F. Spaepen
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View article: Incongruent Melting and Phase Diagram of SiC from Machine Learning Molecular Dynamics
Incongruent Melting and Phase Diagram of SiC from Machine Learning Molecular Dynamics Open
Silicon carbide (SiC) is an important technological material, but its high-temperature phase diagram has remained unclear due to conflicting experimental results about congruent versus incongruent melting. Here, we employ large-scale machi…
View article: Biomolecular condensates with complex architectures via controlled nucleation
Biomolecular condensates with complex architectures via controlled nucleation Open
The structure and function of biomolecular condensates are closely related. However, many studies and applications of this relationship are prevented because controlling the mesoscale architecture of condensates can be difficult. Here we i…
View article: Work hardening in colloidal crystals
Work hardening in colloidal crystals Open
Colloidal crystals exhibit interesting properties 1–4 that are in many ways analogous to their atomic counterparts. They have the same crystal structures 2,5–7 , undergo the same phase transitions 8–10 , and possess the same crystallograph…
View article: Work hardening in colloidal crystals
Work hardening in colloidal crystals Open
Colloidal crystals are fascinating materials1-4. They exhibit a rich behavior that is in many ways analogous to their atomic counterparts: they have the same crystal structures2,5-7; they undergo the same phase transitions8-10; and they po…
View article: Unexpected Dynamics in the Propagation of Fracture Fronts
Unexpected Dynamics in the Propagation of Fracture Fronts Open
Fractures are ubiquitous and lead to catastrophic failure of materials. While fracture in a two-dimensional plane is well understood, all fractures are, in fact, extended and propagate in a three-dimensional space and their behavior is mor…
View article: Improved tracking of particles with highly correlated motion
Improved tracking of particles with highly correlated motion Open
Despite significant advances in particle imaging technologies over the past two decades, few advances have been made in particle tracking, i.e. linking individual particle positions across time series data. The state-of-the-art tracking al…
View article: Microscopic origins of the crystallographically preferred growth in evaporation-induced colloidal crystals
Microscopic origins of the crystallographically preferred growth in evaporation-induced colloidal crystals Open
Significance Self-assembly is one of the central themes in biologically controlled synthesis, and it also plays a pivotal role in fabricating a variety of advanced engineering materials. In particular, evaporation-induced self-assembly of …
View article: Stiffness of the interface between a colloidal body-centered cubic crystal and its liquid
Stiffness of the interface between a colloidal body-centered cubic crystal and its liquid Open
Significance This paper reports the experimental determination of the stiffness of the interface between a body-centered cubic crystal and its liquid using colloids controlled by dielectrophoresis in an electric bottle. That the measured v…
View article: Measurement of the stiffness of hard-sphere colloidal crystal-liquid interfaces
Measurement of the stiffness of hard-sphere colloidal crystal-liquid interfaces Open
We investigated the stiffness of the interfaces between hard-sphere colloidal face-centered cubic crystals sedimented onto (100), (110), and (111) oriented templates and their equilibrium liquid with special attention to the in-plane aniso…
View article: Direct observation of crystallization and melting with colloids
Direct observation of crystallization and melting with colloids Open
Significance This paper reports on colloid experiments that provide a unique 3D experimental view at the particle level of the fundamental mechanism by which liquids crystallize and crystals melt. Since these mechanisms cannot be observed …
View article: Direct Observation of Entropic Stabilization of bcc Crystals Near Melting
Direct Observation of Entropic Stabilization of bcc Crystals Near Melting Open
Crystals with low latent heat are predicted to melt from an entropically stabilized body-centered cubic symmetry. At this weakly first-order transition, strongly correlated fluctuations are expected to emerge, which could change the nature…
View article: The microfluidic nebulator: production of sub-micrometer sized airborne drops
The microfluidic nebulator: production of sub-micrometer sized airborne drops Open
Many powders employed in the food and pharmaceutical industries are produced through spray drying because it is a cost efficient process that offers control over the particle size.
View article: Publisher's Note: Imaging grain boundary grooves in hard-sphere colloidal bicrystals [Phys. Rev. E 94, 042604 (2016)]
Publisher's Note: Imaging grain boundary grooves in hard-sphere colloidal bicrystals [Phys. Rev. E 94, 042604 (2016)] Open
This corrects the article DOI: 10.1103/PhysRevE.94.042604.
View article: Imaging grain boundary grooves in hard-sphere colloidal bicrystals
Imaging grain boundary grooves in hard-sphere colloidal bicrystals Open
Colloidal particles were sedimented onto patterned glass slides to grow three-dimensional bicrystals with a controlled structure. Three types of symmetric tilt grain boundaries between close-packed face-centered-cubic crystals were produce…
View article: Stabilization of the Amorphous Structure of Spray-Dried Drug Nanoparticles
Stabilization of the Amorphous Structure of Spray-Dried Drug Nanoparticles Open
The bioavailability of hydrophobic drugs strongly increases if they are formulated as amorphous materials because the solubility of the amorphous phase is much higher than that of the crystal. Moreover, the stability of these particles aga…
View article: Production of amorphous nanoparticles by supersonic spray-drying with a microfluidic nebulator
Production of amorphous nanoparticles by supersonic spray-drying with a microfluidic nebulator Open
Crystal nuclei beaten to the punch Amorphous nanoparticles often dissolve more rapidly than their crystalline counterparts, which can be useful in applications such as drug delivery. Amstad et al. made amorphous nanoparticles from organic …
View article: Anisotropic elasticity of experimental colloidal Wigner crystals
Anisotropic elasticity of experimental colloidal Wigner crystals Open
Colloidal particles interacting via a long-range repulsion can, in contrast to hard-sphere systems, exhibit crystalline ordering at low volume fraction. Here we experimentally investigate the structure and properties of such "colloidal Wig…
View article: Crystallization of undercooled liquid fenofibrate
Crystallization of undercooled liquid fenofibrate Open
Crystallization of undercooled liquid fenofibrate, a model hydrophobic drug.