Browsing FAS Scholarly Articles by Keyword "colloids"
Now showing items 1-7 of 7
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Imaging Multiple Colloidal Particles by Fitting Electromagnetic Scattering Solutions to Digital Holograms
(Elsevier BV, 2012)Digital holographic microscopy is a fast three-dimensional (3D) imaging tool with many applications in soft matter physics. Recent studies have shown that electromagnetic scattering solutions can be fit to digital holograms ... -
Physical Ageing of the Contact Line on Colloidal Particles at Liquid Interfaces
(Nature Publishing Group, 2012)Young's law predicts that a colloidal sphere in equilibrium with a liquid interface will straddle the two fluids, its height above the interface defined by an equilibrium contact angle. This equilibrium analysis has been ... -
Relaxation Dynamics of Colloidal Particles at Liquid Interfaces
(AIP, 2015)We study the dynamics of colloidal particles as they approach and breach a water-oil interface. We use a fast 3D imaging technique, digital holographic microscopy, to track particles with 2 nm precision and sub-millisecond ... -
Review of Molecular Forces and Self Assembly: In Colloid, Nano Sciences and Biology
(American Institute of Physics, 2011) -
Self-Assembly of Polyhedral Hybrid Colloidal Particles
(Materials Research Society, 2008)We have developed a new method to produce hybrid particles with polyhedral shapes in very high yield (liter quantities at up to 70% purity) using a combination of emulsion polymerization and inorganic surface chemistry. ... -
Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films
(American Chemical Society (ACS), 2014)We present a reproducible, one-pot colloidal co-assembly approach that results in large-scale, highly-ordered porous silica films with embedded, uniformly-distributed, accessible gold nanoparticles. The unique coloration ... -
Using the discrete dipole approximation and holographic microscopy to measure rotational dynamics of non-spherical colloidal particles
(Elsevier BV, 2014)We present a new, high-speed technique to track the three-dimensional translation and rotation of non-spherical colloidal particles. We capture digital holograms of micrometer-scale silica rods and sub-micrometer-scale ...