Janus Colloidal Matchsticks

Chaudhary, Kundan; Chen, Qian; Juárez, Jaime J.; Granick, Steve; Lewis, Jennifer A.

doi:10.1021/ja305067g

Cited by 81 publications

(78 citation statements)

References 18 publications

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“…162 When focusing on one-component systems of anisotropic particles decorated with anisotropic bonding patterns, most of the results accumulated so far in the literature deal with Janus-like nonspherical entities -mainly elongated shapes carrying one or at most two patches -assembling into a vast variety of fiber-like structures with diverse applications. Janus nano-cylinders that form vertical, horizontal or even smectic arrays, 163,164 ellipsoids with one patch in a Janus-like or ''kayak'' fashion that form ordered assemblies 165 or even field-sensitive colloidal fibers, 166 ''Mickey Mouse''-shaped colloidal molecules that form tubular aggregates, 167 and silica rods coated with gold tips that self-assemble into different multipods 168 are just a few examples. The susceptibility of Janus-like anisotropic units to external fields can also be used to drive the assembly into string-like structures.…”

Section: Non-spherical Patchy Colloidsmentioning

confidence: 99%

Limiting the valence: advancements and new perspectives on patchy colloids, soft functionalized nanoparticles and biomolecules

Bianchi

Capone

Coluzza

et al. 2017

Phys. Chem. Chem. Phys.

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Limited bonding valence, usually accompanied by well-defined directional interactions and selective bonding mechanisms, is nowadays considered among the key ingredients to create complex structures with tailored properties: even though isotropically interacting units already guarantee access to a vast range of functional materials, anisotropic interactions can provide extra instructions to steer the assembly of specific architectures. The anisotropy of effective interactions gives rise to a wealth of self-assembled structures both in the realm of suitably synthesized nano-and micro-sized building blocks and in nature, where the isotropy of interactions is often a zero-th order description of the complicated reality.In this review, we span a vast range of systems characterized by limited bonding valence, from patchy colloids of new generation to polymer-based functionalized nanoparticles, DNA-based systems and proteins, and describe how the interaction patterns of the single building blocks can be designed to tailor the properties of the target final structures.

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Section: Non-spherical Patchy Colloidsmentioning

confidence: 99%

Limiting the valence: advancements and new perspectives on patchy colloids, soft functionalized nanoparticles and biomolecules

Bianchi

Capone

Coluzza

et al. 2017

Phys. Chem. Chem. Phys.

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“…Reproduced with permissions from Ref. . Copyright (2012, 2015, 2015, 2016) American Chemical Society.…”

Section: Shape Modificationmentioning

confidence: 99%

Finite‐Sized One‐Dimensional Silica Microstructures (Rods): Synthesis, Assembly, and Applications

Sharma

2017

ChemNanoMat

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Colloidal silica structures are very important for applications such as superhydrophobic, oleophobic, icephobic, and anti‐biofouling coatings, polymer–ceramic or metal–matrix composites, photon management, catalyst support, and drug delivery. In addition to various types of silica structures, a unique structure—silica rods—has been synthesized by employing the emulsion droplets made by adding water and citrate to polyvinylpyrrolidone pentanol solution. While significant progress has been made in modifying rod shape and chemistry, in rod assembly, and in rod applications, however, no review article has discussed the progress in this field. This Focus Review intends to highlight the developments in the synthesis, assembly, and application of these rods, and discuss the remaining challenges for precise control of size and shape, possible solutions, and potential applications.

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“…A central vision is to design these particles such that they can self-assemble into simple or complex architectures3910. Janus or patchy particles can be fabricated by various means11121314 and, recently, several experimental realizations of their self-organization have been reported, which include self-assembly of colloidal patchy spheres into colloidal kagome lattices15, colloidal ‘molecules’16 and other structures171819.…”

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confidence: 99%

Electroformation of Janus and patchy capsules

et al. 2014

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Janus and patchy particles have designed heterogeneous surfaces that consist of two or several patches with different materials properties. These particles are emerging as building blocks for a new class of soft matter and functional materials. Here we introduce a route for forming heterogeneous capsules by producing highly ordered jammed colloidal shells of various shapes with domains of controlled size and composition. These structures combine the functionalities offered by Janus or patchy particles, and those given by permeable shells such as colloidosomes. The simple assembly route involves the synergetic action of electro-hydrodynamic flow and electro-coalescence. We demonstrate that the method is robust and straightforwardly extendable to production of multi-patchy capsules. This forms a starting point for producing patchy colloidosomes with domains of anisotropic chemical surface properties, permeability or mixed liquid–solid phase domains, which could be exploited to produce functional emulsions, light and hollow supra-colloidosome structures, or scaffolds.

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Janus Colloidal Matchsticks

Cited by 81 publications

References 18 publications

Limiting the valence: advancements and new perspectives on patchy colloids, soft functionalized nanoparticles and biomolecules

Limiting the valence: advancements and new perspectives on patchy colloids, soft functionalized nanoparticles and biomolecules

Finite‐Sized One‐Dimensional Silica Microstructures (Rods): Synthesis, Assembly, and Applications

Electroformation of Janus and patchy capsules

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