Programming Hierarchical Self-Assembly of Patchy Particles into Colloidal Crystals <i>via</i> Colloidal Molecules

Morphew, Daniel; Shaw, James G.; Avins, Christopher; Chakrabarti, Dwaipayan

doi:10.1021/acsnano.7b07633

Cited by 109 publications

(107 citation statements)

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“…We accounted for such a striking correspondence between the energetics and kinetics for optimal design principles, which should have general implications for programming hierarchical self-assembly pathways for nano-and micro-particles, while matching stability and accessibility. 19 The present scenario should be distinguished from those, where thermodynamic control or kinetic control prevails so that a structure is observed either because it is the most stable state or because the pathway leading to it has the lowest free energy barrier. 39 We further note that it is quite likely that an experimental system would have some degree of dispersity in the dipole direction.…”

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confidence: 94%

“…Such a framework is crucially important to address the challenges of a multiscale design problem, arising from the requirement of bridging hierarchies of multiple length-and time-scales, associated with structure and dynamics respectively, along the self-assembly pathway. 19 Harnessing the enormous potential for colloidal self-assembly to offer a bottom-up route to structure fabrication critically hinges on our ability to manipulate the interactions between the colloidal particles such that a target structure is not only thermodynamically favorable, but also kinetically accessible on experimental time scales. 6,14,20 This task becomes even more formidable in the context of hierarchical self-assembly.…”

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confidence: 99%

“…While our designer building blocks closely resemble recently synthesized colloidal magnetic particles, 31 our results suggest design principles, which should have general implications for programming hierarchical self-assembly of nano-and microparticles. 19 While magnetic colloidal particles are classic examples of microscale building blocks with anisotropic interactions, 32 recent years have experienced a surge in the synthesis of exotic colloidal magnetic particles. 31,33 Having drawn motivation from these research activities, a number of computational studies have focused on spherical magnetic colloids with an additional anisotropy attribute in terms of an off-centered point-dipole.…”

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confidence: 99%

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Programming hierarchical self-assembly of colloids: matching stability and accessibility

Morphew

Chakrabarti

2018

Nanoscale

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Encoding hierarchical self-assembly in colloidal building blocks is a promising bottom-up route to high-level structural complexity often observed in biological materials. However, harnessing this promise faces the grand challenge of bridging hierarchies of multiple length-and time-scales, associated with structure and dynamics respectively along the self-assembly pathway. Here we report on a case study, which examines the kinetic accessibility of a series of hollow spherical structures with a two-level structural hierarchy self-assembled from charge-stabilized colloidal magnetic particles. By means of a variety of computational methods, we find that for a staged assembly pathway, the structure, which derives the strongest energetic stability from the first stage of assembly and the weakest from the second stage, is most kinetically accessible. Such a striking correspondence between energetics and kinetics for optimal design principles should have general implications for programming hierarchical self-assembly pathways for nano-and micro-particles, while matching stability and accessibility.Self-assembly of colloidal particles offers tremendous opportunities for fabricating three-dimensional structures in a bottom-up approach due to the scope for tuning the interparticle interactions.1,2 Recent advances in the synthesis of complex colloidal particles have made a wide variety of nanoand micro-scale building blocks available. Many of these colloidal building blocks involve anisotropic interparticle interactions, often due to either anisotropic shape or heterogeneous surface chemistry. 2-5 These novel colloidal particles offer rich avenues for programming colloidal self-assembly.6,7Hierarchical self-assembly of nano-and micro-particles is emerging as an attractive route to structural organization at a higher level, spanning multiple length scales. 8,9 Notably, the hierarchical self-assembly of mono-disperse colloidal octapodshaped nanocrystals resulted in a three-dimensional superlattice via the formation of linear chains of interlocked octapods. 10 The assembly of binary and ternary patchy nanoparticles produced supracolloidal ordered structures in a hierarchical scheme. 11 The 'patchiness' of colloidal triblock spherical particles was exploited to encode staged self-assembly triggered by stepwise changes of the ionic strength of the medium. 12 A computational study demonstrated an alternative scheme for patchiness without engineered surfaces en route to a variety of complex superstructures via hierarchical selfassembly. 13 A theoretical analysis was presented for programming self-assembly of octopus nanoparticles, which themselves may be self-assembled, into a target nanostructure.

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confidence: 99%

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confidence: 99%

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Programming hierarchical self-assembly of colloids: matching stability and accessibility

Morphew

Chakrabarti

2018

Nanoscale

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“…The recent efforts to produce CMs have also been fuelled by the aspiration to utilize them for building new hierarchically organized superstructures and ultimately, functional materials, by self‐assembly . Recent works on mobile DNA links show that one can control the sequence of CMs assembly .…”

Section: Discussionmentioning

confidence: 99%

“…The recent efforts to produce CMs have also been fuelledb y the aspirationtoutilize them for buildingnew hierarchically or-ganized superstructures and ultimately,f unctional materials, by self-assembly. [8,74] Recent works on mobile DNA links show that one can controlt he sequence of CMs assembly. [75] This result, which reminds us the reactivity of organic molecules that can be temporarily protected,o pens new routes for the production of colloidal superstructures.…”

Section: Conclusiona Nd Outlookmentioning

confidence: 99%

Synthesis of Colloidal Molecules: Recent Advances and Perspectives

Merindol

Duguet

Ravaine

2019

Chemistry An Asian Journal

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The synthesis and study of colloidal molecules, that is to say clusters of a small number of colloidal entities that resemble the configuration of atoms in molecules both in constituent size and angular arrangement to that of valence shell electron pair repulsion model‐related space‐filling geometries, are of continued and significant interest. The rapid development in this research area has attracted intense interest from researchers with diverse expertise, and numerous methods towards the synthesis of colloidal molecules have been reported. In this Minireview, we attempt to give an overview of these latest developments, classifying them in processes based on controlled phase separation phenomena, on controlled surface nucleation and growth, and on controlled clustering. We also discuss the potential use of colloidal molecules as building blocks to fabricate new hierarchically organized superstructures and functional materials.

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Synthetic Self‐Limiting Structures Engineered with Defective Colloidal Clusters

Parvez

Zanjani

2020

Adv Funct Materials

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One of the key challenges in the study of self-assembly with synthetic particles is how to build finite-sized constructs that resemble self-limiting structures such as well-known proteins and biomolecules found in nature. Inspired by this concept, a novel method for realizing self-limiting selfassembly of colloidal clusters by establishing design rules to obtain desired final structures using a bottom-up assembly approach is presented. The constructs identified in this work will be "locked" in a well-defined configuration as the structure morphologies will not allow them to grow any further. The approach presented here provides two distinct advantages. First, the selflimiting characteristics of the resulting constructs are preserved no matter how many building blocks are present within the system. Second, the setup of interparticle interactions reflected by interaction matrices are much simpler compared to finite-sized structures of simple spherical particles which may require engineering pairwise interactions between as many particle types as the number of particles present in the system. The self-assembly process as well as phase transformation and kinetics of several intriguing finite-sized configurations are studied. Possible extensions of this concept to produce sophisticated multi-phased structures where different types of finite-sized and large assemblies may be present at once are also discussed.

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Programming Hierarchical Self-Assembly of Patchy Particles into Colloidal Crystals via Colloidal Molecules

Cited by 109 publications

References 50 publications

Programming hierarchical self-assembly of colloids: matching stability and accessibility

Programming hierarchical self-assembly of colloids: matching stability and accessibility

Synthesis of Colloidal Molecules: Recent Advances and Perspectives

Synthetic Self‐Limiting Structures Engineered with Defective Colloidal Clusters

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