Using ‘core@shell’ nanocrystals with atomically conformal metal laminations, researchers have created a method that greatly increases the performance of plasmonic photocatalysts. Core@shells Nanocrystals with a core surrounded by a shell can use the interfacial synergy between the core and shell equivalents, making them useful in catalysis, electronics, and displays. The core plasmonic nanoparticles (gold) surface [..]

Outliers of a population, e.g., cells with a rare function that arise in fewer than one in a million individuals, are of great interest to biologists. The inherent balance with microscopes between viewing cells at a sufficient spatial resolution while still keeping a large field of view to capture unique specimens has impeded these investigations. [..]

Magnetic Resonance Imaging (MRI) often makes patients experience anxiety and sometimes distress before and during scanning. Researchers have developed an MRI-compatible virtual reality (VR) system to create a different experience. The strong sense of immersion with VR could create sensory experiences designed to avoid the perception of being enclosed and provide new modes of diversion [..]

Researchers have developed inexpensive breathalyzers integrated into the screens of smartphones or wearables. The new technology uses the evaporation rate of the fog produced by the breath on the phone screen, which increases with increasing breath alcohol content. The breathalyzers use a photodiode placed on the side of the screen to measure the signature of [..]

Scientists have developed an innovative optical system to precisely measure and control high-power laser beams’ position and pointing angle with unprecedented accuracy – without interrupting or disturbing the beams. Even in the most regulated lab setting, laser beams wander around on a microscopic scale due to vibrations and variability. The difference between excellent science and [..]

A team of researchers has applied deep learning to scanning electron microscopy to develop a super-resolution imaging technique. It can convert a low-resolution microstructure image into a super-resolution image. In modern-day materials research, scanning electron microscopy images play a crucial role in developing new materials, from microstructure visualization and characterization to numerical material behavior analysis. [..]

Researchers have created robotic diagnostic imaging equipment that automatically detects and scans a patient’s eyes for indicators of various eye illnesses. The new device, which combines an imaging scanner and a robotic arm, can track and image a patient’s eyes in under a minute and provide images as clear as those produced by standard scanners [..]

Lower temperatures cause reduced mobility of tiny components in almost all materials. When there is a lack of heat energy, atoms are less likely to change their location or magnetic moments’ direction: they freeze. Scientists have seen the opposite behavior in a nickel oxide material related to high-temperature superconductors for the first time. When this [..]

With the introduction of flexible materials, photonics can furnish numerous intriguing opportunities for fundamental and applied research, enabling many applications beyond its electronic counterpart’s capabilities. It is non-invasive, ultrasensitive to external stimuli, and immune to electromagnetic interference of photons as signal carriers. Photonic devices have demonstrated exceptional optical modulation and sensing performance, indicating enormous promise [..]

Cone-beam computed tomography (CBCT) is becoming increasingly popular for maxillofacial imaging. It can supply high-resolution three-dimensional (3D) images without distortion and superimposition of bone and other dental structures. Researchers tested a novel AI system based on deep learning methods to determine its real-time performance of CBCT imaging diagnosis of anatomical landmarks, pathologies, clinical effectiveness, and [..]

The holographic display may rectify many refractive defects, produce high-resolution images, and enable focus cues by modifying the complicated wavefront of coherent light with a spatial light modulator. It could be advantageous to have a hologram rendering using rapid and accurate calculations in any situation. Researchers developed a vision-correcting holographic display with hologram acquisition based [..]

Voice biometrics is a powerful and convenient form of biometrics that will be crucial in enhancing anti-fraud technology. Whereas one type of biometrics provides decent security against would-be hackers, two provide significantly greater protection, resulting in lower fraud rates. Using both face and voice biometrics makes the verification process nearly impregnable to fraudsters, providing four [..]

A pair of studies show that a quasiparticle called a plasmon polariton can be pulled with and against an electron flow, which could lead to more efficient light manipulation at the nanoscale. When immersed in an electrical current flowing through a sheet of graphene, quasiparticles comprised of photon and electron waves — plasmon polaritons — [..]

Scientists have developed a new technique to speed up enzyme study. It is called HT-MEK — short for High-Throughput Microfluidic Enzyme Kinetics. It can compress years of work into just a few weeks by enabling thousands of enzyme experiments to be performed simultaneously. HT-MEK could give insights into how even the most distant sections of [..]

Ultrathin metasurfaces generate multiform beams (electromagnetic, multi-direction, multi-polarization, multi-frequency, and multi-beam) with promising applications in numerous optical traps, modern communication systems, and complex environment identification. However, their capacity to generate required multiform beams concurrently limits their application. Researchers developed a multifunctional surface with a polarization selection structure and integrated electric and magnetic systems to overcome [..]

Using atomic force microscopy-based, time-traced imaging and force spectroscopy measurements, researchers report changes in cancer cells’ biomechanics and biophysical properties caused by standard chemotherapeutic drugs. The researchers add to our understanding of the interactions between hypoxia and chemotherapeutic drugs. The stiffness kinetics of untreated cancer cells remain consistent in both normoxia and hypoxia, regardless of [..]

The fatality rate for uveal melanoma, a rare and dangerous eye disease, has remained unchanged for the past 40 years. New treatments to preserve eyesight and avoid mortality are urgently needed because half of the melanomas spread to other body organs, resulting in death in less than a year. Researchers have discovered a small chemical [..]

Photonics integration is gaining pace in semiconductors, particularly in heterogeneous multi-die packages, as chipmakers look for innovative solutions to overcome power constraints and deal with growing data volumes. Since the end of Dennard scaling, which occurred at the 90nm node, power has become increasingly challenging. There are more transistors per mm2, and the wires are [..]

Researchers have devised a new computational de-scattering approach termed de-scattering with excitation patterning in temporal focusing microscopy (DEEP-TFM). They employed two-photon patterned excitation with wide-field temporal focusing, but the signal was detected using a wide-field imaging detector. They created a modified temporal focusing microscope that uses a digital micromirror device to transmit arbitrary excitation patterns [..]

Boiling is a complicated physical phenomenon involving at least two phases of matter. Many factors contribute to the system. Liquid-to-gas conversion takes energy from heated surfaces, preventing overheating in everything from nuclear power plants to powerful computer chips. However, if surfaces become too heated, they may undergo a boiling crisis. Bubbles form quickly in a [..]