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Manipulating large numbers of a variety of particles/wires is essential for many lab-on-a-chip technologies. Here we generate a planar array of optofluidic vortices with photothermal gradients from an ...

A new laser based on a swirling vortex of light has been created by physicists in the US. The “topological-defect laser” could be a useful addition to lab-on-a-chip devices, where it could manipulate ...

Vortex flow: still from a simulation video showing how air from a sneeze can envelope a face shield. (Courtesy: Fujio Akagi/Isao Haraga/Shin-ichi Inage/Kozaburo Akiyoshi) Vortex rings created when a ...

Researchers have devised a method for producing toroid-shaped particles through a process called vortex ring freezing. The particles are mass produceable through inexpensive electrospraying. Some of ...

Some of the world's most important discoveries - penicillin, vulcanized rubber and Velcro, to name a few - were made by accident. In fact, it's been said that upward of half of all scientific ...