Several factors can affect the thermophoretic movement of nanoparticles:
1. Particle Size and Shape: Smaller particles experience thermophoresis differently compared to larger particles due to their higher surface-area-to-volume ratio. 2. Fluid Viscosity: The viscosity of the fluid medium can alter the mobility of nanoparticles, affecting the efficiency of thermophoresis. 3. Temperature Gradient: The strength and direction of the temperature gradient are critical in determining the movement and concentration of nanoparticles. 4. Intermolecular Forces: Van der Waals forces and other molecular interactions can influence the extent and nature of thermophoretic motion.
