Self-assembly of an antireflective moth-like structure using antibody-functionalized nanowires and nanopore arrays

Nanotechnology. 2011 Nov 25;22(47):475601. doi: 10.1088/0957-4484/22/47/475601. Epub 2011 Nov 2.

Abstract

A novel framework to fabricate moth-like nanopillar arrays was proposed. In this scheme, nanowires were first cross-linked with anti-gold nanoparticle (GNP) antibodies and mixed with the nanopore array pre-deposited by GNP, which was then followed by centrifugation. An optimal success rate of 95% was finally obtained by choosing nanorods with an aspect ratio of 5:1 by modifying with 10 ng mL⁻¹ antibodies, and by inserting them into a pore array pre-deposited with 54.4 µM GNP. The nanopillar arrays thus fabricated showed high levels of antireflective efficiency across a broad wavelength. Here we demonstrate the assembly of nanowires and nanopores into nanopillar arrays by the assistance of antibody-antigen binding. The application of bio-nano-interaction provides an economic, time-saving, and throughput approach to manipulating objects on the nanoscale.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies / immunology*
  • Centrifugation
  • Gold / chemistry
  • Mice
  • Mice, Inbred BALB C
  • Nanopores* / ultrastructure
  • Nanotechnology / methods*
  • Nanowires / chemistry*
  • Nanowires / ultrastructure
  • Particle Size
  • Propylamines
  • Silanes / chemistry
  • Silicon / chemistry

Substances

  • Antibodies
  • Propylamines
  • Silanes
  • Gold
  • amino-propyl-triethoxysilane
  • Silicon