Abstract
How many times can a diffusing molecule permeate across a membrane or be adsorbed on a substrate? We employ an encounter-based approach to find the statistics of adsorption or permeation events for molecular diffusion in a general confining medium. Various features of these statistics are illustrated for two practically relevant cases: a flat boundary and a spherical confinement. Some applications of these fundamental results are discussed.
| Original language | English |
|---|---|
| Article number | 5012 |
| Journal | Molecules |
| Volume | 29 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 1 Nov 2024 |
Keywords
- Brownian motion
- biochemistry
- confinement
- diffusion
- encounter-based approach
- geometric complexity
- heterogeneous catalysis
- permeation
- reversible reactions
- surface reaction