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Formulation Optimization of Indomethacin-loading Solid Lipid Nanoparticles by Box-Behnken Response Surface Methodology / 中国药房
China Pharmacy ; (12): 3118-3121, 2016.
Article in Chinese | WPRIM | ID: wpr-504852
ABSTRACT

OBJECTIVE:

To optimize the formulation of indomethacin-loading solid lipid nanoparticle(SLN).

METHODS:

Us-ing indomethacin as model drug,glyceryl behenate as oil phase,poloxamer 188 and polyethylene glycol-12-hydroxystearic acid as emulsifier,with turbidity,entrapment efficiency and drug loading amount as index,Box-Behnken response surface methodology was used to optimize the amount of oil phase,emulsifier-oil phase ratio,drug-oil phase ratio. The physicochemical properties of SLNs were characterized by SEM and DSC.

RESULTS:

The optimal formulation was as follows as oil phase of 0.91%,emulsifier-oil ratio of 1∶1,drug-oil phase ratio of 1∶5. The turbidity,entrapment efficiency and drug loading amount of prepared nanoparticle were 1 025-1 030 NTU,98.94%-99.08%,2.43%-2.46%,respectively;particle size and polydispersity index(PDI)were 181.5-182.3 nm and 0.340-0.341(n=3). The results of DSC showed that indomethacin was not present in crystalline state dispersed into SLNs.

CONCLUSIONS:

The optimal formulation is screened successfully,and indomethacin-loaded SLNs have been prepared.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2016 Type: Article