Researchers Discover New Physics Using Ultrasound Waves on Liquid Droplets

Researchers from Binghamton University, North Carolina State University, Harvard Medical School, and Duke University have discovered a new physics phenomenon that allows them to create spin in liquid droplets using ultrasound waves. This manipulation of solid particles suspended in the liquid opens up possibilities for technologies in fields like biomedical testing and drug development.

Assistant Professor Yuyang Gu from Binghamton's Thomas J. Watson College of Engineering and Applied Science described the discovery as groundbreaking, highlighting that it is a unique finding in the field. The research, published in the journal Science Advances, was a collaborative effort with researchers from NCSU, Duke University, and Harvard Medical School.

The study revealed that ultrasound waves on a piezoelectric substrate can induce spin in a liquid droplet placed on the substrate. This spinning motion can be used to concentrate microparticles or nanoparticles at a central point within the droplet, enabling 3D manipulation of particles. This technique shows promise for sorting biological samples and concentrating cells or vesicles for testing.

Gu and his team are now focused on further understanding the mechanism behind this droplet-spinning phenomenon. By manipulating factors like surface tension, droplet radius, and ultrasound wave parameters, they can control the rotation of the system and the behavior of particles. The researchers aim to expand the application of this technique, potentially creating a droplet array for practical biomedical sensing applications.

The study not only has implications for biomedical technologies but also offers insights into the physics of rotating systems. Gu sees parallels between the droplet spinning and natural phenomena or microscopic processes, suggesting potential applications in exploring quantum physics concepts.

Looking ahead, the team plans to explore larger and smaller droplets, investigate the impact of different parameters on the system, and enhance the technique's practical applications. By building a droplet array with multiple spinning droplets, they aim to increase the throughput and efficiency of the technology.

According to the source: Mirage News.