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Related Experiment Video

Updated: May 21, 2026

Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications
11:25

Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications

Published on: April 21, 2016

Rapid flu diagnosis using silicon nanowire sensor.

Fangxia Shen1, Jindong Wang, Zhenqiang Xu

  • 1State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.

Nano Letters
|June 27, 2012
PubMed
Summary

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Rapid influenza A virus detection is crucial. New silicon nanowire (SiNW) sensors offer quick and accurate flu diagnosis from breath samples, significantly outperforming traditional methods.

Area of Science:

  • Biotechnology
  • Nanotechnology
  • Infectious Disease Diagnostics

Background:

  • Annual influenza epidemics cause significant global economic and human costs.
  • Current diagnostic methods for influenza lack the speed and reliability needed for timely clinical intervention.

Purpose of the Study:

  • To develop and validate a rapid, selective, and sensitive diagnostic method for influenza A virus detection.
  • To assess the performance of silicon nanowire (SiNW) sensor devices in clinical settings using exhaled breath condensate (EBC) samples.

Main Methods:

  • Detection of influenza A viruses using silicon nanowire (SiNW) sensor devices in diluted clinical EBC samples.
  • Evaluation of SiNW sensor selectivity using H1N1 viruses, 8 iso PGF 2a, and inert nanoparticles.
  • Assessment of magnetic bead enhancement for SiNW sensing of low-level analytes.

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Microfluidic Chip Fabrication and Method to Detect Influenza
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Microfluidic Chip Fabrication and Method to Detect Influenza

Published on: March 26, 2013

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Last Updated: May 21, 2026

Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications
11:25

Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications

Published on: April 21, 2016

Microfluidic Chip Fabrication and Method to Detect Influenza
09:43

Microfluidic Chip Fabrication and Method to Detect Influenza

Published on: March 26, 2013

Main Results:

  • Selective detection of influenza A viruses down to 29 viruses/μL in EBC samples within minutes.
  • SiNW sensor responses correlated with RT-qPCR results in 90% of clinical EBC samples.
  • Demonstrated high selectivity and potential for magnetic bead-enhanced detection.

Conclusions:

  • SiNW sensor devices provide a rapid and reliable method for influenza diagnosis in clinical settings.
  • The SiNW sensor offers a diagnostic turnaround time two orders of magnitude faster than RT-qPCR.
  • This technology has the potential to significantly improve influenza management and reduce public health burdens.