A good connection between carbon-based materials and external metallic leads is of major importance in nanodevice performance, an aspect where an important step has been surmounted by researchers by studying contacts of carbon nanostructures with atoms of different chemical nature.
A new Oxford spin-out firm is targeting the difficult challenge of manufacturing fullerenes, known as 'bucky-balls' because of their spherical shape, a type of carbon nanomaterial which, like graphene and carbon nanotubes, has unique physical properties leading to applications in areas as diverse as energy and medicine.
A quasiparticle called an exciton - responsible for the transfer of energy within devices such as solar cells, LEDs, and semiconductor circuits - has been understood theoretically for decades. But exciton movement within materials has never been directly observed.
The Nanophotonics Group of the Laser Zentrum Hannover has developed a method to print nanoparticles made of different materials with controlled, reproducible sizes and to precisely deposit these particles on a receiver substrate. As a result, for the first time, the scientists succeeded in generating and positioning perfectly round silicon nanoparticles with a diameter of 165 nm.
Research into using metamaterials in optics has already produced the possibility of an invisibility cloak. To take these ideas further into allied areas of advanced materials GBP 2.5 million is being invested by the Engineering and Physical Sciences Research Council.
New journal covers a wide range of responsible innovation topics such as the broader and more subtle issues of the moral, cultural, political, religious, democratic and sustainability implications of innovation and research.
Biologists at UC San Diego have succeeded in visualizing the movement within plants of a key hormone responsible for growth and resistance to drought. The achievement will allow researchers to conduct further studies to determine how the hormone helps plants respond to drought and other environmental stresses driven by the continuing increase in the atmosphere?s carbon dioxide, or CO2, concentration.
A technique using anesthesia-containing nanoparticles - drawn to the targeted area of the body by magnets - could one day provide a useful alternative to nerve block for local anesthesia in patients, suggests an experimental study.