Crystallisation

A Biological Perspective

• Gebundenes Buch

Produktbeschreibung

This volume focuses on the mechanisms of biological crystal growth, including identification of biogenic mineralisation strategies and "non-classical" crystallisation pathways. While it had long been assumed that crystalline biominerals typically form by ion-by-ion growth, it is now recognised that they often precipitate via amorphous precursor phases. This is well established for calcium carbonate and there is growing evidence that biogenic crystalline calcium phosphate phases may form via an analogous route. Significantly, these mechanisms are not unique to the biological world. There is currently great interest from the general crystal growth community in these new and controversial ideas. A number of studies on crystal nucleation have recently re-examined classical nucleation theory, and the observation of pre-nucleation clusters is a recurrent theme of great interest. This controversial result contradicts classical nucleation theory which leads the subject of crystal nucleation and growth via assembly to demand attention. Work is presented in a range of areas including biological crystallisation mechanisms, current ideas in nucleation, amorphous precursor phases and self-assembly crystal growth mechanisms.

Produktdetails

• Verlag: RSC Publishing
• Seitenzahl: 538
• Erscheinungstermin: 30. November 2012
• Englisch
• Abmessung: 237mm x 163mm x 33mm
• Gewicht: 930g
• ISBN-13: 9781849734509
• ISBN-10: 184973450X
• Artikelnr.: 34473639

Autorenporträt

Faraday Discussions documents a long-established series of Faraday Discussion meetings which provide a unique international forum for the exchange of views and newly acquired results in developing areas of physical chemistry, biophysical chemistry and chemical physics. The papers presented are published in the Faraday Discussion volume together with a record of the discussion contributions made at the meeting. Faraday Discussions therefore provide an important record of current international knowledge and views in the field concerned. The latest (2012) impact factor of Faraday Discussions is 3.82.

Inhaltsangabe

Introductory Lecture: Spiers Memorial Lecture: Effect of interaction
specificity on the phase behaviour of patchy particles; Amino acids form
prenucleation clusters: ESI-MS as a fast detection method in comparison to
analytical ultracentrifugation; Probing the structure and stability of
calcium carbonate pre-nucleation clusters; Exploring the influence of
organic species on pre- and post-nucleation calcium carbonate; Control of
the nucleation of sickle cell hemoglobin polymers by free hematin;
Structural evolution, formation pathways and energetic controls during
template-directed nucleation of CaCO3; A two-step mechanism for crystal
nucleation without supersaturation; General discussion; Phase behavior of
colloidal silica rods; Inorganic salts direct the assembly of charged
nanoparticles into composite nanoscopic spheres, plates, or needles;
Real-space studies of the structure and dynamics of self-assembled
colloidal clusters; Aggregation of ferrihydrite nanoparticles in aqueous
systems; Biomimetic type morphologies of calcium carbonate grown in absence
of additives; Computer simulation of soft matter at the growth front of a
hard-matter phase: incorporation of polymers, formation of transient pits
and growth arrest; General discussion; A metastable liquid precursor phase
of calcium carbonate and its interactions with polyaspartate; The role of
cluster formation and metastable liquid-liquid phase separation in protein
crystallization; Polymer-induced liquid precursor (PILP) phases of calcium
carbonate formed in the presence of synthetic acidic polypeptides-relevance
to biomineralization; Precipitation of ACC in liposomes-a model for
biomineralization in confined volumes; The role of the amorphous phase on
the biomimetic mineralization of collagen; Revisiting geochemical controls
on patterns of carbonate deposition through the lens of multiple pathways
to mineralization; General discussion; Aragonite crystal orientation in
mollusk shell nacre may depend on temperature. The angle
spread of crystalline aragonite tablets records the water temperature at
which nacre was deposited by Pinctada margaritifera; Merging models of
biomineralisation with concepts of nonclassical crystallisation: is a
liquid amorphous precursor involved in the formation of the prismatic layer
of the Mediterranean Fan Mussel Pinna nobilis?; Oligomer formation,
metalation, and the existence of aggregation-prone and mobile sequences
within the intracrystalline protein family, Asprich; GSP-37, a novel
goldfish scale matrix protein: identification, localization and functional
analysis; CaCO3/Chitin hybrids: recombinant acidic peptides based on a
peptide extracted from the exoskeleton of a crayfish controls the
structures of the hybrids; General discussion; Concluding remarks; The
thermodynamics of calcite nucleation at organic interfaces: Classical vs.
non-classical pathways; Poster titles; list of participants; index of
contributors