Immunosensor based on the ZnO nanorod networks for the detection of H1N1 swine in?uenza virus

Yunseok Jang, Jungil Park, Youngmi Kim Pak, James Jungho Pak

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper presents an immunosensor fabricated on patterned zinc oxide nanorod networks (ZNNs) for detecting the H1N1 swine in?uenza virus (H1N1 SIV). Nanostructured ZnO with a high isoelectric point (IEP, ∼9.5) possesses good absorbability for proteins with low IEPs. Hydrothermally grown ZNNs were fabricated on a patterned Au electrode (0.02 cm 2) through a lift-off process. To detect the H1N1 SIV, the sandwich enzyme-linked immunosorbent assay (ELISA) method was employed in the immunosensor. The immunosensor was evaluated in an acetate buffer solution containing 3,3′,5,5′- tetramethylbenzidine (TMB) via cyclic voltammetry at various H1N1 SIV concentrations (1 pg/mL-5 ng/mL). The measurement results of the fabricated immunosensor showed that the reduction currents of TMB at 0.25 V logarithmically increased from 259.37 to 577.98 nA as the H1N1 SIV concentration changed from 1 pg/mL to 5 ng/mL. An H1N1 SIV immunosensor, based on the patterned ZNNs, was successfully realized for detecting 1 pg/mL-5 ng/mL H1N1 SIV concentrations, with a detection limit of 1 pg/mL for H1N1 SIV.

Original languageEnglish
Pages (from-to)5173-5177
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number7
DOIs
Publication statusPublished - 2012 Jul 1

Fingerprint

Zinc Oxide
Immunosensors
Nanotubes
swine
viruses
Nanorods
Viruses
zinc oxides
nanorods
Swine
Zinc oxide
H1N1 Subtype Influenza A Virus
Isoelectric Point
Limit of Detection
enzymes
acetates
Buffers
Electrodes
Acetates
buffers

Keywords

  • H1N1 Swine In?uenza Virus
  • Immunosensor
  • ZnO Nanorod Networks

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Immunosensor based on the ZnO nanorod networks for the detection of H1N1 swine in?uenza virus. / Jang, Yunseok; Park, Jungil; Pak, Youngmi Kim; Pak, James Jungho.

In: Journal of Nanoscience and Nanotechnology, Vol. 12, No. 7, 01.07.2012, p. 5173-5177.

Research output: Contribution to journalArticle

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