Janus colloidal matchsticks

Kundan Chaudhary, Qian Chen, Jaime J. Juárez, Steve Granick, Jennifer A Lewis

Research output: Contribution to journalArticlepeer-review


We fabricated chemically and shape-anisotropic colloids composed of silica rods coated with gold tips using a multistep process involving electric-field alignment and crystallization, microcontact printing, and selective metallization. Through direct observation, we found that these "Janus matchsticks" self-assemble into multipods (bi-, tri-, and tetrapods) of varying coordination number and patch angle in aqueous solution.

Original languageEnglish (US)
Pages (from-to)12901-12903
Number of pages3
JournalJournal of the American Chemical Society
Issue number31
StatePublished - Aug 8 2012

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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