What are the Challenges in Studying Fickian Diffusion at the Nanoscale?
Studying Fickian diffusion at the nanoscale presents several challenges:
1. Measurement Techniques: Accurate measurement of diffusion coefficients at the nanoscale can be difficult due to limitations in experimental techniques and equipment. 2. Complex Interactions: Nanoparticles often exhibit complex interactions with their environment, making it challenging to isolate and study diffusion processes. 3. Heterogeneity: Nanoscale systems can be highly heterogeneous, with variations in particle size, shape, and surface properties, adding complexity to diffusion studies.