Aspartic acid as a crystal growth catalyst
MetadataShow full item record
Additional Information provides a link to the published version.
Ion desolvation is an important kinetic step in the growth of divalent ionic crystals - a category that encompasses numerous materials relevant to biomineralization. It has recently been shown for one such divalent ionic crystal that the rate-limiting desolvation of the cation can be assisted by the anion and that this process can be surface specific. Here we show that even a simple biological molecule, such as aspartic acid, can have a measurable catalytic effect on barite crystal growth and that this effect is related to the lowering of the activation barrier for cation desolvation. We therefore suggest that growth rate enhancement on specific faces through catalysis of the cation desolvation step may be a viable mechanism for the positive control of biomineralization.
Showing items related by title, author, creator and subject.
Piana, Stefano; Jones, Franca; Gale, Julian (2006)The crystallization of materials from a supersaturated solution is a fundamental chemical process.Although several very successful models that provide a qualitative understanding of the crystal growth process exist, in ...
Rossiter, Angelina Jane (2009)Due to the ductile nature of the sodium nitrate crystal which deforms plastically under high levels of strain, most of the crystal growth studies in aqueous solution have focussed on the influence of tensile strain, ...
Jones, Franca ; Ogden, Mark ; Radomirovic, Tomoko (2019)In this manuscript we investigate an inorganic, anionic promoter of barium sulfate crystallization. Sulfite ions are found to promote barium sulfate crystallization at low concentrations. Turbidimetric experiments show ...