Highlights
Sep 22, 2015
Prediction and Design of Protein Polymer Phase Behavior at the Sequence Level
Ashutosh Chilkoti, Duke UniversityFelipe Garcia Quiroz, Duke University
In their recent publication in Nature Materials, Research Triangle MRSEC professor Ashutosh Chilkoti and graduate fellow Felipe Garcia Quiroz created test motifs to identify the amino acid sequences that determine phase behavior in proteins. They demonstrate that proteins can be designed to exhibit tunable phase transitions, allowing significant control over assembly and disassembly processes.
Aug 24, 2015
Nanocapillarity-mediated magnetic assembly of nanoparticles into ultraflexible filaments and reconfigurable networks
Bhuvnesh Bharti1, Anne-Laure Fameau2 Michael Rubinstein3 and Orlin D. Velev1 1Deptartment of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh; 2National Institute of French Agricultural Research, Nantes; 3Department of Chemistry, University of North Carolina, Chapel Hill
In a paper published in Nature Materials, researchers from North Carolina State University and the University of North Carolina-Chapel Hill show that magnetic nanoparticles encased in oily liquid shells can bind together in water, much like sand particles mixed with the right amount of water can form sandcastles.
Aug 20, 2015
University of Minnesota - Twin Cities
Approaching a Two-Dimensional (2D) Metallic State on the Surface of the Organic Semiconductor Rubrene
Dan Frisbie, Chris Leighton University of Minnesota
Whether metallic behavior can exist in 2D materials is a question that has troubled condensed matter physics for decades. Although originally thought impossible, evidence for such in ultra-clean high-purity doped inorganic semiconductor heterostructures based on materials such as Si and GaAs eventually changed the prevailing view.
Aug 20, 2015
University of Minnesota - Twin Cities
Research Experiences for Teachers Student Expo
On May 20, 2015, over 250 middle and high school students participated in the inaugural MRSEC Research Experiences for Teachers (RET) Student Expo.
Aug 14, 2015
Ohio State University
Controlling Heat
Hyungyu Jin, Oscar D. Restrepo, Nikolas Antolin, Stephen R. Boona, Wolfgang Windl, Roberto C. Myers and Joseph P. Heremans, The Ohio State University
Researchers at OSU's Center for Emergent Materials have discovered that in semiconductors, specifically Indium Antimonide (InSb), heat can be controlled magnetically, given a sufficiently large magnetic field.
Aug 14, 2015
Ohio State University
Wafer scale integration of 2D Materials
Roland Kawakami, David McComb, Ezekiel Johnston-Halperin, The Ohio State University
Researchers at OSU's Center for Emergent Materials have established a novel route for growing precise layers of optoelectronic 2D materials directly onto wafers commonly used by the semiconductor industry. This route combines the epitaxial growth of a crystalling precursor lattice (CaGe2) with its conversion into a layered 2D material (GeH) phase.
Aug 13, 2015
University of Nebraska - Lincoln
Nanoscience Vlog – a New Way to Communicate P-SPINS Research
Axel Enders, Krista Adams, and Jocelyn Bosley (Nebraska MRSEC)
During the summer of 2015, Research Experiences for Teachers (RET) participant
Courtney Matulka of Millard Public Schools together with Seed Project leader
Krista Adams and Professor-Student Pairs participant Sharmin Sikich of Doane
College developed a video blog, or “vlog,” to highlight the cutting-edge
research happening in the nanosciences at the University of Nebraska-Lincoln
(UNL). Working with Nebraska MRSEC Education/Outreach Director Axel Enders,
Matulka interviewed and filmed Nebraska MRSEC faculty and Professor-Student
Aug 13, 2015
University of Nebraska - Lincoln
Nebraska MRSEC Partnership with Universities of Strasbourg and Bordeaux
Axel Enders, Sumit Beniwal, Xin Zhang, and Peter Dowben (Nebraska MRSEC); Bernard Doudin, Lucie Routaboul, and Pierre Braunstein (University of Strasbourg); Guillaume Chastanet, Nathalie Daro, Patrick Rosa, and Jean-François Letard (University of Bordeaux)
Molecules with switchable magnetic moment could become of considerable importance for the emerging field of organic spintronics, where the control of spin degrees of freedom may be performed electrically on the molecular scale. Spin crossover complexes based on magnetic iron (Fe) ions are interesting in this regard because they exhibit a reversible transition between a high-spin and low-spin magnetic state, which can be induced by external stimuli such as temperature, pressure, electric field, and by light.
Aug 7, 2015
Massachusetts Institute of Technology
Bio-Inspired Gels Show Promise as Self-healing Materials with Properties Controlled by Metal Ions
Jeremiah Johnson and Niels Holten-Andersen
Nature has evolved numerous mechanisms for the self-healing of damaged tissues and structures. MIT MRSEC researchers have shown first successes in establishing a new class of smart polymer materials with controllable network junctions by combining Diels-Alder reactions with bio-inspired metal coordinate crosslinking to generate multi-functional polymers capable of
Aug 7, 2015
Massachusetts Institute of Technology
Creating crystalline silicon core fibers from aluminum and glass preforms
Yoel Fink and John Joannopoulos
Crystalline silicon is a critically important electronic material in all consumer electronic products. The ability to create fibers from this material would open up exciting vistas for a new generation of fiber-based electronic and optical devices. Traditional fiber-optic drawing involves a thermally mediated geometric scaling where both the fiber materials and their relative positions are identical to those found in the fiber preform. To date, all thermally drawn fibers are limited to the preform composition and geometry.
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