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. 2022 Feb 14;189(3):103. doi: 10.1007/s00604-022-05167-y

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© The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 7 — A The designed ACE2-based LFIA for the detection of SARS-CoV-2 spike 1 antigens [101]. B Lanthanide-doped nanoparticle-based LFIA for sensing of anti-SARS-CoV-2 IgG [102]