Direct Electrochemistry of Hemoglobin Molecules Adsorbed on Bare Indium Tin Oxide Electrode Surfaces
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概要
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The direct electrochemistry of hemoglobin (Hb) molecules adsorbed on bare indium tin oxide (ITO) electrodes was investigated by voltammetric methods. A pair of redox peak currents, which is attributed to a heme Fe(III)/Fe(II) couple in Hb molecules, was found at Hb-adsorbed ITO electrodes in phosphate-buffered saline (PBS; pH 7.4) solutions. Slab optical waveguide (SOWG) spectroscopy, which is one of the attenuated total reflection (ATR) techniques, was employed to observe the Soret band of Hb molecules adsorbed on the bare ITO electrode surfaces. The obtained spectra indicated that directly adsorbed Hb molecules were not significantly denatured on the bare ITO electrode surfaces.
- 2008-02-25
著者
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Matsuda Naoki
Measurement Solution Research Center Aist
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Ayato Yusuke
Measurement Solution Research Center National Institute Of Advanced Industrial Science And Technolog
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Ayato Yusuke
Measurement Solution Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Kyushu, 807-1 Shukumachi, Tosu, Saga 841-0052, Japan
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KATO Kenji
National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
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Takaktsu Akiko
National Metrology Institute of Japan, AIST, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
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