Ultraviolet metasurfaces can discriminate the handedness of biomolecules with attomolar sensitivity
Researchers at LSU, in collaboration with Zuse Institute in Berlin, Germany, have developed an ultraviolet metasurface that discriminates between left- and right-handed amino acids with attomolar sensitivity......»»
Graphene for the protection of paintings: paving the way for novel methods in art preservation and restoration
The exposure of colors used in artworks to ultraviolet (UV) and visible light in the presence of oxidizing agents triggers color degradation, fading and yellowing. These degradation mechanisms can lead to irreversible alteration of artworks. Protect.....»»
Piezoelectric microelectromechanical system-based optical metasurfaces
Optical metasurfaces can unprecedently regulate versatile wavefronts at the subwavelength scale. Most well-established optical metasurfaces are, however, static and feature well-defined optical responses that are determined by optical metasurface con.....»»
The thorny ethics of displaying Egyptian mummies to the public
Exhibits are popular, but curators must grapple with issues of cultural, racial sensitivity. Enlarge / A visitor looks at displayed artifacts at the National Museum of Egyptian Civilisation (NMEC) during its official reopening a day after the Ph.....»»
Micron to adopt EUV in DRAM manufacturing by 2024
Micron Technology has disclosed plans to start implementing extreme ultraviolet (EUV) technology in the manufacture of DRAM chips by 2024......»»
Striking gold: Synthesizing green gold nanoparticles for cancer therapy with biomolecules
Scientists have designed an eco-friendly protocol for synthesizing gold nanoparticles with optimized morphology for near-infrared light absorption using a biomolecule called B3 peptide. They report the synthesis of triangular and circular gold nanopl.....»»
"The focea": A region of improved vision in mice
Researchers have discovered that the visual cortex of mice contains a region of enhanced visual sensitivity dubbed the 'focea', making the mouse a better model of human vision than previously expected......»»
Conservatives" sensitivity to pandemic threat suppressed by distrust of science, media
Researchers studying the intersection of politics and psychology have long documented a link between threat sensitivity and social conservatism: People who are more socially conservative tend to react more strongly to threats. Conversely, those who a.....»»
Click reaction for living systems: Bioorthogonal hydroamination of activated linear alkynes
Increasing our understanding of cellular processes requires information about the types of biomolecules involved, their locations, and their interactions. This requires the molecules to be labeled without affecting physiological processes (bioorthogo.....»»
New coronavirus mass test up to 100 times more sensitive than rapid antigen tests
A new coronavirus test developed at the University Hospital Bonn can analyze a large number of swabs simultaneously using sequencing technology and has a sensitivity comperable to the common qPCR test. The innovative method offers great potential, es.....»»
Venus’ clouds too dry, acidic for life
A new analysis checks the water available in different planets' atmospheres. Enlarge / Venus' thick atmosphere was photographed in ultraviolet light in 1979 by the Pioneer Venus Orbiter. (credit: NSSDCA Photo Gallery) Last year, a study made w.....»»
Attomolar sensing: Fabrication of surface-enhanced Raman scattering substrate
Surface-enhanced Raman scattering (SERS) permits multidisciplinary trace analyses and the potential detection of single molecules. Shi Bai and Koji Sugioka from RIKEN report a comprehensive review of recent progress in strategies for the fabrication.....»»
Researchers develop compact, intense XUV laser
An international team of researchers has demonstrated a new concept for the generation of intense extreme-ultraviolet (XUV) radiation by high-harmonic generation (HHG ). Its advantage lies in the fact that its footprint is much smaller than currently.....»»
Synthesizing green gold nanoparticles for cancer therapy with biomolecules
Scientists at Tokyo Institute of Technology (Tokyo Tech) have designed an eco-friendly protocol for synthesizing gold nanoparticles with optimized morphology for near-infrared light absorption using a biomolecule called B3 peptide. In their paper, th.....»»
Ozone pollution has increased in Antarctica
Ozone is a pollutant at ground level, but very high in the atmosphere's "ozone layer," it absorbs damaging ultraviolet radiation. Past studies have examined ozone levels in the Southern Hemisphere, but little is known about levels of the molecule in.....»»
Astronomers probe planetary nebula NGC 6302 with Hubble
Using the Hubble Space Telescope (HST), astronomers have conducted near-ultraviolet through near-infrared observations of a young planetary nebula (PN) known as NGC 6302. Results of the monitoring campaign, presented May 28 on arXiv.org, could help u.....»»
Clever biomolecular labeling enables identification of immune cells
Biomolecules regulate the biological functions inside every living cell. If scientists can understand the molecular mechanisms of such functions, then it is possible to detect the severe dysfunction which can lead to illness. At a molecular level, th.....»»
Clever biomolecular labelling enables identification of immune cells
Biomolecules regulate the biological functions inside every living cell. If scientists can understand the molecular mechanisms, then it is possible to detect severe dysfunction. At a molecular level, this can be achieved with fluorescent markers that.....»»
Giving brown fat a boost to fight type 2 diabetes
Increasing a protein concentrated in brown fat appears to lower blood sugar, promote insulin sensitivity, and protect against fatty liver disease by remodeling white fat to a healthier state, a new study suggests. The finding could eventually lead to.....»»
Enantiomorph distribution maps for metals and metallic alloys
Left- or right-handedness is a symmetry property that many macroscopic objects also exhibit and which is of immense importance, particularly for the bioactivity of organic molecules. Chirality is also relevant for physical or chemical properties such.....»»
Novel SERS sensor helps to detect aldehyde gases
Prof. Huang Qing's group from the Hefei Institutes of Physical Science (HFIPS) developed a surface-enhanced Raman spectroscopy (SERS) gas sensor to detect aldehyde with high sensitivity and selectivity, which provided a new detection method for study.....»»