Capillary-driven thinning of DNA solutions
Soft Condensed Matter
2025-03-19 v1 Biological Physics
Abstract
Capillary thinning of polymeric fluids is central to biological and industrial processes, yet the mechanisms governing thinning dynamics remain unresolved, especially for semi-flexible polymers. Using ideal solutions of semi-flexible DNA, we validate a predictive model for exponential capillary thinning that accounts for each polymer in the molecular weight distribution. For semi-flexible polymers, self-selection of the exponential time constant occurs by a fundamentally different mechanism than for highly flexible systems, and is not simply governed by the longest polymer relaxation time.
Cite
@article{arxiv.2503.14145,
title = {Capillary-driven thinning of DNA solutions},
author = {Vincenzo Calabrese and Silvia Nardone and Amy Q. Shen and Simon J. Haward},
journal= {arXiv preprint arXiv:2503.14145},
year = {2025}
}