Comparison of the direct electrochemistry of myoglobin and hemoglobin films and their bioelectrocatalytic properties

Study on the combination of self-assembled electrochemical active films of hemoglobin and multilayered fibers

“…6B inset) coefficient of 0.992. The relative detection limit (3r) [58,59] was estimated to be 2.1Â10 À7 M.…”

Immobilization of Hemoglobin on the Gold Colloid Modified Pretreated Glassy Carbon Electrode for Preparing a Novel Hydrogen Peroxide Biosensor

“…This tells us that all the electroactive ferric hemoglobin [Hb Fe(III)] in the film is reduced to ferrous hemoglobin [Hb Fe(II)] on the positive potential to negative potentials and that the Hb Fe(II) produced is oxidized to Hb Fe(III) on the reverse [34]. According to Laviron's equation [35]: Previous reports showed that proteins, such as Hb, Mb, HRP, and cytochrome C which contained heme groups, could display electrochemical response to H 2 O 2 [25,26,36,37]. When H 2 O 2 was added to the PBS (pH 7.0), we can see an increase in reduction peak at about −0.20 V, which indicated that the immobilized Hb kept excellent electrocatalytic activity (Fig.…”

Synergistic effect of zirconium phosphate and Au nanoparticles on direct electron transfer of hemoglobin on glassy carbon electrode

“…As well known, proteins containing heme groups, such as horseradish peroxidase, hemoglobin, cytochrome c, and myoglobin, are able to electrocatalyze the reduction of H 2 O 2 [15,16,31,35]. To test the bioactivity of Hb immobilized on Au-ZrP , the CVs measurements were performed with H 2 O 2 as a model.…”