Abstract
Shifts of pH near the bilayer lipid membrane (BLM) were measured in the absence of pH difference between bulk solutions by two methods, i.e. pH microelectrode and membrane potential recordings in the presence of a protonophore. A quantitative agreement of the results of both methods was obtained. The kinetics of the generation of potential induced by the addition of ammonium chloride was accounted for by the time of the diffusion through the unstirred layers. The thickness of the unstirred BLM layers was determined in the experiment.
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More From: Biochimica et Biophysica Acta (BBA) - Biomembranes
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