Highlights
Dec 1, 2010
Massachusetts Institute of Technology
Multimaterial acoustic fibers
S. Egusa, Z. Wang, N. Chocat, Z.M. Ruff, A.M. Stolyarov, D. Shemuly, F. Sorin, P.T. Rakich, J.D. Joannopoulos, and Y. Fink (MIT MRSEC, IRG-III)
Following up on their recent creation of light-sensitive fibers,
Professors Yoel Fink and Joannopoulos and their research teams have
developed fibers that can detect ("hear") and produce sound ("sing").
Sep 13, 2010
Johns Hopkins University
Lateral Organic Devices
B. M. Dhar, G. S. Kini, G. Xia, B. J. Jung, N. Markovic, and H. E. Katz
Background: Most
organic devices, from organic light emitting diodes to organic
spintronic devices vertical devices, where the essential interfaces are
buried and thus not subject to investigation.
Aug 25, 2010
Brandeis University
Theory of Chiral Smectic A Twisted Ribbons
C. N. Kaplan1, H. Tu2, R. A. Pelcovits2 and R. B. Meyer1
1 The
Martin Fisher School of Physics, Brandeis University
2 Department of Physics, Brown University
Aug 25, 2010
Brandeis University
The MRSEC Microfluidics
Seth Fraden, Dongshin Kim
During the academic year, Fall09 - Spring10, Dr. Kim,
the facility director ,designed, built and tested devices for a number of MRSEC
and outside users.
Aug 24, 2010
Brandeis University
Self-Limited Self-Assembly of Chiral Subunits
A simple
computational model demonstrates the assembly of self-limited filamentous
bundles. The images are taken from dynamic Monte Carlo simulations in which "chiral"
subunits ( with a preference to form twisted arrays of one "handedness")
spontaneously assemble under different interaction strengths and degrees of chirality.
Aug 24, 2010
Brandeis University
Active Emulsion droplet arrays
Irv Epstein, Seth Fraden, Bing Xu
Stabilized
emulsions containing the oscillating Belousov - Zhabotinsky chemical reaction (BZ) show interesting dynamics. Each drop acts as an independent chemical clock.
However, they chemically communicate and exhibit collective behavior. In (a)
six BZ drops are contained in a
capillary tube. The white bars
are light, which set the oscillators in the reduced state. Drops 1 & 6 are
always exposed to light, setting the boundary conditions. Drops 3 & 4 are
Aug 23, 2010
Massachusetts Institute of Technology
How the weak becomes strong: spider silk reveals a paradox of super-strength
Markus Buehler (MIT)
Since its development in China thousands of years ago, silk from
silkworms, spiders and other insects has been used for high-end, luxury
fabrics as well as for parachutes and medical sutures. Now, MRSEC
supported researchers are untangling some of its most closely guarded
secrets, and explaining why silk is so strong, a question that has
remained unresolved. Buehler and co-workers of the MIT MRSEC IRG-II have
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