: 10.1016/j.actbio.2016.11.009, 2017.)



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