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On this episode of the Pulse, we’re moving fluids across active surfaces, visualizing a beating heart in 3D, preventing drowsy drivers, and getting a better night’s rest.

Active Surfaces: Researchers have developed a new way of making surfaces that can actively control how fluids or particles move across them. The work might enable new kinds of biomedical or microfluidic devices.

3D Beating Heart: Researchers have captured detailed three-dimensional images of a beating heart in zebrafish. They combined high-speed Selective Plane Illumination Microscopy and clever image processing.

Drowsy and Driving: The Biomechanics Institute has developed a system that integrates smart textiles into the driver’s seat of a car to measure heartbeat and respiratory rate. The project, named HARKEN, is attempting to prevent driver fatigue and sleepiness while in transit.

Sensing Sleep Smarter: Sense is a sleep monitoring technology that provides a comprehensive analysis of the user’s nighttime experience. The system is made up of three key pieces – a sensitive sleep tracking sensor, a device that monitors the person’s sleep environment, and a mobile app

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