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Article

pH-Sensitive Mixed Micelles Assembled from PDEAEMA-PPEGMA and PCL-PPEGMA for Doxorubicin Delivery: Experimental and DPD Simulations Study

1
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
2
Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
3
College of Yingdong Agricultural Science and Engineering, Shaoguan University, Shaoguan 512005, China
4
Guangdong Province Key Laboratory of Animal Nutritional Regulation, South China Agricultural University, Guangzhou 510642, China
*
Authors to whom correspondence should be addressed.
Pharmaceutics 2020, 12(2), 170; https://doi.org/10.3390/pharmaceutics12020170
Received: 29 December 2019 / Revised: 12 February 2020 / Accepted: 15 February 2020 / Published: 18 February 2020
To decrease critical micelle concentration (CMC), improve stability, and keep high drug-loading capacity, three pH-sensitive mixed micelles applied for anticancer drug controlled delivery were prepared by the mixture of polymers poly (N,N-diethylaminoethyl methacrylate)-b-poly(poly(ethylene glycol) methyl ether methacrylate) (PDEAEMA-PPEGMA) and polycaprolactone-b-poly (poly(ethylene glycol) methyl ether methacrylate) (PCL-PPEGMA), which were synthesized and confirmed by 1H NMR and gel permeation chromatographic (GPC). The critical micelle concentration (CMC) values of the prepared mixed micelles were low, and the micellar sizes and zeta potentials of the blank mixed micelles demonstrated good pH-responsive behavior. Combined experimental techniques with dissipative particle dynamics (DPD) simulation, the particle sizes, zeta potentials, drug loading content (LC), encapsulation efficiency (EE), aggregation morphologies, and doxorubicin (DOX) distribution of the mixed micelles were investigated, and the high DOX-loading capacity of the mixed micelles was found. Both in vitro DOX release profiles and DPD simulations of the DOX dynamics release process exhibited less leakage and good stability in neutral conditions and accelerated drug release behavior with a little initial burst in slightly acidic conditions. Cytotoxicity tests showed that the polymer PDEAEMA-PPEGMA and the blank mixed micelles had good biocompatibility, and DOX-loaded mixed micelles revealed certain cytotoxicity. These results suggest that the drug-loaded mixed micelles that consisted of the two polymers PDEAEMA-PPEGMA and PCL-PPEGMA can be new types of pH-responsive well-controlled release anticancer drug delivery mixed micelles. View Full-Text
Keywords: drug delivery system; pH-responsive; mixed micelles; dissipative particle dynamics simulation; well-controlled release drug delivery system; pH-responsive; mixed micelles; dissipative particle dynamics simulation; well-controlled release
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MDPI and ACS Style

Yang, C.; Liu, W.; Xiao, J.; Yuan, C.; Chen, Y.; Guo, J.; Yue, H.; Zhu, D.; Lin, W.; Tang, S.; Dong, X. pH-Sensitive Mixed Micelles Assembled from PDEAEMA-PPEGMA and PCL-PPEGMA for Doxorubicin Delivery: Experimental and DPD Simulations Study. Pharmaceutics 2020, 12, 170. https://doi.org/10.3390/pharmaceutics12020170

AMA Style

Yang C, Liu W, Xiao J, Yuan C, Chen Y, Guo J, Yue H, Zhu D, Lin W, Tang S, Dong X. pH-Sensitive Mixed Micelles Assembled from PDEAEMA-PPEGMA and PCL-PPEGMA for Doxorubicin Delivery: Experimental and DPD Simulations Study. Pharmaceutics. 2020; 12(2):170. https://doi.org/10.3390/pharmaceutics12020170

Chicago/Turabian Style

Yang, Chufen, Wenyao Liu, Jiayu Xiao, Cong Yuan, Yaoxi Chen, Jianwei Guo, Hangbo Yue, Dongyu Zhu, Wenjing Lin, Shengqiu Tang, and Xiaoying Dong. 2020. "pH-Sensitive Mixed Micelles Assembled from PDEAEMA-PPEGMA and PCL-PPEGMA for Doxorubicin Delivery: Experimental and DPD Simulations Study" Pharmaceutics 12, no. 2: 170. https://doi.org/10.3390/pharmaceutics12020170

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