//www.koonmotors.com/news/matter_energy/ultrasound/ Learn all about the nature of sound and ultrasonics. How does ultrasound work? What can be discovered through the use of ultrasound imaging? en-us Thu, 07 Sep 2023 22:51:16 EDT Thu, 07 Sep 2023 22:51:16 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/ultrasound/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230831121656.htm Optical-resolution photoacoustic microscopy is an up-and-coming biomedical imaging technique for studying a broad range of diseases, such as cancer, diabetes and stroke. But its insufficient sensitivity has been a longstanding obstacle for its wider application. Recently, a research team developed a multi-spectral, super-low-dose photoacoustic microscopy system with a significant improvement in the system sensitivity limit, enabling new biomedical applications and clinical translation in the future. Thu, 31 Aug 2023 12:16:56 EDT //www.koonmotors.com/releases/2023/08/230831121656.htm //www.koonmotors.com/releases/2023/07/230728170625.htm In hopes of improving the survival rate for breast cancer patients, researchers designed a wearable ultrasound device that could allow women to detect tumors when they are still in early stages. Fri, 28 Jul 2023 17:06:25 EDT //www.koonmotors.com/releases/2023/07/230728170625.htm //www.koonmotors.com/releases/2023/07/230726113102.htm Physicists have succeeded in making a new imaging technique ready for use on humans. Radioactive markers and radiation are not necessary for this. Wed, 26 Jul 2023 11:31:02 EDT //www.koonmotors.com/releases/2023/07/230726113102.htm //www.koonmotors.com/releases/2023/06/230627123112.htm Acoustic waves may be able to control how particles sort themselves. While researchers have been able to separate particles based on their shape -- for example, bacteria from other cells -- for years, the ability to control their movement has remained a largely unsolved problem, until now. Using ultrasound technology and a nozzle, researchers have separated, controlled and ejected different particles based on their shape and various properties. Tue, 27 Jun 2023 12:31:12 EDT //www.koonmotors.com/releases/2023/06/230627123112.htm //www.koonmotors.com/releases/2023/06/230622120857.htm Porous media such as concrete physically represent a spherical packing of different components -- in this case cement, rock and water. The mechanical properties of such mixtures are still difficult to calculate due to their discretized nature. A team has now been able to investigate an unexpected property of mixtures of granular media consisting of soft and stiff spherical particles. For this purpose, a combination of ultrasound investigations and X-ray computed tomographic imaging was employed, allowing a three-dimensional (3D) characterization and evaluation. The discovery could contribute to safer future building in earthquake zones. Thu, 22 Jun 2023 12:08:57 EDT //www.koonmotors.com/releases/2023/06/230622120857.htm //www.koonmotors.com/releases/2023/06/230615105324.htm To ensure that wounds remain tightly sealed in the abdomen after surgery, researchers have developed a patch with a sensor function. The polymer patch warns before the occurrence of dangerous leaks on sutures in the gastrointestinal tract take hold, while closes the areas on its own. A new material now enables a fast, easy and non-invasive leak diagnosis. Thu, 15 Jun 2023 10:53:24 EDT //www.koonmotors.com/releases/2023/06/230615105324.htm //www.koonmotors.com/releases/2023/06/230607004108.htm A simple sponge has improved how robots grasp, scientists have found. Wed, 07 Jun 2023 00:41:08 EDT //www.koonmotors.com/releases/2023/06/230607004108.htm //www.koonmotors.com/releases/2023/05/230522131300.htm Engineers have developed the first fully integrated wearable ultrasound system for deep-tissue monitoring, including for subjects on the go. Mon, 22 May 2023 13:13:00 EDT //www.koonmotors.com/releases/2023/05/230522131300.htm //www.koonmotors.com/releases/2023/05/230502201346.htm Engineers have developed a stretchable ultrasonic array capable of serial, non-invasive, three-dimensional imaging of tissues as deep as four centimeters below the surface of human skin, at a spatial resolution of 0.5 millimeters. This