Innovative salicylic acid microsponges for sustained drug release

被引:0
|
作者
Zheng, Juanping [1 ]
Su, Junzhao [1 ]
Luo, Hongsheng [1 ]
Yang, Wenhui [1 ]
Yu, Tianhao [2 ]
机构
[1] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Peoples R China
[2] Jinan Univ, Affiliated Guangdong Prov Gen Hosp 2, Dept Cardiol, Guangzhou 510314, Guangdong, Peoples R China
关键词
Salicylic acid; Microsponges; Optimization; Sustained release; Hydrogel;
D O I
10.1016/j.matlet.2024.137875
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel salicylic acid microsponge was prepared using the quasi-emulsion solvent diffusion method. The yield, encapsulation efficiency, morphology, thermal properties, drug state, in vitro release, and application potential were systematically evaluated. The optimized microsponges demonstrated a yield of 84.92 % and an encapsulation efficiency of 68.69 %. The morphology of the microsponges exhibited a porous spherical structure. Additionally, the interaction between salicylic acid (SA) and ethyl cellulose (EC) enhanced the thermal stability of the microsponges and significantly reduced the crystallinity of SA. These microsponges exhibited excellent sustained release characteristics, enabling drug release for up to 78 h. Finally, combining the SA microsponges with the Carbopol 934 hydrogel system demonstrated favorable viscoelasticity, creep recovery, and stability, providing new insights for its application in dermatological treatments.
引用
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页数:4
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