What makes plants electrically excitable

Plant cells use electrical signals to process and transmit information. In 1987, as a postdoc of Erwin Neher in Göttingen, biophysicist Rainer Hedrich discovered an ion channel in the central vacuole of the plant cell, which ...

Reconfigurable metasurfaces provide nanoscale light control

Researchers have designed electromechanically reconfigurable ultrathin optical elements that can be controlled and programmed on a pixel-by-pixel level. These versatile metasurfaces could offer a new chip-based way to achieve ...

Researchers discover non-canonical ion channel activation pathway

The passage of ions through the cell membrane is controlled by ion channels, which are protein complexes that regulate vital processes, such as the heartbeat, and are a target of drug development. Now, a study at the University ...

Ultra-high-contrast digital sensing

Virtually any modern information-capture device—such as a camera, audio recorder, or telephone—has an analog-to-digital converter in it, a circuit that converts the fluctuating voltages of analog signals into strings ...

How plants sense electric fields

An international group of researchers has pinpointed the sensor plants use to sense electric fields. A beneficial side effect: Their work could contribute to the understanding of how the Ebola virus enters human cells.

Electronic micro labs control chemical processes from the inside

Chemists at the Ruhr-Universität Bochum, together with their project partners, have developed tiny electronic components that can control chemical processes from the inside. These micro labs are 140 x 140 x 60 micrometres ...

Graphene pushes the speed limit of light-to-electricity conversion

The efficient conversion of light into electricity plays a crucial role in many technologies, ranging from cameras to solar cells. It also forms an essential step in data communication applications, since it allows for information ...

Hair sensor uncovers hidden signals

An "artificial cricket hair" used as a sensitive flow sensor has difficulty detecting weak, low-frequency signals – they tend to be drowned out by noise. But now, a bit of clever tinkering with the flexibility of the tiny ...

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