کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5435109 | 1509145 | 2017 | 7 صفحه PDF | دانلود رایگان |
- A redox-responsive supramolecular hydrogel system was developed for delivering 10-hydroxy camptothecin (HCPT).
- The hydrogel was formed by a biocompatible of cleaving disulfide bond.
- The drug loading efficiency of the hydrogel was >Â 6.6Â mg/mL.
- The hydrogel possessed recovery and shear-shinning properties and could be used as injectable drug delivery system.
- The hydrogel had a significantly sustained-release characteristic and possessed a favorable anticancer efficacy.
A redox-responsive supramolecular hydrogel system was developed for delivering 10-hydroxy camptothecin (HCPT). The hydrogel was formed by cleaving disulfide bond. The combination of hydrophobic HCPT with hydrogel was a simple and effective way to improve the solubility of HCPT and the drug loading capacity of delivery system. The transmission electron microscopy (TEM) image revealed the self-assembled hydrogel was long and thin nanofibers with a width of <Â 10Â nm. Rheological test verified the hydrogel had fine physical properties. In vitro release experiment showed that the accumulative releasing percentages within 72Â h of HCPT-peptide hydrogels at 3.0%, 4.0%, 5.0% were 16.8%, 21.3%, and 26.8% respectively, which indicated the HCPT-peptide hydrogels had a significantly sustained-release characteristic. Besides, in vitro anticancer assay showed that HCPT-peptide hydrogels possessed a favorable anticancer efficacy. These results indicated that HCPT-peptide hydrogel had great potential for cancer treatment as a novel injectable drug delivery system.
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Journal: Materials Science and Engineering: C - Volume 76, 1 July 2017, Pages 196-202