{
  "id": "1004.0845",
  "version": "v1",
  "published": "2010-04-06T13:21:17.000Z",
  "updated": "2010-04-06T13:21:17.000Z",
  "title": "Separation of microscale chiral objects by shear flow",
  "authors": [
    "Marcos",
    "Henry C. Fu",
    "Thomas R. Powers",
    "Roman Stocker"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Phys. Rev. Lett. 102, 158103 (2009)",
  "doi": "10.1103/PhysRevLett.102.158103",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.soft",
    "physics.flu-dyn"
  ],
  "abstract": "We show that plane parabolic flow in a microfluidic channel causes nonmotile helically-shaped bacteria to drift perpendicular to the shear plane. Net drift results from the preferential alignment of helices with streamlines, with a direction that depends on the chirality of the helix and the sign of the shear rate. The drift is in good agreement with a model based on resistive force theory, and separation is efficient (>80%) and fast (<2s). We estimate the effect of Brownian rotational diffusion on chiral separation and show how this method can be extended to separate chiral molecules.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-04-06T13:21:17.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "87.80.Qk",
      "47.63.mf",
      "87.80.Fe"
    ],
    "keywords": [
      "microscale chiral objects",
      "shear flow",
      "separation",
      "plane parabolic flow",
      "net drift results"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2009,
      "month": "Apr",
      "volume": 102,
      "number": 15,
      "pages": 158103
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvL.102o8103M"
    }
  }
}