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Highlights

Highlights

Image sequence of actin droplets (2.6 M, red) severing from a motor cluster (12.3 nM myosin, active, white).
Image sequence of actin droplets (2.6 M, red) severing from a motor cluster (12.3 nM myosin, active, white).
May 10, 2019
University of Chicago

Self-organizing motors divide active liquid droplets

Kimberly L. Weirich (James Franck Institute, University of Chicago) Kinjal Dasbiswas (James Franck Institute, University of Chicago) Thomas A. Witten (James Franck Institute & Dept. of Physics, University of Chicago) Suriyanarayanan Vaikuntanathan (James Franck Institute & Dept. of Chemistry, University of Chicago) Margaret L. Gardel (James Franck Institute & Dept. of Physics, University of Chicago)
At the University of Chicago MRSEC, we have constructed active liquid droplets comprised of the biopolymer actin, crosslinker and molecular motors myosin. The motors spontaneously divide the droplets in half.
Building strongly interacting photonic materials
Building strongly interacting photonic materials
May 10, 2019
University of Chicago

Building strongly interacting photonic materials

Ruichao Ma (University of Chicago) Brendan Saxberg (University of Chicago) Clai Owens (University of Chicago) Nelson Leung (University of Chicago) Yao Lu (University of Chicago) Jonathan Simon (University of Chicago) David I. Schuster (University of Chicago)
A collaboration of the Simon and Schuster groups at the University of Chicago MRSEC  have realized a photonic strongly interacting Mott insulator using a 1D lattice of superconducting qubits.
from J. S. Jeong, H. Song, J. T. Held, K. A. Mkhoyan, Phys. Rev. Lett. 122 (2019).
from J. S. Jeong, H. Song, J. T. Held, K. A. Mkhoyan, Phys. Rev. Lett. 122 (2019).
May 8, 2019
University of Minnesota - Twin Cities

Subatomic Channeling and Spiraling Electron Beams in Crystals

K. Andre Mkhoyan, University of Minnesota
Using analytical aberration-corrected scanning transmission electron microscopy (STEM), we studied the behavior of the electron probe propagating in SrTiO3 at sub-atomic length scales.
(Top) Cationic micelles can be formed via self-assembly from amphiphilic block polymers and complexed with pDNA to form micelleplexes. (Bottom) The number of micelles per micelleplex was estimated using the Mw of the micelleplexes measured by SLS with the assumptions that all micelleplexes are identical and that there are no excess free micelles.
(Top) Cationic micelles can be formed via self-assembly from amphiphilic block polymers and complexed with pDNA to form micelleplexes. (Bottom) The number of micelles per micelleplex was estimated using the Mw of the micelleplexes measured by SLS with the assumptions that all micelleplexes are identical and that there are no excess free micelles.
May 8, 2019
University of Minnesota - Twin Cities

ABC Micelleplexes: Precise Compaction and High Colloidal Stability

Timothy Lodge and Theresa Reineke, University of Minnesota
In this work, the complexation of ABC micelles with a model semiflexible polyion, DNA, is systematically investigated to correlate the structure of the micelle with the properties of the resulting “micelleplexes”.
NSF-MRSEC Booth at the International Materials Research Congress
NSF-MRSEC Booth at the International Materials Research Congress
May 7, 2019
Northwestern University

NSF-MRSEC Booth at the International Materials Research Congress

The NSF-MRSEC booth was featured at the XXVII International Materials Research Congress (IMRC) in Cancun, Mexico on August 19-24, 2018 to increase awareness, promote international collaboration, and broaden participation from traditionally underrepresented groups in the National Science Foundation Materials Research Science and Engineering Center (NSF-MRSEC) program.
Joint Undertaking for an African Materials Institute (JUAMI)
Joint Undertaking for an African Materials Institute (JUAMI)
May 7, 2019
Northwestern University

Joint Undertaking for an African Materials Institute (JUAMI)

The NU-MRSEC has supported Joint Undertaking for an African Materials Institute (JUAMI), which is the largely NSF-funded program aimed at fostering connections between young researchers in the US and those in Eastern Africa.
Research Experience for Undergraduates Plus (REU+)
Research Experience for Undergraduates Plus (REU+)
May 7, 2019
Northwestern University

Research Experience for Undergraduates Plus (REU+)

The new NU-MRSEC REU+ Program enables select REU participants from small colleges to follow their summer experience with an academic quarter at Northwestern University as domestic exchange students, thereby allowing them to experience the rigor of an R1 university in a nurturing environment. REU+ students take classes and also continue their research for an additional ten weeks.
The updated Materials Science Exhibit is currently housed at the Harold Washington Library in downtown Chicago, which is the primary resource for the socioeconomically diverse Chicago Public Schools.
The updated Materials Science Exhibit is currently housed at the Harold Washington Library in downtown Chicago, which is the primary resource for the socioeconomically diverse Chicago Public Schools.
May 7, 2019
Northwestern University

Materials Science Exhibit at the Chicago Public Library

In collaboration with the Chicago Museum of Science and Industry and the Chicago Public Library, the NU-MRSEC launched the Materials Science Exhibit at the Harold Washington Library in downtown Chicago.
Designing Biomaterials Using High-Throughput Directed Evolution
Designing Biomaterials Using High-Throughput Directed Evolution
May 7, 2019
Northwestern University

Designing Biomaterials Using High-Throughput Directed Evolution

Traditional design approaches are insufficient for exploring the vast phase space available to protein-based biomaterials. This NU-MRSEC seed-funded project is developing a platform for biomaterials design using directed evolution, which combines genetic mutation and protein synthesis with high-throughput materials characterization.
Processing 2D Porous Polymers into Membranes via Exfoliation
Processing 2D Porous Polymers into Membranes via Exfoliation
May 7, 2019
Northwestern University

Processing 2D Porous Polymers into Membranes via Exfoliation

The NU-MRSEC Super-Seed team has developed a method to process imine-linked 2D COF powders into thin films via reversible exfoliation. The COF powder is treated with strong acids, which causes each layer to become positively charged. This charged form is exfoliated in solvents with gentle sonication, which provides a suspension of nanosheets.

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