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IMAGE: Researchers created a new plasmonic metasurface that sandwiches fluorescent dye molecules between a gold film and 100-nanometer-wide silver cubes. When light hits this structure, it excites localized surface plasmons, which. view more
Credit: Maiken H. Mikkelsen, Duke University
WASHINGTON Researchers have created a new plasmonic metasurface that achieves record high light efficiency over the entire centimeter-scale metasurface. The advance makes the new nanostructured thin film practical for use in a variety of applications from light-based communication to fluorescence-based biosensing. The major obstacles for using plasmonic structures for practical applications is that they are either too inefficient or their nanoscale properties aren t easily scalable to larger sizes, said research team leader Maiken H. Mikkelsen from Duke University. We designed and optimized a plasmonic metasurface that overcomes both of these limitations.
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For some 15,000 years, dogs have been our hunting partners, workmates, helpers and companions. Could they also be our next allies in the fight against COVID-19?
According to UC Santa Barbara professor emeritus Tommy Dickey(link is external) and his collaborator, BioScent researcher Heather Junqueira, they can. And with a review paper(link is external) published in the
Journal of Osteopathic Medicine they have added to a small but growing consensus that trained medical scent dogs can effectively be used for screening individuals who may be infected with the COVID-19 virus.
This follows a comprehensive survey of research devoted to the use of trained scent dogs for detecting COVID. The most striking result is that studies have already demonstrated that dogs can identify people who are COVID-19 positive, Dickey said of their findings. Not only that, he added, they can do it non-intrusively, more rapidly and with comparable or possibly better accuracy than our convent
The scientists analyzed how magnetic nanoparticles can be manipulated in in vitro conditions to achieve a selective antitumor effect. The method is based on the combined action of nanoparticles and permanent magnetic fields on human tumor cells.
Credit: Peter the Great St.Petersburg Polytechnic University
The energy of the future lies in the area of the controlled thermonuclear fusion. The scientific group from Peter the Great St.Petersburg Polytechnic University (SPbPU), headed by Professor Vladimir Rozhansky, is directly involved in the establishment of the world s largest experimental thermonuclear reactor ITER. Researchers discovered new effects, which affect the energy flow in the reactor. The theoretical predictions were confirmed by the experiments on two tokamaks. The research results were published in the scientific journal
Plasma Physics and Controlled Fusion .
The scientific group of Polytechnic University is engaged in modeling of the edge plasma. The researchers aim to identify how and what types of impurities to enter the reactor, and how the power coming from the central zone to be redistributed, and so on. Scientists of SPbPU developed SOLPS-ITER transport code. Currently it is announced as
Scientists have made a vital step towards understanding the origins of Parkinson s Disease - the fastest growing neurological condition in the world.
A study published in