Both ultrasound for medical imaging and seismology for imaging the Earth's interior measure the propagation of waves through matter. For example, when seismic waves encounter material differences in the Earth's interior, ...
General Physics
Jul 26, 2022
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45
Scientists from the Graduate School of Systems and Information Engineering at the University of Tsukuba created a theoretical model for describing the motion of ultrasound waves in the presence of multiple bubbles. This work ...
General Physics
Jul 11, 2022
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5
Photoacoustic imaging generates ultrasound waves by irradiating biological tissues with pulses or modulated continuous lasers. Ultrasound sensors are used to capture ultrasound signals in a distributed manner. Then, the light ...
Optics & Photonics
Jun 30, 2022
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31
If mechanoluminescent materials are subjected to external mechanical stress, they emit visible or invisible light. Such excitation can occur due to bending or gentle pressure, for example, but also completely contact-free ...
Condensed Matter
Jun 17, 2022
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78
A novel theory of cross phenomena could be applied to predict whether a new material would be effective for use in various applications from improved medical ultrasounds to more efficient refrigerators, according to a Penn ...
Materials Science
May 9, 2022
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45
A team of researchers working at China's Fourth Hospital of Harbin Medical University has developed a new kind of male contraceptive that is easily reversed. In their paper published in the journal ACS Nano, the group describes ...
Microscopically tiny nanomachines which move like submarines with their own propulsion—for example in the human body, where they transport active agents and release them at a target: What sounds like science fiction has, ...
Nanophysics
Mar 11, 2022
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130
The world's abalone are threatened, endangered or otherwise vulnerable in nearly every corner of the planet. While captive breeding efforts are underway for some species, these giant sea snails are notoriously difficult to ...
Plants & Animals
Feb 25, 2022
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27
Ultrasound scans, best known for monitoring pregnancies or imaging organs, can also be used to stimulate cells and direct cell function. A team of Penn State researchers has developed an easier, more effective way to harness ...
Analytical Chemistry
Feb 24, 2022
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80
Medical imaging techniques provide a unique view inside the body and are invaluable for diagnosis and disease monitoring. From X-ray, over MRI to ultrasound, the field is vast and diverse. When imaging biological tissue, ...
Optics & Photonics
Feb 17, 2022
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