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. 2022 Sep 9;12(9):743. doi: 10.3390/bios12090743

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

(a) Schematic of the surface plasmon (electronic cloud) resonated due to the electric field. (Reprinted with permission [51]. Copyright © 2016, The Author(s). Licensee: IntechOpen.) (b) Steps in a typical SPR method. (Reprinted with permission [49] Copyright © 2020 by the authors. Licensee MDPI, Basel, Switzerland).

(a) Schematic of the surface plasmon (electronic cloud) resonated due to the electric field. (Reprinted with permission [51]. Copyright © 2016, The Author(s). Licensee: IntechOpen.) (b) Steps in a typical SPR method. (Reprinted with permission [49] Copyright © 2020 by the authors. Licensee MDPI, Basel, Switzerland).