Abstract |
A facile and efficient method was developed to prepare the monodisperse biodegradable PEGylated pH and reduction dual-stimuli sensitive poly[ methacrylic acid-co-poly( ethylene glycol) methyl ether methacrylate-co-N,N-bis(acryloyl) cystamine] (PMPB) nanohydrogels with dried particle size below 200 nm via one-step distillation precipitation polymerization as a drug delivery system (DDS) for the controlled release of a wide-spectrum anti- cancer drug, doxorubicin hydrochloride (DOX). Under normal physiological media, the nanohydrogels possessed high drug encapsulation efficiency (more than 96%) within 48 h and exhibited good stability with a trifle premature drug release. However, rapid DOX release was achieved at lower pH or in the presence of reductive reagent glutathione (GSH) with a cumulative release of more than 85% within 30 h. Furthermore, the nanohydrogels manifested nontoxicity on HepG2 cells at a concentration of 10 μg mL(-1) or lower. Based on the excellent characteristics of the nanohydrogels, such as low toxicity, impressive biodegradability, sharp dual responsiveness, adequate drug loading capacity and a high drug encapsulation efficiency, they were supposed to have potential application in the area of cancer therapy.
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Authors | Tingting Zhou, Xubo Zhao, Lei Liu, Peng Liu |
Journal | Nanoscale
(Nanoscale)
Vol. 7
Issue 28
Pg. 12051-60
(Jul 28 2015)
ISSN: 2040-3372 [Electronic] England |
PMID | 26118938
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antibiotics, Antineoplastic
- Delayed-Action Preparations
- Hydrogels
- Polyethylene Glycols
- Doxorubicin
- polyethylene glycol 1000
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Topics |
- Antibiotics, Antineoplastic
(chemistry, pharmacology)
- Delayed-Action Preparations
(chemical synthesis, chemistry, pharmacology)
- Doxorubicin
(chemistry, pharmacology)
- Drug Screening Assays, Antitumor
- Hep G2 Cells
- Humans
- Hydrogels
(chemical synthesis, chemistry, pharmacology)
- Hydrogen-Ion Concentration
- Nanoparticles
(chemistry)
- Polyethylene Glycols
(chemistry, pharmacology)
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