Fabrication of Triple-Layered Magnetite-Hydrogel-Gold Nanocomposites for Biomedical Applications
- Authors
- Lim, Sera; Lee, Sang-Wha
- Issue Date
- Feb-2012
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Hydrogel; Magnetite; Gold; Nanoshell; Diamine
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.2, pp.1242 - 1245
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 12
- Number
- 2
- Start Page
- 1242
- End Page
- 1245
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/16615
- DOI
- 10.1166/jnn.2012.4626
- ISSN
- 1533-4880
- Abstract
- Magnetite-hydrogel-gold nanocomposites with optical-active, thermo-responsive, and magnetism have been prepared by the following consecutive steps. Hydrogel-encapsulated magnetites were first synthesized by the combination of sol gel reaction and radical polymerization process, and the resulting magnetic hydrogels were subsequently bound with nano-sized Au (1 similar to 3 nm) via a molecular linkage of diamine ligand which was covalently bonded to the carboxylic groups on the hydrogel surface. Au seeds anchored on the magnetic hydrogels were further reduced into nano-scale Au layer which induced the distinct red-shift of absorption band into NIR region. The optical properties and surface morphology of the nanocomposites were characterized by UV-vis spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM).
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Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
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