Le Rêve Ultime en Cristallisation : contrôler la pureté, la taille et la forme des cristaux

From marine shells to innovative materials, crystals play an essential role in nature and in many industrial applications. However, reproducing in the laboratory the conditions that allow scientists to control their formation remains a major scientific challenge. Today, advances in crystallization research are helping us better understand and control crystal growth.

Crystals can exist in different forms called polymorphs : the same chemical composition can give rise to structures with different properties. This phenomenon is particularly important in many fields, including geology, materials science, and the pharmaceutical industry.

At ISTerre, German Montes Hernandez studies these processes in order to reproduce in the laboratory the precision observed in natural biomineralization phenomena. His work has made it possible to control the formation of several calcium carbonate polymorphs, including calcite, aragonite, and vaterite.

Thanks to advanced observation techniques that allow scientists to monitor crystal formation in real time, this work opens new perspectives for understanding crystallization processes and designing crystalline materials with controlled properties.