Characterization of a Perylenediimide Self-Assembled Monolayer on Indium Tin Oxide Electrodes Using Electrochemical Impedance Spectroscopy

2014 ◽  
Vol 118 (8) ◽  
pp. 4103-4112 ◽  
Author(s):  
Barbara P. G. Silva ◽  
Daniel Z. de Florio ◽  
Sergio Brochsztain
2020 ◽  
Vol 16 ◽  
Author(s):  
Elif Burcu AYDIN ◽  
Muhammet AYDIN ◽  
Mustafa Kemal SEZGİNTÜRK

: In this study, it was aimed to develop a reliable tool based on star-shaped poly(glycidyl methacrylate) polymer coated disposable indium tin oxide electrode for determination of Tumor necrosis factor-alpha (TNF α), an important disease biomarker. Star shaped polymer was used as an interface material for anti-TNF α antibodies immobilization. Anti-TNF α antibodies were immobilized covalently onto polymer coated indium tin oxide electrode. The immunosensor responses were recorded by electrochemical impedance spectroscopy and cyclic voltammetry techniques and electrochemical impedance spectroscopy was utilized for TNF α determination. The suggested immunosensor exhibited a linear range between 0.02 and 4 pg/mL TNF α, and the detection limit was found as 6 fg/mL. Scanning electron microscopy and atomic force microscopy were used for electrode surface characterization. In addition, the suggested immunosensor was used for TNF α sensing in human serum samples. The results displayed recoveries between 97.07 and 100.19%. Moreover, this immunosensor had a simple fabrication procedure and a long storage-stability.


2014 ◽  
Author(s):  
Kenji Kinashi ◽  
Kento Masumura ◽  
Wataru Sakai ◽  
Naoto Tsutsumi

2013 ◽  
Vol 14 (11) ◽  
pp. 2987-2993 ◽  
Author(s):  
Kenji Kinashi ◽  
Hironori Shinkai ◽  
Wataru Sakai ◽  
Naoto Tsutsumi

2004 ◽  
Vol 15 (6) ◽  
pp. 849-855 ◽  
Author(s):  
Renata K. Mendes ◽  
Renato S. Freire ◽  
Carla P. Fonseca ◽  
Silmara Neves ◽  
Lauro T. Kubota

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