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Few layered graphene oxide thin films: A potential matrix for immunosensors

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title Few layered graphene oxide thin films: A potential matrix for immunosensors
 
Creator Pachauri, Namrata
Verma, Shilpi
Singh, Priti
Singh, Surinder P.
 
Subject Electronics and Electrical Engineering
Applied Physics/Condensed Matter
Physics
 
Description We have synthesized highly exfoliated graphene oxide (GO) and used it for the fabrication of electrochemical immunosensor. The thin films of GO were spin coated onto ITO/glass substrate and thereafter Bovine Serum Albumin (BSA) antibodies (Ab) were immobilized using EDC-NHS binding chemistry to design immunobioelectrode. The graphene oxide films were characterized using different spectroscopic techniques viz FT-IR, UV-Vis spectroscopy and HRTEM. The electrochemical activity of designed immunoelectrodes was studied by cyclic voltammetry (CV) that revealed a quasi reversible behaviour of graphene oxide films. The differential pulse voltammetry (DPV) measurements of the fabricated immunoelectrodes showed successful detection of analyte at very low concentration ranges (50fg/mL-100ng/mL). The present study entails the potential of GO for the development of various immunosensors for different diseases.
 
Publisher Taylor & Francis
 
Date 2017
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/2722/1/Few%20layered%20graphene%20oxide%20.pdf
Pachauri, Namrata and Verma, Shilpi and Singh, Priti and Singh, Surinder P. (2017) Few layered graphene oxide thin films: A potential matrix for immunosensors. Integrated Ferroelectrics, 184. pp. 85-91. ISSN 1058-4587
 
Relation http://npl.csircentral.net/2722/