Nonclassical crystallization in vivo et in vitro (II): Nanogranular features in biomimetic minerals disclose a general colloid-mediated crystal growth mechanism

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Rodriguez-Navarro C, Ruiz-Agudo E, Harris J, Wolf S
Zeitschrift: Journal of Structural Biology
Verlag: Academic Press Inc.
Jahr der Veröffentlichung: 2016
Band: 196
Heftnummer: 2
Seitenbereich: 260-287
ISSN: 1095-8657


Abstract


Recent research has shown that biominerals and their biomimetics (i) typically form via an amorphous precursor phase, and (ii) commonly display a nanogranular texture. Apparently, these two key features are closely related, underlining the fact that the formation of biominerals and their biomimetics does not necessarily follow classical crystallization routes, and leaves a characteristic nanotextural imprint which may help to disclose their origins and formation mechanisms. Here we present a general overview of the current theories and models of nonclassical crystallization and their applicability for the advance of our current understanding of biomineralization and biomimetic mineralization. We pay particular attention to the link between nonclassical crystallization routes and the resulting nanogranular textures of biomimetic CaCO mineral structures. After a general introductory section, we present an overview of classical nucleation and crystal growth theories and their limitations. Then, we introduce the Ostwald's step rule as a general framework to explain nonclassical crystallization. Subsequently, we describe nonclassical crystallization routes involving stable prenucleation clusters, dense liquid and solid amorphous precursor phases, as well as current nonclassical crystal growth models. The latter include oriented attachment, mesocrystallization and the new model based on the colloidal growth of crystals via attachment of amorphous nanoparticles. Biomimetic examples of nanostructured CaCO minerals formed via these nonclassical routes are presented which help us to show that colloid-mediated crystal growth can be regarded as a wide-spread growth mechanism. Implications of these observations for the advance in the current understanding on the formation of biomimetic materials and biominerals are finally outlined.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Harris, Joseph Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Wolf, Stephan Prof. Dr.
Juniorprofessur für Werkstoffwissenschaften (Biomimetische Materialien und Prozesse)


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum für Funktionale Partikelsysteme (FPS)


Einrichtungen weiterer Autorinnen und Autoren

Universidad de Granada


Forschungsbereiche

E Lightweight Materials
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Rodriguez-Navarro, C., Ruiz-Agudo, E., Harris, J., & Wolf, S. (2016). Nonclassical crystallization in vivo et in vitro (II): Nanogranular features in biomimetic minerals disclose a general colloid-mediated crystal growth mechanism. Journal of Structural Biology, 196(2), 260-287. https://dx.doi.org/10.1016/j.jsb.2016.09.005

MLA:
Rodriguez-Navarro, Carlos, et al. "Nonclassical crystallization in vivo et in vitro (II): Nanogranular features in biomimetic minerals disclose a general colloid-mediated crystal growth mechanism." Journal of Structural Biology 196.2 (2016): 260-287.

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Zuletzt aktualisiert 2018-14-11 um 20:50