new method provides a non-invasive, longer-term alternative to current methods, with improved penetration depth. Tue, 02 May 2023 20:13:46 EDT //www.koonmotors.com/releases/2023/05/230502201346.htm //www.koonmotors.com/releases/2023/04/230404114214.htm According to some estimates, up to 80% of patients who experience a ruptured abdominal aortic aneurysm will die before they reach the hospital or during surgery. But early intervention can prevent rupture and improve outcomes. Researchers have now made a computational model of the cardiovascular system in order to predict early AAA rupture and monitor patients' blood vessel conditions. They mimicked specific health conditions and investigated various hemodynamic parameters using image-based computational blood dynamics. Tue, 04 Apr 2023 11:42:14 EDT //www.koonmotors.com/releases/2023/04/230404114214.htm //www.koonmotors.com/releases/2023/03/230310103414.htm A new ultrasound method that can measure the level of tension in human tissue -- a key indicator of disease -- has been developed. Fri, 10 Mar 2023 10:34:14 EST //www.koonmotors.com/releases/2023/03/230310103414.htm //www.koonmotors.com/releases/2023/03/230301162709.htm Haptic holography promises to bring virtual reality to life, but a new study reveals a surprising physical obstacle that will need to be overcome. Wed, 01 Mar 2023 16:27:09 EST //www.koonmotors.com/releases/2023/03/230301162709.htm //www.koonmotors.com/releases/2023/02/230228113810.htm A new device that calms overactive kidney nerves with ultrasound consistently lowered blood pressure in patients with uncontrolled hypertension, researchers have found. Tue, 28 Feb 2023 11:38:10 EST //www.koonmotors.com/releases/2023/02/230228113810.htm //www.koonmotors.com/releases/2023/02/230224135103.htm A research team presents technology that enhances photoacoustic computed tomography using a deep-learning approach. Fri, 24 Feb 2023 13:51:03 EST //www.koonmotors.com/releases/2023/02/230224135103.htm //www.koonmotors.com/releases/2023/02/230223193423.htm A team has developed a method for selectively manipulating genetically engineered cells with ultrasound. Thu, 23 Feb 2023 19:34:23 EST //www.koonmotors.com/releases/2023/02/230223193423.htm //www.koonmotors.com/releases/2023/02/230222115901.htm New research sheds light on how electric fields can be used to alter the thermal properties of ferroelectric materials, allowing engineers to manipulate the flow of heat through the materials. Ferroelectric materials are used in a wide variety of applications, from ultrasound devices to memory storage technologies. Wed, 22 Feb 2023 11:59:01 EST //www.koonmotors.com/releases/2023/02/230222115901.htm //www.koonmotors.com/releases/2023/02/230213120734.htm Scientists have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed. These results pave the way for novel 3D cell culture techniques with applications in biomedical engineering. Mon, 13 Feb 2023 12:07:34 EST //www.koonmotors.com/releases/2023/02/230213120734.htm //www.koonmotors.com/releases/2023/01/230131101843.htm New research found that using focused-ultrasound-mediated liquid biopsy in a mouse model released more tau proteins and another biomarker into the blood than without the intervention. This noninvasive method could facilitate diagnosis of neurodegenerative disorders, the researchers said. Tue, 31 Jan 2023 10:18:43 EST //www.koonmotors.com/releases/2023/01/230131101843.htm //www.koonmotors.com/releases/2023/01/230125121552.htm Engineers and physicians have developed a wearable ultrasound device that can assess both the structure and function of the human heart. The portable device, which is roughly the size of a postage stamp, can be worn for up to 24 hours and works even during strenuous exercise. Wed, 25 Jan 2023 12:15:52 EST //www.koonmotors.com/releases/2023/01/230125121552.htm //www.koonmotors.com/releases/2023/01/230113112749.htm Until now, microscopic robotic systems have had to make do without arms. Now researchers have developed an ultrasonically actuated glass needle that can be attached to a robotic arm. This lets them pump and mix minuscule amounts of liquid and trap particles. Fri, 13 Jan 2023 11:27:49 EST //www.koonmotors.com/releases/2023/01/230113112749.htm //www.koonmotors.com/releases/2023/01/230103133738.htm Radiation, used to treat half of all cancer patients, can be measured during treatment for the first time with precise 3D imaging. By capturing and amplifying tiny sound waves created when X-rays heat tissues in the body, medical professionals can map the radiation dose within the body, giving them new data to guide treatments in real time. It's a first-of-its-kind view of an interaction doctors have previously been unable to 'see.' Tue, 03 Jan 2023 13:37:38 EST //www.koonmotors.com/releases/2023/01/230103133738.htm //www.koonmotors.com/releases/2022/12/221229115650.htm 一个团队已经开发出一种深上优于超促进剂ound hologram generation framework' technology that can freely configure the form of focused ultrasound in real time based on holograms. It is expected to be used as a basic technology in the field of brain stimulation and treatment that requires precision in the future. Thu, 29 Dec 2022 11:56:50 EST //www.koonmotors.com/releases/2022/12/221229115650.htm //www.koonmotors.com/releases/2022/12/221201141918.htm Water that simply will not freeze, no matter how cold it gets -- a research group has discovered a quantum state that could be described in this way. Experts have managed to cool a special material to near absolute zero temperature. They found that a central property of atoms -- their alignment -- did not 'freeze', as usual, but remained in a 'liquid' state. The new quantum material could serve as a model system to develop novel, highly sensitive quantum sensors. Thu, 01 Dec 2022 14:19:18 EST //www.koonmotors.com/releases/2022/12/221201141918.htm //www.koonmotors.com/releases/2022/09/220921210007.htm Researchers have developed cutting-edge technology to diagnose patients with heart failure in record time. The state-of-the-art technology uses magnetic resonance imaging (MRI) to create detailed 4D flow images of the heart. But unlike a standard MRI scan, which can take up to 20 minutes or more, the new 4D heart MRI scan takes just eight minutes. Wed, 21 Sep 2022 21:00:07 EDT //www.koonmotors.com/releases/2022/09/220921210007.htm //www.koonmotors.com/releases/2022/08/220812134738.htm Researchers have discovered that they can control the stickiness of adhesive bandages using ultrasound waves and bubbles. This breakthrough could lead to new advances in medical adhesives, especially in cases where adhesives are difficult to apply such as on wet skin. Fri, 12 Aug 2022 13:47:38 EDT //www.koonmotors.com/releases/2022/08/220812134738.htm //www.koonmotors.com/releases/2022/08/220809141207.htm When racehorses enter training at about 2 years old, they can develop tiny stress fractures and new bone formations in their legs. This condition, called bucked shin, occurs in about 70% of the animals. Researchers have now developed a method to screen for bucked shin using ultrasound. Axial transmission, in which an ultrasound emitter and receiver are placed on the skin to induce and measure wave velocities, is frequently used to study osteoporosis in humans. The method could detect bucked shin more easily and preserve the health and growth of young horses. Tue, 09 Aug 2022 14:12:07 EDT //www.koonmotors.com/releases/2022/08/220809141207.htm //www.koonmotors.com/releases/2022/07/220728142925.htm Engineers designed an adhesive patch that produces ultrasound images of the body. The stamp-sized device sticks to skin and can provide continuous ultrasound imaging of internal organs for 48 hours. Thu, 28 Jul 2022 14:29:25 EDT //www.koonmotors.com/releases/2022/07/220728142925.htm //www.koonmotors.com/releases/2022/07/220721101535.htm Researchers have developed a new method for flexibly creating various needle-shaped laser beams. These long, narrow beams can be used to improve optical coherence tomography (OCT), a noninvasive and versatile imaging tool that is used for scientific research and various types of clinical diagnoses. Thu, 21 Jul 2022 10:15:35 EDT //www.koonmotors.com/releases/2022/07/220721101535.htm //www.koonmotors.com/releases/2022/06/220615102926.htm High-intensity focused ultrasound (HIFU) can help some men with prostate cancer avoid surgery or radiation. Wed, 15 Jun 2022 10:29:26 EDT //www.koonmotors.com/releases/2022/06/220615102926.htm //www.koonmotors.com/releases/2022/06/220615102920.htm Experts at the University of Bristol have discovered that the scales on moth wings act as excellent sound absorbers even when placed on an artificial surface. Wed, 15 Jun 2022 10:29:20 EDT //www.koonmotors.com/releases/2022/06/220615102920.htm //www.koonmotors.com/releases/2022/05/220531140131.htm Researchers describe a new platform technology called direct sound printing (DSP), which uses soundwaves to produce new objects. The paper explains show how focused ultrasound waves can be used to create sonochemical reactions in minuscule cavitation regions. Extremes of temperature and pressure lasting trillionths of a second can generate pre-designed complex geometries that cannot be made with existing techniques. Tue, 31 May 2022 14:01:31 EDT //www.koonmotors.com/releases/2022/05/220531140131.htm //www.koonmotors.com/releases/2022/05/220530120411.htm Researchers have developed an ultrasound-guided cancer immunotherapy platform that generates systemic antitumor immunity and improves the therapeutic efficacy of immune checkpoint blockade. Mon, 30 May 2022 12:04:11 EDT //www.koonmotors.com/releases/2022/05/220530120411.htm //www.koonmotors.com/releases/2022/05/220505085633.htm Until now, the best way of diagnosing heart failure has been an invasive assessment, but it carries risks for patients. Non-invasive echocardiogram, which is based on ultrasound, are usually used instead, but they are wrong in up to 50 per cent of cases. The new study shows how magnetic resonance imaging (MRI) is superior to echocardiography for diagnosing heart failure, as well as being a powerful tool to predict patient outcomes, including death. Thu, 05 May 2022 08:56:33 EDT //www.koonmotors.com/releases/2022/05/220505085633.htm //www.koonmotors.com/releases/2022/04/220427100511.htm A research team has developed a bimodal photoacoustic/ ultrasound imaging technology for the human foot. Wed, 27 Apr 2022 10:05:11 EDT //www.koonmotors.com/releases/2022/04/220427100511.htm //www.koonmotors.com/releases/2022/04/220418093955.htm Noninvasive sound technology breaks down liver tumors in rats, kills cancer cells and spurs the immune system to prevent further spread -- an advance that could lead to improved cancer outcomes in humans. Mon, 18 Apr 2022 09:39:55 EDT //www.koonmotors.com/releases/2022/04/220418093955.htm //www.koonmotors.com/releases/2022/04/220412095402.htm While there are no successful non-invasive therapeutics currently available for the treatment of vision loss, researchers at have come up with a new idea to address this growing problem. Currently, ophthalmologists use electronic technology to directly stimulate retinal neurons by implanting electrode devices inside the eye, a technique that requires expensive and invasive surgery. A research team is now exploring a non-surgical solution that could restore sight by using another of the five senses: Sound. Tue, 12 Apr 2022 09:54:02 EDT //www.koonmotors.com/releases/2022/04/220412095402.htm //www.koonmotors.com/releases/2022/04/220404120522.htm A new endoscope design that combines ultrasound with optical coherence tomography can assess the structural features of the endometrium with unprecedented detail. This dual-mode endoscope could help doctors diagnose infertility problems that are related to endometrial receptivity with greater accuracy than current imaging technologies. Mon, 04 Apr 2022 12:05:22 EDT //www.koonmotors.com/releases/2022/04/220404120522.htm //www.koonmotors.com/releases/2022/03/220323101229.htm Engineers have developed a device that is a first step to enabling noninvasive, ultrasound-based therapies for the brain. For example, ultrasound waves are currently being used in clinical trials to treat epilepsy. Wed, 23 Mar 2022 10:12:29 EDT //www.koonmotors.com/releases/2022/03/220323101229.htm //www.koonmotors.com/releases/2022/03/220322130028.htm To accurately diagnose and treat diseases, doctors and researchers need to see inside bodies. Medical imaging tools have come a long way since the humble x-ray, but most existing tools remain too coarse to quantify numbers or specific types of cells inside deep tissues of the body. Quantum dots can do that, according to new research in mice. Tue, 22 