Like fish on waves: electrons go surfing

Researchers were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighbouring QD. A single electron "surfs" thus from one quantum dot to the next like a fish on a wave. Such manipulation of a single electron will in the future also enable the combination of considerably more complex quantum bits instead of classical bits.

Designing effective figures for scientific papers

Today we are going to tackle a general topic that deals with how data is represented in scientific papers. The use of illustrations in scientifi c publications is a longstanding tradition that goes back thousands of years. In the course of writing 1,200 Nanowerk Spotlights over the past six years, we have worked our way through thousands of papers. And if one thing has stood out, it is the quality of the illustrations included in these papers: some are just excellent and capture the essence of the findings; others, well, let's just say they could be improved upon. Here are five specific recommendations on how scientists should design effective figures.

IV International Nanotechnology Forum RUSNANOTECH 2011 will be held on October 26-28

RUSNANOTECH Forum is one of the central events of the year in the field of innovation in Russia. Traditionally, the event is attended by leading politicians, scientists and heads of major domestic and foreign companies. The Forum is focused on the main trends of global scientific and technological development and the advanced experience of innovative development commercialization.

The next generation of switchable glass: the micro-blinds

The National Research Council, Canada is developing an innovative technology for smart glass with possible applications in sectors such as building, aircraft, automotive and displays. The micro-blinds are actuated by electrostatic forces; they allow the dynamic control of light transmission at remarkable speed and could lead to major energy savings in buildings. The idea is based on a cost-efficient manufacturing scheme.

Research highlights advances in nano-optics – nanoplasmonics and metamaterials

Light-matter interaction at the nanometer scale has turned into a very fast-growing field of research known as nano-optics. To highlight breakthroughs in the specific areas of nano-optics known as nanoplasmonics and metamaterials, the editors of the Optical Society's open-access journal Optical Materials Express have published a special Focus Issue on Nanoplasmonics and Metamaterials.

Controlling silicon evaporation improves graphene

Scientists from the Georgia Institute of Technology have for the first time provided details of their "confinement controlled sublimation" technique for growing high-quality layers of epitaxial graphene on silicon carbide wafers. The technique relies on controlling the vapor pressure of gas-phase silicon in the high-temperature furnace used for fabricating the material.

Vitamin D May Be Tied to Heart Disease Via Genes

(HealthDay News) -- New research points to the possibility of a genetic link between vitamin D and heart disease.

People with high blood pressure who had a gene variant that reduces vitamin D activation in the body were found to be twice as likely as those without the variant to have congestive heart failure, the study found.

The finding may lead to a way to identify people at increased risk for heart disease, according to Robert U. Simpson, an assistant professor of pharmacology at the University of Michigan Medical School and his research colleagues.

They analyzed the genetic profiles of 617 people. One-third had hypertension, one-third had hypertension and congestive heart failure, and the remaining third served as healthy controls.

The researchers found that a variant in the CYP27B1 gene was associated with congestive heart failure in people with hypertension. The study is in the November issue of Pharmacogenomics.

Previous research showed that mutations that inactivate the gene reduce the conversion of vitamin D into an active hormone. Read more...

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