Photoresponsive Hybrid Raspberry‐Like Colloids Based on Cucurbit[8]uril Host–Guest Interactions

Yang, Lan; Karas, Athan; Scherman, Oren A.

doi:10.1002/ange.201309204

Cited by 15 publications

(2 citation statements)

References 41 publications

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“…25,[41][42][43][44][45][46] The utility of hostguest complexes is multifold. Macrocycles (e.g., cyclodextrins, 33 calixarenes, 47 cucurbiturils, 48 pillararenes, 49 and cyclophanes 50 ) capable of encapsulating a wide variety of ions, small molecules, oligomers, and other desirable species have been reported, making the engineering of a suitable system a versatile and relatively modular approach.…”

Section: Introductionmentioning

confidence: 99%

Redox-Responsive Viologen-Mediated Self-Assembly of CB[7]-Modified Patchy Particles

et al. 2016

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Sulfonated surface patches of poly(styrene)-based colloidal particles (CPs) were functionalized with cucurbit[7]uril (CB[7]). The macrocycles served as recognition units for diphenyl viologen (DPV(2+)), a rigid bridging ligand. The addition of DPV(2+) to aqueous suspensions of the particles triggered the self-assembly of short linear and branched chainlike structures. The self-assembly mechanism is based on hydrophobic/ion-charge interactions that are established between DPV(2+) and surface-adsorbed CB[7]. DPV(2+) guides the self-assembly of the CPs by forming a ternary DPV(2+)⊂(CB[7])2 complex in which the two CB[7] macrocycles are attached to two different particles. Viologen-driven particle assembly was found to be both directional and reversible. Whereas sodium chloride triggers irreversible particle disassembly, the one-electron reduction of DPV(2+) with sodium dithionite causes disassembly that can be reversed via air oxidation. Thus, this bottom-up synthetic supramolecular approach allowed for the reversible formation and directional alignment of a 2D colloidal material.

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Section: Introductionmentioning

confidence: 99%

Redox-Responsive Viologen-Mediated Self-Assembly of CB[7]-Modified Patchy Particles

et al. 2016

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“…Many remarkable achievements have been obtained so far. Among inorganic seeds such as SiO 2 − and Fe 3 O 4 , SiO 2 is widely used. However, they could not be swollen by monomers, and this has restricted the formation of diverse morphologies of composite particles.…”

Section: Introductionmentioning

confidence: 99%

Intriguing Morphology Evolution from Noncrosslinked Poly(tert-butyl acrylate) Seeds with Polar Functional Groups in Soap-Free Emulsion Polymerization of Styrene

et al. 2016

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Herein, we demonstrate a facile approach to prepare anisotropic poly(tert-butyl acrylate)/polystyrene (PtBA/PS) composite particles with controllable morphologies by soap-free seeded emulsion polymerization (SSEP). In the first step, noncrosslinked PtBA seeds with self-stabilizing polar functional groups (e.g., ester groups and radicals) are synthesized by soap-free emulsion polymerization. During the subsequent SSEP of styrene (St), PS bulges are nucleated on the PtBA seeds due to the microphase separation confined in the latex particles. The morphology evolution of PtBA/PS composite particles is tailored by varying the monomer/seed feed ratio, polymerization time, and polymerization temperature. Many intriguing morphologies, including hamburger-like, litchi-like, mushroom-like, strawberry-like, bowl-like, and snowman-like, have been acquired for PtBA/PS composite particles. The polar groups on the PtBA seed surface greatly influence the formation and further merging of PS/St bulges during the polymerization. A possible formation mechanism is proposed on the basis of experimental results. These complex composite particles are promising for applications in superhydrophobic coatings.

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Light‐Controlled [3]Pseudorotaxane Based on Tetrasulfonated 1,5‐Dinaphtho‐32‐Crown‐8 and α‐Cyclodextrin

Wang

Zhang

et al. 2015

Asian J Org Chem

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The synthesis of advanced molecular machines represents one of the significant topics in supramolecular chemistry. In this work, a multicomponent molecular machine was successfully constructed by the inclusion complexation of azophenyl derivative bearing pyridinium terminals (G1) with α-cyclodextrin (α-CD) and tetrasulfonated 1,5-dinaphtho-32-crown-8 (DNC) in water, which was comprehensively characterized

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Photoresponsive Hybrid Raspberry‐Like Colloids Based on Cucurbit[8]uril Host–Guest Interactions

Cited by 15 publications

References 41 publications

Redox-Responsive Viologen-Mediated Self-Assembly of CB[7]-Modified Patchy Particles

Redox-Responsive Viologen-Mediated Self-Assembly of CB[7]-Modified Patchy Particles

Intriguing Morphology Evolution from Noncrosslinked Poly(tert-butyl acrylate) Seeds with Polar Functional Groups in Soap-Free Emulsion Polymerization of Styrene

Light‐Controlled [3]Pseudorotaxane Based on Tetrasulfonated 1,5‐Dinaphtho‐32‐Crown‐8 and α‐Cyclodextrin

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