Colloids with valence and specific directional bonding
By Yufeng Wang, Yu Wang, Dana R. Breed, V. Manoharan, Lang Feng, A. Hollingsworth, M. Weck, D. Pine. Nature, 2012
929 citations recorded by the source corpus.
The ability to design and assemble three-dimensional structures from colloidal particles is limited by the absence of specific directional bonds. As a result, complex or low-coordination structures, common in atomic and molecular systems, are rare in the colloidal domain. Here we demonstrate a general method for creating the colloidal analogues of atoms with valence: colloidal particles with chemically distinct surface patches that imitate hybridized atomic orbitals, including sp, sp2, sp3, sp3d, sp3d2 and sp3d3. Functionalized with DNA with single-stranded sticky ends, patches on different particles can form highly directional bonds through programmable, specific and reversible DNA hybridization. These features allow the particles to self-assemble into ‘colloidal molecules’ with triangular, tetrahedral and other bonding symmetries, and should also give access to a rich variety of new microstructured colloidal materials.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Surfaces, Coatings and Films
View Paper: https://www.semanticscholar.org/paper/1add2608d901bf358da7dd3061539cadb7de7590
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In Electronic, Optical and Magnetic Materials
In Materials Chemistry
Citations in the corpus
- Programmable materials and the nature of the DNA bond (2015, methodology): “[Modified from (91), with permission] (C) By using core”
- Assembly and phase transitions of colloidal crystals (2016, background): “In the past three decades, various coating methods for making Janus [89] and multipatch spheres [90] have been developed.”