Investigation on the Preparation, Characteristics, and Controlled Release Model of Paeonol-Loaded Liposome in Carbomer Hydrogel

Author(s): Qinqin Liu, Hongmei Xia*, Yinxiang Xu, Yongfeng Cheng, Zhiqing Cheng.

Journal Name: Current Drug Delivery

Volume 17 , Issue 2 , 2020

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Objective: Paeonol was small molecular and easy volatile. In order to decrease its volatility and realize the controlled release, paeonol-loaded liposome in carbomer hydrogel was prepared by coating with soybean phospholipid via ethanol injection method and then added into the carbomer hydrogel.

Methods: The quality of paeonol-loaded liposome in carbomer hydrogel was evaluated by the degree of roundness, particle size distribution, zeta potential, entrapment efficiency (filtration method and chitosan neutralization method), viscosity, infrared spectrum, etc. Furthermore, the diffusion from paeonol-loaded liposome in hydrogel was studied in vitro.

Results: The results showed that the average particle size of paeonol-loaded liposome was about 401 nm, the potential was -17.8 mV, and the entrapment efficiency was above 45%. The viscosity of paeonol-loaded liposome in hydrogel was 23.972×10-3 Pa*s, and the diffusion rate from paeonol-loaded liposome in hydrogel in vitro was obviously slower than that from the other paeonol preparations.

Conclusion: The conclusions could be draw that paeonol-loaded liposome in hydrogel was a kind of novel preparation, and its diffusion in vitro had obvious controlled-release characteristics, which further proved that it might improve the bioavailability of paeonol.

Keywords: loaded liposome in hydrogel, content determination, entrapment efficiency, infrared spectrum, diffusion in vitro.

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Article Details

Year: 2020
Page: [159 - 173]
Pages: 15
DOI: 10.2174/1567201817666200115163506
Price: $95

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