Large equilibrium clusters in low-density aqueous suspensions of polyelectrolyte-liposome complexes: a phenomenological model.
In this paper, we revisit some of our previous results together with further experimental evidences for the existence of large equilibrium clusters in low-density aqueous colloidal suspensions, resulting from the screening of charged spherical macroions by oppositely charged linear polyelectrolytes. The aggregation process is described by a simple phenomenological model where aggregates interact via a long-range repulsion Yukawa potential and some supports to the equilibrium properties of the resulting aggregates, on the basis of dynamic light scattering, zeta potential, and transmission electron microscopy techniques, have been provided.
Bordi
F
F
Dipartimento di Fisica, Universitá di Roma La Sapienza, Piazzale Aldo Moro 5, I-00185-Rome, Italy.
Cametti
C
C
Diociaiuti
M
M
Sennato
S
S
D003102:Colloids / Q000032:analysis / Q000737:chemistry*; D045424:Complex Mixtures / Q000032:analysis / Q000737:chemistry; D003198:Computer Simulation; D004573:Electrolytes / Q000032:analysis / Q000737:chemistry*; D008081:Liposomes / Q000032:analysis / Q000737:chemistry*; D008956:Models, Chemical; D010316:Particle Size; D044367:Phase Transition; D012996:Solutions; D055672:Static Electricity; D014867:Water / Q000737:chemistry*
D003102:Colloids; D045424:Complex Mixtures; D004573:Electrolytes; D008081:Liposomes; D012996:Solutions; D014867:Water