Spinning strands hint at folding dynamics

Scientists use magnetic beads to model microscopic proteins, polymers.

Vibrating nanoparticles interact

Placing nanodisks in groups can change their vibrational frequencies.

Chemical treatment improves quantum dot lasers

Scientists demonstrat that by adding extra electrons into their specially designed quantum dots, they can reduce this threshold to virtually zero.

Think laterally to sidestep solar cell production problems

Researchers have combined and rearranged different semiconductors to create so-called lateral p-n heterojunctions - a simpler process they hope will transform the fabrication of solar cells, self-powered nanoelectronics as well as ultrathin, transparent, flexible devices.

Nanoantenna arrays power a new generation of fluorescence-based sensors

Researchers have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.

Major advance in nanopore detection of peptides and proteins

Nanopore technology, which is used to sequence DNA, is cheap, hand-held and works in the jungle and in space. The use of this technology to identify peptides or proteins is now a step closer.

Long nanotubes make strong fibers

Researchers advance characterization, purification of nanotube wires and films.