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Journal Article
Research Support, Non-U.S. Gov't
Supramolecular Host-Guest Interaction-Enhanced Adjustable Drug Release Based on β-Cyclodextrin-Functionalized Thermoresponsive Porous Polymer Films.
Langmuir : the ACS Journal of Surfaces and Colloids 2017 August 2
Drug delivery systems based on stimuli-responsive porous polymer films (PPFs) have been extensively investigated because of their many advantages. However, the ability to adjust the drug release from PPFs is not always perfect, and at times, it cannot satisfy real-world requirements. In this paper, supramolecular host-guest interactions were harnessed to overcome the difficulties associated with adjustable release from these systems by incorporating host molecules into the pore walls of thermoresponsive PPFs. β-Cyclodextrin-functionalized porous amphiphilic block copolymer films (β-CD-PBCPFs) with controllable pore parameters, high homogeneity, and large areas were prepared by combining the self-assembly and breath-figure methods. Drug-loaded β-CD-PBCPFs displayed thermoresponsive release behavior, which could be tuned by increasing the β-CD content in phosphate-buffered saline. The release was governed by the host-guest interactions of the β-CD moieties and drug molecules. The concept of host-guest interaction-enhanced adjustable release could be applied to different drug molecules, such as doxorubicin and metronidazole.
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