Assembly and Dynamic Analysis of Square Colloidal Crystals via Templated Capillary Assembly
| Autor: | Angus McMullen, Veronica Grebe, Jasna Brujic, Marcus Weck, Cicely Shillingford |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
endocrine system
Materials science Capillary action digestive oral and skin physiology 02 engineering and technology Surfaces and Interfaces Colloidal crystal 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics complex mixtures 01 natural sciences Square (algebra) 0104 chemical sciences law.invention body regions Colloid Chemical engineering law Electrochemistry General Materials Science Crystallization 0210 nano-technology Spectroscopy |
| Zdroj: | Langmuir. 35:12205-12214 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.9b02124 |
| Popis: | Capillary assembly has the ability to engineer centimeter-sized regions of discrete colloidal superstructures and microarrays. However, its use as a tool for directing crystallization of colloids into surface-bound nonclose-packed arrays is limited. Furthermore, the use of quantitative particle tracking tools to investigate evaporative assembly dynamics is rarely employed. In this contribution, we use templated capillary assembly to fabricate square-packed lattices of spherical, organosilica colloids using designed patterned boundaries. Particle tracking algorithms reveal that the assembly of square-packed regions is controlled by the interplay between confinement-driven nuclei formation and osmotic pressure-driven restructuring. We find that the incorporation of a square template increases the yield of particles bearing four nearest neighbors ( |
| Databáze: | OpenAIRE |
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