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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02207
|2 doi
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|a DE-627
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|a eng
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|a Vazirieh Lenjani, Shayan
|e verfasserin
|4 aut
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| 245 |
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|a Kinetically Controlled Site-Specific Self-assembly of Hairy Colloids
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 06.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The solvophobicity-driven directional self-assembly of polymer-coated gold nanorods is a well-established phenomenon. Yet, the kinetics of this process, the origin of site-selectivity in the self-assembly, and the interplay of (attractive) solvophobic brush interactions and (repulsive) electrostatic forces are not fully understood. Herein, we use a combination of time-resolved (vis/NIR) extinction spectroscopy and finite-difference time-domain (FDTD) simulations to determine conversion profiles for the assembly of gold nanorods with polystyrene shells of distinct thicknesses into their (tip-to-tip) self-assembled structures. In particular, we demonstrate that the assembly process is highly protracted compared with diffusion-controlled rates, and we find that the assembly rate varies for different thickness values of the polymer shell. Our findings were rationalized using coarse-grained molecular dynamics simulations, which also corroborated the tip-to-tip preference in the self-assembly process, albeit with a uniform polymer coating. Utilizing the knowledge of quantified conversion rates for distinct colloidal species, we designed coassembling systems with different brush thicknesses, featuring "narcissistic" self-sorting behavior. This provides new perspectives for high-level supracolloidal self-assembly
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|a Journal Article
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|a Li, Cheng-Wu
|e verfasserin
|4 aut
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|a Seçkin, Sezer
|e verfasserin
|4 aut
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|a König, Tobias A F
|e verfasserin
|4 aut
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|a Merlitz, Holger
|e verfasserin
|4 aut
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|a Sommer, Jens-Uwe
|e verfasserin
|4 aut
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|a Rossner, Christian
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 5 vom: 06. Feb., Seite 2487-2499
|w (DE-627)NLM098181009
|x 1520-5827
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|g volume:40
|g year:2024
|g number:5
|g day:06
|g month:02
|g pages:2487-2499
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02207
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