Development of Printed-Type Corrosion Monitoring Sensor and Analysis of Electrochemical Impedance Response

2018 ◽  
Vol 165 (11) ◽  
pp. C743-C748 ◽  
Author(s):  
Akihiro Aiba ◽  
Naoto Fujii ◽  
Yoshinao Hoshi ◽  
Isao Shitanda ◽  
Masayuki Itagaki
Keyword(s):  
Electrochemical Impedance ◽  
Corrosion Monitoring ◽  
Impedance Response

scholarly journals Study on Corrosion Monitoring of Rebar in Concrete Structure under Service with Electrochemical Impedance Spectroscopy

2018 ◽  
Vol 67 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Hiroyuki Tokieda ◽  
Tatsuki Okamoto ◽  
Yoshinao Hoshi ◽  
Isao Shitanda ◽  
Masayuki Itagaki
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Concrete Structure ◽  
Electrochemical Impedance ◽  
Corrosion Monitoring

The Role of Hydroxide in the Electrochemical Impedance Response of Passive Films in Corrosion Environments

2006 ◽  
Vol 153 (3) ◽  
pp. B101 ◽  
Author(s):  
Román Cabrera-Sierra ◽  
M. A. Pech-Canul ◽  
Ignacio González
Keyword(s):  
Electrochemical Impedance ◽  
Passive Films ◽  
Impedance Response

scholarly journals An Enzymatic Multiplexed Impedimetric Sensor Based on α-MnO2/GQD Nano-Composite for the Detection of Diabetes and Diabetic Foot Ulcer Using Micro-Fluidic Platform

Chemosensors ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 339
Author(s):  
Ashish Mathur ◽  
Hari Chandra Nayak ◽  
Shailendra Rajput ◽  
Souradeep Roy ◽  
Shalini Nagabooshanam ◽  
...  
Keyword(s):  
Diabetic Foot ◽  
Electrochemical Impedance ◽  
Glucose Monitoring ◽  
Foot Ulcer ◽  
Diabetic Foot Ulcer ◽  
Sample Volume ◽  
Internal Organs ◽  
Nano Composite ◽  
Impedance Response ◽  
Device Applications

Diabetes is widely considered as a silent killer which affects the internal organs and ultimately has drastic impacts on our day-to-day activities. One of the fatal outcomes of diabetes is diabetic foot ulcer (DFU); which, when becomes chronic, may lead to amputation. The incorporation of nanotechnology in developing bio-sensors enables the detection of desired biomarkers, which in our study are glucose and L-tyrosine; which gets elevated in patients suffering from diabetes and DFUs, respectively. Herein, we report the development of an enzymatic impedimetric sensor for the multi-detection of these biomarkers using an electrochemical paper-based analytical device (µ-EPADs). The structure consists of two working electrodes and a counter electrode. One working electrode is modified with α-MnO2-GQD/tyrosinase hybrid to aid L-tyrosine detection, while the other electrode is coated with α-MnO2-GQD/glucose oxidase hybrid for glucose monitoring. Electrochemical impedance spectroscopy has been employed for the quantification of glucose and L-tyrosine, within a concentration range of 50–800 mg/dL and 1–500 µmol/L, respectively, using a sample volume of approximately 200 µL. The impedance response exhibited a linear relationship over the analyte concentration range with detection limits of ~58 mg/dL and ~0.3 µmol/L for glucose and tyrosine respectively, with shelf life ~1 month. The sensing strategy was also translated to Arduino-based device applications by interfacing the µ-EPADs with miniaturized electronics.

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