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. 2018 May 18;35(7):144. doi: 10.1007/s11095-018-2425-2

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© The Author(s) 2018

Open Access This 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.

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Fig. 5 — Nuclear Magnetic Resonance Relaxometry and Magnetic Resonance Imaging: (a) The quantitative linear correlation between relaxation rates (R₁, R₂) and concentration of Fe-MIL-101-NH₂ in a suspension. (b) MR images of FeMIL-101-NH₂ showing the examples of positive (left image) and negative (right image) contrast due to differences in imaging sequence parameters (TR = 0.7 s, TE = 3.5 ms and TR = 3 s, TE = 21 ms respectively)