The simplicity of hard spheres as a model system is deceptive. Although the particles
interact solely through volume exclusion, that nevertheless suffices for a wealth of static and …

Colloidal gels constitute an important class of materials found in many contexts and with a
wide range of applications. Yet as matter far from equilibrium, gels exhibit a variety of time …

Understanding the interactions between small, submicrometer-sized colloidal particles is
crucial for numerous scientific disciplines and technological applications. In this study, we …

Hyperuniformity characterizes a state of matter for which (scaled) density fluctuations
diminish towards zero at the largest length scales. However, the task of determining whether …

Colloids are suspensions of small solid particles in a liquid and exhibit glassy behavior
when the particle concentration is high. In these samples, the particles are roughly …

Confocal microscopy in combination with real-space particle tracking has proven to be a
powerful tool in scientific fields such as soft matter physics, materials science and cell …

We have investigated concentrated suspensions of polydisperse hard spheres and have
determined the dynamics and sizes of individual particles using confocal microscopy. With …

Imaging the (sub) micron scale over large areas with high temporal resolution becomes
increasingly necessary for the development and investigation of novel materials under …

Accurate analysis of pair correlations in condensed matter allows us to establish relations
between structures and thermodynamic properties and, thus, is of high importance for a wide …

The objectives of this study were to develop and measure the hydrodynamic particle size of
sildenafil citrate nanoparticles dispersed in a pressurized metered-dose inhaler (pMDI) …