Interface and colloid science

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Publications associées (30)

Biocompatible Amphiphilic Hydrogel–Solid Dimer Particles as Colloidal Surfactants

Esther Amstad, Jing Fan

Emulsions of two immiscible liquids can slowly coalesce over time when stabilized by surfactant molecules. Pickering emulsions stabilized by colloidal particles can be much more stable. Here, we fabricate biocompatible amphiphilic dimer particles using a h ...

2017

Tailoring Copper Nanocrystals towards C-2 Products in Electrochemical CO2 Reduction

Raffaella Buonsanti, Anna Loiudice, Esmail Kamali Ardekani

Favoring the CO2 reduction reaction (CO2RR) over the hydrogen evolution reaction and controlling the selectivity towards multicarbon products are currently major scientific challenges in sustainable energy research. It is known that the morphology of the c ...

Wiley-Blackwell2016

Optical label-free and model-free probe of the surface potential of nanoscale and microscopic objects in aqueous solution

Sylvie Roke, Cornelis Ulrich Lütgebaucks

The electrostatic environment of aqueous systems is an essential ingredient for the function of any living system. To understand the electrostatic properties and their molecular foundation in soft, living, and three-dimensional systems, we developed a tabl ...

Amer Physical Soc2016

Contributions to 3D differential microwave imaging

Michael Mattes, Mina Bjelogrlic, Benjamin Fuchs

This paper presents new contributions to forward and inverse problems in 3D differential microwave imaging. This technique is well suited to monitor a pathological evolution, for instance the brain stroke of a patient. The forward problem is solved using a ...

2016

Isolation and Characterization of Monodisperse Core Shell Nanoparticle Fractions

Francesco Stellacci, Randy Patrick Carney, Raffaele Mezzenga

Monodispersity is a key property to control the self-assembly of colloidal particles, and is typically reached after fine-tuning of the synthesis conditions. Monodisperse particle fractions can also be separated from polydisperse suspensions via ultracentr ...

American Chemical Society2015

Probing titanate nanowire surface acidity through methylene blue adsorption in colloidal suspension and on thin films

László Forró, Arnaud Magrez, Endre Horvath

The interaction of the cationic dye methylene blue (MB) with titanate nanowires (TiONWs) was investigated in different pH environments using visible spectroscopy and electrophoresis on thin films as well as in aqueous suspension. The surface charge of the ...

Academic Press Inc Elsevier Science2014

Characterizing the Structure and Defect Concentration of ZnO Nanoparticles in a Colloidal Solution

Majed Chergui, Marco Eli Reinhard, Thomas James Penfold, Camelia Borca, Thomas Charles Henry Rossi, Mercedes Hannelore Rittmann-Frank, Jochen Rittmann

The structure and defect concentration of colloidal solutions of ZnO nanoparticles, synthesized by a sol gel procedure (SG-NP), as well as commercially available ZnO nanoparticles (SA-NP) are investigated by UV-vis absorption spectroscopy, transmission ele ...

Amer Chemical Soc2014

Dispersion Characteristics and Aggregation in Titanate Nanowire Colloids

László Forró, Arnaud Magrez, Endre Horvath, Plinio Maroni

Titanate nanowires (TiONWs) are synthesized through the hydrothermal method and characterized in acidic aqueous dispersions by using electrophoresis, dynamic light scattering, and atomic force microscopy. The TiONWs have a rodlike shape with an average len ...

Wiley-V C H Verlag Gmbh2014

Quantum dot-sensitized solar cells based on directly adsorbed zinc copper indium sulfide colloids

Nestor Guijarro Carratala

Heavy metal-based quantum dots (QDs) have been demonstrated to behave as efficient sensitizers in QD-sensitized solar cells (QDSSCs), as attested by the countless studies and encouraging efficiencies reported so far. However, their intrinsic toxicity has a ...

Royal Soc Chemistry2014

Cu(In1-xGax)S-2 nanocrystals and films: low-temperature synthesis with size and composition control

Giorgio Margaritondo

We demonstrate a single-step X-ray irradiation process that yields high-quality Cu(In1-xGax)S-2 nanocrystals in colloidal solutions, with complete control of size and composition. Thin films produced by drop-casting exhibit high-quality photoresponse, conf ...

Royal Soc Chemistry2013

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