DNA functionalization of colloidal particles: Via physisorption of azide-functionalized diblock copolymers

Jeongbin Moon, In Seong Jo, Jeong Hoon Yoon, Yeongha Kim, Joon Suk Oh, David J. Pine, Gi Ra Yi

Research output: Contribution to journalArticlepeer-review

Abstract

DNA-coated inorganic particles can be prepared simply by physical adsorption of azide-functionalized diblock copolymers (polystyrene-b-poly(ethylene oxide)-azide, PS-b-PEO-N3) onto hydrophobically-modified inorganic particles, followed by strain-promoted azide-alkyne cycloaddition (SPAAC, copper-free click chemistry). This approach is applied to organosilica, silica and titania particles. The DNA-coated colloids are successfully crystallized into colloidal superstructures by a thermal annealing process using DNA-mediated assembly.

Original languageEnglish (US)
Pages (from-to)6930-6933
Number of pages4
JournalSoft Matter
Volume15
Issue number35
DOIs
StatePublished - 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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