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. 2022 Mar 3;12(5):852. doi: 10.3390/nano12050852

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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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(a) EPR spectra of 0.001 Gd-TCP-pc. The black line corresponds to the time between pulses τ = 0.18 μs, and the red line corresponds to τ = 0.54 μs (increased in amplitude by a factor of 4); (b) EPR spectrum components differing in decay times T₂ of transverse magnetization. The component indicated by the blue line corresponds to T₂ = 0.19 ± 0.01 μs, and that indicated by the red line corresponds to T₂ = 1.0 ± 0.05 μs.