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Cooperativity and frustration in protein-mediated parallel actin bundles.
It is shown that the interplay between binding geometry and the intrinsic flexibility of linkers mediates cooperative binding in the bundle, and the respective continuous (discontinuous) bundling mechanisms of fascin (espin) to difference in the stiffness of linker bonds themselves. Expand
Covalent Functionalization of Boron Nitride Nanotubes via Reduction Chemistry.
It is revealed that their chemical reactivity can be significantly enhanced via reducing the nanotubes (i.e., negatively charging), and covalent functionalization of BNNTs via reduction chemistry could be a highly promising and viable strategy. Expand
Theory of two-dimensional self-assembly of Janus colloids: crystallization and orientational ordering.
We study the rich crystalline phase behavior of amphiphilic spherical Janus colloids using a new formulation of self-consistent phonon theory that includes coupled translational and rotationalExpand
Mesophases of soft-sphere aggregates
Soft spheres interacting via a hard core and a range of attractive and repulsive ‘soft-shoulder’ potentials self-assemble into clusters forming a variety of mesophases. We combine a mean-field theoryExpand
Role of Hydrogen in High-Yield Growth of Boron Nitride Nanotubes at Atmospheric Pressure by Induction Thermal Plasma.
It is revealed that both the thermofluidic fields and chemical pathways are significantly altered by hydrogen in favor of rapid growth of BNNTs and H radicals also stabilize B or N radicals from dissociation of the feedstock as BH and NH radicals while suppressing the formation of N2 or N2+ species. Expand
Topological defects in spherical nematics.
The global defect geometry is controllable by tuning the relative splay to bend modulus and a one-parameter family of degenerate ground states in the extreme splay-dominated limit K_{3}/K_{1}-->infinity is found. Expand
Carbon Nanotubes and Related Nanomaterials: Critical Advances and Challenges for Synthesis toward Mainstream Commercial Applications.
While the primary focus of this review is on the science framework of SWCNT growth, connections to mechanisms underlying the synthesis of other 1D and 2D materials such as boron nitride nanotubes and graphene are drawn. Expand
Morphology of nematic and smectic vesicles
Recent experiments on vesicles formed from block copolymers with liquid-crystalline side chains reveal a rich variety of vesicle morphologies. The additional internal order (“structure”) developed byExpand
Interstitial fractionalization and spherical crystallography.
A powerful, freely-available computer program is used to explore interstitial fractionalization in some detail, for a variety of power-law pair potentials, and investigates the dependence on initial conditions and the final state energies, and compares the position dependence of interstitial energies with the predictions of continuum elastic theory on the sphere. Expand
Structural reorganization of parallel actin bundles by crosslinking proteins: incommensurate states of twist.
  • Homin Shin, G. Grason
  • Materials Science, Physics
  • Physical review. E, Statistical, nonlinear, and…
  • 15 August 2010
A coarse-grained model of parallel actin bundles crosslinked by compact globular bundling proteins reveals that subtle differences in crosslinking agents themselves modify not only the detailed structure of parallelActin bundles, but also the thermodynamic pathway by which they form. Expand