Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles
Superparamagnetic magnetite nanoparticles are coated with homogeneous gold and silver shells using a simple aqueous based seed mediated method at room temperature with dopamine as a surfactant. Nanoparticles of Au in the range 2-3 nm are attached to amine functionalized Fe3O4 nanoparticles, acting...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society
2009
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| Online Access: | http://ir.unimas.my/id/eprint/9881/ http://ir.unimas.my/id/eprint/9881/1/Facile.pdf |
| _version_ | 1848836656651567104 |
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| author | Chin, S.F. K., Swaminathan Iyer Raston, Colin L. |
| author_facet | Chin, S.F. K., Swaminathan Iyer Raston, Colin L. |
| author_sort | Chin, S.F. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Superparamagnetic magnetite nanoparticles are coated with homogeneous gold and silver shells using a simple aqueous
based seed mediated method at room temperature with dopamine as a surfactant. Nanoparticles of Au in the range 2-3 nm are attached to amine functionalized Fe3O4 nanoparticles, acting as seed for the growth of ultrathin Au or Ag shells. The monodispersed core-shell nanoparticles Fe3O4@Au and Fe3O4@Ag have a particle size range of 10-13 nm with a shell thickness of approximately
2-3 nm. They are magnetically purified and are superparamagnetic at 300 K with saturated magnetization values of 41 and 35 emu g-1, respectively. |
| first_indexed | 2025-11-15T06:27:14Z |
| format | Article |
| id | unimas-9881 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:27:14Z |
| publishDate | 2009 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-98812022-01-20T01:36:24Z http://ir.unimas.my/id/eprint/9881/ Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles Chin, S.F. K., Swaminathan Iyer Raston, Colin L. QD Chemistry Superparamagnetic magnetite nanoparticles are coated with homogeneous gold and silver shells using a simple aqueous based seed mediated method at room temperature with dopamine as a surfactant. Nanoparticles of Au in the range 2-3 nm are attached to amine functionalized Fe3O4 nanoparticles, acting as seed for the growth of ultrathin Au or Ag shells. The monodispersed core-shell nanoparticles Fe3O4@Au and Fe3O4@Ag have a particle size range of 10-13 nm with a shell thickness of approximately 2-3 nm. They are magnetically purified and are superparamagnetic at 300 K with saturated magnetization values of 41 and 35 emu g-1, respectively. American Chemical Society 2009 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9881/1/Facile.pdf Chin, S.F. and K., Swaminathan Iyer and Raston, Colin L. (2009) Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles. Crystal Growth & Design, 9 (6). pp. 2685-2689. ISSN 1528-7505 http://www.researchgate.net/publication/231232512_Facile_and_Green_Approach_To_Fabricate_Gold_and_Silver_Coated_Superparamagnetic_Nanoparticles DOI: 10.1021/cg8013199 |
| spellingShingle | QD Chemistry Chin, S.F. K., Swaminathan Iyer Raston, Colin L. Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title | Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title_full | Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title_fullStr | Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title_full_unstemmed | Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title_short | Facile and Green Approach To Fabricate Gold and Silver Coated Superparamagnetic Nanoparticles |
| title_sort | facile and green approach to fabricate gold and silver coated superparamagnetic nanoparticles |
| topic | QD Chemistry |
| url | http://ir.unimas.my/id/eprint/9881/ http://ir.unimas.my/id/eprint/9881/ http://ir.unimas.my/id/eprint/9881/ http://ir.unimas.my/id/eprint/9881/1/Facile.pdf |