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......»»
What causes tropospheric ozone pollution over northern Tibetan Plateau?
Atmospheric ozone, which can regulate the amount of incoming ultraviolet radiation on the Earth's surface, is important for the atmospheric environment and ecosystems. Tropospheric ozone, primarily originating from photochemical reactions, is the thi.....»»
NASA"s Webb to study how massive stars" blasts of radiation influence their environments
In a nearby stellar nursery called the Orion Nebula, young, massive stars are blasting far-ultraviolet light at the cloud of dust and gas from which they were born. This intense flood of radiation is violently disrupting the cloud by breaking apart m.....»»
Beautiful images show the stripes of Jupiter in three different wavelengths
If you think Jupiter is beautiful in the visible light spectrum, wait until you see it in infrared and ultraviolet......»»
Dalian coherent light source reveals oxygen production from three-body photodissociation of water
The provenance of oxygen on Earth and other solar planetary bodies is a fundamental research issue. It is widely accepted that the prebiotic pathway of oxygen production in the Earth's primitive atmosphere was via vacuum ultraviolet (VUV) photodissoc.....»»
Water muting with THz optoacoustics: A breakthrough for biomedical applications
Radiation at terahertz frequencies (wavelengths between 0.03 and 0.3 mm) can be used successfully to analyze the structural dynamics of water and biomolecules. But applying the technique to aqueous solutions and tissues remains challenging, since ter.....»»
Selective mRNA degradation via autophagy: A novel role for autophagy in gene regulation
Optimal cell function requires a fine balance between the synthesis and degradation of biomolecules. Autophagy is the process by which cells degrade and recycle their own components, helping to clean up and maintain the cell's internal environment an.....»»
Efficient generations of complex vectorial optical fields with metasurfaces
Vectorial optical fields (VOFs) exhibiting arbitrarily designed wave-fronts and polarization distributions are highly desired in photonics. To efficiently generate arbitrary VOFs, scientists in China proposed a generic approach based on metasurfaces.....»»
New method offers insights into tension-sensitivity of potassium channels
Ion channels play an indispensable role in cellular physiology, and understanding the physical features that affect ion channel functions is a matter of considerable interest to biologists. Given that mechanosensitivity is an intrinsic feature of cel.....»»
Ozone pollution harms maize crops, study finds
Although stratospheric ozone protects us by filtering out the sun's ultraviolet radiation, tropospheric ozone is a harmful pollutant. A new study has shown that ozone in the lower layers of the atmosphere decreases crop yields in maize and changes th.....»»
Swiss Robots Use UV Light To Zap Viruses Aboard Passenger Planes
A robot armed with virus-killing ultraviolet light is being tested on Swiss airplanes, yet another idea aiming to restore passenger confidence and spare the travel industry more pandemic pain. Reuters reports: UVeya, a Swiss start-up, is conducting t.....»»
Sexist online translators little gender sensitivity training
Online translation tools have helped us learn new languages, communicate across linguistic borders, and view foreign websites in our native tongue. But the artificial intelligence (AI) behind them is far from perfect, often replicating rather than re.....»»
Track Your UV Exposure In Real Time With This DIY Meter
Know when you’ve had enough sun before you get burned Illustration: James Provost While editing an article about skin cancer early in my career, I learned many not-so-cheerful facts about how ultraviolet light causes.....»»
Method offers inexpensive imaging at the scale of virus particles
Using an ordinary light microscope, MIT engineers have devised a technique for imaging biological samples with accuracy at the scale of 10 nanometers—which should enable them to image viruses and potentially even single biomolecules, the researcher.....»»
Scientists discover a new auroral feature on Jupiter
The SwRI-led Ultraviolet Spectrograph (UVS) orbiting Jupiter aboard NASA's Juno spacecraft has detected new faint aurora features, characterized by ring-like emissions, which expand rapidly over time. SwRI scientists determined that charged particles.....»»
Pressure sensor with high sensitivity and linear response based on soft micropillared electrodes
In recent years, with the rapid development of flexible electronic skins, high-performance flexible tactile sensors have received more attention and have been used in many fields such as artificial intelligence, health monitoring, human-computer inte.....»»
Metasurfaces for manipulating terahertz waves
THz waves have a plethora of applications ranging from biomedical and medical examinations, imaging, environmental monitoring, to wireless communications, because of abundant spectral information, low photon energy, strong penetrability, and shorter.....»»
Parsing dopamine"s different pain sensitivity role in males, females
Males and females, generally speaking, experience and respond to pain differently, but scientists have yet to understand all the brain circuits involved in these differences. Now, new research shows how neurons use dopamine to regulate pain different.....»»
A single-molecule electrical approach for amino acid detection and chirality recognition
Analytical chemistry aims to efficiently discriminate between two amino acids. In a new report in Science Advances, Zihao Liu and a research team in Chemistry, Physics, and Materials Science in China and Japan, used a single-molecule electrical metho.....»»
Method for determining electron beam properties could help future ultraviolet, X-ray synchrotron light sources
The detected intensity from two coherent point-like light sources depends on their relative positions. It is a well-known phenomenon called optical interference. In general, the intensity can range from zero (destructive interference) to some maximum.....»»
Losing cultural context in emergency communication can be a matter of life and death
Can a butterfly in Chicago cause a tornado in Hong Kong? A metaphorical concept called the "butterfly effect" describes the sensitivity of a system to minor changes. The use of this concept has grown significantly in many technical fields, such as in.....»»