A cobalt corrole/carbon nanotube enables simultaneous electrochemical monitoring of oxygen and ascorbic acid in the rat brain

The Analyst ◽  
2020 ◽  
Vol 145 (1) ◽  
pp. 70-75
Author(s):  
Xiaomeng Liu ◽  
Taotao Feng ◽  
Wenliang Ji ◽  
Zhaojun Wang ◽  
Meining Zhang
Keyword(s):  
Ascorbic Acid ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Rat Brain ◽  
Simultaneous Detection ◽  
Electrochemical Monitoring ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode

Simultaneous detection of O2 and ascorbic acid in the rat brain using a cobalt corrole and carbon nanotube nanocomposite modified carbon fiber electrode.

Carbon Nanotube-Modified Carbon Fiber Microelectrodes for In Vivo Voltammetric Measurement of Ascorbic Acid in Rat Brain

2007 ◽  
Vol 79 (17) ◽  
pp. 6559-6565 ◽  
Author(s):  
Meining Zhang ◽  
Kun Liu ◽  
Ling Xiang ◽  
Yuqing Lin ◽  
Lei Su ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Rat Brain ◽  
Voltammetric Measurement ◽  
Carbon Fiber Microelectrodes

scholarly journals Sharpened and mechanically robust carbon fiber electrode arrays for neural interfacing

2021 ◽  
Author(s):  
Elissa J Welle ◽  
Joshua E Woods ◽  
Ahmad A. Jiman ◽  
Julianna M Richie ◽  
Elizabeth C Bottorff ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Vagus Nerve ◽  
Rat Brain ◽  
Carbon Fibers ◽  
Dorsal Root Ganglia ◽  
Dorsal Root ◽  
Neural Recording ◽  
Bladder Pressure ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode

AbstractObjectiveBioelectric medicine offers therapeutic diagnoses and treatments for disorders of the nervous system unresponsive to pharmacological treatments. While current neural interfaces effectively treat many disorders with stimulation, recording specificity is often limited to gross averages across many neurons or axons. Here, we develop and describe a novel, robust carbon fiber electrode array adaptable to many neural structures for precise neural recording.ApproachCarbon fibers were sharpened using a blowtorch method made reproducible by using the reflection of fibers against the surface of a water bath. Arrays of carbon fibers were developed by partially embedding carbon fibers in medical-grade silicone to improve robustness to fracture. Acute spontaneous electrophysiology was recorded from the rat cervical vagus nerve, feline dorsal root ganglia, and rat brain. Acute brushing and bladder pressure electrophysiology was recorded from feline dorsal root ganglia as well.Main resultsBlowtorching resulted in fibers of 72.3 ± 33.5 degree tip angle with 146.8 ± 17.7 μm exposed carbon. Silicone-embedded carbon fiber arrays were robust to bending (87.5% of fibers remained unbroken, 50,000 passes). Observable neural clusters were recorded using sharpened carbon fiber electrodes from rat cervical vagus nerve (41.8 μVpp, N=3 electrodes), feline dorsal root ganglia (101.1 μVpp, N=32 electrodes), and rat brain (80.7 μVpp, N=7 electrodes). Recordings from the feline dorsal root ganglia included physiologically-relevant signals from increased bladder pressure and cutaneous brushing.SignificanceThese results suggest that this carbon fiber array is a uniquely robust and adaptable neural recording device, useful for specific electrophysiology measurements. In the future, this device may be useful as a bioelectric medicine tool for diagnosis and closed-loop neural control of therapeutic treatments and monitoring systems.

