Journal
SOFT MATTER
Volume 15, Issue 35, Pages 6930-6933Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sm01243e
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Funding
- National Research Foundation of Korea (NRF) [NRF-2017M3A7B8065528]
- US Army Research Office [W911NF-171-0328]
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DNA-coated inorganic particles can be prepared simply by physical adsorption of azide-functionalized diblock copolymers (polystyrene-bpoly(ethylene oxide)-azide, PS-b-PEO-N-3) 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.
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