Category: 3D Printing

Engineers Hack Cell Biology to Create 3-D Shapes from Living Tissue

In the journey from egg to embryo to mature organism, our bodies stretch and wrinkle and fold like a fabulously intricate piece of origami. Now UC San Francisco bioengineers have shown that many of the complex folded shapes that form mammalian body plans and internal tissue structures can be re-created with very simple instructions, setting the stage for future applications ranging from lab-grown organs to soft biological robots.

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Besting the owl’s aerodynamics

Feather-inspired design cuts wind turbine noise. A team of researchers studying the acoustics of owl flight is working to pinpoint the mechanisms that accomplish this virtual silence to improve man-made aerodynamic and aeroacoustic design—of wind turbines, aircraft, underwater vehicles, and automobiles.

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3D imaging of surface chemistry in confinement

EPFL researchers have developed an optical imaging tool to visualize surface chemistry in real time. They imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary. The glass is covered with hydroxyl (-OH) groups that can lose a proton – a much-studied chemical reaction that is important in geology, chemistry and technology. A 100-micron long capillary displayed a remarkable spread in surface OH bond dissociation constant of a factor of a billion. The research has been published in Science.

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