Microchimica Acta

, 186:223 | Cite as

A field effect transistor modified with reduced graphene oxide for immunodetection of Ebola virus

  • Xin Jin
  • Hong Zhang
  • Yu-Tao Li
  • Meng-Meng Xiao
  • Zhi-Ling Zhang
  • Dai-Wen Pang
  • Gary WongEmail author
  • Zhi-Yong ZhangEmail author
  • Guo-Jun ZhangEmail author
Original Paper


The authors describe a field effect transistor (FET) based immunoassay for the detection of inactivated ebola virus (EBOV). An equine antibody against the EBOV glycoprotein was immobilized on the surface of the FET that was previously modified with reduced graphene oxide (RGO). The antibody against EBOV was immobilized on the modified FET, and the response to EBOV was measured as a function of the shift of Dirac voltage. The method can detect the EBOV over the concentration range from 2.4 × 10−12 g·mL−1 to 1.2 × 10−7 g·mL−1 and with a limit of detection as low as 2.4 pg·mL−1. The assay has satisfactory specificity and was applied to the quantitation of inactivated EBOV in spiked serum.

Graphical abstract

Schematic presentation of the field effect transistor (FET) modified with reduced graphene oxide (RGO) for Ebola Virus (EBOV) detection. Specific binding between EBOV and the anti-EBOV antibody (Ab) on the FET device leads to obvious current change.


Ebola virus Field effect transistor Biosensor Sensitive detection Reduced graphene oxide Immunoreaction 



This work was supported by the National Natural Science Foundation of China (Nos. 21475034, 21675041, and 61390504).

Compliance with ethical standards

The author(s) declare that they have no competing interests. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Supplementary material

604_2019_3256_MOESM1_ESM.doc (1 mb)
ESM 1 (DOC 1042 kb)


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Laboratory MedicineHubei University of Chinese MedicineWuhanPeople’s Republic of China
  2. 2.Teaching and Research Office of Forensic MedicineHubei University of Chinese MedicineWuhanPeople’s Republic of China
  3. 3.Hunan Institute of Advanced Sensing and Information TechnologyXiangtan UniversityXiangtanPeople’s Republic of China
  4. 4.Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular SciencesWuhan UniversityWuhanPeople’s Republic of China
  5. 5.Institut Pasteur of ShanghaiChinese Academy of SciencesShanghaiPeople’s Republic of China
  6. 6.Département de microbiologie-infectiologieetd’immunologieUniversité LavalQuébec CityCanada

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