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Highlights

Mar 15, 2013
UNL Materials Research Science and Engineering Center (2014)

Mechanical Writing of Polarization

Haidong Lu and Alexei Gruverman (Nebraska MRSEC)

Ferroelectrics comprise an important group of materials, which are characterized by a permanent electric polarization. This polarization can be switched which provides a possibility of using ferroelectrics in data storage and memory devices. Typically, polarization is switched by the application of the external electric field. Nebraska MRSEC researchers have shown that polarization can be switched by purely mechanical means: simply by pushing the tip of a scanning probe microscope against the ferroelectric
Mar 15, 2013
UNL Materials Research Science and Engineering Center (2014)

Nebraska MRSEC Professor/Student Pairs Program

Shireen Adenwalla (Nebraska MRSEC)

The Nebraska MRSEC Professor/Student Pairs Program brings in a professor and a student from non-research intensive four-year institutions to conduct research with Nebraska MRSEC scientists. The goal is to offer a research experience which benefits both the participants and the MRSEC projects.
Mar 11, 2013
Cornell Center for Materials Research (2017)

Ordering Nanoscale Dots with Molecular Honeycombs

Designable Porous Organic Networks Represent A New Strategy for Nanoparticle Assembly
Mar 11, 2013
Cornell Center for Materials Research (2017)

Launching Student Interest in Science

Scientists design experiments to increase excitement K-12 science education
Feb 28, 2013
UPENN Materials Research Science and Engineering Centers

A Lipid-Clustering Mechanism to Trigger Actin Assembly in Cell Extracts

Paul A. Janmey and Dennis Discher, University of Pennsylvania

Filaments in the cytoplasm that constitute a three dimensional cytoskeleton are formed by polymerization of the protein actin, which is initiated at distinct sites near the cell membrane.   Negatively charged lipids in
Feb 28, 2013
UPENN Materials Research Science and Engineering Centers

Particle Shape Affects Membrane Bending & Drop Drying

T. C. Lubensky and A. G. Yodh, University of Pennsylvania

Novel, cylindrical, ribbon-like membranes are formed when colloidal particles adsorb at the air-water interfaces of droplets confined between two glass plates (Fig. a). We have found that the ease with which such ribbon membranes bend depends on particle shape. Ellipsoidal particles on the interface locally deform the interface and thereby introduce strong capillary forces into the membrane that couple the particles into networks. The resultant membrane scaffolding can resist bending by as much as
Feb 28, 2013
UPENN Materials Research Science and Engineering Centers

Tunable Tensile Ductility in Metallic Glasses

D.J. Magagnosc(1), R. Erhbar(1), G. Kumar(2), M.R. He(1), J. Schroers(3), D.S. Gianola(1) 1, University of Pennsylvania; 2, Texas Tech. University; 3, Yale University

  Metallic glasses (MGs) are an exciting class of materials due to a suite of attractive properties including high strength, large stretchability, high wear and corrosion resistance, and excellent magnetic properties. However, adoption of MG in many applications has been hindered by the fact that they are brittle: they can break apart very suddenly, especially when put under tension. Ductility – the ability to softly stretch without breaking – would be a better property to have.