Table of Contents
Introduction to Transport Phenomena
Diffusion in a gradient
The flux is proportional to the concentration gradient
Related transport properties
Fick’s first law
The diffusion equation
The diffusion equation
The diffusion equation
The diffusion equation
Diffusive spreading
Relationship between diffusion and osmosis
Diffusion of solvent realizes osmotic force
The chemical potential
Van’t Hoff equilibrium
The van’t Hoff equation
Osmotic pressure
Donnan equilibrium
Donnan equilibrium
Donnan equilibrium
Donnan equilibrium
Donnan equilibrium
Donnan equilibrium
Donnan equilibrium
Stationary states of membranes
Irreversible terms give rise to forces across membranes
The fundamental equation of membrane permeation
Significance
Diffusion in Polymers
Proteins show a glassy state
The iron in heme is the binding site for oxygen and other diatomics
A photolysis experiment
Ligand recombination is a sum of single exponential processes at room temperature
The heme iron center moves out of the heme plane and the porphyrin macrocycle domes upon deligation of CO
The structure of the globin changes upon deligation of carbonmonoxide
Ligand rebinding is highly non-exponential below Tg
Limiting cases for kinetics
Significance
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