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This research aims to evaluate classical density functional theory strategies for predicting stability in colloid mixtures in electrolyte solutions.

Stability of Nano and Micro Particle Suspensions in Electrolyte Solutions: A Comparative Classical Density Functional Theory and Measurement of Force and Structure in Confined Complex Fluid

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This research aims to evaluate classical density functional theory strategies for predicting stability in colloid mixtures in electrolyte solutions.
Used atomic force microscopy to measure interaction forces between silica microcolloids and substrates in sodium chloride solutions.
Compared different DFT functionals: hard-sphere functional and fundamental measure theory (FMT).
Analyzed internanoparticle electrostatic repulsion effects on nanoparticle interactions.
Both DFT functionals reproduce oscillatory force amplitudes across various concentrations effectively.
FMT captures better scaling of force oscillation wavelengths compared to simpler models.
Introduced a simplified method using nonideal gas theory for effective hard-sphere diameter, aligning well with experimental data.

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Randomized trial explores interactions and stability in colloid mixtures, suggesting effective methods for predictions.

Riva et al. (2026) studied this question.

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