Poly(lactic acid) scaffolds modified by gelatin for the controlled release of tetrandrine in vitro

To mimic natural extracellular matrix architecture, tetrandrine-loaded poly(L-lactic acid) scaffolds modified by gelatin were prepared via phase separation, solvent replacement and freeze-drying. The purpose of this work was to combine the biological effects of tetrandrine and the advantages of poly...

Повний опис

Збережено в:
Бібліографічні деталі
Дата:2017
Автор: Zhang Ye
Формат: Стаття
Мова:English
Опубліковано: НТК «Інститут монокристалів» НАН України 2017
Назва видання:Functional Materials
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Poly(lactic acid) scaffolds modified by gelatin for the controlled release of tetrandrine in vitro / Zhang Ye // Functional Materials. — 2017. — Т. 24, № 4. — С. 660-666. — Бібліогр.: 34 назв. — англ.

Репозитарії

Digital Library of Periodicals of National Academy of Sciences of Ukraine
Опис
Резюме:To mimic natural extracellular matrix architecture, tetrandrine-loaded poly(L-lactic acid) scaffolds modified by gelatin were prepared via phase separation, solvent replacement and freeze-drying. The purpose of this work was to combine the biological effects of tetrandrine and the advantages of poly(L-lactic acid) scaffolds which was modified by gelatin to enhancing the mass transfer features of controlled release systems. Tetrandrine contained in the scaffolds was confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared (FT-IR) spectroscopy. Tetrandrine did not change the morphous, crystallinity and thermodynamics of the scaffolds which demonstrated by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and X-ray powder diffractometry (XRD). The results of this study showed a sustained release with 79.15% for 188 days in vitro.