Microplastics (MPs), defined as plastic fragments with sizes ranging from millimeters (<5 mm) to nanometers, have become a growing environmental and public health concern. First identified in the ...

In a new study, Northwestern engineers discovered that groups of tiny particles suspended in liquid oscillate together, keeping time as though they somehow sense one another's motion. The team used a ...

A pioneering method to simulate how microscopic particles move through the air could boost efforts to combat air pollution, a study suggests. A pioneering method to simulate how microscopic particles ...

Scientists have observed a unique particle that moves easily one way, yet resists at 90 degrees. These semi-Dirac fermions were observed using their energy signature in a topological metal. Particles ...