Simple Strategy for Rapid and Sensitive Detection of Avian Influenza A H7N9 Virus Based on Intensity-Modulated SPR Biosensor and New Generated Antibody

Ying Feng Chang, Wen Hung Wang, Yi Wei Hong, Ruei Yu Yuan, Kuan Hsuan Chen, Yu Wen Huang, Po Liang Lu, Yen Hsu Chen, Yi Ming Arthur Chen, Li Chen Su, Sheng Fan Wang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In 2013 a new reassortant avian influenza A H7N9 virus emerged in China, causing human infection with high mortality. An accurate and timely diagnosis is crucial for controlling the outbreaks of the disease. We therefore propose a simple strategy for rapidly and sensitively detecting the H7N9 virus using an intensity-modulated surface plasmon resonance (IM-SPR) biosensor integrated with a new generated monoclonal antibody. The novel antibody exhibits significant specificity to recognize H7N9 virus compared with other clinical human influenza isolates (p < 0.01). Experimentally, the detection limit of the proposed approach for H7N9 virus detection is estimated to be 144 copies/mL, which is a 20-fold increase in sensitivity compared with homemade target-captured ELISA using the identical antibody. For the measurement of mimic clinical specimens containing the H7N9 virus mixed with nasal mucosa from flu-like syndrome patients, the detection limit is calculated to be 402 copies/mL, which is better than conventional influenza detection assays; quantitative reverse transcription polymerase chain reaction (qRT-PCR) and rapid influenza diagnostic test (RIDT). Most importantly, the assay time took less than 10 min. Combined, the results of this study indicate that the proposed simple strategy demonstrates high sensitivity and time-saving in H7N9 virus detection. By incorporating a high specific recognizer, the proposed technique has the potential to be used in applications and development of other emerging or re-emerging microbe detection platforms.

Original languageEnglish
Pages (from-to)1861-1869
Number of pages9
JournalAnalytical Chemistry
Volume90
Issue number3
DOIs
Publication statusPublished - Feb 6 2018
Externally publishedYes

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Viruses
Biosensors
Antibodies
Assays
Polymerase chain reaction
Surface plasmon resonance
Transcription
Monoclonal Antibodies

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Simple Strategy for Rapid and Sensitive Detection of Avian Influenza A H7N9 Virus Based on Intensity-Modulated SPR Biosensor and New Generated Antibody. / Chang, Ying Feng; Wang, Wen Hung; Hong, Yi Wei; Yuan, Ruei Yu; Chen, Kuan Hsuan; Huang, Yu Wen; Lu, Po Liang; Chen, Yen Hsu; Chen, Yi Ming Arthur; Su, Li Chen; Wang, Sheng Fan.

In: Analytical Chemistry, Vol. 90, No. 3, 06.02.2018, p. 1861-1869.

Research output: Contribution to journalArticle

Chang, Ying Feng ; Wang, Wen Hung ; Hong, Yi Wei ; Yuan, Ruei Yu ; Chen, Kuan Hsuan ; Huang, Yu Wen ; Lu, Po Liang ; Chen, Yen Hsu ; Chen, Yi Ming Arthur ; Su, Li Chen ; Wang, Sheng Fan. / Simple Strategy for Rapid and Sensitive Detection of Avian Influenza A H7N9 Virus Based on Intensity-Modulated SPR Biosensor and New Generated Antibody. In: Analytical Chemistry. 2018 ; Vol. 90, No. 3. pp. 1861-1869.
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