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. 2022 Nov 25;12(23):4181. doi: 10.3390/nano12234181

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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/).

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Chemical characterization of [¹⁷⁷Lu]Lu−iFAP/iPSMA nanoparticles formulated under GMP conditions (evaluation after the complete decay of ¹⁷⁷Lu). (a) Infrared spectra: (a1) Lu₂O₃ nanoparticles, (a2) iFAP, (a3) iPSMA, and (a4) Lu−iFAP/iPSMA; (b) size distribution of Lu−iFAP/iPSMA by TEM; (c) TEM micrograph of Lu−iFAP/iPSMA; (d) size distribution of Lu−iFAP/iPSMA by DLS (hydrodynamic diameter: particle diffusion within the fluid).