Giuseppe Foffi

Cette personne n’est plus à l’EPFL

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Publications associées (27)

Apollonian packings as physical fractals

Francesco Varrato, Giuseppe Foffi

The Apollonian packings (APs) of spheres are fractals that result from a space-filling procedure. We discuss the finite size effects for finite intervals s is an element of [s(min), s(max)] between the largest and the smallest sizes of the filling spheres. ...

Taylor & Francis2011

Resonances arising from hydrodynamic memory in Brownian motion

László Forró, Flavio Maurizio Mor, Giuseppe Foffi, Sylvia Jeney, Maxim Belushkin, Matthias Grimm

Observation of the Brownian motion of a small probe interacting with its environment provides one of the main strategies for characterizing soft matter. Essentially, two counteracting forces govern the motion of the Brownian particle. First, the particle i ...

2011

Apollonian packings as physical fractals

Francesco Varrato, Giuseppe Foffi

Taylor & Francis2011

Effective Forces in Square Well and Square Shoulder Fluids

Giuseppe Foffi, Davide Fiocco

We derive an analytical expression for the effective force between a pair of macrospheres immersed in a sea of microspheres, in the case where the interaction between the two unlike species is assumed to be a square well or a square shoulder of given range ...

American Chemical Society2010

Inertial effects in diffusion-limited reactions

Nicolas Dorsaz, Giuseppe Foffi, Francesco Piazza

Diffusion-limited reactions are commonly found in biochemical processes such as enzyme catalysis, colloid and protein aggregation and binding between different macromolecules in cells. Usually, such reactions are modeled within the Smoluchowski framework b ...

Institute of Physics2010

Phase behaviour of the symmetric binary mixture from Thermodynamic Perturbation Theory

Nicolas Dorsaz, Giuseppe Foffi

We study the phase behaviour of symmetric binary mixtures of hard core Yukawa (HCY) particles via thermodynamic perturbation theory (TPT). We show that all the topologies of phase diagram reported for the symmetric binary mixtures are correctly reproduced ...

2010

Spinodal surface of a free energy model for eye lens protein mixtures: Relevance for cataracts

Nicolas Dorsaz, Giuseppe Foffi

We studied the phase behavior of a model binary mixture of eye lens crystallin proteins using first-order thermodynamic perturbation theory. The instability boundary, or spinodal surface, was found to be very sensitive to the strength of the attraction bet ...

Amer Inst Physics, 2 Huntington Quadrangle, Ste 1No1 D, Melville, Ny 11747-4501 Usa2009

Colloidal characterization and thermodynamic stability of binary eye lens protein mixtures

Nicolas Dorsaz, Giuseppe Foffi

We present a study of binary mixtures of eye lens crystallin proteins. A coarse-grained model of aqueous aand γ-crystallin mixtures based on molecular dynamics simulations and SANS experiments is proposed. Thermodynamic perturbation theory is implemented t ...

2009

A method for the enumeration of the floppy modes and the calculation of the associated entropy

Giuseppe Foffi

We present a method that is based on the Ladd-Frenkel (LF) thermodynamic integration for the study of the rigidity of networks of particles bonded together by short-ranged square well attractive potentials. We show that, by taking the limit of the attracti ...

2008

Short range attractive colloids: Dynamics and energy landscape properties

Giuseppe Foffi

We discuss the static and dynamical properties of a model of short range attractive colloidal systems. Our model is a binary mixture of particles interacting with a modified Lennard-Jones potential that we simulated by molecular dynamics. As previously fou ...

2008

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