Magnetic nanocomposites with drug-intercalated layered double hydroxide shell supported on commercial magnetite and laboratory-made magnesium ferrite core materials

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• 作者：Ahmet Nedim Ay ; ^a ; ^{ay@hacettepe.edu.tr"" rel=""nofollow} ; Deniz Konuk^a ; Birg&#xfc ; l Z&#xfc ; mreoğ ; lu-Karan^a
• 关键词：Nanocomposites ; Core– ; shell structures ; Organic– ; inorganic hybrids ; Layered double hydroxides ; Intercalations
• 刊名：Materials Science and Engineering: C
• 出版年：2011
• 出版时间：20 July 2011
• 年：2011
• 卷：31
• 期：5
• 页码：851-857
• 全文大小：1296 K

文摘

Mg–Al-layered double hydroxide intercalated with a model drug, salicylate, was deposited on laboratory-made magnesium ferrite and commercial magnetite nanoparticles. The obtained core–shell nanocomposites have been characterized by a variety of methods. The combined information from X-ray diffraction patterns, electron diffraction patterns, FTIR spectra, X-ray photoelectron spectra, electron microscopy images, thermogravimetric analysis and microchemical analysis has indicated a similar nature and composition for the two samples. Magnetic measurements have revealed that although the inherent magnetization of magnetite was significantly higher, the nanocomposites displayed nearly similar magnetic properties.