Revolutionary phenomenon in liquid crystals

A research team, affiliated with UNIST, has unveiled for the first time a new principle of motion in the microworld, where objects can move in a directed manner simply by changing their sizes periodically within a substance known as liquid crystal.

The key to this phenomenon lies in the creation of phase defects within the liquid crystal structure next to the air bubbles. These defects disrupt the symmetrical nature of the bubbles, enabling them to experience a unidirectional force despite their symmetrical shape. As the air bubbles fluctuate in size, pushing and pulling the surrounding liquid crystal, they are propelled in a consistent direction, defying conventional laws of physics.

Professor Jeong commented,"This intriguing result underscores the significance of symmetry breaking in both time and space in driving motion at the microscopic level. Moreover, it holds promise for advancing research in the development of microscopic robots."Scientists have long strived to develop artificial molecular motors that can convert energy into directed motion. Researchers have now presented a solution to a challenging problem: how motion can be ...

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