Solar cells made from silicon are projected to be a prominent factor in future renewable green energy equations, but so far the promise has far exceeded the reality. While there are now silicon photovoltaics that can convert sunlight into electricity at impressive 20 percent efficiencies, the cost of this solar power is prohibitive for large-scale use. Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab), however, are developing a new approach that could substantially reduce these costs.
Was genau sind Nanopartikel? Was versteht man unter Exposition? Wann sprechen Toxikologen von einem Risiko? Diese und andere Fragen zur Nanotechnologie beantworten Experten auf einer jetzt gestarteten Internet-Plattform.
CSIRO scientist Dr Tara Sutherland and her team have achieved another important milestone in the international quest to artificially produce insect silk. They have hand-drawn fine threads of honeybee silk from a 'soup' of silk proteins that they had produced transgenically.
Launched in May 2009, ENPRA (Engineered NanoParticle Risk Assessment) is a major new European Framework 7 project to develop and implement a novel integrated approach for engineered nanoparticle risk assessment.
Oxford University has announced the dates for its 2010 Nanotechnology Summer School. The Summer School Programme offers five one-day courses designed to introduce participants to the advances that are being made in the rapidly developing field of nanotechnology. The courses focus on nanotechnology for energy, biomedical nanotechnology and nanosafety.
After two years of consultation, the FramingNano Governance Platform as the final outcome of the corresponding FP7 research project has been published. The Platform describes a heuristic process of how current and future challenges in nanotechnology governance can be identified, assessed and decided on, and proposes a number of strucutal elements to achieve this.
The potential of thin ferroelectric films for visible-light photovoltaic devices has now been demonstrated by researchers from the A*STAR Institute of Materials Research and Engineering and the National University of Singapore.
A new study reveals that thermocells based on carbon nanotube electrodes might eventually be used for generating electrical energy from heat discarded by chemical plants, automobiles and solar cell farms.
Tested on fathead minnows - an organism often used to test the effects of toxicity on aquatic life - nanosilver suspended in solution proved toxic and even lethal to the minnows. When the nanosilver was allowed to settle, the solution became several times less toxic but still caused malformations in the minnows.
Scientists from the Functional Materials Group at the University of Kent's School of Physical Sciences have expanded the potential uses of glass by developing an experimental technique that reveals more clearly how atoms in glass vibrate.