Highly-loaded protein nanocarriers prepared by Flash NanoPrecipitation with hydrophobic ion pairing
International Journal of Pharmaceutics(2021)
摘要
The efficient encapsulation of therapeutic proteins into delivery vehicles, particularly without loss of function, remains a significant research hurdle. Typical liposomal formulations achieve drug loadings on the order of 3–5% and encapsulation efficiencies around 50%. We demonstrate the encapsulation of model proteins with isoelectric points above and below pH 7 into nanocarriers (NCs) with protein loadings as high as 46% and encapsulation efficiencies above 95%. This is done by combining the continuous nanofabrication process Flash NanoPrecipitation (FNP) with the technique of hydrophobic ion pairing by forming and encapsulating an ionic complex within a nanocarrier stabilized by a block copolymer surface layer.
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关键词
Hydrophobic ion pairing,Ovalbumin,Lysozyme,Drug delivery,Nanocarrier,Flash NanoPrecipitation
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