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Electrochemiluminescent nanostructured DNA biosensor for SARS-CoV-2 detection.
Gutiérrez-Gálvez, Laura; Del Caño, Rafael; Menéndez-Luque, Iris; García-Nieto, Daniel; Rodríguez-Peña, Micaela; Luna, Mónica; Pineda, Teresa; Pariente, Félix; García-Mendiola, Tania; Lorenzo, Encarnación.
  • Gutiérrez-Gálvez L; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
  • Del Caño R; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain; Departamento de Química Física y Termodinámica Aplicada e Instituto Universitario de Nanoquímica, Universidad de Córdoba, 14014, Córdoba, Spain.
  • Menéndez-Luque I; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
  • García-Nieto D; Instituto de Micro y Nanotecnología IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8. Tres Cantos, 28760, Madrid, Spain.
  • Rodríguez-Peña M; Instituto de Micro y Nanotecnología IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8. Tres Cantos, 28760, Madrid, Spain.
  • Luna M; Instituto de Micro y Nanotecnología IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8. Tres Cantos, 28760, Madrid, Spain.
  • Pineda T; Departamento de Química Física y Termodinámica Aplicada e Instituto Universitario de Nanoquímica, Universidad de Córdoba, 14014, Córdoba, Spain.
  • Pariente F; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
  • García-Mendiola T; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain; Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain. Electronic address: tania.garcia@uam.es.
  • Lorenzo E; Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049, Madrid, Spain; Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain; IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049, Madrid
Talanta ; 240: 123203, 2022 Apr 01.
Article in English | MEDLINE | ID: covidwho-1586445
ABSTRACT
This work focuses on the development of an electrochemiluminescent nanostructured DNA biosensor for SARS-CoV-2 detection. Gold nanomaterials (AuNMs), specifically, a mixture of gold nanotriangles (AuNTs) and gold nanoparticles (AuNPs), are used to modified disposable electrodes that serve as an improved nanostructured electrochemiluminescent platform for DNA detection. Carbon nanodots (CDs), prepared by green chemistry, are used as coreactants agents in the [Ru(bpy)3]2+ anodic electrochemiluminescence (ECL) and the hybridization is detected by changes in the ECL signal of [Ru(bpy)3]2+/CDs in combination with AuNMs nanostructures. The biosensor is shown to detect a DNA sequence corresponding to SARS-CoV-2 with a detection limit of 514 aM.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Biosensing Techniques / Nanostructures / Metal Nanoparticles / COVID-19 Limits: Humans Language: English Journal: Talanta Year: 2022 Document Type: Article Affiliation country: J.talanta.2021.123203

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Biosensing Techniques / Nanostructures / Metal Nanoparticles / COVID-19 Limits: Humans Language: English Journal: Talanta Year: 2022 Document Type: Article Affiliation country: J.talanta.2021.123203