Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications
Objective(s): This paper describes coating of magnetite nanoparticles (MNPs) with amorphous silica shells. Materials and Methods: First, magnetite (Fe3O4) NPs were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility....
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| Format: | Article |
| Language: | English |
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Mashhad University of Medical Sciences
2013-09-01
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| Series: | Nanomedicine Journal |
| Subjects: | |
| Online Access: | http://nmj.mums.ac.ir/?_action=showPDF&article=1700&_ob=6e0f80cde9012ab7105357800abdefa7&fileName=full_text.pdf |
| _version_ | 1818484604044050432 |
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| author | Narges Ghows Mahmoud Rezaee Roknabadi Nasser Shahtahmassebi Mitra Helmi Rashid Farimani |
| author_facet | Narges Ghows Mahmoud Rezaee Roknabadi Nasser Shahtahmassebi Mitra Helmi Rashid Farimani |
| author_sort | Narges Ghows |
| collection | DOAJ |
| description | Objective(s): This paper describes coating of magnetite nanoparticles (MNPs) with amorphous silica shells. Materials and Methods: First, magnetite (Fe3O4) NPs were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility. Afterwards, coating with silica was carried out via a sol-gel approach in which the electrostatically stabilized MNPs were used as seeds. The samples were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy and vibrating sample magnetometer (VSM). Results: The results of XRD analysis implied that the prepared nanocomposite consists of two compounds of crystalline magnetite and amorphous silica that formation of their core/shell structure with the shell thickness of about 5 nm was confirmed by TEM images. The magnetic studies also indicated that produced Fe3O4@SiO2 core/shell nanocomposite exhibits superparamagnetic properties at room temperature. Conclusion: These core/shell structure due to having superparamagnetic property of Fe3O4 and unique properties of SiO2, offers a high potential for many biomedical applications. |
| first_indexed | 2024-12-10T15:57:22Z |
| format | Article |
| id | doaj.art-93f2db5aa785428ab3014463cba02386 |
| institution | Directory Open Access Journal |
| issn | 2322-3049 2322-5904 |
| language | English |
| last_indexed | 2024-12-10T15:57:22Z |
| publishDate | 2013-09-01 |
| publisher | Mashhad University of Medical Sciences |
| record_format | Article |
| series | Nanomedicine Journal |
| spelling | doaj.art-93f2db5aa785428ab3014463cba023862022-12-22T01:42:36ZengMashhad University of Medical SciencesNanomedicine Journal2322-30492322-59042013-09-01127178Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applicationsNarges GhowsMahmoud Rezaee RoknabadiNasser ShahtahmassebiMitra Helmi Rashid FarimaniObjective(s): This paper describes coating of magnetite nanoparticles (MNPs) with amorphous silica shells. Materials and Methods: First, magnetite (Fe3O4) NPs were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility. Afterwards, coating with silica was carried out via a sol-gel approach in which the electrostatically stabilized MNPs were used as seeds. The samples were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy and vibrating sample magnetometer (VSM). Results: The results of XRD analysis implied that the prepared nanocomposite consists of two compounds of crystalline magnetite and amorphous silica that formation of their core/shell structure with the shell thickness of about 5 nm was confirmed by TEM images. The magnetic studies also indicated that produced Fe3O4@SiO2 core/shell nanocomposite exhibits superparamagnetic properties at room temperature. Conclusion: These core/shell structure due to having superparamagnetic property of Fe3O4 and unique properties of SiO2, offers a high potential for many biomedical applications.http://nmj.mums.ac.ir/?_action=showPDF&article=1700&_ob=6e0f80cde9012ab7105357800abdefa7&fileName=full_text.pdfMagnetiteSilicaCore-shell structureSuperparamagnetismBiomedical applications |
| spellingShingle | Narges Ghows Mahmoud Rezaee Roknabadi Nasser Shahtahmassebi Mitra Helmi Rashid Farimani Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications Nanomedicine Journal Magnetite Silica Core-shell structure Superparamagnetism Biomedical applications |
| title | Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications |
| title_full | Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications |
| title_fullStr | Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications |
| title_full_unstemmed | Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications |
| title_short | Synthesis and study of structural and magnetic properties of superparamagnetic Fe3O4@SiO2 core/shell nanocomposite for biomedical applications |
| title_sort | synthesis and study of structural and magnetic properties of superparamagnetic fe3o4 sio2 core shell nanocomposite for biomedical applications |
| topic | Magnetite Silica Core-shell structure Superparamagnetism Biomedical applications |
| url | http://nmj.mums.ac.ir/?_action=showPDF&article=1700&_ob=6e0f80cde9012ab7105357800abdefa7&fileName=full_text.pdf |
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