Web of Science: 44 citations, Scopus: 50 citations, Google Scholar: citations,
Lateral flow assay modified with time-delay wax barriers as a sensitivity and signal enhancement strategy
Sena Torralba, Amadeo (Institut Català de Nanociència i Nanotecnologia)
Ngo, Duy Ba (King Mongkut's University of Technology Thonburi. School of Bioresources and Technology)
Parolo, Claudio (Institut Català de Nanociència i Nanotecnologia)
Hu, Liming (Institut Català de Nanociència i Nanotecnologia)
Álvarez Diduk, Ruslan (Institut Català de Nanociència i Nanotecnologia)
Bergua Canudo, José Francisco (Institut Català de Nanociència i Nanotecnologia)
Rosati, Giulio (Institut Català de Nanociència i Nanotecnologia)
Surareungchai, Werasak (King Mongkut's University of Technology Thonburi. Nanoscience and Nanotechnology Graduate Research Program)
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Date: 2020
Abstract: The ease of use, low cost and quick operation of lateral flow assays (LFA) have made them some of the most common point of care biosensors in a variety of fields. However, their generally low sensitivity has limited their use for more challenging applications, where the detection of low analytic concentrations is required. Here we propose the use of soluble wax barriers to selectively and temporarily accumulate the target and label nanoparticles on top of the test line (TL). This extended internal incubation step promotes the formation of the immune-complex, generating a 51. 7-fold sensitivity enhancement, considering the limit of quantification, and up to 96% signal enhancement compared to the conventional LFA for Human IgG (H-IgG) detection.
Grants: Ministerio de Economía y Competitividad PCIN-2016-066
Ministerio de Economía y Competitividad MAT2017-87202-P
Ministerio de Economía y Competitividad SEV2201320295
Note: Altres ajuts: this work is also funded by the CERCA Program/Generalitat de Catalunya
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió sotmesa a revisió
Subject: Lateral flow ; Sensitivity enhancement ; Wax barrier ; Point-of-Care ; Optical biosensor
Published in: Biosensors & bioelectronics, Vol. 168 (Nov. 2020) , art. 112559, ISSN 1873-4235

DOI: 10.1016/j.bios.2020.112559


Preprint
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The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2021-01-25, last modified 2024-05-18



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