| People | Locations | Statistics |
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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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Patil, Avinash J.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2017Self-Assembly of Colloidal Nanocomposite Hydrogels Using 1D Cellulose Nanocrystals and 2D Exfoliated Organoclay Layerscitations
- 2016Chitin and carbon nanotube composites as biocompatible scaffolds for neuron growthcitations
- 2013Ionic liquids-based processing of electrically conducting chitin nanocomposite scaffolds for stem cell growthcitations
- 2013Directing Chondrogenesis of Stem Cells with Specific Blends of Cellulose and Silkcitations
- 2013The reinforcement effects of graphene oxide nanoplatelets on the mechanical and viscoelastic properties of natural rubber
- 2012Polymer/nucleotide droplets as bio-inspired functional micro-compartmentscitations
- 2011Guest-Molecule-Directed Assembly of Mesostructured Nanocomposite Polymer/Organoclay Hydrogelscitations
- 2011Supramolecular hydrogels derived from silver ion-mediated self-assembly of 5 '-guanosine monophosphatecitations
- 2009Membrane stabilization and transformation in organoclay-vesicle hybrid constructscitations
- 2009Immobilisation and encapsulation of functional protein-inorganic constructscitations
- 2007Bio-functional mesolamellar nanocomposites based on inorganic/polymer intercalation in purple membrane (bacteriorhodopsin) filmscitations
- 2007Influence of polymer co-intercalation on guest release from aminopropyl-functionalized magnesium phyllosilicate mesolamellar nanocompositescitations
Places of action
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article
Polymer/nucleotide droplets as bio-inspired functional micro-compartments
Abstract
Using a range of physical methods, we describe the formation, structure, stability, physical properties and uptake behavior of condensed liquid micro-droplets prepared by electrostatically induced complexation of poly(diallyldimethylammonium) chloride (PDDA) and adenosine triphosphate (ATP) in water. Depending on the PDDA monomer: ATP molar ratio, positively charged or charge-neutral droplets are produced spontaneously by simple mixing. The former are typically 60-600 nm in mean size and stable with respect to sedimentation up to temperatures of 85 degrees C, whilst the latter grow into droplets several tens of micrometres in diameter that coalesce into a macroscopic coacervate phase. Coacervation is inhibited at pH values less than 3 and at high ionic strength, confirming the importance of charge interactions in droplet formation and stability. The droplet interior is structurally homogeneous with no surrounding membrane, comprises dynamically fluctuating domains of partially desolvated polymer/nucleotide complexes, and has a dielectric constant considerably lower than water. As a consequence, dye molecules, porphyrin macrocycles, inorganic nanoparticles or globular proteins can be sequestered from the external water phase into the droplets to produce PDDA/ATP droplets comprising supramolecular J-aggregate nanostructures, magnetically responsive deformable fluids, or soft compartments with potential storage and release properties.