The light-warping structures known as metamaterials have a new trick in their ever-expanding repertoire. Researchers have built a silver, glass and chromium nanostructure that can all but stop visible light cold in one direction while giving it a pass in the other. The device could someday play a role in optical information processing and in novel biosensing devices.
Researchers are looking to combat dangerous sub-dermal implsnt infections by upgrading your new hip or kneecap in a fashion appreciated since ancient times - adding gold. The result is a new antibacterial material based on gold nanoparticles.
Scientists have proposed a new type of photo-energy detector - of infrared pulsed laser light - using a nanoporous ZnO/n-Si structure that would be relatively simple and inexpensive to develop. Photodetectors are a core component in optoelectronic devices, and this new detector could have expanded applications in the future.
Scientists don't fully understand how plastic solar panels work, which complicates the improvement of their cost efficiency, thereby blocking the wider use of the technology. However, researchers now have determined how light beams excite the chemicals in solar panels, enabling them to produce charge.
The Graphene Special Interest Group (GrapheneSIG) has published a Graphene Think Piece. The document was initiated by the UK's Technology Strategy Board (TSB) to 'inform a view on where and how the UK might best gain economic value from graphene related activities'.
Computer simulation shows how to make a crystal that would toggle like a light switch between conductive and non-conductive structures. This could lead to flexible electronic materials and, for instance, enable a cell phone to be woven into a shirt.
ElectroGraph is a project supported by the EU and its consortium consists of ten partners from both research institutes and industries. One of the main tasks of this project is to develop new types of supercapacitors with significantly improved energy storage capacities.
Nanotechnology offers solutions to pressing global issues, but they also have the potential to lead to unexpected risks and unintended consequences. A newly released book, Nanotechnology Environmental Health and Safety: Risk, Regulation and Management, offers insights into how these new technologies may be applied to build a sustainable future and provides practical strategies for identifying and mitigating the potential risks that accompany emerging nanotechnology.