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. 2019 Jul 8;17:81. doi: 10.1186/s12951-019-0511-1

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Physicochemical properties of magnetic nanoparticles functionalized by derivatives of PBP10 peptides. ATR/FT-IR spectra of PBP10 derivatives. a Spectra of peptides in non-immobilized form. b, c Spectra of derivatives of PBP10 peptides anchored on gold modified (b) and aminosilane coated-magnetic nanoparticles. d–f Thermal properties of evaluated compounds (d-thermogravimetric curves of peptides in free form and e, f—as immobilized on gold modified and aminosilane coated-magnetic nanoparticles respectively). TEM image of aminosilane coated (g) and gold modified (h) magnetic nanoparticles (Au nanoparticles on the nanoparticle surface are indicated by orange arrow). SEM images of Au coated magnetic nanoparticles (i). Analysis of element weight (j) and atomic structure (k) of gold modified magnetic nanoparticles. X-ray diffractogram of gold modified and aminosilane coated magnetic nanoparticles (l)