4.7 Article

Polyphenol-Poloxamer Self-Assembled Supramolecular Nanoparticles for Tumor NIRF/PET Imaging

期刊

ADVANCED HEALTHCARE MATERIALS
卷 7, 期 15, 页码 -

出版社

WILEY
DOI: 10.1002/adhm.201701505

关键词

NIRF; PET; self-assembly; supramolecular; tumor imaging

资金

  1. National Natural Science Foundation [31671035, 51473071, 21504034]
  2. Jiangsu Province Foundation [BK20170204, BK20161137, BE2016632]
  3. National Significant New Drugs Creation Program
  4. Jiangsu Provincial Medical Innovation Team [CXTDA2017024]

向作者/读者索取更多资源

Self-assembled supramolecular nanoparticles have remarkable benefits in bioimaging and drug delivery. Here it is first reported that polyphenol and poloxamer self-assemble supramolecular nanoparticles (PPNPs). PPNPs are fabricated by multivalent hydrogen bonding between tannic acid and Pluronic F-127 together with hydrophobic interactions of poly(propylene oxide) chains, to be applied in tumor near-infrared fluorescence (NIRF) imaging and positron emission tomography (PET) imaging. With near-infrared fluorescent dyes such as IR780 encapsulated via hydrophobic interactions, PPNPs are used in NIRF imaging. PPNPs with excess phenolic hydroxyl groups chelating positron emitting radionuclide Zr-89 function as a PET contrast agent. The in vivo results show surprisingly higher fluorescence intensity in tumors than in other tissues. In addition, PPNPs exhibit good biocompatibility in various cell lines and do not induce hemolysis in vitro. In this study, it is demonstrated that biodegradable and biocompatible PPNPs are an excellent bimodal contrast agent for in vivo tumor imaging.

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