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......»»
Researchers manage to generate attosecond pulses at 100 kHz repetition rate
Attosecond laser pulses in the extreme ultraviolet (XUV) are a unique tool enabling the observation and control of electron dynamics in atoms, molecules, and solids. Most attosecond laser sources operate at a pulse repetition rate of 1 kHz (1,000 sho.....»»
A chip-scale broadband light source in silicon carbide
Optical frequency combs have changed science and technology as we know it. Responsible for measuring things like infrared and ultraviolet light, greenhouse gases, atomic clocks, and disease, optical frequency combs act as rulers that measure light. B.....»»
Smoke from major wildfires destroys the ozone layer, study shows
A new study shows that smoke from wildfires destroys the ozone layer. Researchers caution that if major fires become more frequent with a changing climate, more damaging ultraviolet radiation from the sun will reach the ground......»»
New paradigm in atmospheric gas sensing and molecular identification
Graphene, an atomic-thick sheet of carbon has found immense applications in gas sensors due to its single-molecule sensitivity, low-noise levels, and high carrier density. However, graphene's much-heralded sensitivity also means it is inherently non-.....»»
Changing the handedness of molecules
Researchers at Kanazawa University report in Proceedings of the National Academy of Sciences a responsive molecular system that, through chemical reactions, inverses its chirality before becoming racemic......»»
Ultraviolet instrument to play integral part of NASA"s Europa Clipper mission
An ultraviolet spectrograph (UVS) designed and built by Southwest Research Institute (SwRI) is the first scientific instrument to be delivered for integration onto NASA's Europa Clipper spacecraft. Scheduled to launch in 2024 and arrive in the Jovian.....»»
Live wire: New research on nanoelectronics
Proteins are among the most versatile and ubiquitous biomolecules on earth. Nature uses them for everything from building tissues to regulating metabolism to defending the body against disease......»»
The secret ultraviolet colors of sunflowers attract pollinators and preserve water
Flowers are one of the most striking examples of diversity in nature, displaying myriad combinations of colors, patterns, shapes and scents. They range from colorful tulips and daisies, to fragrant frangipani and giant, putrid-smelling corpse flowers.....»»
Lextar Electronics develops UV-C LED disinfection solutions
Vertically-integrated LED maker Lextar Electronics has developed UV(ultraviolet)-C LED disinfection solutions and has obtained third-party certification that its disinfection effects exceed 99.9%, according to the company......»»
Single-molecule optofluidic microsensor with interface whispering gallery modes
Optical evanescent microsensors have attracted considerable research interests since they can detect unlabelled molecules and monitor their interactions in real time and in situ with ultrahigh sensitivity, fast response, and miniature footprint. Howe.....»»
Scientists develop "exceptional" surface to explore exotic physics
By demonstrating exceptional control of an open optical system, an international research team has provided a path to experimentally measure and test exotic phenomena and gain insights into new physics with exquisite sensitivity......»»
Novel design method proposed for reflective optical system with low tilt-error sensitivity
Characterized by large aperture and long focal length, the reflective optical system has the advantages of small number of optical elements and simple optical structure. But the intrinsic aberration and the misalignment derived aberration increase ex.....»»
Will TSMC"s drive to reduce EUV carbon emissions power the green hydrogen industry chain?
Semiconductor foundry TSMC has established a 2030 energy-savings goal for its suppliers, partly driven by the fact that extreme ultraviolet (EUV) lithography consumes a large amount of hydrogen and generates a lot of carbon dioxide (CO2). Relevant su.....»»
Exploring the hyperchaos of mid-infrared lasers
Chaos, often popularized as the 'butterfly effect', describes the irregular phenomenon of deterministic systems. Based on the unique features of sensitivity to initial conditions and unpredictability of future evolutions, chaos from laser diodes has.....»»
Gelatin foams show unexpected ultralong organic phosphorescence for optical applications
Strong, lightweight and biocompatible foams glow in the dark when ultraviolet light is shone on them, RIKEN chemists have discovered. This phosphorescence could have diverse applications, such as imaging biological samples under the microscope......»»
How DNA is preserved in archaeological sediments for thousands of years
Sediments in which archaeological finds are embedded have long been regarded by most archaeologists as unimportant by-products of excavations. However, in recent years it has been shown that sediments can contain ancient biomolecules, including DNA......»»
Skin sensing made easier: Improved methods facilitate monitoring of body movement and health
Scientists simplify fabrication methods and model human skin structure in designing wearable sensors. This methodology reduces costs, enhances scalability and modular fabrication, and provides effective, wide-ranging sensitivity in wearable pressure.....»»
How diet influences taste sensitivity and preference
What you eat influences your taste for what you might want to eat next. So claims a University of California, Riverside, study performed on fruit flies. The study offers a better understanding of neurophysiological plasticity of the taste system in f.....»»
Exploring factors impacting the sensitivity of amorphous oxide semiconductors to externally induced impurities
In recent years, electronics engineers have been trying to broaden the pool of available semiconducting materials, to enable the development of a wider range of devices. One emerging class of semiconductors are amorphous oxide semiconductors (AOSs),.....»»
Transistor-based sensors offer hope for rapid diagnosis and treatment for COVID-19 and other infections
A solid-state metal oxide transistor-based technology can detect tiny quantities of biomolecules, such as DNA and COVID-19 spike protein, in less than two minutes......»»