Droplet-array sandwiching technology (DAST) lets one use droplets as tiny reaction chambers or cell culture media. In a recent study, scientists demonstrated how novel techniques to control the ...

The laser oscillation is electrically switchable during optical pumping by applying a vertical electric field to the droplet. “Electromagnetic and fluid dynamics simulations reveal the deformation of ...

Jun 09, 2025 Single droplet nanogenerator turns raindrops into usable electricity A new device captures the energy of individual raindrops and converts it into direct current electricity, offering a ...

In the study, the activated droplet power source produced a current which persisted for over 30 minutes. The maximum output power of a unit made of 50 nanolitre droplets was around 65 nanowatts (nW).

When an electric field is applied to the droplet by positioning it between electrodes, the spherical droplet deforms into an ellipsoidal shape, causing the laser light emission to cease. This ...