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Imprinted-like biopolymeric micelles as efficient nanovehicles for curcumin delivery

Journal name:Colloids and Surfaces B: Biointerfaces
Literature No.:
Literature Url: http://www.sciencedirect.com/science/article/pii/S0927776514004561
Date publication:1 November 2014


Imprinted-like biopolymeric micelles as efficient nanovehicles for curcumin delivery

Lili Zhang, Zeyou Qi, Qiyu Huang, Ke Zeng,Xiaoyi Sun, Juan Li , You-Nian Liu, , 

Abstract

To enhance the solubility and improve the bioavailability of hydrophobic curcumin, a new kind of imprinted-like biopolymeric micelles (IBMs) was designed. The IBMs were prepared via co-assembly of gelatin–dextran conjugates with hydrophilic tea polyphenol, then crosslinking the assembled micelles and finally removing the template tea polyphenol by dialysis. The obtained IBMs show selective binding for polyphenol analogous drugs over other drugs. Furthermore, curcumin can be effectively encapsulated into the IBMs with 5 × 104-fold enhancement of aqueous solubility. We observed the sustained drug release behavior from the curcumin-loaded IBMs (CUR@IBMs) in typical biological buffers. In addition, we found the cell uptake of CUR@IBMs is much higher than that of free curcumin. The cell cytotoxicity results illustrated that CUR@IBMs can improve the growth inhibition of HeLa cells compared with free curcumin, while the blank IBMs have little cytotoxicity. The in vivo animal study demonstrated that the IBMs could significantly

 (?)Epigallocatechin-3-gallate (EGCG, >99%) was obtained from Biopurify Phytochemicals Co. Ltd. (Chengdu, China).

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