Diffusion FRAP models corrected for photofading and immobile fraction and their compatibilities.

<p>In Binding Diffusion* (14), <i>c</i>_<i>k</i> represents the concentration of ligand receptor complex in the <i>k</i>th image, </p><p></p><p></p><p><mi>c</mi><mi>k</mi><mi>M</mi></p><p></p><p></p> is the mobile fraction of <i>c</i>, <i>β</i> is the immobile fraction, and <i>τ</i> is the time needed for each image scan. Finally, <i>g</i>₁ and <i>g</i>₂ are the bleaching functions for bounded (<i>c</i>) and free (<i>u</i>) proteins.<p>