期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 8, 页码 3099-3105出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201914331
关键词
carbon dots; fluorescence; magnetic hyperthermia; wound healing
资金
- National Natural Science Foundation of China [21736006, 21908103, 21706122]
- National Key Research and Development Program of China [2016YFB0401700, 2018YFC1602800]
- Natural Science Foundation of Jiangsu Province [BK20190672]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Fund of State Key Laboratory of Material-Oriented Chemical Engineering [ZK201704]
The intrinsic low yield of carbon dots (CDs) is a barrier that limits practical application. Now, a magnetic hyperthermia (MHT) method is used to synthesize fluorescent CDs on a large scale (up to 85 g) in one hour (yield ca. 60 %). The reaction process is intensified by MHT since the efficient heating system enhances the energy transfer. CDs with blue, green, and yellow luminescence are synthesized by using carbamide and citrate with three different cations (Zn2+, Na+, K+), respectively. The CDs exhibit bright fluorescence under UV light and show excellent monodispersity and solubility in water. The alternation of photoluminescence (PL) emissions of these CDs is probably due to the difference in particle sizes and surface state. A bar coating technique is used to construct large-area emissive polymer/CDs films. CDs can insert themselves into the polymer chains by hydrogen bonding and electrostatic interactions. Wound healing efficiency can be enhanced by the Zn-CDs/PCL nanofibrous scaffold.
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