{
  "annotation_id": "0f49e41c-2d36-444b-861d-0726408f56cc",
  "date_created": "2026-03-02T18:01:14.829000Z",
  "date_modified": "2026-03-02T18:01:14.829000Z",
  "file_hash": "dcf315c59f4121cf6600323751e73326c625f2fb5e529801c3022f9ce4406d47",
  "private": false,
  "record": {
    "abstract": "Droplets are natural candidates for use as microfluidic reactors, if active\ncontrol of their formation and transport can be achieved. We show here that\nlocalized heating from a laser can block the motion of a water-oil interface,\nacting as a microfluidic valve for two-phase flows. A theoretical model is\ndeveloped to explain the forces acting on a drop due to thermocapillary flow,\npredicting a scaling law which favors miniaturization. Finally, we show how the\nlaser forcing can be applied to sorting drops, thus demonstrating how it may be\nintegrated in complex droplet microfluidic systems.",
    "arxiv_id": "physics/0611170",
    "authors": [
      "C. N. Baroud",
      "J. -P. Delville",
      "F. Gallaire",
      "R. Wunenburger"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "doi": "10.1103/PhysRevE.75.046302",
    "title": "Thermocapillary valve for droplet production and sorting",
    "url": "https://arxiv.org/abs/physics/0611170"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3a99383c-753b-4f05-bc3e-e7d9493ed74a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}