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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology



Thursday, 13 June 2019
(at 13:00 in room 115, Hallwachsstr. 3)
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When Physics of materials meets biology

Dr. Igor Zlotnikov


TU Dresden, Center for Molecular Bioengineering
   






Living organisms form complex mineralized composites that perform a variety of essential functions, ranging from structural and mechanical support, to optical, magnetic or sensing capabilities. This remarkable diversity in functionality is accomplished from a relatively narrow range of constituent inorganic materials that form hierarchically structured mineral-organic architectures. The control over biomineral shape, at all hierarchical levels, is a key aspect of the structure-to-function relationship in these materials. Although many studies have emphasized the critical role of biochemical regulation during biogenic mineral formation, the physical constraints that govern the growth process of naturally occurring biocomposite assemblies and determine the form of the constituent biomineral building blocks are not yet understood. Here, the fundamental question of how nature takes advantage of thermodynamic principles to generate complex morphologies will be addressed. Using analogies to well-known principles from classical materials science, the basis for understanding the physical processes and the forces that control the morphogenesis of biomineralized tissues in time and in space will be provided. The formation of two types of tissues will be highlighted: the calcium carbonate shells of molluscs that exhibit a large diversity of unconventional mineral morphologies, and amorphous glass spicules from marine sponges that are a paradigm of symmetry in biological systems.

Announcement (pdf)


Invited by G. Cuniberti

Within the nanoSeminar

last modified: 2021.03.17 Wed
author: webadmin

contact
Prof. Dr. Gianaurelio Cuniberti
secretariat:
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
office.nano@tu-dresden.de
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany