Vertical arrays of anisotropic particles by gravity-driven self-assembly

Benjamin D. Smith, David J. Kirby, Christine D. Keating

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Anisotropic particles assemble to spontaneously form columnar arrays. Hybrid nanotube/nanowire particles (silica nanotubes partially filled with metallic cores) deposit with their denser metallic ends towards the surface, orienting them vertically. Up to 84% are observed to be standing over a 0.64 cm2 area within 15 min. Standing percentage is found to be dependent on particle surface concentration.

Original languageEnglish (US)
Pages (from-to)781-787
Number of pages7
Issue number6
StatePublished - Mar 21 2011

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • General Chemistry
  • General Materials Science


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