Scientists have shown that it is possible to create precise, predetermined patterns on surfaces from droplets or particles
“It has already been shown that the power of ultrasoundlifts small particles into the air. We’re thrilled to have significantly expanded the range of applications by creating patterns of dense clouds of material in the air at scale and the ability to algorithmically control how the material takes shape.”
Professor Mike Fraser from the Department of Computer Science at the University of Bath
Researchers believe that their work canrevolutionize printing by improving the speed, cost and accuracy of non-contact in-air printing techniques. Their work is already showing the potential of sonolithography for biotechnology.
Sonolithography allows you to gently, contactless andquickly create patterns of cells and biomaterials on surfaces. Tissue engineering can use biotechnology techniques to create specific structures from cells and materials. We are adding new techniques to the biotechnology toolbox.
"The objects we manipulate havesize of water droplets in clouds. It's incredibly exciting to be able to move such small objects with such precise control. This could allow us to target aerosol cans with unprecedented precision, for example to deliver drugs or heal wounds."
Professor Bruce Drinkwater, Professor of Ultrasound in the Department of Mechanical Engineering at Bristol
In addition to biomedical applications, the teamshowed that the method is applicable to a wide variety of materials. Printed electronics is another area the team is looking to develop, with sonolithography being used to place conductive ink in circuits and components.
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