Long-range forces extending from polymer-gel surfaces

TL;DR

This study demonstrates that solutes are repelled from polymer-gel surfaces over unexpectedly long distances, suggesting new long-range interaction forces beyond traditional theories.

Contribution

The paper provides experimental evidence of long-range solute-repulsion forces extending far beyond conventional theoretical predictions.

Findings

Solutes are excluded from zones about 100 micrometers from gel surfaces.

Long-range repulsion forces are observed, exceeding traditional expectations.

The results imply potential new mechanisms for solute interactions in gel systems.

Abstract

Aqueous suspensions of microspheres were infused around gels of varying composition. The solutes were excluded from zones on the order of 100 micrometers from the gel surface. We present evidence that this finding is not an artifact, and that solute-repulsion forces exist at distances far greater than conventional theory predicts. The observations imply that solutes may interact over an unexpectedly long range.