enables
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Chemistry
Vanadium Phosphate enables low-cost pearlescent dye synthesis
Optical micrographs of (a, c) Vop and (b, d) HVP. The sample shows layered plate-like particles. This allows multiple light reflections to allow attractive rainbow colors to be visible even in different particles and different regions of the same particle. Credit: Shu Yin et al. One thing that never falls out of style is the class and elegance of pearls.…
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Nanotechnology
New perovskite growth method enables ultra-high resolution micro-LED displays
Remotely epitaxial crystalline perovskites for ultra-high resolution micro-LED displays. Credit: Professor Wu Yuchen’s group Microscale light-emitting diodes (micro-LEDs) are emerging as the next generation display technology for optical communications, augmented and virtual reality, and wearable devices. Metal halide perovskites show great potential for efficient light emission, long-range carrier transport, and scalable fabrication, and could be ideal candidates for bright LED…
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Science
High-speed control technique enables record fidelity in superconducting qubits
In the artist’s impression of a recent MIT experiment, the sphere in the center represents a qubit, illuminated by two control signals: electric charge (blue) and magnetic flux (purple). These control signals are designed to combine to produce circularly polarized microwaves that are not affected by counter-rotation effects. The signals consist of repeating waveforms and represent the similarity of control…
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Physics
Photoacoustic spectroscopy approach enables real-time detection of low gas concentrations
A new method for detecting and identifying gases at very low concentrations in real time adds coherent control to quartz-enhanced photoacoustic spectroscopy, which uses a quartz tuning fork to detect gas absorption. Credit: Florian Sterl, Sterltech Optics GmbH Researchers have developed a new method to quickly detect and identify gases at very low concentrations. This new approach, called coherently controlled…
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Physics
From starlight to visibility: researchers develop shortwave infrared technology that enables detection of starlight
Benchmarking HGFETs, InGaAs diodes, and other thin film photodetectors. Credit: Peking University Professor Zhang Zhiyong’s team at Peking University has developed a heterojunction-gate field-effect transistor (HGFET) that achieves high sensitivity in shortwave infrared detection, recording a specific detection power of over 1014 Jones at 1300nm, and detecting starlight. became possible. Their work was recently published in the journal Advanced Materials…
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Chemistry
Enhanced Raman microscopy enables clearer chemical imaging of cryofixed samples
Raman image of snap-frozen HeLa cells with high signal-to-noise ratio and wide field of view. Image acquisition time was 10 hours. The distribution of Raman signals from cytochromes (750 cm-1), lipids (2850 cm-1), and proteins (2920 cm-1) are shown in green, red, and blue, respectively. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adn0110 Understanding the behavior of the molecules and cells that…
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Nanotechnology
Nanopatterned graphene enables infrared ‘color’ detection and imaging
Professor Debashis Chanda of the UCF Center for Nanoscience and Technology sits near his infrared camera image in his lab. Chanda and a research group of UCF students have developed a new long-wave infrared detection technique. (Photo courtesy of Debashi Chanda). Credit: Debashis Chanda Debashis Chanda, a University of Central Florida (UCF) researcher and professor at the UCF Center for…
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Physics
X-ray diffraction enables in-situ ablation depth measurement in aluminum
Credit: Pixabay/CC0 Public Domain When laser energy is applied to a target material, a number of complex processes occur over length and time scales that are too small to be observed visually. To study and ultimately fine-tune such processes, researchers turn to computer modeling. However, these simulations rely on accurate equation of state (EOS) models that describe the thermodynamic properties…
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Science
Composite metalens enables distortion-free imaging over a wide field of view.
(a) Singlet metalenses undergoes large barrel distortion. (b) Composite metalens effectively eliminates barrel distortion. (c,d) Raytracing modeling of (c) singlets and (d) composite metalens. The angle of incidence of light (in air) varies between 0° and 70° in 10° steps. Credit: Hanyu Zheng et al. In a recent study, researchers developed a composite metalens that enables distortion-free imaging. The study,…
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Science
Paper-based sensor enables rapid cardiac diagnosis in 15 minutes
Deep learning-enhanced paper-based vertical flow assay for sensitive troponin detection using nanoparticle amplification. Credit: Ozcan Lab @UCLA In a significant advance in point-of-care medical diagnostics, a UCLA research team has introduced a deep learning-enhanced paper-based vertical flow assay (VFA) that can detect cardiac troponin I (cTnI) with high sensitivity. This innovative assay has the potential to democratize access to rapid…
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