Abstract Dense active systems are widespread in nature, examples range from bacterial colonies to biological tissues. clusters of particles can be obtained by increasing the packing fraction system or taking advantage a peculiar phenomenon named motility-induced phase separation (MIPS). In this work, we explore diagram two-dimensional model glass and show that disordered materials develop rich ...

We investigate the phase behavior and kinetics of a monodisperse mixture of active (i.e., self-propelled) and passive isometric Brownian particles through Brownian dynamics simulations and theory. As in a purely active system, motility of the active component triggers phase separation into a dense and a dilute phase; in the dense phase, we further find active-passive segregation, with "rafts" o...

In the phase diagram of the protein hen egg-white lysozyme, a region is present in which the lysozyme solution demixes and forms two liquid phases. In situ observations by optical microscopy show that the dense liquid droplets dissolve when crystals grow in this system. During this process the demixed liquid region retracts from the crystal surface. The spatial distribution of the dense phase d...

The Regional Superfund Ground Water Forum is a group of EPA professionals representing EPA’s Regional Superfund Offices, committed to the identification and the resolution of ground water issues impacting the remediation of Superfund sites. The Forum is supported by and advises the Superfund Technical Support Project. Dense nonaqueous phase liquids is an issue identified by the Forum as a conce...