Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure

Details Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure

2010-05-14

arxiv.org/abs/1005.2628v2

J. Chem. Phys. 133, 164903 (2010)

Physics

Condensed Matter

Soft Condensed Matter

35 pages, 14 figures

Scientific paper

10.1063/1.349874

A method for measuring the pair interaction potential between colloidal particles by extrapolation measurement of collective structure to infinite dilution is presented and explored using simulation and experiment. The method is particularly well suited to systems in which the colloid is fluorescent and refractive index matched with the solvent. The method involves characterizing the potential of mean force between colloidal particles in suspension by measurement of the radial distribution function using 3D direct visualization. The potentials of mean force are extrapolated to infinite dilution to yield an estimate of the pair interaction potential, $U(r)$. We use Monte Carlo (MC) simulation to test and establish our methodology as well as to explore the effects of polydispersity on the accuracy. We use poly-12-hydroxystearic acid-stabilized poly(methyl methacrylate) (PHSA-PMMA) particles dispersed in the solvent dioctyl phthalate (DOP) to test the method and assess its accuracy for three different repulsive systems for which the range has been manipulated by addition of electrolyte.

Affiliated with

Also associated with

No associations

Rating

Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pair Interaction Potentials of Colloids by Extrapolation of Confocal Microscopy Measurements of Collective Structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-240656