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.
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