Emily Asenath-Smith, Hanying Li, Ellen C. Keene, Zhi Wei Seh and Lara A. Estroff Hydrogels: Crystal Growth of Calcium Carbonate in Hydrogels as a Model of Biomineralization (Adv. Funct. Mater. 14/2012) Advanced Functional Materials 22
As reported by Lara A. Estroff and co-workers on page 2891, the porous networks formed by hydrogel matrices (freeze-dried silica gel in the background) provide a versatile medium for crystal growth of a wide range of calcium carbonate structures. Shown from top to bottom are single-crystal equilibrium morphologies, non-equilibrium “hopper crystals”, polycrystalline aggregates, and spherulites. In addition, the crystalline products can incorporate the hydrogel matrix forming crystalline composites.
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