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. 2021 Mar 22;13(3):427. doi: 10.3390/pharmaceutics13030427

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© 2021 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 (http://creativecommons.org/licenses/by/4.0/).

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NIR fluorescence imaging of ex vivo organs after intravenous injection of HEK293T cell-derived exosomes and PEGylated liposomes. (A,B) Fluorescent signal intensity in each organ harvested at different time points after intravenous injection of DiR-labeled exosomes (A) and liposomes (B) into healthy mice. (C,D) Fluorescent signal intensity in each organ harvested at different time points after intravenous injection of DiR-labeled exosomes (C) and liposomes (D) into sepsis mice. The results represent mean ± SD (n = 5).