Clinical applications of spectroscopic techniques in conjunction with multivariate analysis in virus diagnosis

Author:

Santos Marfran C. D.12,Mariz João V. M.2,Silva Raissa V. O.2,Morais Camilo L. M.2,Lima Kássio M. G.2

Affiliation:

1. Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano – Campus Floresta, Floresta 56400-000, Brasil

2. Química Biológica e Quimiometria, Instituto de Química, Universidade Federal de Rio Grande do Norte, Natal 59072-970, Brasil

Abstract

In view of the global pandemic that started in 2020, caused by COVID-19, the importance of the existence of fast, reliable, cheap diagnostic techniques capable of detecting the virus even in the first days of infection became evident. This review discusses studies involving the use of spectroscopic techniques in the detection of viruses in clinical samples. Techniques based on mid-infrared, near-infrared, Raman, and molecular fluorescence are explained and it was demonstrated how they can be used in conjunction with computational tools of multivariate analysis to build models capable of detecting viruses. Studies that used real clinical samples from 2011 to 2021 were analyzed. The results demonstrate the potential of the techniques in detecting viruses. Spectroscopic techniques, as well as chemometric techniques, were also explained. Viral diagnosis based on spectroscopy has interesting advantages compared to standard techniques such as: fast results, no need for reagents, non-destructiveness for the sample, no need for sample preparation, relatively low cost, among others. Several studies have corroborated the real possibility that, in the near future, we may have spectroscopic tools being successfully applied in viral diagnosis.

Publisher

IOS Press

Subject

Radiology, Nuclear Medicine and imaging

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