NGUYEN, Do; WALDMANN, Lea; LAPEYRE, Veronique; ARBAULT, Stephane; RAVAINE, Valerie; NICOLAI, Taco; BENYAHIA, Lazhar

doi:10.1016/j.jcis.2023.05.029

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NGUYEN, Do

WALDMANN, Lea
Institut des Sciences Moléculaires [ISM]
Institut Polytechnique de Bordeaux [Bordeaux INP]

LAPEYRE, Veronique
Institut des Sciences Moléculaires [ISM]
Institut Polytechnique de Bordeaux [Bordeaux INP]

Idioma

Article de revue

Este ítem está publicado en

Journal of Colloid and Interface Science. 2023, vol. 646, p. 484-492

Resumen en inglés

Hypothesis Molecular surfactants are not able to stabilize water-in-water (W/W) emulsions, unlike nano or micro-particles, which can achieve this in some cases. However, the effect of electrostatic interactions between particles on the emulsion stability has rarely been investigated. We hypothesize that introducing charges modifies the stabilization capacity of particles and renders it both pH-and ionic strength-dependent. Experiments Charge was introduced into bis-hydrophilic and thermoresponsive dextran/polyNisopropylacrylamide microgels by replacing a small fraction of polyN-isopropylacrylamide with acrylic acid groups. The size of the microgels was obtained by dynamic light scattering. The stability and microstructure of dextran/poly(ethyleneoxide)-based W/W emulsions, was< Leer menos

Palabras clave en inglés

Water/Water emulsion

Bis-hydrophilic

Thermoresponsive

Microgels

pH sensitive

Ionic strength

Pickering effect

URI

https://oskar-bordeaux.fr/handle/20.500.12278/199534

DOI

http://dx.doi.org/10.1016/j.jcis.2023.05.029

Proyecto ANR

Réactions enzymatiques oscillantes dans des gouttes aqueuses métastables - ANR-20-CE06-0011

Centros de investigación

CBMN : Chimie & de Biologie des Membranes & des Nano-objets - UMR 5248