Facile approach for temperature-responsive polymeric nanocapsules with movable magnetic cores |
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| Authors: | Pengcheng DuBin Mu Yunjiao WangHuigang Shi Desheng XuePeng Liu |
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| Affiliation: | a State Key Laboratory of Applied Organic Chemistry and Institute of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Chinab Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | A novel facile approach was developed to prepare the well-defined temperature-responsive polymeric nanocapsules with movable magnetic cores (TPNMCs) based on the organic/inorganic sandwich-structured composite nanoparticles with temperature-responsive crosslinked shells via the one-pot approach surface-initiated atom transfer radical copolymerization (SI-ATRP) of N-isopropyl acrylamide (NIPAM) and N,N′-methylenebisacrylamide (MBA) from the surfaces of the Fe3O4@SiO2 core-shell nanoparticles, followed by the selective removal of the silica layer. Based on the temperature-induced volume phase transition and impressive magnetic response, the TPNMCs are expected to be used for the targeted controlled release of sensitive molecules, such as enzymes, proteins or DNA, by responding to the changing the environmental temperature. |
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| Keywords: | Microstructure Polymers Functional Magnetic materials Nanoparticles |
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