期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 16, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/s11051-014-2769-4
关键词
Nanocrystal; Microreactor; Colloids; Photonic crystal; Assembly; Microfluidic; Synthesis
资金
- National High Technology Research and Development Program of China (863 Program) [2012AA030313]
- National Natural Science Foundation of China [21076103]
- Natural Science Foundation of Jiangsu Province [BK20140934]
- Industrial Project in the Science and Technology Pillar Program of Jiangsu Province [BE2012181]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Versatile hydrogel-based nanocrystal (NC) microreactors were designed in this work for the construction of uniform fluorescence colloidal photonic crystal (CPC) supraballs. The hydrogel-based microspheres with sizes ranging from 150 to 300 nm were prepared by seeded copolymerization of acrylic acid and 2-hydroxyethyl methacrylate with micrometer-sized PS seed particles. As an independent NC microreactor, the as-synthesized hydrogel microsphere can effectively capture the guest cadmium ions due to the abundant carboxyl groups inside. Followed by the introduction of chalcogenides, in situ generation of higher-uptake NCs with sizes less than 5 nm was finally realized. Additionally, with the aid of the microfluidic device, the as-obtained NC-latex hybrids can be further self-assembled to bi-functional CPC supraballs bearing brilliant structural colors and uniform fluorescence. This research offers an alternative way to finely bind CPCs with NCs, which will facilitate progress in fields of self-assembled functional colloids and photonic materials.
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