| 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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Stellacci, Francesco
École Polytechnique Fédérale de Lausanne
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Reaction of β‐Ketoester and 1,3‐Diol to Access Chemically Recyclable and Mechanically Robust Poly(vinyl alcohol) Thermosets through Incorporation of β‐(1,3‐dioxane)estercitations
- 2023Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystalcitations
- 2022Experimental Method to Distinguish between a Solution and a Suspensioncitations
- 2019Local photo-mechanical stiffness revealed in gold nanoparticles supracrystals by ultrafast small-angle electron diffractioncitations
- 2019Stable ultraconcentrated and ultradilute colloids of CsPbX 3 (X=Cl, Br) nanocrystals using natural lecithin as a capping ligandcitations
- 2019Microstructured Fibers for the Production of Foodcitations
- 2014High-surface-area porous platinum electrodes for enhanced charge transfercitations
- 2013Low-Voltage Self-Assembled Monolayer Field-Effect Transistors on Flexible Substratescitations
- 2011Low-Voltage p- and n-Type Organic Self-Assembled Monolayer Field Effect Transistorscitations
- 2010Concept of a Molecular Charge Storage Dielectric Layer for Organic Thin-Film Memory Transistorscitations
- 2000Two-photon fluorescent labels with enhanced sensitivity for biological imaging
Places of action
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article
Experimental Method to Distinguish between a Solution and a Suspension
Abstract
<jats:title>Abstract</jats:title><jats:p>Dispersion of objects in a fluid phase can be classified as solutions (Gibbs free energy of mixing, Δ<jats:italic>G</jats:italic><jats:sub>mix</jats:sub> < 0) or suspensions (Δ<jats:italic>G</jats:italic><jats:sub>mix</jats:sub> > 0) depending on their thermodynamic stability. Small objects tend to form solutions, larger ones suspensions, e.g., molecules versus micrometer‐sized colloids. Proteins and nanomaterials fall between these two size regimes. The long‐standing issue of whether proteins and nanoparticles are dissolved or suspended remains an important research question. Here, a simple, versatile, and experimentally robust method, based on sedimentation equilibrium analytical ultracentrifugation (SE‐AUC), which can determine whether proteins, nanoparticles, or polymers form solutions or suspensions, is presented. SE‐AUC determines the osmotic pressure profile for a dispersion. Such a profile for solutions (equilibrium one‐phase systems) is independent of the initial and the operating conditions. The opposite is true for suspensions that are nonequilibrium two‐phase systems. This study proves that bovine serum albumin and lysozyme form solutions while ferritin and apoferritin form suspensions.</jats:p>