Articles tagged with Ultrasonic Waves
High-intensity focused ultrasound waves can penetrate biological tissue and trigger chemical reactions on demand. The technology, developed by an interdisciplinary team, addresses challenges of noninvasive access to deep tissue for therapeutic purposes.
North Carolina State University researchers have created a technique called ultrasound-assisted biofabrication (UAB) to align living cells during the bioprinting process. This allows for the creation of tissues with characteristics similar to natural tissues, such as a knee meniscus with aligned cell structures.
Haiying Huang, a UTA professor, has received $900k grants to monitor ship structural health and detect early material degradation. Her research focuses on using optical fibers as waveguides for lightweight, effective, and easy-to-maintain sensor networks.
Researchers developed a laser-driven photoacoustic microfluidic pump that moves fluids in any direction without mechanical parts or electrical contacts. The device uses a plasmonic quartz plate implanted with gold atoms to generate an ultrasonic wave, driving the fluid via acoustic streaming.
Researchers at Bar-Ilan University have successfully mapped liquids outside coated optical fibers, enabling sensing applications beyond the lab. The use of a polyimide coating overcomes the protective barrier previously hindering sensor performance.
New insight into opto-mechanics of optical fibers can be applied to sensor systems with longer reach, higher spatial resolution, and better precision.
Researchers at Toyohashi University of Technology have discovered a new ultrasonic wave phenomenon that enables precise and nondestructive detection of fatigue and early damage in thin plate materials. This technology surpasses conventional methods, allowing for accurate evaluation of material damage even before it occurs.
Exposure to ultrasonic sound waves may cause adverse health effects such as nausea, dizziness, and ringing ears. A growing body of evidence suggests that public safety guidelines are based on inadequate data from studies performed decades ago.
UNC researchers discovered that high-intensity shear shock waves amplify deep inside the brain, delivering a tenfold increase in tissue-ripping acceleration. This phenomenon may explain why some head knocks cause more harm than others.
Researchers from PolyU develop nanocomposite sensors that can be sprayed on flat or curved surfaces, enabling real-time information on structural health. The sensors have a low fabrication cost, light weight, and higher frequency response than conventional sensors.
Researchers at Duke University and CalTech have developed a hybrid imaging technology that combines light and ultrasound to provide live, holistic views of small animal organs. This technique breaks the resolution and speed barriers in whole-body imaging, enabling functional imaging of entire bodies with sub-millimeter-level resolution.
Researchers found that bat ear movements can pack extra information into ultrasonic pulses, improving echolocation accuracy. Combining data from different configurations increased a sensor's ability to localize sound waves by a factor of 100 to 1000.
Researchers have developed a new method using ultrasound to measure fluid in the lungs, which could help diagnose scarring and fibrosis. The technique allows for quantitative information on lung fluid levels, potentially tracking treatment progress more effectively.
Researchers at the University of Rochester have developed a new beam pattern, dubbed the 'needle-pulse' beam, which can create incredibly thin and intense beams that expand outward again after a mere nanosecond. This innovation has the potential to revolutionize fields such as ultrasound, radar, and microscopy.
Researchers at TUM develop a new method for non-destructive testing using ultrasound that combines a computerized model and experiment to provide precise information on the inner world of objects. This method uses waveform inversion to utilize the entire information content of the wave field measured, providing improved results.
Sreekanth Chalasani's sonogenetics technique uses ultrasonic waves to selectively activate cells in mammals, opening doors to deep brain stimulation, pacemaker technology and more. The $1 million grant from the BRAIN Initiative could lead to breakthroughs in treating neurological disorders.
Salk scientists use ultrasonic waves to selectively activate brain, heart, muscle and other cells, offering an alternative to optogenetics for human therapeutics. The technique, dubbed sonogenetics, has the potential to noninvasively reach any tissue of interest in the body.
Researchers successfully demonstrated cream separation from natural whole milk at liter-scales using ultrasonic standing waves, achieving fractionation outcomes desired for a particular dairy product. The technique allows for high volume throughputs of up to 30 liters per hour and can be used to specifically select milk fat globules of...
Researchers have made a breakthrough in evaluating long bone fractures using ultrasound, providing a new method for monitoring healing. The study found that the amplitude of ultrasonic guided waves can quantify fracture degree and depth, offering a non-invasive diagnostic tool.
A team of researchers from China's State Key Lab of Mechanics and Control of Mechanical Structures introduced innovative strategies for ultrasonic manipulation by employing various acoustic streaming fields. This enables the diversification of manipulation functions and samples, widening the application range of the technique.
A pocket-size ultrasonic nebulizer employing a novel silicon-based nozzle has been developed to improve medication delivery efficiency in inhalers. The device achieves precise control of particle size and distribution, resulting in better efficacy and reduced side effects.
Aerospace engineers can now detect adhesive failures in hard-to-reach places more quickly and precisely using the right ultrasonic frequency. The selection process could save time and effort for engineers performing maintenance on complex composite materials.
University of Arizona researchers have discovered that ultrasound waves applied to specific areas of the brain can alter patients' moods. The study, led by Dr. Stuart Hameroff, found improvements in mood for up to 40 minutes following treatment with brain ultrasound, compared to no difference when the machine was switched off.
MIT engineers enhance skin permeability using ultrasound waves, enabling efficient transdermal drug delivery. The technology could pave the way for needle-free vaccinations and improve treatment of skin conditions like acne or psoriasis.
Researchers developed a new technique called Electromechanical Wave Imaging (EWI) that can map transient events and image the entire heart within a single beat. This allows for non-invasive diagnosis of non-periodic arrhythmias like atrial and ventricular fibrillation.
Researchers at University of Illinois successfully localized quantum matter waves in three dimensions, a phenomenon theorized decades ago. The findings have implications for various electronics applications and could lead to better understanding and manipulation of materials.
Researchers at Columbia Engineering School have developed a new, non-invasive technique called Electromechanical Wave Imaging (EWI) to map the electrical activation of the heart. This breakthrough method could help doctors treat arrhythmias more efficiently and precisely.
Researchers have developed a device that uses sound waves to detect bacteria in water, potentially speeding up the process by 15% compared to existing methods. The device broadcasts ultrasound waves into the liquid, exerting pressure on bacteria that pushes them into a collection pocket for identification.
Researchers developed a non-destructive way to measure the elasticity of human teeth using lasers, enabling early detection of oral health issues. The new method can help predict emerging dental problems like tooth decay and cavities.
A new 'Structural Health Monitoring' (SHM) system uses sensors and signal processing devices to detect cracks and defects in aircraft, pipelines, and wind turbines. The system aims to prevent damage and optimize maintenance with real-time data.
Researchers developed an ultrasonic metamaterial that captures sound wave's fine details and expands instead of compresses like natural materials. This allows for higher modulation of the acoustic wave, enabling better ultrasound image resolution.
The INEEL Laser Ultrasonic Camera transforms sound waves into an image, revealing object thickness, stiffness and imperfections. The system's dynamic holographic image shows waves moving along the surface of the entire object in real-time.
Researchers at Penn State are establishing a unique center for the development of ultrasonic transducer/array technology, improving diagnosis for medical conditions like cardiovascular disease and birth defects. The center will focus on developing high-frequency devices and using new materials to create better clinical images.
Researchers at Pacific Northwest National Laboratory have developed two portable detection systems that can identify strategic metals used to make nuclear weapons. The Material Identification System uses eddy current technology to detect metals, while the Ultrasonic Pulse Echo instrument uses ultrasound to characterize container contents.