Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques
The production of stable and homogeneous batches during nanoparticle fabrication is challenging. Surface charging, as a stability determinant, was estimated for 3-aminopropyltriethoxysilane (APTES) coated pre-formed magnetite nanoparticles (MNPs). An important consideration for preparing stable and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/12/3295 |
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| author | Gulzhian Dzhardimalieva Lyubov Bondarenko Erzsébet Illés Etelka Tombácz Nataliya Tropskaya Igor Magomedov Alexander Orekhov Kamila Kydralieva |
| author_facet | Gulzhian Dzhardimalieva Lyubov Bondarenko Erzsébet Illés Etelka Tombácz Nataliya Tropskaya Igor Magomedov Alexander Orekhov Kamila Kydralieva |
| author_sort | Gulzhian Dzhardimalieva |
| collection | DOAJ |
| description | The production of stable and homogeneous batches during nanoparticle fabrication is challenging. Surface charging, as a stability determinant, was estimated for 3-aminopropyltriethoxysilane (APTES) coated pre-formed magnetite nanoparticles (MNPs). An important consideration for preparing stable and homogenous MNPs colloidal systems is the dispersion stage of pre-formed samples, which makes it feasible to increase the MNP reactive binding sites, to enhance functionality. The results gave evidence that the samples that had undergone stirring had a higher loading capacity towards polyanions, in terms of filler content, compared to the sonicated ones. These later results were likely due to the harsh effects of sonication (extremely high temperature and pressure in the cavities formed at the interfaces), which induced the destruction of the MNPs. |
| first_indexed | 2024-03-10T03:26:23Z |
| format | Article |
| id | doaj.art-77d36c50bba14163a055db2337192098 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:26:23Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-77d36c50bba14163a055db23371920982023-11-23T09:50:37ZengMDPI AGNanomaterials2079-49912021-12-011112329510.3390/nano11123295Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion TechniquesGulzhian Dzhardimalieva0Lyubov Bondarenko1Erzsébet Illés2Etelka Tombácz3Nataliya Tropskaya4Igor Magomedov5Alexander Orekhov6Kamila Kydralieva7Department of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaDepartment of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaDepartment of Food Engineering, University of Szeged, 6720 Szeged, HungarySoós Ernő Water Technology Research and Development Center, University of Pannonia, 8800 Nagykanizsa, HungaryDepartment of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaDepartment of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaDepartment of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaDepartment of General Engineering, Moscow Aviation Institute, National Research University, 125299 Moscow, RussiaThe production of stable and homogeneous batches during nanoparticle fabrication is challenging. Surface charging, as a stability determinant, was estimated for 3-aminopropyltriethoxysilane (APTES) coated pre-formed magnetite nanoparticles (MNPs). An important consideration for preparing stable and homogenous MNPs colloidal systems is the dispersion stage of pre-formed samples, which makes it feasible to increase the MNP reactive binding sites, to enhance functionality. The results gave evidence that the samples that had undergone stirring had a higher loading capacity towards polyanions, in terms of filler content, compared to the sonicated ones. These later results were likely due to the harsh effects of sonication (extremely high temperature and pressure in the cavities formed at the interfaces), which induced the destruction of the MNPs.https://www.mdpi.com/2079-4991/11/12/3295silica-modified magnetite nanoparticlesdispersionzeta-potentialhydrodynamic sizepolyanions loading |
| spellingShingle | Gulzhian Dzhardimalieva Lyubov Bondarenko Erzsébet Illés Etelka Tombácz Nataliya Tropskaya Igor Magomedov Alexander Orekhov Kamila Kydralieva Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques Nanomaterials silica-modified magnetite nanoparticles dispersion zeta-potential hydrodynamic size polyanions loading |
| title | Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques |
| title_full | Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques |
| title_fullStr | Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques |
| title_full_unstemmed | Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques |
| title_short | Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques |
| title_sort | colloidal stability of silica modified magnetite nanoparticles comparison of various dispersion techniques |
| topic | silica-modified magnetite nanoparticles dispersion zeta-potential hydrodynamic size polyanions loading |
| url | https://www.mdpi.com/2079-4991/11/12/3295 |
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