{
  "annotation_id": "b5abd92d-4466-40bd-8121-0921be90c994",
  "date_created": "2026-03-02T18:00:57.387000Z",
  "date_modified": "2026-03-02T18:00:57.387000Z",
  "file_hash": "56a470d17f994b1e7c28225026164ad1dff3d4e4d1051e695d4b1fbe6777e3cf",
  "private": false,
  "record": {
    "abstract": "A single semiflexible polymer chain folds into a toroidal object under poor\nsolvent conditions. In this study, we examined the morphological change in such\na toroidal state as a function of the width and stiffness of the chain together\nwith the surface energy, which characterizes the segmental interaction\nparameter. Changes in the thickness and outer/inner radius are interpreted in\nterms of these parameters. Our theoretical expectation corresponds to the\nactual morphological changes in a single giant DNA molecule as observed by\nelectron microscopy.",
    "arxiv_id": "physics/0504054",
    "authors": [
      "Y. Takenaka",
      "Y. Yoshikawa",
      "Y. Koyama",
      "T. Kanbe",
      "K. Yoshikawa"
    ],
    "categories": [
      "physics.bio-ph"
    ],
    "doi": "10.1063/1.1944007",
    "title": "Morphological Variation in a Toroid Generated from a Single Polymer   Chain",
    "url": "https://arxiv.org/abs/physics/0504054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c1ca29ba-7aeb-4d68-842e-eb958a6152fa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}