Title :
Printed electrochemical based biosensors on flexible substrates
Author :
Reddy, A.S.G. ; Narakathu, Binu B. ; Atashbar, M.Z. ; Rebros, M. ; Hrehorova, E. ; Joyce, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Western Michigan Univ., Kalamazoo, MI, USA
Abstract :
A flexible substrate electrochemical biosensor was successfully printed on a polyethylene terephthalate (PET) film with silver (Ag) electrodes using silver nanoparticle based ink. The electrochemical impedance spectroscopy (EIS) response of the printed sensor for detecting low concentrations of bio/chemical species revealed a very high sensitivity at pico molar (pM) concentration levels of D-Proline, Sarcosine, Cadmium sulphide (CdS) and Potassium chloride (KCl). The impedance response of the biosensor towards these species was analyzed and is reported in this paper.
Keywords :
biochemistry; biosensors; electrochemical electrodes; electrochemical impedance spectroscopy; electrochemical sensors; molecular biophysics; nanoparticles; polymer films; printing; silver; Ag; D-proline; EIS response; PET film; biosensor impedance response; cadmium sulphide; electrochemical impedance spectroscopy; flexible substrates; low concentration detection; polyethylene terephthalate film; potassium chloride; printed electrochemical based biosensors; sarcosine; silver electrodes; silver nanoparticle based ink;
Conference_Titel :
Sensors, 2010 IEEE
Conference_Location :
Kona, HI
Print_ISBN :
978-1-4244-8170-5
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2010.5690281
