Health
Swimming upstream on sound waves – Science Daily
Scientists have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny vehicles are set to be introduced into the human…

At some point, microvehicles that are small enough to navigate our blood vessels will enable physicians to take biopsies, insert stents and deliver drugs with precision to sites that are difficult to reach, all from inside the body. Scientists around the world are currently researching and developing suitable microvehicles. In most cases, they are powered and controlled by acoustic and magnetic fields or using light. However, until now, propelling microvehicles against a fluid flow had proved to…
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