Figure 7
From: Fluorescence modulation sensing of positively and negatively charged proteins on lipid bilayers
Fluorescence intensity measurements before and after the addition of streptavidin to buffers at pH 7.3 and 5.9. Both buffers contained 10 mM PBS and 150 mM NaCl. Each point represents the average fluorescence intensity inside the microfluidic channels as a function of time.