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. 2021 Oct 14;42(12):1699–1705. doi: 10.1002/bkcs.12418

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© 2021 Korean Chemical Society, Seoul & Wiley‐VCH GmbH

This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

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(a) (i) Sequential process for fabricating a surface‐enhanced Raman scattering (SERS) nanotag and (ii) antibody immobilization on the surface of a magnetic bead. (b) Dynamic light scattering distributions of hollow Au nanostars (HAuNS; black) and SERS nanotags (red). (c) UV–Vis absorption spectra for HAuNSs (black) and SERS nanotags (red). (d) Identification of antibodies immobilized on the surface of magnetic beads using horseradish peroxidase‐labeled secondary antibodies. UV–Vis measurement data of antibody‐immobilized magnetic beads (left) and bare magmatic beads (right)