First artificial scaffolds for studying plant cell growth

As a baby seedling emerges from the depths of the soil, it faces a challenge: gravity's downward push. To succeed, the plant must sense the force, then push upward with an even greater force. Visible growth is proof that ...

How to power electronics using mechanical motion

The push toward low powered, energy-saving devices has been a direction the electronics industry has always pursued. The switch to low powered LED lighting is a good example of this trend. Another avenue is the development ...

Physicists make square droplets and liquid lattices

When two substances are brought together, they will eventually settle into a steady state called thermodynamic equilibrium; examples include oil floating on top of water and milk mixing uniformly into coffee. Researchers ...

Switched on IR-active organic pigments

In photosynthesis and organic photovoltaics, pigment molecules convert light into electrical charge. A team of chemists have now produced an unusual organic pigment, which is "switched on" by an electrical charge to become ...

Ultracold transistors serve as their own memory devices

Digital transistors—assembled by the billions in today's computer chips—act as near-perfect electronic switches. In the "on" position, achieved when an above-threshold voltage is applied to the device, the transistor ...

A 'twist' brings new possibilities for ultra-thin 2D materials

A new study from The Australian National University (ANU) shows how the ability of 2D materials to convert sunlight into electricity can be controlled by simply "twisting" the angle between two ultra-thin layers correctly.

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