Over several decades, poly
(lactic-co-glycolic acid) (PLGA) have been widely used as Micro-and
Nano-carriers of therapeutic agents for drug delivery applications. However,
encapsulation process of therapeutic agents into PLGA Nanoparticles (NPs)
necessitates a defined step to understand the effects and interactions of
parameters involved in production process. In pharmaceutics formulations, compared
to one factor at a time (OFAT) approach, statistical design of experiments
(DOE) supersedes OFAT approach due to limited number of experiments required to
investigate effects and interactions of a process parameters. The major
objectives of the present study were to: 1) prepare and understand
the effect of selected formulation parameters on particles size and drug
recovery of PLGA NPs encapsulating Ciprofloxacin Hydrochloride (Cip-HCl) using
a fractional factorial design (FFD) as a DOE approach; 2) understand the in-vitro release of Cip-HCl from PLGA NPs. Cip-HCl loaded PLGA were prepared by W1/O/W2 double
emulsion solvent evaporation (DESE) method using poly-vinyl alcohol as a
stabilizer. The Sizes of NPs were within 202 nm to 530 nm and percentage Cip-HCl
recovered from dried NPs were within 1.7% w/w to 15.7% w/w. Increasing
concentrations of PLGA and Cip-HCl was observed to increase NPs size.
Increasing PVA concentration was observed to either reduce or increase NPs
size. Increasing PLGA concentration was observed to increase the amount of
Cip-HCl recovered. Within 1-24
hours, optimized formulations shows a controlled release of Cip-HCl from PLGA
NPs.
Cite this paper
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