ArticleMikrochimica acta2024
Nanoplasmonic microarray-based solid-phase amplification for highly sensitive and multiplexed molecular diagnostics: application for detecting SARS-CoV-2.
Article in Mikrochimica acta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Enzyme-Triggered In Situ Assembly of FeBiosensors · 2026Article
- Simultaneous and sensitive detection ofFrontiers in bioengineering and biotechnology · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
A novel approach is introduced using nanoplasmonic microarray-based solid-phase recombinase polymerase amplification (RPA) that offers high sensitivity and multiplexing capabilities for gene detection. Nanoplasmonic microarrays were developed through one-step immobilization of streptavidin/biotin primers and fine-tuning the amplicon size to achieve high plasmon-enhanced fluorescence (PEF) on the nanoplasmonic substrate, thereby improving sensitivity. The specificity and sensitivity of solid-phase RPA on nanoplasmonic microarrays was evaluated in detecting E, N, and RdRP genes of SARS-CoV-2. High specificity was achieved by minimizing primer-dimer formation and employing a stringent washing process and high sensitivity obtained with a limit of detection of four copies per reaction within 30 min. In clinical testing with nasopharyngeal swab samples (n = 30), the nanoplasmonic microarrays demonstrated a 100% consistency with the PCR results for detecting SARS-CoV-2, including differentiation of Omicron mutations BA.1 and BA.2. This approach overcomes the sensitivity issue of solid-phase amplification, as well as offers rapidity, high multiplexing capabilities, and simplified equipment by using isothermal reaction, making it a valuable tool for on-site molecular diagnostics.
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