Calcium Carbonate Crystallization and Inhibition

Calcium carbonate is one of nature's most versatile structural minerals, forming the shells of mollusks, the skeletons of corals, and the intricate architectures of sea urchin spines through a process called biomineralization, in which organisms exert precise biological control over crystal growth at the nanoscale. Researchers study how proteins, polysaccharides, and other organic molecules regulate nucleation, polymorph selection, and hierarchical organization to produce materials — like nacre — whose toughness far exceeds what the constituent minerals alone would predict. A central challenge is translating these biological strategies into synthetic nanocomposites and bioinspired coatings that replicate the mechanical performance of natural hard tissues, while also understanding and controlling unwanted crystallization, such as scale formation in industrial pipelines or implant surfaces. Active directions include identifying the molecular-level mechanisms by which inhibitors arrest or redirect crystal growth, and engineering hierarchical structures across multiple length scales to close the gap between biological and synthetic material performance.

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Keywords

BiomineralizationBioinspired MaterialsNanocompositesCrystallizationMechanical PropertiesNanoscale Structure