title: Direct Electron Transfer of Hemoglobin on Manganese III Oxide-Ag Nanofibers Modified Glassy Carbon Electrode.
abstract: We investigated the electrochemical behavior of hemoglobin by glassy carbon electrode modified with Mn(2)O(3)-Ag nanofibers. The Mn(2)O(3)-Ag nanofibers were used as facilitator electron transfer between Hb and glassy-carbon-modified electrode. The Mn(2)O(3)-Ag nanofibers are studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The hemoglobin showed a quasireversible electrochemical redox behavior with a formal potential of -49 mV (versus Ag/AgCl) in 0.1 M potassium phosphate buffer solution at pH 7.0. The designed biosensor possesses good stability and reproducibility and achieves 95% of the steady-state current in less than five seconds.
authors.affiliation: Department of Biology, Payam-e-Noor University, Tehran 7371719578, Iran.
authors.forename: Masoud
authors.initials: M
authors.lastname: Negahdary
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Mazaheri
authors.forename: Somyyeh
authors.initials: S
authors.lastname: Rad
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Hadi
authors.forename: Roya
authors.initials: R
authors.lastname: Malekzadeh
authors.forename: Mohammad Mahdi
authors.initials: MM
authors.lastname: Saadatmand
authors.forename: Saeed
authors.initials: S
authors.lastname: Rezaei-Zarchi
authors.forename: Fariba
authors.initials: F
authors.lastname: Pishbin
authors.forename: Mojdeh
authors.initials: M
authors.lastname: Khosravian-Hemami