Wet-chemical synthesis of chiral colloids

Samia Ouhajji, Bas G.P. van Ravensteijn, Carla Fernández-Rico, Kanvaly S. Lacina, Albert P. Philipse, Andrei V. Petukhov

Research output: Contribution to journalArticleAcademicpeer-review

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112 Downloads (Pure)


We disclose a method for the synthesis of chiral colloids from spontaneously formed hollow sugar-surfactant microtubes with internally confined mobile colloidal spheres. Key feature of our approach is the grafting of colloid surfaces with photoresponsive coumarin moieties, which allow for UV-induced, covalent clicking of colloids into permanent chains, with morphologies set by the colloid-to-tube diameter ratio. Subsequent dissolution of tube confinement yields aqueous suspensions that comprise bulk quantities of a variety of linear chains, including single helical chains of polystyrene colloids. These colloidal equivalents of chiral (DNA) molecules are intended for microscopic study of chiral dynamics on a single-particle level.

Original languageEnglish
Pages (from-to)12089-12095
Number of pages7
JournalACS Nano
Issue number12
Publication statusPublished - 26 Dec 2018


  • chirality
  • colloidal synthesis
  • confined assembly
  • helices
  • UV irradiation


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