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Showing 1 to 5 of 5 for “"Janus Colloids"”.
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Collective behavior of driven Janus colloids in external fields
Colloids are micron-sized particles widely used in industrial processes and everyday products. Conventional interest has focused on their equilibrium self-assembly structures by engineering static interactions between the colloids. The introduction of the fourth dimension, time, gives rise to a new …
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Dynamics and assembly of colloidal particles
… Chapter 7, I explain how prototypical two-faced Janus colloids form into elongated helical structures (which are not global free-energy minima) through kinetic pathway selection. Finally, in Chapter 8, I examine how hydrodynamics influences the dynamics of a Janus particle having stick–slip …
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Magnetic Manipulation and Assembly of Multi-component Particle Suspensions
… shaped particles, such as microrods and Janus colloids. </p><p> Throughout this work, both conventional magnetophoresis and inverse magnetophoresis techniques were employed, the latter relying on ferrofluid, i.e. a suspension of magnetic nanoparticles in a nonmagnetic carrier fluid, which …
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Synthesis and self-assembly of multiblock and Janus particles
… blocks and interaction patterns of patchy colloids in liquid suspension, towards the long-term goal of developing the practical capability to make a colloidal structure, or any colloidal material, that is “assemblable”. Two levels of efforts are included in this thesis, first, the …
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Imaging the dynamics of soft materials at microscale and nanoscale
… materials in situ at different length scales: colloids, polymeric chains, and nanobubbles. While conventional interests have been focused on the equilibrium structures and properties of soft materials, we explore their non-equilibrium dynamics under external driving forces or agitations, such …