947 research outputs found
Active Colloidal Molecules
Like ordinary molecules are composed of atoms, colloidal molecules consist of
several species of colloidal particles tightly bound together. If one of these
components is self-propelled or swimming, novel "active colloidal molecules"
emerge. Active colloidal molecules exist on various levels such as
"homonuclear", "heteronuclear" and "polymeric" and possess a dynamical function
moving as propellers, spinners or rotors. Self-assembly of such active
complexes has been studied a lot recently and this perspective article
summarizes recent progress and gives an outlook to future developments in the
rapidly expanding field of active colloidal molecules
Efficient simulations of charged colloidal dispersions: A density functional approach
A numerical method is presented for first-principle simulations of charged
colloidal dispersions in electrolyte solutions. Utilizing a smoothed profile
for colloid-solvent boundaries, efficient mesoscopic simulations are enabled
for modeling dispersions of many colloidal particles exhibiting many-body
electrostatic interactions. The validity of the method was examined for simple
colloid geometries, and the efficiency was demonstrated by calculating stable
structures of two-dimensional dispersions, which resulted in the formation of
colloidal crystals.Comment: 6 pages, 4 figure
- âŠ