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. 2014 Oct 23;9:4899–4909. doi: 10.2147/IJN.S69845

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© 2014 Wang et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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Transmission electron microscopic image of methotrexate-loaded biotinylated liposomes, composed of biotin-DSPE-PEG2000, dipalmitoyl phosphatidyl-glycerol, distearoyl phosphatidylcholine, and PEG4000, showing spherical morphology.

Note: Bar 100 nm.

Abbreviations: DSPE, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine; PEG, polyethylene glycol.