| 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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Werner, Carsten
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (45/45 displayed)
- 202375 years of polymer research in Dresden
- 2023Discriminant Principal Component Analysis of ToF-SIMS Spectra for Deciphering Compositional Differences of MSC-Secreted Extracellular Matricescitations
- 2023Hydrogel-Coated Nanonet-Based Field-Effect Transistors for SARS-CoV-2 Spike Protein Detection in High Ionic Strength Samples
- 2023Dynamic matrices with DNA-encoded viscoelasticity for cell and organoid culturecitations
- 2022Microenvironment-mediated cancer dormancy: Insights from metastability theorycitations
- 2022Real-Time Monitoring of Blood Parameters in the Intensive Care Unit: State-of-the-Art and Perspectivescitations
- 2021Hemocompatible Electrochemical Sensors for Continuous Monitoring of Blood Parameterscitations
- 2021Bioresponsive starPEG-heparin hydrogel coatings on vascular stents for enhanced hemocompatibilitycitations
- 2020Protein Component of Oyster Glycogen Nanoparticlescitations
- 2019Highly conductive, stretchable, and cell‐adhesive hydrogel by nanoclay dopingcitations
- 2019Impact of oral astringent stimuli on surface charge and morphology of the protein-rich pellicle at the tooth–saliva interphasecitations
- 2019Fabrication of multifunctional titanium surfaces by producing hierarchical surface patterns using laser based ablation methodscitations
- 2019Temperature-Induced Mechanomodulation of Interpenetrating Networks of Star Poly(ethylene glycol)-Heparin and Poly(N-isopropylacrylamide)citations
- 2019Springtail-inspired triangular laser-induced surface textures on metals using mhz ultrashort pulsescitations
- 2018Analyzing the antiseptic capacity of silver-functionalized poly(ethylene glycol)-heparin hydrogels after human whole blood exposurecitations
- 2017Solvent-assisted micromolding of biohybrid hydrogels to maintain human hematopoietic stem and progenitor cells ex vivocitations
- 2017Cell-instructive starPEG-heparin-collagen composite matricescitations
- 2017Forbidden Chemistrycitations
- 2017Macromolecular crowding for tailoring tissue-derived fibrillated matricescitations
- 2016A hyperbranched dopamine-containing PEG-based polymer for the inhibition of α-synuclein fibrillationcitations
- 2015Thermo-responsive cell culture carriers based on poly(vinyl methyl ether) - The effect of biomolecular ligands to balance cell adhesion and stimulated detachment
- 2015Thermo-responsive cell culture carriers based on poly(Vinyl Methyl ether) - the effect of biomolecular ligands to balance cell adhesion and stimulated detachment.citations
- 2014Influence of Individual Phospholipids on the Physical Properties of Oil-Based Suspensionscitations
- 2013The impact of lecithin on rheology, sedimentation and particle interactions in oil-based dispersionscitations
- 2013Permanent surface modification by electron-beam-induced grafting of hydrophilic polymers to PVDF membranescitations
- 2013On the use of electrokinetics for unraveling charging and structure of soft planar polymer filmscitations
- 2013ECM modulated early kidney development in embryonic organ culturecitations
- 2012Surface modification of cell culture carrierscitations
- 2012Polymeric biomaterials for stem cell bioengineeringcitations
- 2011Biokompatible und bioaktive polymere Beschichtungencitations
- 2011Immobilization of Bacillus licheniformis α-amylase onto reactive polymer filmscitations
- 2011Enzyme immobilization on reactive polymer filmscitations
- 2011Modulating Biofunctional starPEG Heparin Hydrogels by Varying Size and Ratio of the Constituentscitations
- 2011Electron beam immobilization of functionalized poly(vinyl methyl ether) thin films on polymer surfaces - Towards stimuli responsive coatings for biomedical purposescitations
- 2011Enzymes for antifouling strategiescitations
- 2010The role of the interplay between polymer architecture and bacterial surface properties on the microbial adhesion to polyoxazoline-based ultrathin filmscitations
- 2010Studying the influence of chemical structure on the surface properties of polymer filmscitations
- 2010Hydroxide and hydronium ion adsorption - A surveycitations
- 2009Charging and structure of zwitterionic supported bilayer lipid membranes studied by streaming current measurements, fluorescence microscopy, and attenuated total reflection Fourier transform infrared spectroscopycitations
- 2009Temperature dependent physicochemical properties of poly(N- isopropylacrylamide-co-N-(1-phenylethyl) acrylamide) thin filmscitations
- 2009Electrostatic stretching of grafted maleic acid copolymer chainscitations
- 2004In vitro blood compatibility of polymeric biomaterials through covalent immobilization of an amidine derivativecitations
- 2002Characterization of oxide layers on Ti6Al4V and titanium by streaming potential and streaming current measurementscitations
- 2001Electrokinetic Measurements Reveal Interfacial Charge at Polymer Films Caused by Simple Electrolyte Ionscitations
- 2000Analiza povrsine vlaken z mikroskopijo atomskih sil (AFM)
Places of action
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article
Electrokinetic Measurements Reveal Interfacial Charge at Polymer Films Caused by Simple Electrolyte Ions
Abstract
<p>The interfacial charge on spin-coated films of poly(tetrafluoroethylene-co-2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole) (Teflon AF) was studied by streaming potential and streaming current measurements in diluted aqueous solutions of potassium chloride, potassium hydroxide, and hydrochloric acid. χ potential and surface conductivity were derived from electrokinetic data determined at varied concentrations of the electrolytes by means of the novel microslit electrokinetic setup (ref 1: J. Colloid Interface Sci. 1998, 208, 329). The results obtained revealed the high relevance of unsymmetrical (preferential) adsorption of ions as the origin of charge formation at unpolar polymer materials in aqueous environments. The preferential adsorption of hydroxide ions (OH<sup>-</sup>) was found to predominate as compared to the adsorption of hydronium ions (H<sub>3</sub>O<sup>+</sup>) at similar concentrations, i.e., in solutions of neutral pH. No effect of preferential adsorption was induced by chloride (Cl<sup>-</sup>) and potassium (K<sup>+</sup>) ions. For the first time χ potential and surface conductivity data were evaluated to quantify the charge density of the inner layer at the polymer-water interface. The results indicate the presence of both cations and anions in the stagnant layer in all analyzed cases. The charge density and the total ion concentration in this inner part of the electrical double layer were found to increase with increasing ionic strength of the solution. However, the total ion densities of the stagnant layer remained rather low. This suggests that the ions are localized in one interfacial plane. With regard to the origin of the characterized charging process we conclude that the OH<sup>-</sup> and H<sub>3</sub>O<sup>+</sup> ions capability to form hydrogen bonds and the difference in the structures of the hydration shells of these two ions are of highest importance to explain the observed phenomena.</p>