{
  "annotation_id": "aa76586a-a962-4bd6-9826-c78771f16434",
  "date_created": "2026-03-02T18:00:39.670000Z",
  "date_modified": "2026-03-02T18:00:39.670000Z",
  "file_hash": "0fad3d9d69c61a601692e19c18019ec19ddbbcce0465ee94c9a42eebad7dd183",
  "private": false,
  "record": {
    "abstract": "The phase transition from the isotropic (I) to nematic (N) liquid crystalline\nsuspension of F-actin of average length $3~\\mu$m or above was studied by local\nmeasurements of optical birefringence and protein concentration. Both\nparameters were detected to be continuous in the transition region, suggesting\nthat the I-N transition is higher than 1st order. This finding is consistent\nwith a recent theory by Lammert, Rokhsar \u0026 Toner (PRL, 1993, 70:1650),\npredicting that the I-N transition may become continuous due to suppression of\ndisclinations. Indeed, few line defects occur in the aligned phase of F-actin.\nIndividual filaments in solutions of a few mg/ml F-actin undergo fast\ntranslational diffusion along the filament axis, whereas both lateral and\nrotational diffusions are suppressed.",
    "arxiv_id": "physics/0209018",
    "authors": [
      "Jorge Viamontes",
      "Jay X. Tang"
    ],
    "categories": [
      "physics.bio-ph"
    ],
    "doi": "10.1103/PhysRevE.67.040701",
    "title": "A continuous isotropic-nematic liquid crystalline transition of F-actin   solutions",
    "url": "https://arxiv.org/abs/physics/0209018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7a8fb6d1-3d00-4e43-afef-b616e5a28298",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}