PNA versus DNA in electrochemical gene sensing based on conducting polymers: study of charge and surface blocking effects on the sensor signal

The Analyst ◽  
2018 ◽  
Vol 143 (3) ◽  
pp. 687-694 ◽  
Author(s):  
Bicheng Zhu ◽  
Jadranka Travas-Sejdic
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Conducting Polymers ◽  
Charge Density ◽  
Surface Charge ◽  
Surface Charge Density ◽  
Electrochemical Impedance ◽  
Dna Sensor ◽  
Sensor Signal ◽  
Blocking Effects

In this communication, we highlight the effect of the surface charge and surface charge density on the DNA/DNA, DNA/PNA and PNA/PNA hybridisations of a polypyrrole-based DNA sensor, measured by means of electrochemical impedance spectroscopy (EIS).

Electrochemical Impedance Spectroscopy to Evaluate the Adsorption and Structural Changes of Liposome Dependent with Surface Charge

2020 ◽  
Vol MA2020-02 (68) ◽  
pp. 3685-3685
Author(s):  
Yusuke Fujino ◽  
Ryo Nakamura ◽  
Kyosuke Masuda ◽  
Ichiro Yamashita ◽  
Tomohiro Shimizu ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Surface Charge ◽  
Structural Changes ◽  
Electrochemical Impedance

Impact of Molecular Surface Charge on Biosensing by Electrochemical Impedance Spectroscopy

2016 ◽  
Vol 200 ◽  
pp. 161-167 ◽  
Author(s):  
Yaron Ram ◽  
Tal Yoetz-Kopelman ◽  
Yael Dror ◽  
Amihay Freeman ◽  
Yosi Shacham-Diamand
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Surface Charge ◽  
Electrochemical Impedance ◽  
Molecular Surface
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