Self-assembly behavior of oppositely charged inverse bipatchy microcolloids
- A directed attractive interaction between predefined "patchy" sites on the surfaces of anisotropic microcolloids can provide them with the ability to self-assemble in a controlled manner to build target structures of increased complexity. An important step toward the controlled formation of a desired superstructure is to identify reversible electrostatic interactions between patches which allow them to align with one another. The formation of bipatchy particles with two oppositely charged patches fabricated using sandwich microcontact printing is reported. These particles spontaneously self-aggregate in solution, where a diversity of short and long chains of bipatchy particles with different shapes, such as branched, bent, and linear, are formed. Calculations show that chain formation is driven by a combination of attractive electrostatic interactions between oppositely charged patches and the charge-induced polarization of interacting particles.
Author details: | Fatemeh Naderi MehrORCiDGND, Dmitry GrigorievORCiDGND, Rebecca Heaton, Joshua BaptisteORCiD, Anthony J. StaceORCiD, Nikolay PuretskiyGND, Elena BesleyORCiD, Alexander BökerORCiDGND |
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DOI: | https://doi.org/10.1002/smll.202000442 |
ISSN: | 1613-6810 |
ISSN: | 1613-6829 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/32181972 |
Title of parent work (English): | Small : nano micro |
Publisher: | Wiley-VCH |
Place of publishing: | Weinheim |
Publication type: | Article |
Language: | English |
Date of first publication: | 2020/03/17 |
Publication year: | 2020 |
Release date: | 2023/07/07 |
Tag: | electrostatic interactions; patchy particles; polyelectrolyte inks; sandwich microcontact printing; self-assembly |
Volume: | 16 |
Issue: | 14 |
Article number: | 2000442 |
Number of pages: | 9 |
Funding institution: | European Research Council (ERC)European Research Council (ERC) [648365]; Royal Society Wolfson Fellowship; Leverhulme TrustLeverhulme Trust |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Peer review: | Referiert |
Publishing method: | Open Access / Hybrid Open-Access |
License (German): | CC-BY - Namensnennung 4.0 International |