Physicists solve decades-old scientific mystery of negative differential resistance

Device showing backwards electrical behavior enables faster, cheaper, smaller electronic devices.

Captured on video: DNA nanotubes build a bridge between 2 molecular posts

In a microscopic feat that resembled a high-wire circus act, researchers have coaxed DNA nanotubes to assemble themselves into bridge-like structures arched between two molecular landmarks on the surface of a lab dish.

New microscope chemically identifies micron-sized particles

Low-cost spectroscopy technique could allow detection of microscopic amounts of chemicals for applications in security, law enforcement and research.

Electrons 'puddle' under high magnetic fields, study reveals

Researchers used extremely high magnetic fields - equivalent to those found in the center of neutron stars - to alter electronic behavior. By observing the change in the behavior of these electrons, scientists may be able to gain an enriched understanding of material behavior.

The bond of two stars of chemistry: graphene and porphyrin

Porphyrins, the same molecules that convey oxygen in haemoglobin and absorb light during photosynthesis, can be joined to the material of the future, graphene, to give it new properties.