Fabrication of cell pattern on poly(dimethylsiloxane) by vacuum ultraviolet lithography

Colloids Surf B Biointerfaces. 2010 Mar 1;76(1):381-5. doi: 10.1016/j.colsurfb.2009.11.013. Epub 2009 Nov 20.

Abstract

Cell patterning on substrates has played a significant role in the study of basic biology, cell-based biosensor and tissue engineering. In this report, a cell pattern was prepared on poly(dimethylsiloxane) (PDMS) substrate by vacuum ultraviolet (VUV) lithography. After immobilizing allyl-polyethylene glycol (APEG) onto PDMS, a chemical heterogeneous patterned surface was fabricated by VUV (Xe(2) excimer: 172nm) lithography with copper mesh as a photomask. The UV exposed domains can promote L929 cell adhesion and growth. However, non-exposed regions resist cell attachment because of the repelling property of PEG. Therefore, cell pattern could be achieved without pre-adsorption of cell adhesive species before cell culture.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Adhesion / drug effects
  • Cell Line, Tumor
  • Dimethylpolysiloxanes / chemistry*
  • Polyethylene Glycols / chemistry
  • Surface Properties
  • Trypan Blue / chemistry
  • Trypan Blue / pharmacology
  • Ultraviolet Rays

Substances

  • Dimethylpolysiloxanes
  • Polyethylene Glycols
  • Trypan Blue