DNA-Coated Microspheres and Their Colloidal Superstructures

Jeongbin Moon, In Seong Jo, Etienne Ducrot, Joon Suk Oh, David Pine, Gi Ra Yi

Research output: Contribution to journalReview article

Abstract

Reversible and specific interaction between single-stranded DNA on colloidal particles have opened up a new path way of building up colloidal superstructures. DNA-coated microspheres can be bound with other particles with complementary DNA brushes below the melting temperature and can be unbound above the melting temperature. However, due to their random Brownian motion, the particles form random (or glassy) structures in most cases or small crystals when cooling is extremely slow. Therefore, toward programmed colloidal superstructures of DNA-coated microspheres, they should reconfigure their kinetically trapped random structure to equilibrium crystalline structures. While nanoparticles can be rearranged into a crystalline structure by a simple conformational change of relatively long DNA brush, microspheres with short DNA brushes cannot be rearranged only by a conformational change of brush. Instead, sub-diffusion of bound DNA-coated microspheres is necessary which can be possible only with uniform DNA coating with high areal density on microspheres. In this article, we have reviewed methods for the synthesis of high-density DNA-coated microspheres and their assembly into crystalline structures. We also discuss future research direction of DNA-coated microspheres. [Figure not available: see fulltext.].

Original languageEnglish (US)
Pages (from-to)1085-1094
Number of pages10
JournalMacromolecular Research
Volume26
Issue number12
DOIs
StatePublished - Dec 1 2018

Fingerprint

Microspheres
DNA
Brushes
Crystalline materials
Melting point
Brownian movement
Single-Stranded DNA
Complementary DNA
Nanoparticles
Cooling
Coatings
Crystals

Keywords

  • crystallization
  • DNA coating
  • DNA hybridization
  • microsphere
  • self-assembly
  • sub-diffusion

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

DNA-Coated Microspheres and Their Colloidal Superstructures. / Moon, Jeongbin; Jo, In Seong; Ducrot, Etienne; Oh, Joon Suk; Pine, David; Yi, Gi Ra.

In: Macromolecular Research, Vol. 26, No. 12, 01.12.2018, p. 1085-1094.

Research output: Contribution to journalReview article

Moon, J, Jo, IS, Ducrot, E, Oh, JS, Pine, D & Yi, GR 2018, 'DNA-Coated Microspheres and Their Colloidal Superstructures', Macromolecular Research, vol. 26, no. 12, pp. 1085-1094. https://doi.org/10.1007/s13233-018-6151-8
Moon, Jeongbin ; Jo, In Seong ; Ducrot, Etienne ; Oh, Joon Suk ; Pine, David ; Yi, Gi Ra. / DNA-Coated Microspheres and Their Colloidal Superstructures. In: Macromolecular Research. 2018 ; Vol. 26, No. 12. pp. 1085-1094.
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