The Center for Nanoscale Materials holds a regular biweekly colloquium on alternate Wednesday afternoons at 4:00 p.m. in Bldg. 440, Room A105/106. The goal of the series is to provide a forum for topical multidisciplinary talks in areas of interest to the CNM and also to offer a mechanism for fostering interactions with potential facility users. Refreshments will be served at 3:45.
Sept. 10, 2014
"Inorganic Control of Biological Self-Assembly," Akif Tezcan, University of California, San Diego, hosted by Chris Fry
One-, two- and three-dimensional protein arrays play central roles in diverse biological processes, are widely used in nano- and bio-technological applications, and they form the basis of protein crystallography. The design of an arbitrary protein that can self-assemble into such arrays is very desirable, but it is complicated by the chemical heterogeneity of protein surfaces. We have shown that through enginereed metal coordination, monomeric proteins can be assembled into helical one-dimensional nanotubes and two- and three-dimensional arrays with crystalline order. These assemblies show striking similarities to highly evolved architectures such as microtubules and bacterial S-layers in terms of their shapes, dimensions and structural uniformity, as well as their responsiveness to chemical triggers. The assemblies can be uniformly functionalized on the level of an individual building block, providing a route for creating homogeneous nanoscale materials.
Sept. 24, 2014
Reuven Gordon, University of Victoria, hosted by Jeff Guest
Nov. 5, 2014
Wenbin Lin, University of Chicago, hosted by Yugang Sun