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DNA functionalization of colloidal particles via physisorption of azide-functionalized diblock copolymers

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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.

Graphical abstract: DNA functionalization of colloidal particles via physisorption of azide-functionalized diblock copolymers

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Publication details

The article was received on 21 Jun 2019, accepted on 24 Jul 2019 and first published on 25 Jul 2019


Article type: Communication
DOI: 10.1039/C9SM01243E
Soft Matter, 2019, Advance Article

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    DNA functionalization of colloidal particles via physisorption of azide-functionalized diblock copolymers

    J. Moon, I. Jo, J. H. Yoon, Y. Kim, J. S. Oh, D. J. Pine and G. Yi, Soft Matter, 2019, Advance Article , DOI: 10.1039/C9SM01243E

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