Formation of Biological Architectures described by Synchrotron-Based Characterization and Imaging Techniques
|Start date||30-04-2015 14:00|
|Finish date||30-04-2015 15:00|
|Location||CTRM Control Room|
|Speaker's name||Igor Zlotnikov|
|Speaker's institute||Max Planck Institute of Colloids and Interfaces, Germany|
|Contact name||Claudine Roméro|
|Host name||Alexander Rack|
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Living organisms form complex mineralized composites that perform a variety of essential functions, ranging from structural support and mechanical strength, to optical, magnetic or sensing capabilities. This remarkable diversity in functionality is accomplished from a relatively narrow range of constituent inorganic materials via hierarchical mineral-organic functional architectures, and therefore these structures routinely serve as a source of inspiration for scientists and engineers. The control over biomineral shape, at all hierarchical levels, is a key aspect of structure-to-function relationship in biological materials. Although many studies have emphasized the critical role of biological regulation during biomineral formation, the physical constraints governing the growth process of naturally occurring architectures and determining the form of biomineral building blocks are not understood.
In this talk, I will address the fundamental question of how nature takes advantage of thermodynamic principles to generate complex morphologies. I will highlight two structures where, using synchrotron based characterization and imaging techniques, we showed that microstructure formation during biomineralization is analytically defined and can be quantitatively described both in time and in space – namely, the shell of a marine mollusc (Pinna nobilis) and the anchor spicule of a glass sponge (Monorhaphis chuni).
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