期刊
POLYMER CHEMISTRY
卷 7, 期 7, 页码 1405-1412出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5py01742d
关键词
-
资金
- National Natural Science Foundation of China [51273189]
- Ministry of Science and Technology of China [2011ZX05010-003]
Stimuli-triggered degradable hydrogels have found broad applications in controlled release of drugs, fragrances, flavourings and fertilizers. Recently, multi-stimuli responsive micelle-based hydrogels have gained focus, since they could respond to a combination of external stimuli. Herein, a multi-stimuli responsive supramolecular hydrogel with great potential for biomedical application was prepared, which was composed of the micelle-forming diblock copolymer poly[(N-isopropylacrylamide-co-2-nitrobenzyl acrylate)-block-(N, N-dimethylacrylamide-co-acrylic acid)] (P(NIPAM-co-NBA)-b-P(DMA-co-AA)), and physically cross-linked by supramolecular complexation between AA groups and ferric ions (Fe3+), exhibiting gel-sol transition caused by UV irradiation, multidentate ligands (EDTA) and redox agents (Na2S2O4).
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