{
  "abstract": "Jammed suspensions of soft microgel particles may exhibit slippage along smooth boundaries. Owing to their expected sub-micrometric dimensions, direct observations of dynamics within the near-surface layers supposed to be responsible for this slippage have been difficult to achieve. Here, we use total internal reflection fluorescence microscopy (TIRFM) to observe nanoparticle dynamics near glass/microgel-suspension interfaces. Indicating near-wall dynamic heterogeneity, velocity profiles for suspensions are nonlinear. These profiles tend to a constant slippage velocity at submicrometric distances from the wall, consistent with macroscopic wall slip measurements. Furthermore, nanoscale particle altitude distributions are strongly dependent on the slip velocity, revealing a dynamically-mediated and nanoscale particle-organisation effect. The collected observations give support for the existence of near-wall heterogeneity as a dominant mechanism contributing to microgel wall slip. Our work also opens new perspectives for the study of particle dynamics and organisation in complex interfacial environments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.03540",
  "author_total": 7,
  "authors": [
    {
      "name": "Masoodah Gunny"
    },
    {
      "name": "Frédérick Caetano"
    },
    {
      "name": "Matilde Bureau"
    },
    {
      "name": "Alexandre Vilquin"
    },
    {
      "name": "Marie Le Merrer"
    },
    {
      "name": "Joshua D Mcgraw"
    },
    {
      "name": "Catherine Barentin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/czdrvsftrd7p3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.03540",
  "fulltext_url": null,
  "id": "czdrvsftrd7p3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.03540",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.soft"
    ],
    [
      "openalex",
      "2505|Material Dynamics and Properties"
    ]
  ],
  "openalex": "W7208775363",
  "pdf_url": "https://arxiv.org/pdf/2609.03540",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/czdrvsftrd7p3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:31Z",
      "native_id": "2609.03540",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.03540"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.soft",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Near-surface colloidal dynamics in jammed and slipping microgel suspensions",
  "title_text": "Near-surface colloidal dynamics in jammed and slipping microgel suspensions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:31Z",
  "url": "https://research.draconitic.com/paper/czdrvsftrd7p3",
  "venue": "arXiv",
  "versions": []
}