An Adhesive‐Integrated Stretchable Silver‐Silver Chloride Electrode Array for Unobtrusive Monitoring of Gastric Neuromuscular Activity

2021 ◽  
pp. 2001229
Author(s):  
Jonas F. Kurniawan ◽  
Boris Tjhia ◽  
Vincent M. Wu ◽  
Andrew Shin ◽  
Nathan L. J. Sit ◽  
...  
Keyword(s):  
Silver Chloride ◽  
Electrode Array ◽  
Silver Chloride Electrode ◽  
Neuromuscular Activity ◽  
Silver Silver ◽  
Silver Silver Chloride

scholarly journals Fabrication of Parylene-Coated Microneedle Array Electrode for Wearable ECG Device

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5183
Author(s):  
Afraiz Tariq Satti ◽  
Jinsoo Park ◽  
Jangwoong Park ◽  
Hansang Kim ◽  
Sungbo Cho
Keyword(s):  
Silver Chloride ◽  
Equivalent Circuit Model ◽  
Electrode Array ◽  
Motion Artifacts ◽  
Microneedle Array ◽  
Ecg Monitoring ◽  
Insertion Force ◽  
Movement Artifacts ◽  
Silver Silver ◽  
Silver Silver Chloride

Microneedle array electrodes (MNE) showed immense potential for the sensitive monitoring of the bioelectric signals by penetrating the stratum corneum with high electrical impedance. In this paper, we introduce a rigid parylene coated microneedle electrode array and portable electrocardiography (ECG) circuit for monitoring of ECG reducing the motion artifacts. The developed MNE showed stability and durability for dynamic and long-term ECG monitoring in comparison to the typical silver-silver chloride (Ag/AgCl) wet electrodes. The microneedles showed no mechanical failure under the compression force up-to 16 N, but successful penetration of skin tissue with a low insertion force of 5 N. The electrical characteristics of the fabricated MNE were characterized by impedance spectroscopy with equivalent circuit model. The designed wearable wireless ECG monitoring device with MNE proved feasibility of the ECG recording which reduces the noise of movement artifacts during dynamic behaviors.

Electrochemical investigation of hapten-antibody interactions by differential pulse polarography.

1982 ◽  
Vol 28 (9) ◽  
pp. 1968-1972 ◽  
Author(s):  
K R Wehmeyer ◽  
H B Halsall ◽  
W R Heineman
Keyword(s):  
Specific Antibody ◽  
Silver Chloride ◽  
Differential Pulse ◽  
Differential Pulse Polarography ◽  
Potential Range ◽  
Peak Current ◽  
Silver Chloride Electrode ◽  
Pulse Polarography ◽  
Silver Silver ◽  
Silver Silver Chloride

Abstract The binding of electroactively labeled estriol with estrogen-specific antibody and its subsequent displacement by unlabeled estriol have been monitored by differential pulse polarography. Estriol was found to be electro-inactive in the potential range -200 mV to -1000 mV vs a silver/silver chloride electrode. Estriol labeled in the 2 and 4 position with nitro groups was electroactive, giving two reduction waves at -422 mV and -481 mV vs a silver/silver chloride electrode. The peak current was linear with concentration over the range 60 micrograms/L to 3.7 mg/L. The addition of aliquots of estrogen-specific antibody reduced the peak current proportionately, indicating the binding of ligand to specific antibody. Subsequent addition of unlabeled estriol produced incremental increases in peak reduction current, indicating competitive and reversible binding of the two ligands for the antibody. Separation of bound from free labeled hapten was not necessary because reduction of the antibody-bound labeled estriol is attenuated at the electrode.

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