Colloidal crystal
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Diamond family of nanoparticle superlattices Open
Controlled colloid bonding using DNA Colloidal particles can act as analogs of atoms for studying crystallization and packing behavior, but they don't naturally bond together the way atoms do. Short strands of DNA are one versatile way to …
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Clathrate colloidal crystals Open
Turning colloidal gold into clathrates Clathrates contain extended pore structures that can trap other molecules. Lin et al. created colloidal analogs of clathrates in which bipyramidal gold nanoparticles functionalized with DNA molecules …
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Surface self-assembly of colloidal crystals for micro- and nano-patterning Open
The controlled patterning of polymeric surfaces at the micro- and nanoscale offers potential in the technological development of small-scale devices, particularly within the fields of photovoltaics, micro-optics and lab- and organ-on-chip,…
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Self-assembled three-dimensional chiral colloidal architecture Open
Precise chiral colloidal assembly A challenge for particle assembly is to bring different colloids together in a controlled and uniform way that goes beyond making lattice structures. Ben Zion et al. used DNA origami to pattern colloidal p…
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Programming Hierarchical Self-Assembly of Patchy Particles into Colloidal Crystals <i>via</i> Colloidal Molecules Open
Colloidal self-assembly is a promising bottom-up route to a wide variety of three-dimensional structures, from clusters to crystals. Programming hierarchical self-assembly of colloidal building blocks, which can give rise to structures ord…
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Particle analogs of electrons in colloidal crystals Open
Mobile particles in colloidal crystals The crystallization of nanoparticles can be controlled by functionalizing them with DNA strands that direct assembly through hybridization. The design rules for interactions between pairs of particles…
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2D Photonic Crystal Hydrogel Sensor for Tear Glucose Monitoring Open
Photonic crystal (PC) materials have huge potentials as sensors for noninvasive and real-time monitoring glucose in tears. We developed a glucose-sensitive PC material based on monolayered colloidal crystals (MCCs). Polystyrene nanoparticl…
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Template‐Free Supracolloidal Self‐Assembly of Atomically Precise Gold Nanoclusters: From 2D Colloidal Crystals to Spherical Capsids Open
We report supracolloidal self‐assembly of atomically precise and strictly monodisperse gold nanoclusters involving p ‐mercaptobenzoic acid ligands (Au 102 ‐ p MBA 44 ) under aqueous conditions into hexagonally packed monolayer‐thick two‐di…
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The diversity of three-dimensional photonic crystals Open
Many butterflies, birds, beetles, and chameleons owe their spectacular colors to the microscopic patterns within their wings, feathers, or skin. When these patterns, or photonic crystals, result in the omnidirectional reflection of commens…
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Fractionation of cellulose nanocrystals: enhancing liquid crystal ordering without promoting gelation Open
Fractionating nanorod suspensions by aspect ratio strongly affects liquid crystal formation without affecting gelation, in contrast to expectations from the classic percolation-based model. Gelation is rather triggered by increasing the co…
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Colloidal crystals with diamond symmetry at optical lengthscales Open
Future optical materials promise to do for photonics what semiconductors did for electronics, but the challenge has long been in creating the structure they require—a regular, three-dimensional array of transparent microspheres arranged li…
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Templated‐Assembly of CsPbBr<sub>3</sub> Perovskite Nanocrystals into 2D Photonic Supercrystals with Amplified Spontaneous Emission Open
Perovskite nanocrystals (NCs) have revolutionized optoelectronic devices because of their versatile optical properties. However, controlling and extending these functionalities often requires a light‐management strategy involving additiona…
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Direct‐Write Freeform Colloidal Assembly Open
Colloidal assembly is an attractive means to control material properties via hierarchy of particle composition, size, ordering, and macroscopic form. However, despite well‐established methods for assembling colloidal crystals as films and …
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Mechanochromic and Thermochromic Sensors Based on Graphene Infused Polymer Opals Open
High quality opal‐like photonic crystals containing graphene are fabricated using evaporation‐driven self‐assembly of soft polymer colloids. A miniscule amount of pristine graphene within a colloidal crystal lattice results in the formatio…
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Diamond-lattice photonic crystals assembled from DNA origami Open
Colloidal self-assembly allows rational design of structures on the micrometer and submicrometer scale. One architecture that can generate complete three-dimensional photonic bandgaps is the diamond cubic lattice, which has remained diffic…
