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DTSTART;TZID=America/Chicago:20241011T153000
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DTSTAMP:20260611T005906
CREATED:20241003T125926Z
LAST-MODIFIED:20241003T125926Z
UID:10435338-1728660600-1728666000@uwm.edu
SUMMARY:Physics Colloquium - Hongbin Li
DESCRIPTION:Hongbin Li\, Professor\, Department of Chemistry\, The University of British Columbia \nRational Engineering of Protein-based Biomaterials: from single molecule traits to functional material properties \nIn their biological settings\, elastomeric proteins function as molecular springs\, thereby establishing elastic connections\, plus providing mechanical strength and elasticity. With an ability to change their shape (evolving from simple\, random coil-like structures to a more sophisticated beads-on-a string formation)\, they fulfill their biological function. These complex protein polymers exhibit distinct mechanical properties. \nThe development of single molecule force spectroscopy techniques has made it possible to directly probe these properties\, at the single molecule level\, allowing us to understand their molecular design principles. This knowledge has enabled us to engineer novel elastomeric proteins to achieve tailored and well-defined nanomechanical properties. \nIn this talk\, specific examples will be given on engineering protein hydrogels to mimic the passive elastic properties of muscle\, as well as highly stiff and highly tough protein biomaterials to mimic the mechanical properties of cartilage. These studies will pave the way to utilizing proteins as building blocks to engineer new generations of protein-based biomaterials for diverse applications in biomedical engineering as well as material sciences. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-hongbin-li/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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DTSTART;TZID=America/Chicago:20241018T153000
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CREATED:20241007T125538Z
LAST-MODIFIED:20241007T125538Z
UID:10435339-1729265400-1729270800@uwm.edu
SUMMARY:Physics Colloquium - Catalin Picu
DESCRIPTION:Catalin Picu\, Dept. of Mechanical\, Aerospace & Nuclear Engineering\, Rensselaer Polytechnic Institute \nSoft Network Materials: Structure-Properties Relations \nMany materials have a stochastic network of filaments as their main structural component and are referred to collectively as ‘network materials.’ This class includes all biological connective tissue\, the extracellular matrix\, the intra-cellular cytoskeleton\, paper and cellulose-based products\, nonwovens\, as well as various molecular networks such as rubber\, gels and thermosets. \nThis talk reviews the relation between the structure of athermal networks and the material-scale mechanical properties\, focusing on identifying commonalities between these very diverse material systems. Properties of interest include the non-linear elastic response\, the viscoelastic response\, strength and toughness. The effect of inter-fiber adhesion on network mechanics will be also discussed. The talk provides a comprehensive overview of the mechanics of this broad class of materials. \nThe event flyer is available here.
URL:https://uwm.edu/physics/event/physics-colloquium-catalin-picu/
LOCATION:Chemistry 108\, 2050 E Kenwood Blvd\, Milwaukee\, WI\, 53201\, United States
CATEGORIES:Physics Colloquia
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