Three-body interactions in colloidal systems

Abstract

We present the first direct measurement of three-body interactions in a colloidal system comprised of three charged colloidal particles. Two of the particles have been confined by means of a scanned laser tweezers to a line-shaped optical trap where they diffused due to thermal fluctuations. Upon the approach of a third particle, attractive three-body interactions have been observed. The results are in qualitative agreement with additionally performed nonlinear Poissson-Boltzmann calculations, which also allow us to investigate the microionic density distributions in the neighborhood of the interacting colloidal particles.

References in corpus (7)

• Electrostatic correlations: from Plasma to Biology
• Beyond Poisson-Boltzmann: Fluctuations and Correlations
• Effective charge versus bare charge for colloids in the infinite dilution limit
• Many-body interactions and melting of colloidal crystals
• Effect of many-body interactions on the solid-liquid phase-behavior of charge-stabilized colloidal suspensions
• Effects of three-body interactions on the structure and thermodynamics of liquid krypton
• Understanding Hadron Structure Using Lattice QCD

Cited by in corpus (10)

• Perspective: Coulomb fluids -- weak coupling, strong coupling, in between and beyond
• Volume terms for charged colloids: a grand-canonical treatment
• Pattern formation in colloidal explosions
• Nonlinear effects in charge stabilized colloidal suspensions
• Efficient simulations of charged colloidal dispersions: A density functional approach
• Three-body critical Casimir forces
• Rigorous derivation of a ternary Boltzmann equation for a classical system of particles
• Potential of mean force between like-charged nanoparticles: Many-body effect
• Colloidal ionic complexes on periodic substrates: ground state configurations and pattern switching
• Machine learning many-body potentials for charged colloids in primitive 1:1 electrolytes