| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Compressible Colloidal Clusters from Pickering Emulsions and Their DNA Functionalization |
| 초록 |
In the study for DNA-mediated colloidal assembly with pre-assembled clusters, DNA sequences, areal density of DNA, particle number density and size ratio are key parameters for determining equilibrium structures. We developed a simple and facile method to produce compressible colloidal clusters by stabilizing hexafluorobenzene droplet in water with non-crosslinked polystyrene microspheres containing azide functional groups on the surface. Colloidal clusters were prepared by assembling azide-functionalized non-crosslinked polymer particles using fluorinated oil-in-water emulsion droplets. The particles were adsorbed onto the droplet interface, which were packed to form clusters during slow evaporation of the oil. Then, the clusters were coated by DNA using an alkyne–azide cycloaddition (SPAAC) reaction. As the particles are not crosslinked, the shape of the DNA-coated clusters can be further modified to control the compression ratio through plasticization. |
| 저자 |
조인성1, 오준석2, 김신현3, David J. Pine2, 이기라1
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| 소속 |
1성균관대, 2뉴욕대, 3한국과학기술원 |
| 키워드 |
Colloids; Cluster; oil-in-water emulsion; DNA
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| E-Mail |
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