Electron transfer of horse spleen ferritin at gold electrodes modified by self-assembled monolayers

Martin, Todd D.; Monheit, Scott A.; Niichel, Robert J.; Peterson, Susan C.; Campbell, Corinne H.; Zapien, Donald C.

doi:10.1016/s0022-0728(96)04790-0

Cited by 58 publications

(48 citation statements)

References 38 publications

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“…This is made possible by the fact that both types of nanoparticle readily adsorb onto tin-doped indium oxide (ITO) electrode surfaces. The adsorption of protein-coated HFO (ferritin) on ITO has been reported previously by Zapiens and coworkers [7,8,9,10]. So far as we are aware, however, the adsorption of bare HFO on ITO is new.…”

Section: Horse Spleen Ferritinmentioning

confidence: 80%

The direct electrochemistry of ferritin compared with the direct electrochemistry of nanoparticulate hydrous ferric oxide

et al. 2002

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Section: Horse Spleen Ferritinmentioning

confidence: 80%

The direct electrochemistry of ferritin compared with the direct electrochemistry of nanoparticulate hydrous ferric oxide

et al. 2002

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“…146 Ferritins are remarkably stable particles, withstanding 70 uC and tolerating a pH range between 2 and 10. 156 Several studies have demonstrated that ferritin can be used as a nanoreactor for the formation of inorganic nanocrystals. 157,158 Self-assembly of ferritin on a solid surface or liquid-air interface can afford well-defined 2D structures.…”

Section: 146mentioning

confidence: 99%

“…130,132,133,159 Furthermore, it is possible to detect the direct electron transfer from ferritin to gold electrodes. 156,160 As shown in Fig. 24, the exterior surface of HSF can be chemically modified with a variety of functionalities similar to CPMV.…”

Section: 146mentioning

confidence: 99%

Self-assembly of nanoparticles at interfaces

et al. 2007

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Developments in the assembly of nanoparticles at liquid-liquid interfaces are reviewed where the assemblies can be controlled by tuning the size of the nanoparticles and the chemical characteristics of the ligands. Both synthetic and biological nanoparticles are discussed. By controlling the type of ligands, uniform and Janus-type nanoparticles can be produced where, at liquid-liquid interfaces, subsequent reactions of the ligands can be used to generate crosslinked sheets of nanoparticles at the interface that have applications including novel encapsulants, filtration devices with well-defined porosities, and controlled release materials. By controlling the size and volume fraction of the nanoparticles and the chemical nature of the ligands, nanoparticle-polymer composites can be generated where either enthalpy or entropy can be used to control the spatial distribution of the nanoparticles, thereby, producing auto-responsive materials that self-heal, self-corral assemblies of nanoparticles, or self-direct morphologies. Such systems hold great promise for generating novel optical, acoustic, electronic and magnetic materials.

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“…However, great progress has been made in the research of direct electron transfer of proteins in recent years [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Direct Reduction of Oxyhemoglobin on a Bare Glassy Carbon Electrode

et al. 1998

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Irreversible electrochemical reduction of oxyhemoglobin (HbO 2 ) has been observed on a bare glassy carbon electrode (GCE) in acetate buffer solution. It is the bonded oxygen of HbO 2 , not the heme iron in hemoglobin that reacts electrochemically on the electrode. The peak current was a maximum value in acetate buffer solution at pH 5.0. The peak potential was pH dependent, which suggests that protons are involved in the electrochemical reaction. A possible reaction mechanism is proposed as: HbO 2 + 2H + + 2e → Hb + H 2 O 2 . Surfactants such as hexadecyltrimethylammonium bromide can promote the electrochemical reduction of HbO 2 and 0.09 % (w/w) was the optimum concentration of surfactant for the current response. Moreover, the peak current was linearly proportional to the concentration of HbO 2 in the range from 5 × 10 ¹8 to 1.5 × 10 ¹7 mol/L. The detection limit was 10 ¹8 mol/L. This method can be used for the determination of oxyhemoglobin in samples.

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Electron transfer of horse spleen ferritin at gold electrodes modified by self-assembled monolayers

Cited by 58 publications

References 38 publications

The direct electrochemistry of ferritin compared with the direct electrochemistry of nanoparticulate hydrous ferric oxide

The direct electrochemistry of ferritin compared with the direct electrochemistry of nanoparticulate hydrous ferric oxide

Self-assembly of nanoparticles at interfaces

Direct Reduction of Oxyhemoglobin on a Bare Glassy Carbon Electrode

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