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We have studied the trans-membrane electron transfer in human red blood cells (RBCs) immobilized in a chitosan film on a glassy carbon electrode (GCE). Electron transfer results from the presence of hemoglobin (Hb) in the RBCs. The electron transfer rate (ks) of Hb in RBCs is 0.42 s−1, and <1.13 s−1 for Hb directly immobilized in the chitosan film. Only Hb molecules in RBCs that are closest to...
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