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Long Segment Detection of Htlv-1 Genome Based on the Fluorescence Quenching Technique Publisher



Ghobadi MZ1, 2 ; Mozhgani SH3, 4 ; Hakimian F1 ; Norouzi M2, 4 ; Rezaee SA5 ; Ghourchian H1
Authors
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Authors Affiliations
  1. 1. Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
  2. 2. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
  4. 4. Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Immunology Research Center, Inflammation and Inflammatory Diseases Division, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

Source: Heliyon Published:2018


Abstract

Detecting fluorescence changes due to energy transfer between a quencher and fluorophore is a common method used for the fluorescence-based biosensors. In the present report, a new biosensor for long segment detection of the human T cell-lymphotropic virus 1 genome was constructed based on the fluorescence quenching of graphene oxide by gold nanoparticles. The fluorescence signal of unmodified graphene oxide was measured before and after hybridization of target and probes functionalized with gold nanoparticles. The limit of detection of the biosensor was determined to be around 10 pg/mL. The specific design for long segment of target assures the selectivity of biosensor. Our results proposed that further development may be useful to detect other viruses. © 2018