Bioinspired mechanical mineralization of organogels

Jorge Ayarza, Jun Wang, Hojin Kim, Pin-Ruei Huang, Britteny Cassaidy, Gangbin Yan, Chong Liu, Heinrich M. Jaeger, Stuart J. Rowan and Aaron P. Esser-Kahn ()
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Jorge Ayarza: University of Chicago
Jun Wang: University of Chicago
Hojin Kim: University of Chicago
Pin-Ruei Huang: University of Chicago
Britteny Cassaidy: University of Chicago
Gangbin Yan: University of Chicago
Chong Liu: University of Chicago
Heinrich M. Jaeger: University of Chicago
Stuart J. Rowan: University of Chicago
Aaron P. Esser-Kahn: University of Chicago

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract Mineralization is a long-lasting method commonly used by biological materials to selectively strengthen in response to site specific mechanical stress. Achieving a similar form of toughening in synthetic polymer composites remains challenging. In previous work, we developed methods to promote chemical reactions via the piezoelectrochemical effect with mechanical responses of inorganic, ZnO nanoparticles. Herein, we report a distinct example of a mechanically-mediated reaction in which the spherical ZnO nanoparticles react themselves leading to the formation of microrods composed of a Zn/S mineral inside an organogel. The microrods can be used to selectively create mineral deposits within the material resulting in the strengthening of the overall resulting composite.

Date: 2023
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DOI: 10.1038/s41467-023-43733-x

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