User-friendly point-of-care detection of influenza A (H1N1) virus using light guide in three-dimensional photonic crystal
Open Access
- 22 June 2018
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in RSC Advances
- Vol. 8 (41), 22991-22997
- https://doi.org/10.1039/c8ra02596g
Abstract
This paper proposes a user-friendly and highly sensitive detection method for influenza A (H1N1) virus using the cooperation of quantum dot (Qdot)-aptamer beacons and light guide in a three-dimensional (3D) photonic crystal (PC). For easy use, we present a fluorescent probe-based ‘OFF–ON’ detection protocol. First, a mixture composed of Qdot-aptamer beacons and dark quencher-labeled guard DNA (G-DNA) was prepared. It initially quenched the fluorescent signals to significantly low intensity, i.e., ‘OFF’ state. Then, the influenza A (H1N1) virus preferentially bound to the aptamer and G-DNA was released, so that the fluorescent signal was restored and biosensor turned to ‘ON’ state. The restored fluorescence signal changed quantitatively according to the concentration of the target influenza A (H1N1) virus. Owing to the light guide of the 3D nanoporous PC structure, we achieved high sensitivity with ultra-low limit of detection (LOD) of 138 pg mL−1 and high selectivity over other species of influenza A virus and biomolecules. Additionally, with the benefit of enhanced output fluorescent signals, the target virus could be easily detected with a low-cost and portable home-made setup (total cost of only 20 US dollars) and a built-in camera in a smartphone.Funding Information
- National Research Foundation of Korea (2016R1D1A1B03936000, 2017R1A4A1015564, 2017S1A5B6054769)
- Ministry of Science, ICT and Future Planning
This publication has 27 references indexed in Scilit:
- Rapid and Highly Sensitive Method for Influenza A (H1N1) Virus DetectionAnalytical Chemistry, 2012
- Biologically inspired humidity sensor based on three-dimensional photonic crystalsApplied Physics Letters, 2010
- Quantum Dot Biosensors for Ultrasensitive Multiplexed DiagnosticsAngewandte Chemie, 2010
- Detection of avian influenza virus by fluorescent DNA barcode-based immunoassay with sensitivity comparable to PCRThe Analyst, 2009
- Detecting influenza epidemics using search engine query dataNature, 2009
- Single virus detection from the reactive shift of a whispering-gallery modeProceedings of the National Academy of Sciences of the United States of America, 2008
- Time Lines of Infection and Disease in Human Influenza: A Review of Volunteer Challenge StudiesAmerican Journal of Epidemiology, 2008
- The evolution of epidemic influenzaNature Reviews Genetics, 2007
- Absorption spectrum (380–700 nm) of pure water II Integrating cavity measurementsApplied Optics, 1997
- Diffraction of light by ordered suspensionsThe Journal of Physical Chemistry, 1969