Photoswitchable Dissipative Two‐Dimensional Colloidal Crystals

Vialetto, Jacopo; Anyfantakis, Manos; Rudiuk, Sergii; Morel, Mathieu; Baigl, Damien

doi:10.1002/anie.201904093

Cited by 45 publications

(57 citation statements)

References 46 publications

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“…The particle organization can be reversibly and dynamically actuated between a highly crystalline assembly (under UV or blue light irradiation) and a disordered state (in the dark) with a fast response time at the air–water interfaces (Figure 10). [149] The controllable crystallization and disassembly processes of the particles were driven by the light‐induced dynamic adsorption/desorption behavior of 6 at the air–water interface. In the absence of light, the suspension was composed of pure trans ‐ 6 , and the particles formed disordered structures.…”

Section: Dynamic Functions Of Photoresponsive Molecular Amphiphiles In Gibbs Monolayersmentioning

confidence: 99%

Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media

et al. 2021

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Amphiphilic molecules, comprising hydrophobic and hydrophilic moieties and the intrinsic propensity to self‐assemble in aqueous environment, sustain a fascinating spectrum of structures and functions ranging from biological membranes to ordinary soap. Facing the challenge to design responsive, adaptive, and out‐of‐equilibrium systems in water, the incorporation of photoresponsive motifs in amphiphilic molecular structures offers ample opportunity to design supramolecular systems that enables functional responses in water in a non‐invasive way using light. Here, we discuss the design of photoresponsive molecular amphiphiles, their self‐assembled structures in aqueous media and at air–water interfaces, and various approaches to arrive at adaptive and dynamic functions in isotropic and anisotropic systems, including motion at the air–water interface, foam formation, reversible nanoscale assembly, and artificial muscle function. Controlling the delicate interplay of structural design, self‐assembling conditions and external stimuli, these responsive amphiphiles open several avenues towards application such as soft adaptive materials, controlled delivery or soft actuators, bridging a gap between artificial and natural dynamic systems.

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Section: Dynamic Functions Of Photoresponsive Molecular Amphiphiles In Gibbs Monolayersmentioning

confidence: 99%

Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media

et al. 2021

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“…Because of this reason, the vast majority of the dissipative colloidal systems described to date rely on relatively small (5–50 nm) nanoparticle-sized building blocks, 22 , 32 , 109 − 117 while studies on (nearly) micrometer-sized particles are sparse. 23 , 118 − 120 …”

Section: Coupling Colloidal Assembly To Reaction Network: Design Conmentioning

confidence: 99%

“…If illumination is stopped, then thermal equilibration of the surfactant and readsorption on the air–water interface randomizes the particle orientations again. Adapted from ref ( 23 ). Copyright 2019, John Wiley and Sons.…”

Section: Light-mediated Out-of-equilibrium Assemblymentioning

confidence: 99%

Out-of-Equilibrium Colloidal Assembly Driven by Chemical Reaction Networks

et al. 2020

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Transient assembled structures play an indispensable role in a wide variety of processes fundamental to living organisms including cellular transport, cell motility, and proliferation. Typically, the formation of these transient structures is driven by the consumption of molecular fuels via dissipative reaction networks. In these networks, building blocks are converted from inactive precursor states to active (assembling) states by (a set of) irreversible chemical reactions. Since the activated state is intrinsically unstable and can be maintained only in the presence of sufficient fuel, fuel depletion results in the spontaneous disintegration of the formed superstructures. Consequently, the properties and behavior of these assembled structures are governed by the kinetics of fuel consumption rather than by their thermodynamic stability. This fuel dependency endows biological systems with unprecedented spatiotemporal adaptability and inherent self-healing capabilities. Fascinated by these unique material characteristics, coupling the assembly behavior to molecular fuel or light-driven reaction networks was recently implemented in synthetic (supra)molecular systems. In this invited feature article, we discuss recent studies demonstrating that dissipative assembly is not limited to the molecular world but can also be translated to building blocks of colloidal dimensions. We highlight crucial guiding principles for the successful design of dissipative colloidal systems and illustrate these with the current state of the art. Finally, we present our vision on the future of the field and how marrying nonequilibrium self-assembly with the functional properties associated with colloidal building blocks presents a promising route for the development of next-generation materials.

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“…Especially, stimuli‐responsive controls of 2D assemblies are important targets in materials reconfigurations. Reversible photocontrol of polystyrene microparticle motions to form 2D colloidal crystals was reported by Anyfantakis, Baigli, and co‐workers (Figure ) . Dynamic adsorption and desorption of photosensitive azobenzene‐type surfactant molecules onto microparticles can actuate particle motions in millimeter‐size 2D assembly.…”

Section: Control Of Microobjectsmentioning

confidence: 99%

2D Nanoarchitectonics: Soft Interfacial Media as Playgrounds for Microobjects, Molecular Machines, and Living Cells

Ariga

Ishii

Mori

2020

Chemistry A European J

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Soft and flexible two-dimensional (2D) systems, such as liquid interfaces, would have much more potentials in dynamic regulation on nano-macroc onnected functions. In this Minireview article, we focus especially on dynamic motional functions at liquid dynamic interfaces as 2D material systems. Severalr ecent examples are selectedt ob ee xplained for overviewing features and importance of dynamic soft interfaces in aw ide range of action systems. The exemplified research systems are mainly classified into three cate-gories:( i) controlo fm icroobjects with motional regulations; (ii)control of molecular machines with functions of target discriminationa nd optical outputs; (iii)control of living cells including molecular machine functions at cell membranes and cell/biomolecular behaviors at liquid interface. Sciences on soft 2D media with motional freedom and their nanoarchitectonics constructions will have increased importance in future technology in addition to popularr igid solid 2D materials.

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Photoswitchable Dissipative Two‐Dimensional Colloidal Crystals

Abstract: Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Cited by 45 publications

References 46 publications

Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media

Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media

Out-of-Equilibrium Colloidal Assembly Driven by Chemical Reaction Networks

2D Nanoarchitectonics: Soft Interfacial Media as Playgrounds for Microobjects, Molecular Machines, and Living Cells

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