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Gold Nanoparticles in Photonic Crystals Applications: A Review Open
This review concerns the recently emerged class of composite colloidal photonic crystals (PCs), in which gold nanoparticles (AuNPs) are included in the photonic structure. The use of composites allows achieving a strong modification of the…
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Bioinspired MXene-integrated colloidal crystal arrays for multichannel bioinformation coding Open
Significance Inspired by the wettability structure of Stenocara beetle and adhesion ability of mussel, we present an innovative MXene-integrated PhC array for multichannel bioinformation coding. The bioinspired hydrophilic–hydrophobic surf…
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Observation of solid–solid transitions in 3D crystals of colloidal superballs Open
Self-organization in anisotropic colloidal suspensions leads to a fascinating range of crystal and liquid crystal phases induced by shape alone. Simulations predict the phase behaviour of a plethora of shapes while experimental realization…
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Biaxial ferromagnetic liquid crystal colloids Open
Significance We introduce a soft-matter system with fluidity coexisting with long-range biaxial and ferromagnetic ordering of anisotropic molecular and magnetic colloidal building blocks. The facile polar switching of this complex fluid pr…
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Hydrogen Bonding Directed Colloidal Self‐Assembly of Nanoparticles into 2D Crystals, Capsids, and Supracolloidal Assemblies Open
Self‐assembly of colloidal building blocks, like metal nanoparticles, is a rapidly progressing research area toward new functional materials. However, in‐depth control of the colloidal self‐assembly and especially hierarchical self‐assembl…
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Structural Color of Colloidal Clusters as a Tool to Investigate Structure and Dynamics Open
Colloidal assemblies have applications as photonic crystals and templates for functional porous materials. While there has been significant progress in controlling colloidal assemblies into defined structures, their 3D order remains diffic…
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Ordered colloidal clusters constructed by nanocrystals with valence for efficient CO <sub>2</sub> photoreduction Open
Anisotropic nanocrystals express “valence” when assembling into functional colloidal clusters, which demonstrate high catalytic activity.
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3D printing colloidal crystal microstructures via sacrificial-scaffold-mediated two-photon lithography Open
The orderly arrangement of nanomaterials’ tiny units at the nanometer-scale accounts for a substantial part of their remarkable properties. Maintaining this orderness and meanwhile endowing the nanomaterials with highly precise and free-de…
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Programming Colloidal Crystal Habit with Anisotropic Nanoparticle Building Blocks and DNA Bonds Open
Colloidal crystallization can be programmed using building blocks consisting of a nanoparticle core and DNA bonds to form materials with controlled crystal symmetry, lattice parameters, stoichiometry, and dimensionality. Despite this diver…
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Colloidal nanocrystals for quality lighting and displays: milestones and recent developments Open
Recent advances in colloidal synthesis of nanocrystals have enabled high-quality high-efficiency light-emitting diodes, displays with significantly broader color gamut, and optically-pumped lasers spanning the whole visible regime. Here we…
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Reversible Nanoparticle Cubic Lattices in Blue Phase Liquid Crystals Open
Blue phases (BPs), a distinct class of liquid crystals (LCs) with 3D periodic ordering of double twist cylinders involving orthogonal helical director twists, have been theoretically studied as potential templates for tunable colloidal cry…
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Self-assembly of colloidal particles into amorphous photonic crystals Open
This review focuses on the introduction, fabrication, and applications of amorphous photonic crystals.
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Leveraging Hierarchical Self-Assembly Pathways for Realizing Colloidal Photonic Crystals Open
Colloidal open crystals are attractive materials, especially for their photonic applications. Self-assembly appeals as a bottom-up route for structure fabrication, but self-assembly of colloidal open crystals has proven to be elusive for t…
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Colloidal Nanocrystals as Electrocatalysts with Tunable Activity and Selectivity Open
Correlating the catalyst activity, selectivity, and stability with its structure and composition is of the utmost importance in advancing the knowledge of heterogeneous electrocatalytic processes for chemical energy conversion. Well-define…
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Inverse design of soft materials via a deep learning–based evolutionary strategy Open
Colloidal self-assembly—the spontaneous organization of colloids into ordered structures—has been considered key to produce next-generation materials. However, the present-day staggering variety of colloidal building blocks and the limitle…