Th 2-[4-(2-hydroxyethyl)piperazin-1-yl] ethanesulfonic acid (HEPES)-buffered saline
Th 2- ethanesulfonic acid (HEPES)-buffered saline (HBS, 20 mM HEPES, 160 mM NaCl, pH 7.four) to receive TFlow or TFhigh surface concentrations. Nominal low and high TF surface concentrations (wall)…