Gold nano-stars for intracellular delivery

Researchers from the Russian Academy of Sciences developed a new method for star-shaped nanoparticles synthesis based on laser irradiation. A wide range of customizable conditions provides an opportunity to create a comfortable ...

Slow 'hot electrons' could improve solar cell efficiency

Photons with energy higher than the band gap of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy in respect to the band gap is lost very fast, as it is converted into heat and ...

New formula expected to spur advances in clean energy generation

Researchers from the University of Houston have devised a new formula for calculating the maximum efficiency of thermoelectric materials, the first new formula in more than a half-century, designed to speed up the development ...

Physicists design zero-friction quantum engine

(Phys.org) —In real physical processes, some energy is always lost any time work is produced. The lost energy almost always occurs due to friction, especially in processes that involve mechanical motion. But in a new study, ...

Relaxing DNA strands by using nano-channels

A simple and effective way of unravelling the often tangled mass of DNA is to 'thread' the strand into a nano-channel. A study carried out with the participation of the International School for Advanced Studies in Trieste ...

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