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pH-Responsive Nanoscale Coordination Polymer for Efficient Drug Delivery and Real-Time Release Monitoring.

Authors
  • Han, Kai1
  • Zhang, Wei-Yun1
  • Zhang, Jin1
  • Ma, Zhao-Yu1
  • Han, He-You1
  • 1 State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China. , (China)
Type
Published Article
Journal
Advanced healthcare materials
Publication Date
Oct 01, 2017
Volume
6
Issue
19
Identifiers
DOI: 10.1002/adhm.201700470
PMID: 28714280
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Both excess dosages of drug and unwanted drug carrier can lead to severe side effects as well as the failure of tumor therapy. Here, an Fe3+ -gallic acid based drug delivery system is designed for efficient monitoring of drug release in tumor. Fe3+ and polyphenol gallic acid can form polygonal nanoscale coordination polymer in aqueous solution, which exhibits certain antitumor effect. Importantly, this coordination polymer possesses extremely high doxorubicin (DOX) loading efficacy (up to 48.3%). In vitro studies demonstrate that the fluorescence of DOX can be quenched efficiently when DOX is loaded on the coordination polymer. The acidity in lysosome also triggers the release of DOX and fluorescence recovery simultaneously, which realizes real-time monitoring of drug release in tumor cells. In vivo studies further indicate that this polyphenol-rich drug delivery system can significantly inhibit tumor growth with negligible heart toxicity of DOX. This system with minimal side effects should be a promising nanoplatform for tumor treatment. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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