Michael G Nikolaides

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We describe experimental investigations of the structure of two-dimensional spherical crystals. The crystals, formed by beads self-assembled on water droplets in oil, serve as model systems for exploring very general theories about the minimum-energy configurations of particles with arbitrary repulsive interactions on curved surfaces. Above a critical(More)
We present an approach to fabricate solid capsules with precise control of size, permeability, mechanical strength, and compatibility. The capsules are fabricated by the self-assembly of colloidal particles onto the interface of emulsion droplets. After the particles are locked together to form elastic shells, the emulsion droplets are transferred to a(More)
Nanometre- and micrometre-sized charged particles at aqueous interfaces are typically stabilized by a repulsive Coulomb interaction. If one of the phases forming the interface is a nonpolar substance (such as air or oil) that cannot sustain a charge, the particles will exhibit long-ranged dipolar repulsion; if the interface area is confined, mutual(More)
We construct shells with tunable morphology and mechanical response with colloidal particles that self-assemble at the interface of emulsion droplets. Particles self-assemble to minimize the total interfacial energy, spontaneously forming a particle layer that encapsulates the droplets. We stabilize these layers to form solid shells at the droplet interface(More)
N ikolaides et al. 1 propose that the puzzling attraction that occurs between micrometre-sized particles adsorbed at an aqueous interface is caused by a distortion of the liquid interface that is due to the dipolar electric field of the particles and which induces a capillary attraction. Here we argue that this effect cannot account for the observed(More)
  • J T Uchiyama, K Yodoi, K Sagawa, H Takatsuki, Uchino, N Yamamoto +44 others
  • 2003
appeared to be necessary to initiate the observed polarization of the cytoskeleton: HTLV-I infection of the cell and contact with another cell. It is not yet clear which molecules mediate these signals. HTLV-I Env protein is again a candidate for this function, because it is the only HTLV-I protein that is expressed intact on the outside of the infected(More)
Nanometer and micrometer sized particles adsorbed at aqueous interfaces are ubiquitous in technological applications, as well as in biological constructs. The particles are typically stabilized by a repulsive Coulomb interaction; if one side of the interface is non polar (air or oil), and cannot sustain a charge, then the repulsive interaction is dipolar in(More)
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