Selective crystallization of calcium salts by poly(acrylate)-grafted chitosan

An Introduction to Bio‐nanohybrid Materials

“…Many of these studies have been carried out using the same biopolymers that act as insoluble matrices for CaCO 3 crystallization in nature, such as collagen and chitin [79,81]. Calcium carbonate polymorphs are also formed on other natural and synthetic polymers including elastin that controls the formation of calcite [82], poly(ethylene glycol) that forces the selective formation of aragonite [83], poly(a-L-aspartate) that promotes vaterite formation with a helical morphology [84], or poly(acrylate)-grafted chitosan giving rise to CaCO 3 crystals of unusual morphology [85] similar to those created using poly(N-isopropylacrylamide-co-(4-vinylpyridine)) as the platform for mineralization [86]. As confirmed by these reports, materials scientists are able to produce calcium carbonate organic hybrid materials with defined morphologies (Figure 1.5) by tuning the polymers and biomacromolecules that control the nucleation and growth of calcium carbonate crystals.…”

“…It has been proved that nanocrystalline HAP offers better results than microcrystalline HAP with respect to osteoblast cells adhesion, differentiation and proliferation, as well as [84] and [85] with permission from Elsevier, and (C) from [88] (reproduced by permission of The Royal Society of Chemistry).…”

Effect of Alginate from Chilean Lessonia nigrescens and MWCNTs on CaCO3 Crystallization by Classical and Non-Classical Methods

“…GD crystallization of CaCO 3 crystals in the presence of ALG Les and MWCNTs derivatives as polymeric additives was carried out at room temperature for 24 h. GD method was performed as we described in our previous works [33][34][35][36].…”

Electrocrystallization of CaCO3 Crystals Obtained through Phosphorylated Chitin

“…It nucleates in three known crystalline polymorphs: calcite, aragonite and vaterite [11][12][13]. For understanding the biological control of CaCO 3 crystallization many studies regarding the effect of natural and synthetic polymers, copolymers, functionalized biopolymers, and adsorption surface phenomena involved in this process have been reported [14][15][16][17][18][19][20]. In order to achieve control over this biomineral it is important to understand the mechanisms of how crystals interacts between organic and inorganic components using different classical crystallization setup in a similar manner that they occur in nature.…”