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Nicollete, Diego Rinaldi Pavesi; Benedetti, Rafael; Valença, Beatriz Arruda; Kuniyoshi, Keyla Kaori; de Jesus, Thainá Caroline Schuartz; Gevaerd, Ava; Santiago, Erika Bergamo; de Almeida, Bernardo Montesanti Machado; Júnior, Sérgio Renato Rogal; Figueredo, Marcus Vinícius Mazega
Scientific reports, 03/2023, Letnik: 13, Številka: 1Journal Article
Lateral flow antigen tests have been widely used in the Covid-19 pandemic, allowing faster diagnostic test results and preventing further viral spread through isolation of infected individuals. Accomplishment of this screening must be performed with tests that show satisfactory sensitivity in order to successfully detect the target protein and avoid false negatives. The aim of this study was to create a lateral flow test that could detect SARS-CoV-2 nucleocapsid protein in low concentrations that were comparable to the limits of detection claimed by existing tests from the market. To do so, several adjustments were necessary during research and development of the prototypes until they were consistent with these criteria. The proposed alternatives of increasing the test line antibody concentration and addition of an intermembrane between the conjugate pad and the nitrocellulose membrane were able to increase the sensitivity four-fold and generate a new rapid test prototype called "lateral flow intermembrane immunoassay test" (LFIIT). This prototype showed an adequate limit of detection (2.0 ng mL ) while maintaining affordability and simplicity in manufacturing processes.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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