142 citations · 444 across the 19 of their papers we have counts for
19 papers
Acousto-microfluidic Control of Liquid Crystals
Gustavo A. Vasquez-Montoya, Tadej Emersic, Noe Atzin +7
The optical properties of liquid crystals serve as the basis for display, diagnostic, and sensing technologies. Such properties are generally controlled by relying on electric fiel…
Dynamics of active defects on the anisotropic surface of an ellipsoidal droplet
Martina Clairand, Ali Mozaffari, Jérôme Hardoüin +6
Cells are fundamental building blocks of living organisms displaying an array of shapes, morphologies, and textures that encode specific functions and physical behaviors. Elucidati…
Generation and propagation of solitary waves in nematic liquid crystals
Xingzhou Tang, Ali Mozaffari, Noe Atzin +3
Solitons in nematic liquid crystals offer intriguing opportunities for transport and sensing in microfluidic systems. Little is known about the elementary conditions that are neede…
A minimal model of solitons in nematic liquid crystals
Noe Atzin, Ali Mozaffari, Xingzhou Tang +3
Solitons in liquid crystals have generated considerable interest. Several hypotheses of varying complexity have been advanced to explain how they emerge, and a consensus has not em…
Transformation between elastic dipoles, quadrupoles, octupoles and hexadecapoles driven by surfactant self-assembly in nematic emulsion
Bohdan Senyuk, Ali Mozaffari, Kevin Crust +3
Emulsions comprising isotropic fluid drops within a nematic host are of interest for applications ranging from biodetection to smart windows, which rely on changes of molecular ali…
Defect Spirograph: Dynamical Behavior of Defects in Spatially Patterned Active Nematics
Ali Mozaffari, Rui Zhang, Noe Atzin +1
Topological defects in active liquid crystals can be confined by introducing gradients of activity. Here, we examine the dynamical behavior of two defects confined by a sharp gradi…
Structuring Stress for Active Materials Control
Rui Zhang, Steven A. Redford, Paul V. Ruijgrok +8
Active materials are capable of converting free energy into mechanical work to produce autonomous motion, and exhibit striking collective dynamics that biology relies on for essent…
Self-Propelled Colloidal Particle Near a Planar Wall: A Brownian Dynamics Study
Ali Mozaffari, Nima Sharifi-Mood, Joel Koplik +1
Miniaturized, self-propelled locomotors use chemo-mechanical transduction mechanisms to convert fuel in the environment to autonomous motion. Recent experimental and theoretical st…
Testing General Free Functions in Preferred Scale Theories
Ali Mozaffari
Building on previous work, we explore the parameter space of general free functions in non-relativistic modified gravity theories motivated by k-essence and other scalar-tensor the…
Pair Interaction of Catalytically Active Colloids: From Assembly to Escape
Nima Sharifi-Mood, Ali Mozaffari, Ubaldo Córdova-Figueroa
The dynamics and pair trajectory of two self-propelled colloids are reported. The autonomous motions of the colloids are due to a catalytic chemical reaction taking place asymmetri…
Self-Diffusiophoretic Colloidal Propulsion Near a Solid Boundary
Ali Mozaffari, Nima Sharifi-Mood, Joel Koplik +1
We study the diffusiophoretic self-propulsion of a colloidal catalytic particle due to a surface chemical reaction in a vicinity of a solid wall. Diffusiophoresis is a chemico-mech…
Screening Solutions in Modified Gravity Theories
Ali Mozaffari
In this work, we illustrate through a simple example the possibility of testing the chameleon screening mechanism in the Solar System using the forthcoming LISA Pathfinder mission…
Tests of Modified Gravity Theories in the Solar System
Ali Mozaffari
We review the case for testing preferred acceleration scale theories of gravity (sometimes falling under the guise of MOdified Newtonian Dynamics) in the Solar System using the for…
Parameterised free functions and saddle stresses in modified gravity
Ali Mozaffari
Building on previous work, we explore the parameter space of free functions in non-relativistic modified gravity theories more widely, showing that in fact the two broad regimes pr…
Time delays across saddles as a test of modified gravity
Joao Magueijo, Ali Mozaffari
Modified gravity theories can produce strong signals in the vicinity of the saddles of the total gravitational potential. In a sub-class of these models this translates into diverg…
Saddle stresses for generic theories with a preferred acceleration scale
Joao Magueijo, Ali Mozaffari
We show how scaling arguments may be used to generate templates for the tidal stresses around saddles for a vast class of MONDian theories {\it detached from their obligations as d…
Differentiating Between Modified Gravity Theories in the Solar System
Ali Mozaffari
Building on previous work, we re-examine the possibility of testing MOdified Newtonian Dynamics near the saddle points of gravitational potentials in the Solar System, through an e…
The case for testing MOND using LISA Pathfinder
Joao Magueijo, Ali Mozaffari
We quantify the potential for testing MOdified Newtonian Dynamics (MOND) with LISA Pathfinder (LPF), should a saddle point flyby be incorporated into the mission. We forecast the e…
Simple generalizations of Anti-de Sitter space-time
Joao Magueijo, Ali Mozaffari
We consider new cosmological solutions which generalize the cosmological patch of the Anti-de Sitter (AdS) space-time, allowing for fluids with equations of state such that $w\neq…