کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1650707 | 1517336 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterization of magnetic nanoparticles embedded in microgels
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
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چکیده انگلیسی
This article describes the magnetically responsive microgel that consists of a small iron oxide magnetic nanoparticles (â¼Â 15 nm in diameter) embedded in a biocompatible microgel varying from â¼Â 65 to â¼Â 110 nm in diameter. These systems show great promise as active component of microscale and nanoscle devices and are expected to have wide applicability in various biomedical applications. Polymeric microgels have been prepared by emulsion free copolymerization of thermoresponsive N-isopropylacrylamide and acrylic acid with a water-soluble persulfate initiator. The obtained microgel magnetic composite particles possess a lower critical solution temperature (LCST) in water solutions, with a rapid decrease of the particle size being observed at elevated temperatures. The morphology and elemental composition of the composites were characterized by transmission electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy (FTIR).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 62, Issues 6â7, 15 March 2008, Pages 898-902
Journal: Materials Letters - Volume 62, Issues 6â7, 15 March 2008, Pages 898-902
نویسندگان
Aslam Khan,