Hyaluronic acid as an internal phase additive to obtain ofloxacin/PLGA microsphere by double emulsion method.

Abstract:

:Hyaluronic acid (HA) was used as an internal phase additive to improve the loading efficiency of ofloxacin, a hydrophilic drug encapsulated by hydrophobic polylactic-co-glycolic acid (PLGA) materials, through a double emulsion (water-in-oil-in-water) solvent extraction/evaporation method. Results from laser distribution analysis show that polyelectrolyte additives have low impact on the average particle size and distribution of the microspheres. The negatively charged HA increases the drug loading efficiency as well as the amount of HA in microspheres. Burst release can be observed in the groups with the polyelectrolyte additives. The release rate decreases with the amount of HA inside the microspheres in all negatively charged polyelectrolyte-added microsphere groups.

journal_name

Biomed Mater Eng

authors

Wu G,Chen L,Li H,Wang YJ

doi

10.3233/BME-130863

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

751-6

issue

1

eissn

0959-2989

issn

1878-3619

pii

A5G380P38011K314

journal_volume

24

pub_type

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