In an experiment modeled on the classic "Young's double slit experiment" researchers have powerfully reinforced the understanding that surface plasmon polaritons move as waves and follow analogous rules.
The science of plasmonics describes how metals can essentially transmit and manipulate light waves at length scales much smaller than their wavelengths. Now, by redoing a classic optics experiment with plasmonics, engineers have made key insights into the nature and the practical limits of this up-and-coming nanoscale information technology.
A solid-state semiconductor membrane built from thin silicon layers doped with different impurities could be used in applications such as single-molecule detection, protein filtering and DNA sequencing.
The EU Parliament drew attention to the gap in knowledge of potential risks associated with nanotechnology, saying that the permitted limits for an additive in nanoparticle form should not be the same as when it is in traditional form.
Physicists describe a new way to view three-dimensional structures in real time. Although they haven't yet published 3-D movies, they managed to reconstruct the heights of tiny droplets using still images from 2-D movies.
In its continuing efforts to better understand the potential risks and benefits of nanotechnology, EPA, the U.S. Environmental Protection Agency, is inviting the public to comment on the agency's proposed approach to developing a Nanoscale Materials Stewardship Program (NMSP).
A discovery, known as acoustic plasmon, could have applications in the design of ultra-high velocity electronic devices for data storage, for use in nano-optics or biomaterials, as well as in the creation of new materials for medical applications.
EPA, the U.S. Environmental Protection Agency, invites you to exchange ideas and information on using nanotechnology to develop new ways to prevent pollution at their conference "Pollution Prevention through Nanotechnology Conference" on September 25-26, 2007 in Arlington, Virginia.