Organ Chips - Microfluidic Device

Researchers have used Organ Chips technology to identify the antimalarial drug amodiaquine as a potent inhibitor of infection with SARS-CoV-2, the virus that causes COVID-19. The drug testing ecosystem greatly streamlines the process of evaluating the safety and efficacy of existing drugs for new medical applications and provides a proof-of-concept for the use of Organ [..]

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Multiplexers For Gratingless Integrated Tunneling

The terahertz range holds potential for ultra-wideband wireless communications applications, including 6G and beyond, due to large and under-utilized spectral bandwidth. Terahertz communications will benefit from channelization as individual channel bandwidths will be reduced, thereby simplifying baseband and intermediate-frequency (IF) circuits. Furthermore, passive multiplexers enable power combining of several independent sources at different frequencies, which [..]

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Deepfake Detection With Face Biometrics Technique

Researchers have developed a deepfake detection method that specifically focuses on a lightweight, low training complexity, and high-performance face biometrics technique with ideal size, weight, and power (SWaP). Deepfake refers to artificial intelligence-synthesized, hyper-realistic video content that falsely depicts individuals saying or doing something. The researchers set out to tackle the significant threat that deepfake [..]

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Dental Age Estimation

The estimation of dental age remains part of active research in forensic science. For accurate age estimation of living individuals in legal proceedings, a series of clinical and radiological examinations are carried out. The age estimation procedure often includes a physical examination, dental examination with dental status and an X-ray of the dentition, and an [..]

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Gas Sensor Platform Based On Metasurfaces

Researchers have developed a compact gas sensor platform that combines liquid crystals (LCs) with holographic metasurfaces, to promptly sense a volatile gas and provide instantaneous feedback through a visual holographic alarm. This technology integrates the advantages of the stimuli responsiveness of LCs and the compactness of metasurfaces while maximizing the effectiveness of the sensor by [..]

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Optics-On-A-Chip

Researchers demonstrate highly ultrafast x-ray optics-on-a-chip based on MEMS capable of modulating hard x-ray pulses exceeding 350 MHz, 103× higher than any other mechanical modulator, with a pulse purity >106 without compromising the spectral brilliance. Moreover, the timing characteristics of the devices can be tuned on-the-fly to deliver optimal pulse properties to create a host [..]

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Gene Therapy For Patients With Childhood Blindness

A new gene therapy for one of the most common forms of congenital blindness was found to be safe and improved patients’ vision. The therapy delivers working copies of GUCY2D to the eyes of patients who have severe vision impairments caused by mutations in the gene. The researchers found sustained improvements in both day and [..]

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Ultrasound Detector - Optomechanical Silicon Photonics

A highly sensitive optomechanical ultrasound detector integrated onto a silicon photonic chip has been developed by researchers. The device is 100 times more sensitive than state-of-the-art piezoelectric detectors of identical sizes. Their design could substantially improve the performance of ultrasound detectors in a wide variety of biomedical applications. The researchers used a new optomechanical ultrasound [..]

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Nuclear Magnetic Resonance Spectroscopy

Nuclear magnetic resonance spectroscopy (NMR) is an information-dense analytical technique used for characterizing materials by quantifying and determining molecular structure. A standing challenge is current NMR methodology is primarily limited to single sample measurements under low-throughput conditions. There is therefore a disconnect between applications requiring screening of large parameter spaces, and the desire to take [..]

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Holographic Algorithms

Researchers have devised and implemented a simplified algorithm for turning freely drawn lines into holograms on a standard desktop CPU. They dramatically cut down the computational cost and power consumption of holographic algorithms that require dedicated hardware. It is fast enough to convert writing into lines in real-time, and makes crisp, clear images that meet [..]

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Electrides Investigation - Microscopy

A team of researchers has used a new Scanning Transmission Electron Microscope (STEM) technique to image the electron distribution in ionic compounds known as electrides — especially the electrons that float loosely within pockets and appear separate from the atomic network. The new technique, Differential Phase Contrast (DPC) in STEM, measures and maps electric fields [..]

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Thermal Maps With Drone-Mounted IR Cameras For Energy Efficiency

Researchers at UMass Lowell are working on a pilot project they say will help the university identify and prioritize cost-saving repairs and energy-efficiency projects on campus. Drones equipped with infrared cameras can be used to create thermal maps that show where buildings or underground steam pipes are losing heat and costing organizations money and that [..]

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Borophane - New Building Block For Optoelectronics

The world of 2D material science is an exciting one where new advances continue to open up new possibilities, most notably through adaptations of the wonder material graphene. Scientists have introduced a new player to this game in the form of an ultra-thin, ultra-strong material they’ve dubbed borophane, which they see one day finding use [..]

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Phase Change Material For Optical Biosensors

Biosensors are usually designed following a three-step process: recognition of biomolecules, triggering of signal, and detection (e.g. using phase change material properties). Recognizing the biomolecules is the first and very important step in designing a biosensor system. Biosensors are useful for applications in environmental analysis and agricultural management, particularly in the detection of infectious diseases [..]

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Laser Interaction Observation

One significant way in which laser precision could be improved is if there was a better means to obtain feedback on the way the laser interacts (laser interaction) with a material. That way, there would be greater control and less uncertainty in the cutting and etching actions of a production laser. This problem has proven [..]

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Semiconductor Compound For Night Vision Devices

Researchers have discovered that the chemical compound Ca3SiO is a direct transition semiconductor, making it a potentially promising infrared LED and infrared detector component. This semiconductor compound–composed of calcium, silicon, and oxygen–is cheap to produce and non-toxic. Many of the existing infrared semiconductors contain toxic chemical elements, such as cadmium and tellurium. Ca3SiO may be [..]

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Fatty Liver Disease Diagnosis with Hyperspectral Imaging

Excessive fat accumulation in the liver can lead to serious medical problems, including liver failure. Thus, understanding the distribution of lipids within the liver is a critical step in diagnosing fatty liver diseases. A team of researchers has now shown that near-infrared hyperspectral imaging permits the visualization of lipid content in mouse liver. This technique [..]

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