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Oil-in-dispersion emulsions stabilized by electrostatic repulsions between surfactant and tea polyphenol nanoparticles

Tingting Yan, Shaoying Fan, Yiping Yun, Zhenqi Jiang, Ming Liu, Lulu Zhou

2026Chemical Communications10 citationsDOI

Abstract

Stable oil-in-dispersion emulsions are achieved at ultralow additive levels (0.006 wt% EG-NPs and 0.03 mM SDS) through a same-charge cooperative mechanism between anionic SDS and negatively charged EG-NPs. Electrostatic repulsion ensures stability, enabling reversible control and broad oil compatibility, thereby offering a sustainable, low-concentration, and environmentally benign emulsification strategy.

Topics & Concepts

Pulmonary surfactantChemistryChemical engineeringNanoparticleEmulsionNonionic surfactantElectrostaticsPolyphenolElectrostatic interactionStatic electricityZeta potentialMechanism (biology)Dispersion (optics)Water in oilOil dropletOrganic chemistryParticle sizeNanotechnologyViscosityColloidPickering emulsionPickering emulsions and particle stabilizationProteins in Food SystemsSurfactants and Colloidal Systems
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