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Adv Mater. 2018 Dec;30(49):e1804693. doi: 10.1002/adma.201804693. Epub 2018 Oct 8.

Biomimetic Nanoemulsions for Oxygen Delivery In Vivo.

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Department of NanoEngineering and Moores Cancer Center, University of California San Diego, La Jolla, CA, 92093, USA.


Blood transfusion is oftentimes required for patients suffering from acute trauma or undergoing surgical procedures in order to help maintain the body's oxygen levels. The continued demand worldwide for blood products is expected to put significant strain on available resources and infrastructure. Unfortunately, efforts to develop viable alternatives to human red blood cells for transfusion are generally unsuccessful. Here, a hybrid natural-synthetic nanodelivery platform that combines the biocompatibility of the natural RBC membrane with the oxygen-carrying ability of perfluorocarbons is reported. The resulting formulation can be stored long-term and exhibits a high capacity for oxygen delivery, helping to mitigate the effects of hypoxia in vitro. In an animal model of hemorrhagic shock, mice are resuscitated at an efficacy comparable to whole blood infusion. By leveraging the advantageous properties of its constituent parts, this biomimetic oxygen delivery system may have the potential to address a critical need in the clinic.


biomimetic nanoparticles; blood substitutes; hemorrhagic shock; oxygen delivery; perfluorocarbon

[Available on 2019-12-01]
[Indexed for MEDLINE]

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