Layer-by-layer assembly of poly(lactic acid) nanoparticles : a facile way to fabricate films for model drug delivery

Layer-by-layer (LBL) films of poly(lactic acid) nanoparticles (PLA NPs) and poly(ethyleneimine) (PEI) were fabricated as a novel drug-delivery system. The PLA NPs, which encapsulated pyrene as a model drug, were prepared by nanoprecipitation methods. The assembly process of PLA NPs/PEI LBL films was...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 26(2010), 11 vom: 01. Juni, Seite 8270-3
1. Verfasser: Jiao, Yong-Hua (VerfasserIn)
Weitere Verfasser: Li, Yan, Wang, Shu, Zhang, Kai, Jia, Ying-Gang, Fu, Yu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Drug Carriers Polyesters Polymers Lactic Acid 33X04XA5AT poly(lactide) 459TN2L5F5
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520 |a Layer-by-layer (LBL) films of poly(lactic acid) nanoparticles (PLA NPs) and poly(ethyleneimine) (PEI) were fabricated as a novel drug-delivery system. The PLA NPs, which encapsulated pyrene as a model drug, were prepared by nanoprecipitation methods. The assembly process of PLA NPs/PEI LBL films was monitored by UV-vis spectroscopy, and the load of pyrene in the multilayer films was verified by fluorescence spectroscopy. The morphology of the PLA NPs/PEI LBL films was observed by SEM. The release profile of pyrene from the LBL films in PBS solutions was further studied, and the result indicated that the PLA NPs/PEI films were capable of sustainably releasing pyrene as expected. The fabrication of PLA NPs/PEI LBL films provides a new facile method for drug delivery and paves the way for loading multiple types of drugs into a single LBL film 
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700 1 |a Li, Yan  |e verfasserin  |4 aut 
700 1 |a Wang, Shu  |e verfasserin  |4 aut 
700 1 |a Zhang, Kai  |e verfasserin  |4 aut 
700 1 |a Jia, Ying-Gang  |e verfasserin  |4 aut 
700 1 |a Fu, Yu  |e verfasserin  |4 aut 
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