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Program Highlights for year 2012

Highly Stretchable and Tough Hydrogels

Research

Hydrogels are used as scaffolds for tissue engineering, vehicles for drug delivery, actuators for optics and fluidics, and model extracellular matrices for biological studies. The scope of hydrogel applications, however, is often severely limited by their mechanical behaviors. Most hydrogels are brittle, sensitive to

(2012)

Precise Stitching, Not Patch Size, Determines the Quality of Atomic Quilts

Research
Intergrain stitching determines electrical conductance across graphene grain boundaries

The outstanding electronic and mechanical properties of single-atom-thick layers of carbon, so-called “graphene” films, make

(2012)

Controlling and Imaging Electron Motions in Atomic-Scale Sandwiches

Research
A new instrument allows the first imaging of the movement of electrons in artificial materials

(2012)

Spin Organic Light Emitting Diodes (OLED)

Objective: Develop and characterize OLEDs based on spin-aligned carrier injection of which electro-luminescence (EL) is controlled by magnetic field.

Approach: Use ferromagnetic cathode and anode that work as bipolar spin- valve injecting both electrons and holes into a deuterated π-conjugated polymer.

(2012)

2012 Research Experience for Undergraduates Summer Program

Utah MRSEC sponsored 10 undergrads to work with faculty and graduate student mentors in their labs for a 9-week research program. Research opportunities for Utah MRSEC REU students are of an interdisciplinary focus on topics such as plasmonic metamaterials, and spin effects in organic LEDs & solar cells.

(2012)

Periciliary Brush Keeps Lungs Healthy

Research

Mucus clearance is the primary defense mechanism that protects airways from inhaled infectious and toxic agents. In the current Gel-on-Liquid mucus clearance model mucus gel is propelled on top of a “watery” periciliary layer surrounding the cilia. However, this model fails to explain the formation of distinct mucus layer in health or

(2012)

Summer School on “Polymers in Soft and Biological Matter"

Education

Founded by physical chemists like Flory and brought into the mainstream of theoretical physics by visionaries like de Gennes, over the last eighty years polymer physics has grown into a mature, rich, and exciting discipline.

(2012)

Binary Colloidal Structures Assembled through Ising Interactions

Research

Assembling microscopic particles into macroscopic structures can open new pathways for producing complex materials that cannot be produced by lithographic methods. Although several methods for assembling colloidal particles exist, including controlled drying, ionic interactions, and dipolar interactions, a general pathway for

(2012)

Science Show from Puerto Rico Wows Madison Audiences

Education

In July, 2012, the UW-MRSEC hosted graduate students from the University of Puerto Rico Mayaguez. While in Madison, Wisconsin the students performed their Science on Wheels (Ciencias en Ruedas) show at the Wisconsin Institutes for Discovery on the UW-Madison campus. The show teaches students about chemistry and physics

(2012)

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