scholarly journals Synthesis, structure and electrochemical characterization of an isopolytungstate (W4O16) held by MnII anchors within a superlacunary crown heteropolyanion {P8W48}

2019 ◽  
Vol 48 (41) ◽  
pp. 15545-15552 ◽  
Author(s):  
Masooma Ibrahim ◽  
Israël M. Mbomekallé ◽  
Pedro de Oliveira ◽  
George E. Kostakis ◽  
Christopher E. Anson
Keyword(s):  
Electrochemical Characterization ◽  
Redox Active

The first example of an isopolyanion (W4O16) held by redox-active MnII anchors within an archetypal superlacunary heteropolyanion {P8W48}.

scholarly journals Enzymatic synthesis and electrochemical characterization of sodium 1,2-naphthoquinone-4-sulfonate-doped PEDOT/MWCNT composite

RSC Advances ◽  
2020 ◽  
Vol 10 (55) ◽  
pp. 33010-33017
Author(s):  
Irina S. Vasil'eva ◽  
Galina P. Shumakovich ◽  
Maria E. Khlupova ◽  
Roman B. Vasiliev ◽  
Viktor V. Emets ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Enzymatic Synthesis ◽  
Electrochemical Characterization ◽  
Cyclic Stability ◽  
Redox Active

The use of redox active NSQ as a dopant of PEDOT dramatically increases the specific capacitance and cyclic stability of enzymatically synthesized PEDOT–NSQ/MWCNT composite.

scholarly journals In vitro electrochemical characterization of polydopamine melanin as a tissue stimulating electrode material

2016 ◽  
Vol 4 (18) ◽  
pp. 3031-3036 ◽  
Author(s):  
Ik Soo Kwon ◽  
Young Jo Kim ◽  
Luke Klosterman ◽  
Mats Forssell ◽  
Gary K. Fedder ◽  
...  
Keyword(s):  
Electrode Material ◽  
Electrochemical Characterization ◽  
Coating Material ◽  
Redox Active

The properties of redox active polydopamine melanin (PDM) films as a coating material for tissue stimulation electrodes were evaluated.

scholarly journals Microbial Biofilm Voltammetry: Direct Electrochemical Characterization of Catalytic Electrode-Attached Biofilms

2008 ◽  
Vol 74 (23) ◽  
pp. 7329-7337 ◽  
Author(s):  
Enrico Marsili ◽  
Janet B. Rollefson ◽  
Daniel B. Baron ◽  
Raymond M. Hozalski ◽  
Daniel R. Bond
Keyword(s):  
Electron Transfer ◽  
Quantitative Methods ◽  
Electrochemical Impedance ◽  
Active Species ◽  
Electrochemical Characterization ◽  
Geobacter Sulfurreducens ◽  
Bacterial Cells ◽  
Redox Active

ABSTRACT While electrochemical characterization of enzymes immobilized on electrodes has become common, there is still a need for reliable quantitative methods for study of electron transfer between living cells and conductive surfaces. This work describes growth of thin (<20 μm) Geobacter sulfurreducens biofilms on polished glassy carbon electrodes, using stirred three-electrode anaerobic bioreactors controlled by potentiostats and nondestructive voltammetry techniques for characterization of viable biofilms. Routine in vivo analysis of electron transfer between bacterial cells and electrodes was performed, providing insight into the main redox-active species participating in electron transfer to electrodes. At low scan rates, cyclic voltammetry revealed catalytic electron transfer between cells and the electrode, similar to what has been observed for pure enzymes attached to electrodes under continuous turnover conditions. Differential pulse voltammetry and electrochemical impedance spectroscopy also revealed features that were consistent with electron transfer being mediated by an adsorbed catalyst. Multiple redox-active species were detected, revealing complexity at the outer surfaces of this bacterium. These techniques provide the basis for cataloging quantifiable, defined electron transfer phenotypes as a function of potential, electrode material, growth phase, and culture conditions and provide a framework for comparisons with other species or communities.

Synthesis and electrochemical characterization of polyurethane with fixed redox-active units in hard segments

2003 ◽  
Vol 87 (10) ◽  
pp. 1555-1561
Author(s):  
Suolong Ni ◽  
Qundong Shen ◽  
Haisheng Xu ◽  
Junjie Zhu ◽  
Changzheng Yang
Keyword(s):  
Electrochemical Characterization ◽  
Redox Active ◽  
Hard Segments
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