Detecting single molecules and diagnosing diseases with a smartphone

Researchers show that the light emitted by a single molecule can be detected with a low-cost optical setup. Their prototype could facilitate medical diagnostics.

Electron refrigerator: Ultrafast cooling mechanism discovered in novel plasma

Researchers have created a completely new type of plasma by combining state-of-the-art technologies using ultrashort laser pulses and ultracold atomic gases.

The light side of the Force: Creating a metal with laser light

Scientists have found out that semiconductors can be converted to metals and back more easily and more quickly than previously thought. This discovery may increase the processing speed and simplify the design of many common technological devices.

Researchers watch nanomaterials growing in real time

For the first time, a team of scientists has succeeded in capturing in real time the first few milliseconds in the life of a gold coating as it forms on a polymer.

Nanospheres measure the forces of cell motors

Special probes, germanium nanospheres, enable a higher resolution of displacements and forces that motor proteins generate.

A new quantum switch for electronics

Physicists have studied a quantum point contact between two conductors with external oscillating fields applied to the contact. They found that, for some types of contacts, an increase in the oscillation frequency above a critical value reduced the current to zero - a promising mechanism that can help create nanoelectronics components.

New wearable device turns the body into a battery

The device is stretchy enough that you can wear it like a ring, a bracelet or any other accessory that touches your skin. It also taps into a person's natural heat - employing thermoelectric generators to convert the body's internal temperature into electricity.