How is Attitude Control Achieved at the Nanoscale?
Achieving attitude control at the nanoscale requires innovative approaches due to the unique challenges posed by nanostructures. Here are some methods used:
External Fields: Magnetic and electric fields can be employed to manipulate the orientation of nanoparticles. For instance, magnetic nanoparticles can be aligned using external magnetic fields. Surface Functionalization: By modifying the surface chemistry of nanoparticles, researchers can control their interactions with the environment, influencing their orientation and stability. Optical Tweezers: Laser beams can exert forces on nanoparticles, allowing precise control over their position and orientation. Microfluidics: Fluid flow in microfluidic channels can be used to align and orient nanoparticles, useful in applications like lab-on-a-chip devices.
