Journal
SOFT MATTER
Volume 9, Issue 2, Pages 370-373Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sm27116h
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Funding
- Program for New Century Excellent Talents in University [NCET-11-0582]
- Fundamental Research Funds for the Central Universities [FRF-TP-12-004B]
- National Natural Science Foundation of China [21074010 21025418, 51025313]
- Beijing Municipal Natural Science Foundation [2112029]
- Beijing Research Foundation for Excellent Talents [2010D009006000002]
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Multiple stimuli-responsive polymeric micelles that can respond to light, temperature and pH have been prepared by a novel polymer, pyrene-functionalized poly (dimethylaminoethyl methacrylate), where the pyrene-quaternized segments form a light-responsive shell and the unquaternized segments form a temperature/pH-responsive core. Under UV irradiation, the micelles could be dissociated; when the temperature increased above the lower critical solution temperature, the micelles shrunk. At pH 3, the micelles could be swelled/dissociated and at pH 10, the micelles could be collapsed to complex micelles. The controlled release of Nile Red from the micelle under stimuli was demonstrated. This novel multiple stimuli-responsive micelle shows potential as a new nanocarrier and delivery system.
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