Biomolecule and nanoparticle transfer on patterned and heterogeneously wetted superhydrophobic silicon nanowire surfaces

Langmuir. 2008 Mar 4;24(5):1670-2. doi: 10.1021/la703985w. Epub 2008 Feb 6.

Abstract

We report on the use of patterned superhydrophobic silicon nanowire surfaces for the efficient, selective transfer of biological molecules and nanoparticles. Superhydrophilic patterns are prepared on superhydrophobic silicon nanowire surfaces using standard optical lithography. The resulting water-repellent surface allows material transfer and physisorption to the superhydrophilic islands upon exposure to an aqueous solution containing peptides, proteins, or nanoparticles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Hydrophobic and Hydrophilic Interactions*
  • Microscopy, Electron, Scanning
  • Nanoparticles / chemistry*
  • Nanowires / chemistry*
  • Peptides / chemistry*
  • Proteins / chemistry*
  • Silicon*
  • Surface Properties
  • Water / chemistry

Substances

  • Peptides
  • Proteins
  • Water
  • Silicon