{
  "annotation_id": "fd031e04-a640-402a-b54f-641c4625dba1",
  "date_created": "2026-03-02T18:00:39.179000Z",
  "date_modified": "2026-03-02T18:00:39.179000Z",
  "file_hash": "a87bb39a56b06a4ad84863ddc7c4f746047a1aa7abc6ed80ff7abc688d35ccaa",
  "private": false,
  "record": {
    "abstract": "We investigated the nanometer scale height fluctuations of 3T3 fibroblast\ncells with the atomic force microscope (AFM) under physiological conditions.\nCorrelation between these fluctuations and lateral cellular motility can be\nobserved. Fluctuations measured on leading edges appear to be predominantly\nrelated to actin polymerization-depolymerization processes. We found fast (5\nHz) pulsatory behavior with 1--2 nm amplitude on a cell with low motility\nshowing emphasized structure of stress fibres. Myosin driven contractions of\nstress fibres are thought to induce this pulsation.",
    "arxiv_id": "physics/0209007",
    "authors": [
      "B\u00e1lint Szab\u00f3",
      "D\u00e1vid Selmeczi",
      "Zsuzsanna K\u00f6rnyei",
      "Em\u00edlia Madar\u00e1sz",
      "No\u00e9mi Rozlosnik"
    ],
    "categories": [
      "physics.bio-ph",
      "astro-ph",
      "q-bio"
    ],
    "doi": "10.1103/PhysRevE.65.041910",
    "journal_ref": "Phys.Rev. E65 (2002) 041910",
    "title": "Atomic Force Microscopy of height fluctuations of fibroblast cells",
    "url": "https://arxiv.org/abs/physics/0209007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f1fbf15d-daaf-44a3-bb6c-6572984a13d6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}