Enhancing sensitivity of lateral flow assay with application to SARS-CoV-2
Author(s) -
Tao Peng,
Xiangpei Liu,
L. Garry Adams,
G. S. Agarwal,
Bruce Akey,
Jeffrey D. Cirillo,
Volker Deckert,
Sahar Delfan,
Edward S. Fry,
Zehua Han,
Philip Hemmer,
George W. Kattawar,
Moochan Kim,
MingChe Lee,
ChaoYang Lu,
Jon E. Mogford,
Reed Nessler,
Ben Neuman,
Xiaoyu Nie,
Jian-Wei Pan,
J. H. Pryor,
Navid Rajil,
Yanhua Shih,
Alexei V. Sokolov,
Anatoly A. Svidzinsky,
Dawei Wang,
Zhenhuan Yi,
А. М. Желтиков,
Marlan O. Scully
Publication year - 2020
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/5.0021842
Subject(s) - sensitivity (control systems) , limiting , software portability , laser , covid-19 , materials science , optoelectronics , optics , nanotechnology , computer science , physics , electronic engineering , medicine , mechanical engineering , disease , pathology , infectious disease (medical specialty) , engineering , programming language
Lateral flow assay (LFA) has long been used as a biomarker detection technique. It has advantages such as low cost, rapid readout, portability, and ease of use. However, its qualitative readout process and lack of sensitivity are limiting factors. We report a photon-counting approach to accurately quantify LFAs while enhancing sensitivity. In particular, we demonstrate that the density of SARS-CoV-2 antibodies can be quantified and measured with an enhanced sensitivity using this simple laser optical analysis.
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