Articles in 2009

Nanocapsules with polymeric shells can effectively deliver proteins into cells to trigger the activity of its substrates that are inside the cells.

New photonic nanostructures could have tunable optical properties controlled by forces from a laser.

Calculations suggest that bilayer graphene nanoribbons are very sensitive to low-energy photons.

Highly efficient solar cells can be produced by using zinc oxide nanowires infiltrated with lead selenide quantum dots.

A new hybrid phonon–exciton excited state in bilayer graphene can be tuned electrically, with possible application to phonon lasers.

Electrically induced light emission from an individual carbon nanotube p–n diode is both more efficient and has a narrower spectrum than previously demonstrated, allowing emission from free and localized excitons to be identified.

Circulating tumour cells can be captured in the bloodstream by magnetic nanoparticles, and the use of gold-plated carbon nanotubes as a photoacoustic imaging agent allows multiplexed in vivo detection of these cells.

A nanostructure consisting of a periodic array of the letter G produces a luminescent pattern whose handedness depends on the chirality of the illuminating light.

Metal clusters of different sizes may have particular electronic structures that affect their performance as catalysts.

Magnetic tunnel junctions that show large magnetoresistance changes and excellent temperature stability can be produced using a simple sputtering method.

Tiny copolymer micelles can effectively restore locomotion in rats after spinal cord injury.

Single-walled carbon nanotubes can be self-assembled into cross junctions using DNA origami, establishing these structures as programmable nanobreadboards.

The emergence of new fluid phenomena at the nanoscale will have applications in separation science and energy conversion.

Photosynthetic nanoparticles obtained from a thermophilic bacterium can produce a stable supply of hydrogen at temperatures up to 55 °C with a yield that is approximately 25 times greater than current hydrogen production strategies.

Incident photons may induce a huge voltage in metal nanowires, bringing the possibility of nanoscale optical detection.

Interface superconductivity in bilayer cuprate devices is sensitive to changes in just one layer of copper and oxygen atoms.

The fractional quantum Hall effect has been observed in ultraclean suspended graphene.

Nanoparticles can damage cellular DNA from a distance without entering the cells, suggesting the need to consider indirect effects when evaluating nanoparticle safety.

The cooling rates of fullerene ions have been measured at a storage ring in Japan.