Reusable nanostencils for creating multiple biofunctional molecular nanopatterns on polymer substrate

Nano Lett. 2012 Sep 12;12(9):4817-22. doi: 10.1021/nl302266u. Epub 2012 Aug 23.

Abstract

In this paper, we demonstrate a novel method for high throughput patterning of bioprobes with nanoscale features on biocompatible polymer substrate. Our technique, based on nanostencil lithography, employs high resolution and robust masks integrated with array of reservoirs. We show that the smallest pattern size can reach down to 100 nm. We also show that different types of biomolecules can be patterned on the same substrate simultaneously. Furthermore, the stencil can be reused multiple times to generate a series of identical patterns at low cost. Finally, we demonstrate that biomolecules can be covalently patterned on the surface while retaining their biofunctionalities. By offering the flexibility on the nanopattern design and enabling the reusability of the stencil, our approach significantly simplifies the bionanopatterning process and therefore could have profound implications in diverse biological and medical applications.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Biopolymers / chemistry*
  • Crystallization / methods*
  • Macromolecular Substances / chemistry
  • Materials Testing
  • Molecular Conformation
  • Molecular Imprinting / methods*
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure*
  • Particle Size
  • Polymers / chemistry*
  • Surface Properties

Substances

  • Biopolymers
  • Macromolecular Substances
  • Polymers