{
  "abstract": "In this work, interaction effects and droplet dynamics in chitosan-coated nanoemulsions were investigated via echo-Diffusing Wave Spectroscopy (DWS). Medium-chain triglyceride (MCT) nanoemulsions containing 5–10% (w/w) oil were prepared with and without chitosan. Experimental photon transport mean free paths, were compared with non-interacting, hard-sphere, and excluded-annulus scattering models to evaluate the contribution of inter-droplet correlations. Intensity correlation functions were analyzed against scaled delay time, to account for differences in photon transport, while mean squared displacements (MSDs) were used to characterize inferred droplet motion. Chitosan incorporation produced non-monotonic changes in photon transport and correlation relaxation, while generally reducing the apparent droplet displacement. The excluded-annulus model provided a useful first approximation of selected intermediate-concentration formulations but was not able to capture the full concentration dependence, highlighting the limitations of representing the hydrated chitosan layer as a fixed exclusion boundary. The findings reveal a concentration-dependent interplay between longer-range interactions governing inter-droplet organization and hydrodynamic coupling and shorter-range interactions involving the hydrated polymer layer. This study demonstrates the value of echo-DWS for investigating interaction effects in polymer-coated nanoemulsions and provides a physical framework for their rational design as drug-delivery carriers.",
  "abstract_shown": true,
  "affiliations": [
    "Engineering, College of Engineering",
    "University of Miami",
    "Department of Physics, College of Arts and Sciences",
    "Department of Chemistry, College of Arts and Sciences"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Logan-Marie Torry"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Foluso Akin-Ige"
    },
    {
      "affs": [
        2,
        1
      ],
      "name": "Jose Huergo"
    },
    {
      "affs": [
        3,
        1
      ],
      "name": "Amy Yang"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Leah Knight"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Samiul Amin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0qzhvs8g1bhwp.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15009966/v1",
  "fulltext_url": null,
  "id": "0qzhvs8g1bhwp",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009966/v1",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1106|Proteins in Food Systems"
    ]
  ],
  "openalex": "W7220662774",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15009966/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/0qzhvs8g1bhwp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "10.26434/chemrxiv.15009966",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009966/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "source:chemrxiv",
      "subfield": "general"
    }
  ],
  "title": "Interaction effects and droplet dynamics in chitosan-coated nanoemulsions via echo-Diffusing Wave Spectroscopy",
  "title_text": "Interaction effects and droplet dynamics in chitosan-coated nanoemulsions via echo-Diffusing Wave Spectroscopy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/0qzhvs8g1bhwp",
  "venue": "ChemRxiv",
  "versions": []
}