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The solvothermal synthesis of magnetic iron oxide nanocrystals and the preparation of hybrid poly(L-lactide)-polyethyleneimine magnetic particles

Title
The solvothermal synthesis of magnetic iron oxide nanocrystals and the preparation of hybrid poly(L-lactide)-polyethyleneimine magnetic particles
Author
최종훈
Keywords
Magnetic iron oxides; Nanocrystals; Solvothermal synthesis; Surface functionalization; Polyethyleneimine; Poly(L-lactide)
Issue Date
2013-09
Publisher
Elsevier Science B.V
Citation
Colloids and Surfaces B Biointerfaces, 2013, 109, P.1236-243
Abstract
We report a simple and green procedure for the preparation of magnetic iron oxide nanocrystals via solvothermal synthesis. The nanocrystal synthesis was carried out under mild conditions in the water-ethanol-oleic acid solvent system with the use of the oleate anion as a surface modifier of nanocrystals and glucose as a reducing agent. Specific conditions for homogenous precipitation achieved in such a reaction system lead to the formation of uniform high-quality nanocrystals down to 5 nm in diameter. The obtained hydrophobic nanocrystals can easily be converted to hydrophilic magnetic nanoparticles by being immobilized in a poly(L-lactide)-polyethyleneimine polymeric matrix. These hybrid nano-constructs may find various biomedical applications, such as magnetic separation, gene transfection and/or magnetic resonance imaging. (C) 2013 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0927776513002439
ISSN
0927-7765
DOI
10.1016/j.colsurfb.2013.03.053
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > ETC
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