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Open AccessJournal ArticleDOI

On-Site Detection of SARS-CoV-2 Antigen by Deep Learning-Based Surface-Enhanced Raman Spectroscopy and Its Biochemical Foundations.

TLDR
In this article, a deep learning-based surface-enhanced Raman spectroscopy technique was developed for the sensitive, rapid, and on-site detection of the SARS-CoV-2 antigen in the throat swabs or sputum from 30 confirmed COVID-19 patients.
Abstract
A rapid, on-site, and accurate SARS-CoV-2 detection method is crucial for the prevention and control of the COVID-19 epidemic. However, such an ideal screening technology has not yet been developed for the diagnosis of SARS-CoV-2. Here, we have developed a deep learning-based surface-enhanced Raman spectroscopy technique for the sensitive, rapid, and on-site detection of the SARS-CoV-2 antigen in the throat swabs or sputum from 30 confirmed COVID-19 patients. A Raman database based on the spike protein of SARS-CoV-2 was established from experiments and theoretical calculations. The corresponding biochemical foundation for this method is also discussed. The deep learning model could predict the SARS-CoV-2 antigen with an identification accuracy of 87.7%. These results suggested that this method has great potential for the diagnosis, monitoring, and control of SARS-CoV-2 worldwide.

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Citations
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Journal ArticleDOI

Label-Free Spectroscopic SARS-CoV-2 Detection on Versatile Nanoimprinted Substrates

TL;DR: A large-area and label-free testing platform that combines surface-enhanced Raman spectroscopy and machine learning for the rapid and accurate detection of SARS-CoV-2, and envision that it will offer an important tool for virus detection and future outbreak preparedness.
Journal ArticleDOI

Surface-enhanced Raman scattering-based immunoassay for severe acute respiratory syndrome coronavirus 2

TL;DR: A surface-enhanced Raman scattering (SERS)-based immunoassay involving an antibody pair, SERS-active hollow Au nanoparticles (NPs), and magnetic beads for the detection of SARS-CoV-2 was presented in this article .
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Performance of Antigen Detection Tests for SARS-CoV-2: A Systematic Review and Meta-Analysis

TL;DR: LFIA tests, though with moderate sensitivity, appear as the most attractive method for use in POCs and for performing seroprevalence studies, and rapid ATs show higher sensitivity in symptomatic patients compared to asymptomatic patients.
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Probing the mutation independent interaction of DNA probes with SARS-CoV-2 variants through a combination of surface-enhanced Raman scattering and machine learning

TL;DR: In this article , a set of DNA probes targeting a specific segment of the nucleocapsid phosphoprotein (N) gene of SARS-CoV-2 with high binding efficiency was developed.
Journal ArticleDOI

High-sensitivity and point-of-care detection of SARS-CoV-2 from nasal and throat swabs by magnetic SERS biosensor

TL;DR: In this article , a point-of-care detection method based on magnetic SERS biosensor composed of Fe3O4-Au nanocomposite and Au nanoneedles array was developed to detect SARS-CoV-2 directly.
References
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Journal ArticleDOI

Early-Stage Lung Cancer Diagnosis by Deep Learning-Based Spectroscopic Analysis of Circulating Exosomes.

TL;DR: An accurate diagnosis of early-stage lung cancer is demonstrated, using deep learning-based surface-enhanced Raman spectroscopy of the exosomes of cells derived from normal and lung cancer cell lines, with an accuracy of 95%.
Journal ArticleDOI

Architecture and self-assembly of the SARS-CoV-2 nucleocapsid protein.

TL;DR: The architecture and self‐assembly properties of a key protein in the SARS‐CoV‐2 life cycle are revealed, with implications for both drug design and antibody‐based testing.
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Development of a SERS-based lateral flow immunoassay for rapid and ultra-sensitive detection of anti-SARS-CoV-2 IgM/IgG in clinical samples.

TL;DR: A surface-enhanced Raman scattering-based lateral flow immunoassay (SERS-LFIA) for the simultaneous detection of anti-SARS- CoV-2 IgM/IgG with high sensitivity and high accuracy exhibited high accuracy and specificity for patients with SARS-CoV- 2 infection.
Journal ArticleDOI

Microfluidic Immunoassays for Sensitive and Simultaneous Detection of IgG/IgM/Antigen of SARS-CoV-2 within 15 min.

TL;DR: A portable microfluidic immunoassay system for easy-to-use, sensitive, rapid, multiple, and on-site detection of IgG/IgM/Antigen of SARS-CoV-2 simultaneously is established and demonstrated high sensitivity and specificity.
Journal ArticleDOI

Background elimination methods for multidimensional coincidence γ-ray spectra

TL;DR: New methods to separate useful information from background in one, two, three and multidimensional spectra (histograms) measured in large multidetector γ-ray arrays are derived.
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