scholarly journals Low-cost electrochemical impedance spectroscopy system for corrosion monitoring of metallic antiquities and works of art

2000 ◽  
Vol 49 (2) ◽  
pp. 371-375 ◽  
Author(s):  
A. Carullo ◽  
F. Ferraris ◽  
M. Parvis ◽  
A. Vallan ◽  
E. Angelini ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Corrosion Monitoring ◽  
Works Of Art ◽  
Spectroscopy System

scholarly journals The influence of chromium as a diffusive additive in the boronizing treatment of AISI 4140 steel on the corrosion resistance of the coating evaluated by Electrochemical Impedance Spectroscopy (EIS)

2020 ◽  
Vol 318 ◽  
pp. 01040
Author(s):  
Dimitrios I. Zagkliveris ◽  
Azarias Mavropoulos ◽  
Efstathios Ntovinos ◽  
Georgios K. Triantafyllidis
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Industrial Applications ◽  
Pack Cementation ◽  
Boride Phase ◽  
Corrosion Resistant ◽  
Aisi 4140 Steel ◽  
Aisi 4140

A large variety of protective coating is being used in industrial applications to improve the resistance of the metallic substrates against corrosion. The pack-cementation method for boronizing and borochromizing is effective to produce extremely hard and corrosion resistant thick coatings and, additionally, is a low-cost and simple technique. In the present study, AISI 4140 steel specimens underwent boronizing and afterwards chromizing by the pack-cementation method using B4C as boron source and Fe-Cr as chromium source, respectively. In both treatments the appropriate activators were used. After chromizing the boronized substrate, a mixed boride phase FeCrB was formed, as it was confirmed by X-ray Diffractometry (XRD). The boronized and the borochromized specimens were subjected to Electrochemical Impedance Spectroscopy (EIS). From the analysis of the frequency response of the coating systems (Bode and Nyquist display), the conclusion that the borochromized specimens were significantly more corrosion resistant was extracted. Finally, data of optical and electron microscopy contribute to the validity of the conclusions.

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

Design of Automatic Measurement System of Lithium Battery Electrochemical Impedance Spectroscopy Based on Microcomputer

2012 ◽  
Vol 241-244 ◽  
pp. 259-264 ◽  
Author(s):  
Wang Li ◽  
Gen Wang Liu ◽  
Fu He Yang
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
High Precision ◽  
Measurement System ◽  
Lithium Battery ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Automatic Measurement ◽  
Response Curves ◽  
High Level

A system of miniaturized lithium battery electrochemical impedance spectroscopy (EIS) measurement is designed with high precision impedance converter chip AD5933 as its core. The measurement range of the system is from 0.010Hz to 100 KHz. Meanwhile, by using a high-level programming language of C#, an interface is developed which can real-time graphic display of EIS information. Through measurement and analysis of two types of impedance, the results show that detection precision of the system is less than 3.5%. Finally, amplitude-frequency response curves and Nyquist plots of HL-18650 M lithium battery at different state of charge (SOC) levels are measured. Compared with lithium battery EIS measurement system by traditional division, this system has the outstanding advantages of small size, high level of integration, low cost, simple operation and high precision. It is helpful to the mass production and application of lithium battery EIS measurement system.

Development of a Portable Electrochemical Impedance Spectroscopy System for Bio-Detection

2019 ◽  
Vol 19 (15) ◽  
pp. 5979-5987 ◽  
Author(s):  
Zhupeng Jiang ◽  
Jiafeng Yao ◽  
Li Wang ◽  
Hongtao Wu ◽  
Jingshi Huang ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Spectroscopy System

scholarly journals Electrochemical Impedance Spectroscopy Characterization of Label-Free Biosensors for the Detection of HER2 in Saliva

Proceedings ◽  
2020 ◽  
Vol 60 (1) ◽  
pp. 17
Author(s):  
Imad Abrao Nemeir ◽  
Lynn Mouawad ◽  
Joseph Saab ◽  
Walid Hleihel ◽  
Abdelhamid Errachid ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
Ease Of Use ◽  
Detection Methods ◽  
Cancer Type ◽  
Label Free ◽  
Human Epidermal Receptor

Breast cancer is the leading cancer type for women with two million new yearly infections and more than half a million dead worldwide. Human Epidermal Receptor 2 (HER2) is a prominent breast cancer biomarker that indicates aggressive cancer and is often associated with a bad prognosis and low survival rates. However, current detection methods for HER2 are often time-consuming, expensive, and require a high level of expertise. Biosensors are devices that turn biological interaction into a readable electronic signal; they are known for their high specificity and selectivity for low concentration, as well as their low cost and ease of use, thus making them a better alternative to traditional methods. Also, saliva is becoming a better alternative to blood for the detection of biomarkers due to its non-invasive collection in large quantities with simple collection methods with a richness in disease biomarkers including HER2. Thus, this project aims to develop a label-free, low cost, electrochemical biosensor for the detection of HER2 in saliva. This was done by first depositing diazonium salt onto a screen-printed electrode (SPE) through cyclic voltammetry, then immobilizing anti-HER2 antibodies on the activated SPE using 1-ethyl-3-(3-dimethylamino) propyl carbodiimide/N-hydroxysuccinimide. HER2 biomarker concentrations were detected using electrochemical impedance spectroscopy inside a microfluidic system. The biosensor showed a higher linear detection of HER2 (Y = 0.0062X + 0.1066/R2 = 0.9909) in its physiological concentration range of 5 and 40 pg/mL when compared to other interference proteins: Epidermal Growth Factor Receptor (Y = 0.0016X + 0.0188/R2 = 0.8072) and Human Epidermal Receptor 3 (Y = (0.0035X + 0.0225/R2 = 0.1302). The biosensor was then used to detect 10 pg/mL of HER2 concentration in real saliva using the standard addition methods (Y = 0.0118X + 0.1282/R2 = 0.9876).

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