1
Department of Chemistry, Dehloran Branch, Islamic Azad University, Dehloran, Iran
2
Medical Biology Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
3
Nutrition Health Research center, Hamadan University of Medical Sciences, Hamadan, Iran
Abstract
In this paper, we developed a simple and disposable electrochemical paper-based immunosensor (e-PI) based on manual screen printing method via patterned sticker label film on paper. The proposed electrochemical sensors provide the opportunity for economical single-use analysis of biological samples. The e-PI was constructed with hydrophobic glossy paper layers on a wax paper substrate to define three-electrode system. A carbon ink was used for construction of e-PI which composed of the graphite powder and cellulose acetate. The stability of the e-PI was evaluated using electrochemical methods. Carbohydrate antigen 15-3 (CA15-3) antibodies to the target CA15-3 antigen were immobilized on gold-modified graphite electrodes on the e-PI. Electrochemical properties of e-PI were investigated by cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy. The fabricated e-PI offers a vast linear range from 0.5 to 200 U mL−1 with a low limit of detection 0.15 U mL−1. Furthermore, the fabricated e-PI has acceptable stability, accuracy and high sensitivity.
Hosseinzadeh,L. , Fattahi,A. and Khoshroo,A. (2022). A Flexible Paper-based Electrochemical Immunosensor Towards Detection of Carbohydrate Antigen 15-3. Analytical and Bioanalytical Electrochemistry, 14(5), 445-454.
MLA
Hosseinzadeh,L. , , Fattahi,A. , and Khoshroo,A. . "A Flexible Paper-based Electrochemical Immunosensor Towards Detection of Carbohydrate Antigen 15-3", Analytical and Bioanalytical Electrochemistry, 14, 5, 2022, 445-454.
HARVARD
Hosseinzadeh L., Fattahi A., Khoshroo A. (2022). 'A Flexible Paper-based Electrochemical Immunosensor Towards Detection of Carbohydrate Antigen 15-3', Analytical and Bioanalytical Electrochemistry, 14(5), pp. 445-454.
CHICAGO
L. Hosseinzadeh, A. Fattahi and A. Khoshroo, "A Flexible Paper-based Electrochemical Immunosensor Towards Detection of Carbohydrate Antigen 15-3," Analytical and Bioanalytical Electrochemistry, 14 5 (2022): 445-454,
VANCOUVER
Hosseinzadeh L., Fattahi A., Khoshroo A. A Flexible Paper-based Electrochemical Immunosensor Towards Detection of Carbohydrate Antigen 15-3. Anal. Bioanal. Electrochem., 2022; 14(5): 445-454.