How Do Scientists Measure Viscous Drag in Nanotechnology?
Several techniques are used to measure viscous drag at the nanoscale:
Atomic Force Microscopy (AFM): AFM can measure the forces acting on nanoparticles as they move through a fluid. Optical Tweezers: This method uses a focused laser beam to trap and manipulate nanoparticles, allowing researchers to measure drag forces. Microfluidic Devices: These are small-scale devices that can simulate various flow conditions and help in studying the behavior of nanoparticles under different drag forces.
