Geometrical assembly of ultrastable protein templates for nanomaterials

Dominic J. Glover, Lars Giger, Steve S. Kim, Rajesh R. Naik and Douglas S. Clark ()
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Dominic J. Glover: University of California
Lars Giger: University of California
Steve S. Kim: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base
Rajesh R. Naik: Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base
Douglas S. Clark: University of California

Nature Communications, 2016, vol. 7, issue 1, 1-9

Abstract: Abstract The fabrication of nanoscale devices requires architectural templates on which to position functional molecules in complex arrangements. Protein scaffolds are particularly promising templates for nanomaterials due to inherent molecular recognition and self-assembly capabilities combined with genetically encoded functionalities. However, difficulties in engineering protein quaternary structure into stable and well-ordered shapes have hampered progress. Here we report the development of an ultrastable biomolecular construction kit for the assembly of filamentous proteins into geometrically defined templates of controllable size and symmetry. The strategy combines redesign of protein–protein interaction specificity with the creation of tunable connector proteins that govern the assembly and projection angles of the filaments. The functionality of these nanoarchitectures is illustrated by incorporation of nanoparticles at specific locations and orientations to create hybrid materials such as conductive nanowires. These new structural components facilitate the manufacturing of nanomaterials with diverse shapes and functional properties over a wide range of processing conditions.

Date: 2016
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DOI: 10.1038/ncomms11771

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