Dopamine-assisted rapid fabrication of nanoscale protein arrays by colloidal lithography

Langmuir. 2012 Jun 12;28(23):8594-9. doi: 10.1021/la301441t. Epub 2012 May 31.

Abstract

The development of cost-effective methodologies for the precise nanometer-scale positioning of biomolecules permits the low-cost production of various biofunctional devices for a range of biomedical and nanotechnological applications. By combining colloidal lithography and the mussel-inspired multifunctional polydopamine coating, we present a novel parallel benchtop method that allows rapid nanoscale patterning of proteins without the need for electrically powered equipment in the fabrication process. The PDA-immobilized binary nanopattern consisting of BSA surrounded by PLL-g-PEG is fabricated over a large area, and the integrity of the pattern is confirmed using AFM and FM.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colloids
  • Dopamine / chemistry*
  • Microscopy, Atomic Force
  • Nanotechnology / methods*
  • Polyethylene Glycols / chemistry*
  • Polylysine / analogs & derivatives*
  • Polylysine / chemistry
  • Printing / methods*
  • Protein Array Analysis
  • Proteins / chemistry*
  • Surface Properties

Substances

  • Colloids
  • Proteins
  • polylysine-graft-(poly(ethylene glycol))
  • Polylysine
  • Polyethylene Glycols
  • Dopamine