Please use this identifier to cite or link to this item:
|Title:||Multifunctional polyglycerol-grafted Fe3O4@SiO2 nanoparticles for targeting ovarian cancer cells||Authors:||Wang, L.
Iron oxide nanoparticles
|Issue Date:||Mar-2011||Citation:||Wang, L., Neoh, K.G., Kang, E.-T., Shuter, B. (2011-03). Multifunctional polyglycerol-grafted Fe3O4@SiO2 nanoparticles for targeting ovarian cancer cells. Biomaterials 32 (8) : 2166-2173. ScholarBank@NUS Repository. https://doi.org/10.1016/j.biomaterials.2010.11.042||Abstract:||Ligand-mediated magnetic resonance (MR) contrast agents would be highly desirable for cancer diagnosis. In the present study, nanoparticles of Fe3O4 core with fluorescent SiO2 shell were synthesized and grafted with hyperbranched polyglycerol (HPG-grafted Fe3O4@SiO2 nanoparticles). These nanoparticles have a hydrodynamic diameter of 47.0 ± 4.0 nm, and are very stable in aqueous solution as well as in cell culture medium. Numerous surface hydroxyl groups of these nanoparticles were conjugated with folic acid by a thiol 'click' reaction. The successful covalent attachment of folic acid on the nanoparticles was confirmed by FTIR and XPS analyses. Both MR imaging and fluorescence microscopy show significant preferential uptake of the folic acid-conjugated polyglycerol-grafted Fe3O4@SiO2 (FA-HPG-grafted Fe3O4@SiO2) nanoparticles by human ovarian carcinoma cells (SKOV-3) as compared to macrophages and fibroblasts. Such nanoparticles can potentially be used to provide real-time imaging in ovarian cancer resection. © 2010 Elsevier Ltd.||Source Title:||Biomaterials||URI:||http://scholarbank.nus.edu.sg/handle/10635/89513||ISSN:||01429612||DOI:||10.1016/j.biomaterials.2010.11.042|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 27, 2020
WEB OF SCIENCETM
checked on Feb 20, 2020
checked on Feb 28, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.