Abstract
The intercalation of a non-ionic and poorly water-soluble drug, camptothecin(CPT), into dodecyl sulfate (DS) modified layered double hydroxide(LDH) was carried out via a secondary intercalation method to obtain a CPT-DS-LDH hybrid. The in vitro CPT release eFxaminations from the hybrid show that the hybrid can well control the release of CPT, which indicates that the hybrid is a potential drug controlled-release system. Moreover, the intercalation kinetics of CPT into the DS modified LDH fits for the pseudo-second-order model. And the release kinetic process of CPT from the CPT-DS-LDH hybrid at pH=4.8 can be described with pseudo-first-order model, while that at pH=7.2 can be described with both pseudo-first-order model and pseudo-second-order model. Meanwhile, the release mechanism of CPT from the CPT-DS-LDH hybrid was discussed.
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Supported by the National Natural Science Foundation of China(No.21173135) and the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20110131130008).
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Li, Y., Du, N., Hou, W. et al. Synthesis and release behavior of a hybrid of camptothecin intercalated dodecyl sulfate modified layered double hydroxide. Chem. Res. Chin. Univ. 30, 137–143 (2014). https://doi.org/10.1007/s40242-014-3284-y
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DOI: https://doi.org/10.1007/s40242-014-3284-y