Search

Metal Oxide nanocrystals that incorporate dopants (impurities) can display intense absorption bands known as localized surface plasmon resonances (LSPRs) that can transduce light into heat. Using a series of time-resolved measurements with femtosecond resolution together with a theoretical heat transfer model, we have quantified timescales over which tin-doped indium oxide (ITO) nanocrystals heat their environment following light absorption.

At the University of Chicago MRSEC, we demonstrate that controlling the molecular crystal hosting the active qubit is a powerful means for enhancing coherence.

The planar dynamics of a semi-flexible filament anchored at one end and comprised of connected, self-propelled, spheres were predicted using Brownian dynamics simulations and continuum elastic theory theory. For certain parameter ranges the filament undergoes periodic motion. With a clamped anchor, the filament undergoes flagella-like beating (top right), while a pivoting end leads to a steadily rotating coiled conformation (bottom right).

Scientists design experiments to increase excitement K-12 science education

NYU-MRSEC investigators have worked alongside BioBus scientists to develop new K-12 materials science-related curricula since 2009. This collaboration brought exciting and educational engineering projects to over 1,000 NYC students in 2019-2020.

•The ability to design and assemble three-dimensional structures from colloidal particles, such as open structures for photonic band gap applications, is limited by the absence of specific directional bonds.

In a paper titled Persistence of Small Polarons in Doped Bismuthate Superconductors, researchers study Ba1−xKxBiO3, which becomes a high-Tc superconductor when doped into a charge-density-wave insulator. They show that short-range lattice distortions and strong electron-phonon coupling persist into the metallic phase. Using resonant inelastic x-ray and neutron scattering plus modeling, the team suggests BKBO’s metallic state is an unusual bipolaronic liquid with persistent polarons.

In nature, actin bundling is a key capability that enables cells to apply substantial forces to overcome obstacles. Similarly, in the design of actin-based materials, the ability to bundle semi-rigid filaments into bundles of higher rigidity is a key step toward building more complex architectures. For this reason, developing a toolbox for controlling bundling is an important goal of our IRG. The approaches we have developed for controlling the bundling of actin filaments on a microscopic level allow us to construct actin-based materials with tunable mechanical properties.

  •“Lewis dots” smartphone app showcased at the New York Technology Meetup, a special University-themed roundup in November 2011