The liquid sheets - less than 100 water molecules thick - will let researchers probe chemical, physical and biological processes, and even the nature of water itself, in a way they could never do before.
The untethered biohybrid microswimmer is able to transport and deliver cargo encapsulated into a guidable red blood cell, while an attached bacterium, one of the most efficient swimmers in nature, acts as a propeller to move it forward. Once it has reached its destination and delivered its cargo, the scientists can destroy the microswimmer using infrared light.
Although helical structures are typically formed by magnetic moments that wind around an axis in a set direction, researchers discovered that Fe3PO7 does not pick a particular direction and allows only short-range helical structures to form. These structures may provide novel technological capabilities.
Using nanoparticles to bind molecules that can unleash and stimulate immune cells, researchers found they could more effectively trigger the body's defenses system against cancer in laboratory studies.