Journal
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
Volume 35, Issue 2, Pages 353-358Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s40242-019-8203-9
Keywords
Layer-by-layer; High load; Calcium carbonate template; pH-Controlled release
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Funding
- National Natural Science Foundation of China [21673209]
- Fundamental Research Funds for the Central Universities of China [2652015295, 2652017359]
- Student's Platform for Innovation and Entrepreneurship Training Program, China [201711415036]
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Enhancing the molecular loading capability of layer-by-layer(LbL) method holds high importance in environmental and biomedical application. Here, we reported a strategy to prepare highly loaded poly(acrylic acid)(PAA)/poly(allylamine hydrochloride)(PAH) LbL films by combining the particulate templating strategy and acid treatment film transformation and realized the efficient loading of hydrophilic small molecules. The loaded molecules can be released in a pH-controlled manner. A slow release speed was observed in the acidic solutions with pH value of 3. Abrupt releases were observed at higher pH values(5 or 7).
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