Program Highlights for year 2014
Biomaterials implanted in the body evoke a “Foreign body response” which results in encapsulation of the material in a collagen-rich protein capsule. Fibroblast cells, which produce collagen, mediate this process that leads to biomaterial rejection / device failure in vivo. Surface nanotopography of BMGs can be used to engineer fibroblast-material interactions.
work reported in Science (August 20, 2013) a Harvard MRSEC team led by Suo and Whitesides developed a transparent “ionic skin,” a sensor skin
using ionic conductors. It senses signals with high stability and wide dynamic
Harvard MRSEC team led by Clarke, Mooney, Parker, Suo, and Vlassak has developed new hydrogels
Nanoscale three-dimensional (3D) structures are
building blocks for the fabrication of miniature switching devices and can be
used as functional units in nanorobotics. The functionality of the 3D
Fracture energy of plaque/glass interface
Gc ≈ 100 J/m2
104 × larger than Eadh of mfp5 (the most adhesive protein)!
We are building a scanning probe microscope to study spin and charge on the nanoscale. The magnetic sensing element is a nitrogen-vacancy center (NV) in diamond, which should afford single electron spin sensitivity with 10 nm spatial resolution.
Schematic of diamond-based scanning probe magnetometer
consortium coordinated by the Wisconsin MRSEC has grown
to 20 to 25 members. The Wisconsin
now partnered with
the University of Wisconsin business school to develop strategies
range of instrumentation within the University of Wisconsin MRSEC Shared
Instrumentation Facilities (UW-MRSEC SIF) can now be accessed by academic and
industry users around the nation via the Materials Research Facilities Network
Significant new addition
the past year is a
Cameca LEAP 3000 Si ATOM Probe.
arrays of high purity
(>99.9%) semiconducting single-walled carbon nanotubes (s-SWCNTs)
a large area has
been a significant challenge in materials synthesis. Towards