This study demonstrated that the thickness of the organic molecule layer that typically surrounds the quantum dots is crucial in attaining sufficiently high efficiency of this light/energy transfer into the graphene. In other works, the thinner the organic layer, the better.
Mit dünnen Schichten aus Kohlenstoff-Nanoröhren lassen sich neue Technologien realisieren. Würzburger Forscher haben ein Verfahren unter die Lupe genommen, mit dem solche Schichten hergestellt werden - und neue Erkenntnisse gewonnen.
The new report examines the changes since the group's 2008 report including the development of new food, food contact and agricultural products. It reviews the current literature relating to the potential environmental, health and safety impacts associated with nanotechnology.
When scientists set out to improve MR imaging, they turned current contrast agent technology on its head - or rather, they turned it inside out. The new compound they designed is not only more effective, but also self-assembling.
Researchers at the National Institute of Standards and Technology (NIST), working in collaboration with the Naval Research Laboratory, have found that a particular species of quantum dots that weren't commonly thought to blink, do.
This gift from science just keeps on giving. Measurements taken at the National Institute of Standards and Technology (NIST) show why a material already known to be good at separating components of natural gas also can do something trickier: help convert one chemical to another, a process called catalysis.
The novel system is made up of bundled capillary tubes, costs less than a $1 to make and requires no special fabrication technology or expertise, yet consistently yields large quantities of uniform and sturdy vesicles.
Inspired by fictional cyborgs like Terminator, a team of researchers at the University of Michigan and the University of Pittsburgh has made the first bionic particles from semiconductors and proteins.