Synergistic effect of LiF coating and carbon fiber electrode on enhanced electrochemical performance of Li2MnSiO4

2021 ◽  
Vol 373 ◽  
pp. 137911
Author(s):  
S. Krishna Kumar ◽  
Sourav Ghosh ◽  
Madhushri Bhar ◽  
Ajay K. Kavala ◽  
Sivaraman Patchaiyappan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Synergistic Effect ◽  
Electrochemical Performance ◽  
Carbon Fiber Electrode ◽  
Enhanced Electrochemical Performance ◽  
Fiber Electrode

Electrochemical sensor for nitric oxide using layered films composed of a polycationic dendrimer and nickel(II) phthalocyaninetetrasulfonate deposited on a carbon fiber electrode

2014 ◽  
Vol 182 (5-6) ◽  
pp. 1079-1087 ◽  
Author(s):  
Juliana Cancino ◽  
Sabine Borgmann ◽  
Sergio A. S. Machado ◽  
Valtencir Zucolotto ◽  
Wolfgang Schuhmann ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Fiber ◽  
Electrochemical Sensor ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode

scholarly journals CoMnO2-Decorated Polyimide-Based Carbon Fiber Electrodes for Wire-Type Asymmetric Supercapacitor Applications

2020 ◽  
Author(s):  
Young-Hun Cho ◽  
Jae-Gyoung Seong ◽  
Jae-Hyun Noh ◽  
Da-Young Kim ◽  
Yong-Sik Chung ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Rate Capability ◽  
Ammonium Persulfate ◽  
Chemical Oxidation ◽  
Sem Analysis ◽  
Metal Nanostructures ◽  
Carbon Fiber Electrode ◽  
Coated Carbon ◽  
Fiber Electrode

In this work, we report the carbon fiber-based wire-type asymmetric supercapacitors (ASCs). The highly conductive carbon fibers were prepared by the carbonized and graphitized process using the polyimide (PI) as a carbon fiber precursor. To assemble the ASC device, the CoMnO2-coated and Fe2O3-coated carbon fibers were used as the cathode and the anode materials, respectively. FE-SEM analysis confirmed that the CoMnO2-coated carbon fiber electrode exhibited the porous hierarchical interconnected nanosheet structures, depending on the added amounts of ammonium persulfate (APS) as an oxidizing agent, and Fe2O3-coated carbon fiber electrode showed a uniform distribution of porous Fe2O3 nanorods over the surface of carbon fibers. The nanostructured CoMnO2 were directly deposited onto carbon fibers by a chemical oxidation route without high temperature treatments. In particular, the electrochemical properties of the CoMnO2-coated carbon fiber with the concentration of 6 mmol APS presented the enhanced electrochemical activity, probably due to its porous morphologies and good conductivity. Further, to reduce the interfacial contact resistance as well as improve the adhesion between transition metal nanostructures and carbon fibers, the carbon fibers were pre-coated with the Ni layer as a seed layer using an electrochemical deposition method. The fabricated ASC device delivered a specific capacitance of 221 F g-1 at 0.7 A g-1 and good rate capability of 34.8% at 4.9 A g-1. Moreover, the wire-type device displayed the superior energy density of 60.16 Wh kg-1 at a power density of 490 W kg-1 and excellent capacitance retention of 95% up to 3,000 charge/discharge cycles.

A Study of the Determination of Cu(II) by Anodic Stripping Voltammetry on a Novel Nylon/Carbon Fiber Electrode

2004 ◽  
Vol 16 (7) ◽  
pp. 524-531 ◽  
Author(s):  
A. Mylonakis ◽  
A. Economou ◽  
P. R. Fielden ◽  
N. J. Goddard ◽  
A. Voulgaropoulos
Keyword(s):  
Carbon Fiber ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode

scholarly journals In-plane and through-plane gas permeability of carbon fiber electrode backing layers

2006 ◽  
Vol 162 (1) ◽  
pp. 228-238 ◽  
Author(s):  
Jeff T. Gostick ◽  
Michael W. Fowler ◽  
Mark D. Pritzker ◽  
Marios A. Ioannidis ◽  
Leya M. Behra
Keyword(s):  
Carbon Fiber ◽  
Gas Permeability ◽  
Carbon Fiber Electrode ◽  
Fiber Electrode
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