Journal
JOURNAL OF MICROENCAPSULATION
Volume 22, Issue 6, Pages 593-601Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02652040500162659
Keywords
surfactant-free; nanoparticles; poly(DL-lactide-co-glycolide); cryoprotectants; reconstitution
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Various cryoprotectants were tested to reconstitute the surfactant-free nanoparticles of poly(DL-lactide-co-glycolide) ( PLGA). When 2.0% (w/v) of sucrose, trehalose and lactose were used, nanoparticles were completely reconstituted into aqueous solution and particle size was not significantly changed. Above 1.0% (w/v) of sucrose, trehalose and lactose, nanoparticles are well reconstituted whereas it was precipitated with 1.0% (w/v) of mannitol. Drug-encapsulated surfactant-free nanoparticles were quite reconstituted when 2.0% (w/v) of sucrose, trehalose and lactose. Drug release kinetics of nanoparticles was not significantly changed by cryoprotectants.
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