Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes
Positively charged water-solid interfaces are prepared by adsorption of a cationic polyelectrolyte poly(diallyldimethylammonium chloride) (PDADMAC) from aqueous solutions to planar silica substrates. These substrates are characterized by atomic force microscopy (AFM), optical reflectivity, and strea...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Colloids and Interfaces |
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| Online Access: | https://www.mdpi.com/2504-5377/5/2/26 |
| _version_ | 1797535511745658880 |
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| author | Dominik Kosior Plinio Maroni Michal Borkovec |
| author_facet | Dominik Kosior Plinio Maroni Michal Borkovec |
| author_sort | Dominik Kosior |
| collection | DOAJ |
| description | Positively charged water-solid interfaces are prepared by adsorption of a cationic polyelectrolyte poly(diallyldimethylammonium chloride) (PDADMAC) from aqueous solutions to planar silica substrates. These substrates are characterized by atomic force microscopy (AFM), optical reflectivity, and streaming current measurements. By tuning the amount of adsorbed polyelectrolyte, the surface charge of the substrate can be systematically varied. These substrates are further used to study deposition of sulfate latex nanoparticles, which is also accomplished by optical reflectivity. This deposition process is found to be consistent with an extension of the random sequential adsorption (RSA) model in a semi-quantitative fashion. Such deposition studies were further used to ascertain that the substrates obtained by in situ and ex situ functionalization behave in an identical fashion. |
| first_indexed | 2024-03-10T11:45:44Z |
| format | Article |
| id | doaj.art-e584defa40dd4471a3d2cba850a791b5 |
| institution | Directory Open Access Journal |
| issn | 2504-5377 |
| language | English |
| last_indexed | 2024-03-10T11:45:44Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Colloids and Interfaces |
| spelling | doaj.art-e584defa40dd4471a3d2cba850a791b52023-11-21T18:08:05ZengMDPI AGColloids and Interfaces2504-53772021-05-01522610.3390/colloids5020026Particle Deposition to Silica Surfaces Functionalized with Cationic PolyelectrolytesDominik Kosior0Plinio Maroni1Michal Borkovec2Department of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, 30 Quai Ernest-Ansermet, 1205 Geneva, SwitzerlandDepartment of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, 30 Quai Ernest-Ansermet, 1205 Geneva, SwitzerlandDepartment of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, 30 Quai Ernest-Ansermet, 1205 Geneva, SwitzerlandPositively charged water-solid interfaces are prepared by adsorption of a cationic polyelectrolyte poly(diallyldimethylammonium chloride) (PDADMAC) from aqueous solutions to planar silica substrates. These substrates are characterized by atomic force microscopy (AFM), optical reflectivity, and streaming current measurements. By tuning the amount of adsorbed polyelectrolyte, the surface charge of the substrate can be systematically varied. These substrates are further used to study deposition of sulfate latex nanoparticles, which is also accomplished by optical reflectivity. This deposition process is found to be consistent with an extension of the random sequential adsorption (RSA) model in a semi-quantitative fashion. Such deposition studies were further used to ascertain that the substrates obtained by in situ and ex situ functionalization behave in an identical fashion.https://www.mdpi.com/2504-5377/5/2/26polyelectrolyteadsorptionparticledepositionwater-solid interface |
| spellingShingle | Dominik Kosior Plinio Maroni Michal Borkovec Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes Colloids and Interfaces polyelectrolyte adsorption particle deposition water-solid interface |
| title | Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes |
| title_full | Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes |
| title_fullStr | Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes |
| title_full_unstemmed | Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes |
| title_short | Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes |
| title_sort | particle deposition to silica surfaces functionalized with cationic polyelectrolytes |
| topic | polyelectrolyte adsorption particle deposition water-solid interface |
| url | https://www.mdpi.com/2504-5377/5/2/26 |
| work_keys_str_mv | AT dominikkosior particledepositiontosilicasurfacesfunctionalizedwithcationicpolyelectrolytes AT pliniomaroni particledepositiontosilicasurfacesfunctionalizedwithcationicpolyelectrolytes AT michalborkovec particledepositiontosilicasurfacesfunctionalizedwithcationicpolyelectrolytes |