Study of the interactions between the surface chemisorbed layer and the surrounding media in magnetite-coated nanoparticles using Raman spectroscopy
Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9 nm diameter) dispersed in aqueous medium. In a first sample, the magnetite nanoparticle is coated with dextran. In a second sample the magnetite nanoparticle is double-coated with a dodecanoic layer following an etho...
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| Published in: | Journal of magnetism and magnetic materials Vol. 226; pp. 1890 - 1892 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
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Elsevier B.V
01-05-2001
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| Abstract | Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9
nm diameter) dispersed in aqueous medium. In a first sample, the magnetite nanoparticle is coated with dextran. In a second sample the magnetite nanoparticle is double-coated with a dodecanoic layer following an ethoxylated polyalcohol layer. The Raman measurements were focused on the typical intra-molecular OH-stretching mode chemiosorbed at the nanoparticle surface. The data are discussed in terms of the suppression of the symmetric and asymmetric hydrogen bonded mode in both samples. |
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| AbstractList | Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9
nm diameter) dispersed in aqueous medium. In a first sample, the magnetite nanoparticle is coated with dextran. In a second sample the magnetite nanoparticle is double-coated with a dodecanoic layer following an ethoxylated polyalcohol layer. The Raman measurements were focused on the typical intra-molecular OH-stretching mode chemiosorbed at the nanoparticle surface. The data are discussed in terms of the suppression of the symmetric and asymmetric hydrogen bonded mode in both samples. Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9nm diameter) dispersed in aqueous medium. In a first sample, the magnetite nanoparticle is coated with dextran. In a second sample the magnetite nanoparticle is double-coated with a dodecanoic layer following an ethoxylated polyalcohol layer. The Raman measurements were focused on the typical intra-molecular OH-stretching mode chemiosorbed at the nanoparticle surface. The data are discussed in terms of the suppression of the symmetric and asymmetric hydrogen bonded mode in both samples. copyright 2001 Elsevier Science B.V. All rights reserved. |
| Author | Gansau, C Morais, P.C Soler, M.A.G Buske, N da Silva, S.W |
| Author_xml | – sequence: 1 givenname: S.W surname: da Silva fullname: da Silva, S.W email: sebas@fis.unb.br organization: Universidade de Brası́lia, Instituto de Fı́sica, Fisica Aplicada, CEP 70919-970 Brası́lia-DF, Brazil – sequence: 2 givenname: M.A.G surname: Soler fullname: Soler, M.A.G organization: Universidade de Brası́lia, Instituto de Fı́sica, Fisica Aplicada, CEP 70919-970 Brası́lia-DF, Brazil – sequence: 3 givenname: C surname: Gansau fullname: Gansau, C organization: Mediport Kardiotechnik GmbH, Wiesenweg 10, D-12247 Berlin, Germany – sequence: 4 givenname: N surname: Buske fullname: Buske, N organization: Mediport Kardiotechnik GmbH, Wiesenweg 10, D-12247 Berlin, Germany – sequence: 5 givenname: P.C surname: Morais fullname: Morais, P.C organization: Universidade de Brası́lia, Instituto de Fı́sica, Fisica Aplicada, CEP 70919-970 Brası́lia-DF, Brazil |
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| Cites_doi | 10.1016/S0304-8853(99)00003-7 10.1063/1.480200 10.1021/bc00006a007 10.1063/1.475659 10.1021/jp993783n 10.1021/jp9937306 10.1016/S0304-8853(98)00568-X 10.1016/S0304-8853(98)00583-6 |
