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- W3199403453 startingPage "101709" @default.
- W3199403453 abstract "Liposomes are known to be one of the most promising drug delivery systems for carrying and delivering biopharmaceuticals. Yet, both liposomes and biopharmaceuticals are susceptible to destabilization during storage, and thus require cold supply and efficient distribution chains. This drawback can be overcome, though, by converting liposomal suspension into solid form dosage capable of administration via different routes, including the lungs. In this work, we present a synergy between pharmaceutical and supercritical carbon dioxide technologies to assist in liposome drying. Liposomes, encapsulating 5(6)- carboxyfluorescein (CF) as a marker of the internal aqueous phase, were produced and then dried using supercritical CO2 - assisted spray-drying (SASD). CF-loaded liposomal dry powder formulations were thus obtained. After resuspension in water to remove the trehalose, the liposomes maintained their structure and the CF encapsulation efficiency remained above 95 %. To optimize the process, a quality-by-design approach using the design of experiments tool was used. Then, the powders were submitted to storage stability assays at relative humidity of 4 %, 50 % and 78 % for 30 days. Results showed that the dry powder formulations were able to maintain liposome stability at relative humidity of 4 % and 50 % at 20 °C for 30 days." @default.
- W3199403453 created "2021-09-27" @default.
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- W3199403453 date "2021-11-01" @default.
- W3199403453 modified "2023-10-17" @default.
- W3199403453 title "Inhalable hydrophilic molecule-loaded liposomal dry powder formulations using supercritical CO2 – assisted spray-drying" @default.
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- W3199403453 doi "https://doi.org/10.1016/j.jcou.2021.101709" @default.
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