3D-printed micro-organs could replace animal lab tests

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As 3D printing materials improve, microphysiological systems (MPS) are becoming increasingly useful for scientists. A team from Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) recently 3D printed a new material with integrated micro sensors. Dubbed an organ-on-a-chip, the microscopic cardiac tissue mimics the activity of the human heart.

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