Mar 2022 13:00:28 EDT //www.koonmotors.com/releases/2022/03/220322130028.htm //www.koonmotors.com/releases/2022/03/220311095306.htm Scientists have now found answers to central questions which had previously stood in the way of acoustic propulsion of nanoparticles. Fri, 11 Mar 2022 09:53:06 EST //www.koonmotors.com/releases/2022/03/220311095306.htm //www.koonmotors.com/releases/2022/02/220228184019.htm An ultrasound scan can be used to detect cases of prostate cancer, according to new research. Mon, 28 Feb 2022 18:40:19 EST //www.koonmotors.com/releases/2022/02/220228184019.htm //www.koonmotors.com/releases/2022/02/220225142118.htm The world's abalone are threatened, endangered or otherwise vulnerable in nearly every corner of the planet. If only we could wave a magic wand to know when abalone are ready to reproduce, without even touching them. Scientists have now found that wand -- although it isn't magic, and it only looks like a wand. It's an ultrasound transducer, and it can be used to quickly and noninvasively detect when abalone are ready to spawn, they report in a study this week. Fri, 25 Feb 2022 14:21:18 EST //www.koonmotors.com/releases/2022/02/220225142118.htm //www.koonmotors.com/releases/2022/02/220224161549.htm Ultrasound scans -- best known for monitoring pregnancies or imaging organs -- can also be used to stimulate cells and direct cell function. A team of researchers has developed an easier, more effective way to harness the technology for biomedical applications. Thu, 24 Feb 2022 16:15:49 EST //www.koonmotors.com/releases/2022/02/220224161549.htm //www.koonmotors.com/releases/2022/02/220222125057.htm Medical researchers have developed a method for producing a low-cost, easy-to-use focused ultrasound device that can help open up the blood-brain barrier for non-invasive procedures and diagnostics. Tue, 22 Feb 2022 12:50:57 EST //www.koonmotors.com/releases/2022/02/220222125057.htm //www.koonmotors.com/releases/2022/02/220215092516.htm Researchers have devised a revolutionary new technique for measuring the microscopic elasticity of materials. Known as SRAS, the technology works by measuring the speed of sound across the material's surface. Tue, 15 Feb 2022 09:25:16 EST //www.koonmotors.com/releases/2022/02/220215092516.htm //www.koonmotors.com/releases/2022/01/220125112527.htm A technique that uses ultrasound images to determine the depth and shape of the hip socket can accurately predict which infants with hip dysplasia will develop normal hip structure and which remain dysplastic, according to a new study. Researchers said statistical shape modeling improves on existing techniques and could spare many infants from unnecessary treatment. Tue, 25 Jan 2022 11:25:27 EST //www.koonmotors.com/releases/2022/01/220125112527.htm //www.koonmotors.com/releases/2022/01/220105111351.htm Researchers have designed and simulated the first topological acoustic transistors -- with sound waves instead of electrons -- and proposed a connection architecture to form a universal logic gate that can switch the flow of sound on and off. Wed, 05 Jan 2022 11:13:51 EST //www.koonmotors.com/releases/2022/01/220105111351.htm //www.koonmotors.com/releases/2021/12/211217102748.htm A new study has shown how the brain gives credit to events, along with how transcranial ultrasound (TUS) can disrupt this process. While currently developed in an animal model, this line of research and the use of TUS could one day be applied to clinical research to tackle conditions such as addiction. Fri, 17 Dec 2021 10:27:48 EST //www.koonmotors.com/releases/2021/12/211217102748.htm //www.koonmotors.com/releases/2021/12/211208085956.htm Sonodynamic therapy uses ultrasound in combination with drugs to release harmful reactive oxygen species (ROS) at the site of a tumor. However, the treatment isn't very effective because cancer cells can activate antioxidant defense systems to counteract it. Now, researchers have breached these defenses with CRISPR/Cas9 gene editing, allowing sonodynamic therapy to effectively shrink tumors in a mouse model of liver cancer. Wed, 08 Dec 2021 08:59:56 EST //www.koonmotors.com/releases/2021/12/211208085956.htm //www.koonmotors.com/releases/2021/11/211110145324.htm 研究人员已经开发出的一种新方法robotic