Researchers identify pressure effects on nanomaterials

Fluorescence from CdSe quantum dot solids in environments varying from stable to high unstable show that small deviations from uniform stress distribution greatly affect the electronic properties. The blue represents cadmium, the yellow represents selenium and the red represents a cloud of electrons in their excited state. Image by Sebastien Hamel/LLNL


Engineers Prove Graphene is the Strongest Material

Jul 22, 2008
A representation of a diamond tip with a two nanometer radius indenting into a single atomic sheet of graphene.

Carbon Nanotubes as a Single-Photon Source

Jun 12, 2008
This atomic force microscope image shows a single-walled CNT with a height of 0.8 nm and length of 800 nm. Researchers found that, under low temperatures, CNTs emit one photon at a time, marking the first demonstration of ...

Nanopaper

Jun 09, 2008
Scientists report development of cellulose nanopaper, a superstrong material that could be used in the construction industry. Above is a cross-section of a fracture surface of a cellulose nanofibril film. Credit: Courtesy ...

Nanowire 'paper towel' for oil spills

Jun 02, 2008
MIT has developed a new material for absorbing oil and other organic pollutants. Here the material is used to remove a layer of gasoline (dyed blue) from a vial of water. Image courtesy / Francesco Stellacci, MIT, and Nature ...

Fibers

Jun 02, 2008
Scientists report development of a plastic that is 10 times more stretchable than that of the original material. Above is a micrograph of the electrospun nano-sized fibers. Credit: Courtesy of the American Chemical Society