, Volume 13, Issue 5, pp 1555–1567 | Cite as

Detection of Anti-tetanus Toxoid Monoclonal Antibody by Using Modified Polycarbonate Surface

  • Salimeh Raeisi
  • Ahmad MolaeiradEmail author
  • Minoo Sadri
  • Hamideh Rouhani Nejad


In recent years, CD surface modification methods are employed for immunoassay techniques that is called BioCD technology. In this research, first polycarbonate surface was activated with UV ozone and a hydrophilic surface was obtained. Contact angle measurements and atomic force microscopy technique confirmed the hydrophilic property of surface. After that, tetanus toxoid was immobilized on modified CD surface then specific monoclonal antibody, gold nanoparticles conjugated antibody, silver salt, and hydroquinone were added on modified CD surface. So a sandwiches complex as tetanus toxoid, tetanus toxoid monoclonal antibody, and gold nanoparticles conjugated antibody was obtained on CD surface. ATR result showed the immobilization of tetanus toxoid on modified CD surface. Localized surface plasmon resonance (LSPR) and DLS results confirmed the complex formation. Silver salt and hydroquinone were added for signal amplification. Detection limit of anti-tetanus toxoid IgG monoclonal antibody was obtained 0.005 IU/ml by LSPR and DLS techniques. The presented method increases the assay’s sensitivity. BioCD-based immunoassay for detection of anti-tetanus toxoid IgG monoclonal antibody could be applicable in development and fabrication of biomedical devices.


BioCD Tetanus toxoid Monoclonal antibody Gold nanoparticle LSPR 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • Salimeh Raeisi
    • 1
  • Ahmad Molaeirad
    • 1
    Email author
  • Minoo Sadri
    • 1
  • Hamideh Rouhani Nejad
    • 1
  1. 1.Department of Biotechnology and BioscienceMalek-Ashtar University of TechnologyTehranIran

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