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Magnetic field-induced polymerization of molecularly imprinted polymers

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Urraca Ruiz, Javier and Cortés Llanos, Belén and Aroca, Claudio and Presa Muñoz del Toro, Patricia de la and Pérez García, Lucas and Moreno Bondi, Maria C. (2018) Magnetic field-induced polymerization of molecularly imprinted polymers. Journal of physical chemistry C, 122 (18). pp. 10189-10196. ISSN 1932-7447

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Official URL: http://dx.doi.org/10.1021/acs.jpcc.7b12804


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Abstract

In this work, we developed a novel approach for the preparation of molecularly imprinted polymer (MIP) coatings directly onto magnetic multicore nanoparticles (MMCs) using alternating magnetic fields to trigger the polymerization reaction. MIPs were synthesized with rhodamine 123 (R123) as model template molecule, methacrylic acid as functional monomer, and trimethylolpropane trimethacrylate as cross-linker. The amount of iron oxide nano particles and the composition of the polymerization mixture were optimized to enable the thermal polymerization of a thin MIP shell on each MMC using electromagnetic heating without altering the properties of the recognition layer. The thickness of the polymerized MIP layer grafted onto the MMCs was fine-tuned by adjusting the dose of electromagnetic field (101.4 kHz, total power dissipation = 105 W). The resulting magnetic multicore MIP nanoparticles (MMC-MIPs) were characterized by FT-R and X-ray diffraction spectroscopy, transmission electron microscopy, and dynamic light scattering.


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© Amer Chemical Soc.
This research work was funded by the Spanish Ministry of Economy and Competitiveness (MINECO) under projects CTQ2015-69278-C2-1R and MAT2015- 67557-C2-1-P). J.L. Urraca thanks CEI-Moncloa for a post-doctoral contract. B. Cortés-Llanos acknowledges funding from MINECO (FPI program). The authors thank the staff at Micronanofabs Facilities and J.L. Prieto for valuable discussions.

Uncontrolled Keywords:Quantum dots; Nanoparticles; Photopolymerization; Perspectives; Nanoflowers; Capacity; Hollow
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:48220
Deposited On:26 Jun 2018 17:43
Last Modified:10 May 2019 23:01

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