Silicon electronics faces a challenge: the latest circuits measure just 7nm wide - between a red blood cell (7,500nm) and a single strand of DNA (2.5nm). The size of individual silicon atoms (around 0.2nm) would be a hard physical limit (with circuits one atom wide), but its behaviour becomes unstable and difficult to control before then.
Miniscule artificial scaffolding units made from nano-fibre polymers and built to house plant cells have enabled scientists to see for the first time how individual plant cells behave and interact with each other in a three-dimensional environment.
The University of Nottingham is to lead a GBP6.5m research project which aims to make the leap from 2D to 3D in the development of advanced materials and realise the true potential of regenerative medicine and medical devices for the future.
Scientists have caught a glimpse of the elusive toxic form of the Alzheimer's molecule, during its attempt to bore into the outer covering of a cell decoy, using a new method involving laser light and fat-coated silver nanoparticles.
LEGO2NANO aims to bring the world of nanotechnology to school classrooms by initiating projects to develop low-cost scientific instruments such as the Open AFM - an open-source atomic force microscope assembled from cheap, off-the-shelf electronic components, Arduino, Lego and 3D printable parts.
A recent review found some serious shortcomings of the risk assessment process for determining the safety of nanomaterials. The authors argue that these shortcomings are so significant that risk assessment is effectively a naked emperor.
Quantum physics tell us that even massive particles can behave like waves, as if they could be in several places at once. This phenomenon is typically proven in the diffraction of a matter wave at a grating. In a European collaboration, researchers carried this idea to the extreme and observed the delocalization of molecules at the thinnest possible grating, a mask milled into a single layer of atoms.