exosuit assistance can be calibrated to an individual and adapt to a variety of real-world walking tasks in a matter of seconds. The bioinspired system uses ultrasound measurements of muscle dynamics to develop a personalized and activity-specific assistance profile for users of the exosuit. Wed, 10 Nov 2021 14:53:24 EST //www.koonmotors.com/releases/2021/11/211110145324.htm //www.koonmotors.com/releases/2021/11/211101105402.htm Investigators have developed and tested a targeted contrast agent that can detect blood clots in the hearts of patients with atrial fibrillation, or an irregular heartbeat. The strategy could be used to find clots in other parts of the body as well, such as in vessels that, when blocked, can lead to stroke. Mon, 01 Nov 2021 10:54:02 EDT //www.koonmotors.com/releases/2021/11/211101105402.htm //www.koonmotors.com/releases/2021/09/210910172804.htm Researchers have devised an ingenious method of using acoustics to conceal and simulate objects. Fri, 10 Sep 2021 17:28:04 EDT //www.koonmotors.com/releases/2021/09/210910172804.htm //www.koonmotors.com/releases/2021/08/210824083437.htm While doctors have used low-intensity ultrasound as a medical imaging tool since the 1950s, experts are now using and extending models that help capture how high-intensity focused ultrasound (HIFU) can work on a cellular level. Tue, 24 Aug 2021 08:34:37 EDT //www.koonmotors.com/releases/2021/08/210824083437.htm //www.koonmotors.com/releases/2021/08/210817102742.htm Prediction models based on clinical characteristics and imaging findings may help reduce the false-positive rate in women with dense breasts who undergo supplemental breast cancer screening with MRI, according to a new study. Tue, 17 Aug 2021 10:27:42 EDT //www.koonmotors.com/releases/2021/08/210817102742.htm //www.koonmotors.com/releases/2021/08/210803121315.htm When we speak, we use our auditory and somatosensory systems to monitor the results of the movements of our tongue or lips. Since we cannot typically see our own faces and tongues while we speak, however, the potential role of visual feedback has remained less clear. Researchers explore how readily speakers will integrate visual information about their tongue movements during a speech motor learning task. Tue, 03 Aug 2021 12:13:15 EDT //www.koonmotors.com/releases/2021/08/210803121315.htm //www.koonmotors.com/releases/2021/07/210727145234.htm Researchers have demonstrated a low-cost technique for retrieving nanowires from electronic devices that have reached the end of their utility and then using those nanowires in new devices. The work is a step toward more sustainable electronics. Tue, 27 Jul 2021 14:52:34 EDT //www.koonmotors.com/releases/2021/07/210727145234.htm //www.koonmotors.com/releases/2021/07/210722145217.htm Engineers developed a soft, stretchy ultrasound patch that can be worn on the skin to monitor blood flow through vessels deep inside the body. Such a device can make it easier to detect cardiovascular problems, like blockages in the arteries that could lead to strokes or heart attacks. Thu, 22 Jul 2021 14:52:17 EDT //www.koonmotors.com/releases/2021/07/210722145217.htm //www.koonmotors.com/releases/2021/07/210712150318.htm Researchers have found that the magnetic field of the MRI scanner decreased the BBB opening volume by 3.3-fold to 11.7-fold, depending on the strength of the magnetic field, in a mouse model. Mon, 12 Jul 2021 15:03:18 EDT //www.koonmotors.com/releases/2021/07/210712150318.htm //www.koonmotors.com/releases/2021/06/210621104242.htm Scientists have used a compound made from a starch derivative and baking soda to help convert mechanical to electrical energy. The approach is cost-effective and biocompatible, and can help charge low-energy electronics like calculators and watches. Mon, 21 Jun 2021 10:42:42 EDT //www.koonmotors.com/releases/2021/06/210621104242.htm //www.koonmotors.com/releases/2021/05/210528150507.htm A team has developed a new brain stimulation technique using focused ultrasound that is able to turn specific types of neurons in the brain on and off and precisely control motor activity without surgical device implantation. Fri, 28 May 2021 15:05:07 EDT //www.koonmotors.com/releases/2021/05/210528150507.htm