Attaching high charge density metal ions to surfaces and biomolecules. Reaction chemistry of hypodentate cobalt diamine complexes

2013 ◽  
Vol 42 (44) ◽  
pp. 15617 ◽  
Author(s):  
Aaron R. Funk ◽  
Efram Goldberg ◽  
Eddie L. Chang ◽  
Scott A. Trammell ◽  
D. Andrew Knight
Keyword(s):  
Metal Ions ◽  
Charge Density ◽  
High Charge ◽  
High Charge Density

scholarly journals Correlation of Impedance and Effective Electrode Area of Iridium Oxide Neural Electrodes

2017 ◽  
Vol 70 (9) ◽  
pp. 1016 ◽  
Author(s):  
Alexander R. Harris ◽  
Antonio G. Paolini
Keyword(s):  
Charge Density ◽  
Iridium Oxide ◽  
Neural Stimulation ◽  
Electrode Impedance ◽  
Platinum Electrodes ◽  
High Charge ◽  
State Diffusion ◽  
High Charge Density ◽  
Steady State Diffusion ◽  
Total Activation

Iridium oxide is routinely used for bionic applications owing to its high charge injection capacity. The electrode impedance at 1 kHz is typically reported to predict neural recording performance. In this article, the impedance of activated iridium oxide films (AIROFs) has been examined. The impedance of unactivated iridium electrodes was half that of platinum electrodes of similar geometry, indicating some iridium oxide was present on the electrode surface. A two time constant equivalent circuit was used to model the impedance of activated iridium. The impedance at low and intermediate frequencies decreased with increasing number of activation pulses and total activation charge. The impedance at 12 Hz correlated with the steady-state diffusion electroactive area. The impedance at 12 Hz also correlated with the charge density of the electrode. The high charge density and low impedance of AIROFs may provide improved neural stimulation and recording properties compared with typically used platinum electrodes.

Combined Alkali‐Organoammonium Structure Direction of High‐Charge‐Density Heteroatom‐Containing Aluminophosphate Molecular Sieves

2019 ◽  
Vol 58 (27) ◽  
pp. 9032-9037 ◽  
Author(s):  
Seungwan Seo ◽  
Nak Ho Ahn ◽  
Jeong Hwan Lee ◽  
Lisa M. Knight ◽  
Jaime G. Moscoso ◽  
...  
Keyword(s):  
Charge Density ◽  
Molecular Sieves ◽  
High Charge ◽  
Aluminophosphate Molecular Sieves ◽  
High Charge Density

scholarly journals Expanding the portfolio of tribo-positive materials: Aniline formaldehyde condensates for high charge density triboelectric nanogenerators

Nano Energy ◽  
2020 ◽  
Vol 67 ◽  
pp. 104291 ◽  
Author(s):  
Pengfei Zhao ◽  
Navneet Soin ◽  
Amit Kumar ◽  
Lin Shi ◽  
Shaoliang Guan ◽  
...  
Keyword(s):  
Charge Density ◽  
High Charge ◽  
High Charge Density ◽  
Triboelectric Nanogenerators ◽  
Positive Materials

Combined Alkali‐Organoammonium Structure Direction of High‐Charge‐Density Heteroatom‐Containing Aluminophosphate Molecular Sieves

2019 ◽  
Vol 131 (27) ◽  
pp. 9130-9135 ◽  
Author(s):  
Seungwan Seo ◽  
Nak Ho Ahn ◽  
Jeong Hwan Lee ◽  
Lisa M. Knight ◽  
Jaime G. Moscoso ◽  
...  
Keyword(s):  
Charge Density ◽  
Molecular Sieves ◽  
High Charge ◽  
Aluminophosphate Molecular Sieves ◽  
High Charge Density

Characterization of high charge density ampholytic copolymers prepared by microemulsion polymerization

Polymer ◽  
1993 ◽  
Vol 34 (18) ◽  
pp. 3873-3886 ◽  
Author(s):  
Jean-Marc Corpart ◽  
Joseph Selb ◽  
Françoise Candau
Keyword(s):  
Charge Density ◽  
Microemulsion Polymerization ◽  
High Charge ◽  
High Charge Density
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