The solvothermal synthesis of magnetic iron oxide nanocrystals and the preparation of hybrid poly(L-lactide)-polyethyleneimine magnetic particles
- Authors
- Stojanovic, Zoran; Otonicar, Mojca; Lee, Jongwook; Stevanovic, Magdalena M.; Hwang, Mintai P.; Lee, Kwan Hyi; Choi, Jonghoon; Uskokovic, Dragan
- Issue Date
- Sep-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Magnetic iron oxides; Nanocrystals; Solvothermal synthesis; Surface functionalization; Polyethyleneimine; Poly(L-lactide)
- Citation
- COLLOIDS AND SURFACES B-BIOINTERFACES, v.109, pp 236 - 243
- Pages
- 8
- Journal Title
- COLLOIDS AND SURFACES B-BIOINTERFACES
- Volume
- 109
- Start Page
- 236
- End Page
- 243
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/43892
- DOI
- 10.1016/j.colsurfb.2013.03.053
- ISSN
- 0927-7765
1873-4367
- 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.
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