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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ke, Pu Chun
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2017Cofibrillization of pathogenic and functional amyloid proteins with gold nanoparticles against amyloidogenesiscitations
- 2016Inhibition of hIAPP amyloid aggregation and pancreatic β-cell toxicity by OH-terminated PAMAM dendrimercitations
- 2015PAMAM dendrimers and graphene: materials for removing aromatic contaminants from watercitations
- 2013Exploiting the physicochemical properties of dendritic polymers for environmental and biological applicationscitations
- 2012Understanding dendritic polymer-hydrocarbon interactions for oil dispersioncitations
- 2008Single-Molecule Dendrimer-Hydrocarbon Interactioncitations
- 2007Single-molecule study of dendrimer-hydrocarbon interaction
Places of action
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article
Single-Molecule Dendrimer-Hydrocarbon Interaction
Abstract
We report our single-molecule fluorescence microscopy and molecular dynamics simulation studies on the interaction of poly(amidoamine) dendrimer and squalane hydrocarbon in aqueous solution. Our spectrophotometry measurements indicate that this interaction increases with the pH of the solvent. Our simulations show that squalane resides primarily on the perimeter of the dendrimer at low to neutral pH, but becomes encapsulated by the dendrimer at high pH. Using single-molecule fluorescence microscopy, we have identified that the binding between PAMAM and squalane is reversible. At a pH value of 8, the approaching, binding, and characteristic times of a single fluorescently-labeled dendrimer to squalane are 0.5 s, 7.5 s, and 0.5 s, respectively. Both our spectrophotometry measurements and simulations show that the interaction between PAMAM and squalane is stronger for lower generation dendrimers. This study facilitates our understanding of using dendritic and hyperbranched polymers for gas hydrate prevention in the petroleum industry.