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| References | Carey, Korenowski (BIB8) 1998; 108 Hermetin, Doenges, Franssen, Bieva, Brugghen (BIB1) 1990; 1 Fanyao Qu, P.C. Morais, J. Phys. Chem. B 104 (2000) 5232. Kuznetsov, Filippov, Kuznetsov, Gerlivanov, Dobrinsky, Malashin (BIB2) 1999; 194 Morais, da Silva, Soler, Sousa, Tourinho (BIB6) 1999; 201 Morais, da Silva, Soler, Busk (BIB7) 2000; 104 Fanyao Qu, P.C. Morais, J. Chem. Phys. 111 (1999) 8588. Lacava, Azevedo, Lacava, Martins, Garcia, Rébola, Lemos, Sousa, Tourinho, Morais, Da Silva (BIB3) 1999; 194 L.M. Lacava, R.B. Azevedo, M.L.L. Freitas, L.P. Silva, V.A.P. Garcia, M.F. Da Silva, P.C. Morais, N. Buske, R. Curi, Z.G.M. Lacava, Biomaterials, submitted for publication. Morais (10.1016/S0304-8853(00)01385-8_BIB6) 1999; 201 Kuznetsov (10.1016/S0304-8853(00)01385-8_BIB2) 1999; 194 10.1016/S0304-8853(00)01385-8_BIB4 Hermetin (10.1016/S0304-8853(00)01385-8_BIB1) 1990; 1 10.1016/S0304-8853(00)01385-8_BIB5 10.1016/S0304-8853(00)01385-8_BIB9 Lacava (10.1016/S0304-8853(00)01385-8_BIB3) 1999; 194 Morais (10.1016/S0304-8853(00)01385-8_BIB7) 2000; 104 Carey (10.1016/S0304-8853(00)01385-8_BIB8) 1998; 108 |
| References_xml | – volume: 194 start-page: 22 year: 1999 ident: BIB2 publication-title: J. Magn. Magn. Mater. contributor: fullname: Malashin – volume: 194 start-page: 90 year: 1999 ident: BIB3 publication-title: J. Magn. Magn. Mater. contributor: fullname: Da Silva – volume: 1 start-page: 411 year: 1990 ident: BIB1 publication-title: Bioconjugate Chem. contributor: fullname: Brugghen – volume: 108 start-page: 2669 year: 1998 ident: BIB8 publication-title: J. Chem. Phys. contributor: fullname: Korenowski – volume: 201 start-page: 101 year: 1999 ident: BIB6 publication-title: J. Magn. Magn. Mater. contributor: fullname: Tourinho – volume: 104 start-page: 2894 year: 2000 ident: BIB7 publication-title: J. Phys. Chem. contributor: fullname: Busk – volume: 201 start-page: 101 year: 1999 ident: 10.1016/S0304-8853(00)01385-8_BIB6 publication-title: J. Magn. Magn. Mater. doi: 10.1016/S0304-8853(99)00003-7 contributor: fullname: Morais – ident: 10.1016/S0304-8853(00)01385-8_BIB4 doi: 10.1063/1.480200 – volume: 1 start-page: 411 year: 1990 ident: 10.1016/S0304-8853(00)01385-8_BIB1 publication-title: Bioconjugate Chem. doi: 10.1021/bc00006a007 contributor: fullname: Hermetin – volume: 108 start-page: 2669 year: 1998 ident: 10.1016/S0304-8853(00)01385-8_BIB8 publication-title: J. Chem. Phys. doi: 10.1063/1.475659 contributor: fullname: Carey – ident: 10.1016/S0304-8853(00)01385-8_BIB9 – ident: 10.1016/S0304-8853(00)01385-8_BIB5 doi: 10.1021/jp993783n – volume: 104 start-page: 2894 year: 2000 ident: 10.1016/S0304-8853(00)01385-8_BIB7 publication-title: J. Phys. Chem. doi: 10.1021/jp9937306 contributor: fullname: Morais – volume: 194 start-page: 22 year: 1999 ident: 10.1016/S0304-8853(00)01385-8_BIB2 publication-title: J. Magn. Magn. Mater. doi: 10.1016/S0304-8853(98)00568-X contributor: fullname: Kuznetsov – volume: 194 start-page: 90 year: 1999 ident: 10.1016/S0304-8853(00)01385-8_BIB3 publication-title: J. Magn. Magn. Mater. doi: 10.1016/S0304-8853(98)00583-6 contributor: fullname: Lacava |
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| Snippet | Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9
nm diameter) dispersed in aqueous medium. In a first sample, the magnetite... Raman spectroscopy is used to investigate surface-coated magnetite nanoparticles (9nm diameter) dispersed in aqueous medium. In a first sample, the magnetite... |
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| StartPage | 1890 |
| SubjectTerms | Magnetic fluids Raman scattering Spectroscopy Surface structure |
| Title | Study of the interactions between the surface chemisorbed layer and the surrounding media in magnetite-coated nanoparticles using Raman spectroscopy |
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