Abstract
For the first time, green-tea (GT)-based magnetic nanohydrogels were developed for drug-delivery purposes. The hydrogel matrices were fabricated via the in situ polymerization of acrylamide with GT molecules. Magnetic nanoparticles were synthesized by the reduction of the 1:2 molar ratio mixture of ferrous sulfate heptahydrate and ferric chloride hexahydrate with an ammonia solution. A chemotherapeutic drug, 5-fluorouracil, was chosen as a model drug, and its releasing profiles in the presence and absence of the external magnetic field were evaluated at a pH of 7.4. We observed that in the presence of the applied magnetic field, these magnetic nanohydrogels released 2.86% more drug than in the absence of a magnetic field. The magnetic nanohydrogels were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, vibrating sample magnetometry, and transmission electron microscopy.
Original language | English |
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Article number | APP43921 |
Journal | Journal of Applied Polymer Science |
Volume | 133 |
Issue number | 37 |
DOIs | |
State | Published - 2016 |
Externally published | Yes |
Bibliographical note
Funding Information:This research was supported by the National Research Foundation of Korea (contract grant number NRF-2015R1A3A2066301) and the author Kokkarachedu Varaprasad wishes to acknowledge the Programa de Atracción e Inserciun de Capital Humano Avanzado (PAI) Proyecto No. 781302011, CONICYT, Chile and the CIPA, CONICYT Regional PRFC0002.
Publisher Copyright:
© 2016 Wiley Periodicals, Inc.
ASJC Scopus subject areas
- General Chemistry
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry