Layered growth of crayfish gastrolith: About the stability of amorphous calcium carbonate and role of additives

2015 ◽  
Vol 189 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Wouter J.E.M. Habraken ◽  
Admir Masic ◽  
Luca Bertinetti ◽  
Ali Al-Sawalmih ◽  
Lilah Glazer ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Amorphous Calcium Carbonate ◽  
Layered Growth ◽  
The Stability

The role of pH and Mg on the stability and crystallization of amorphous calcium carbonate

2012 ◽  
Vol 536 ◽  
pp. S477-S479 ◽  
Author(s):  
J.D. Rodriguez-Blanco ◽  
S. Shaw ◽  
P. Bots ◽  
T. Roncal-Herrero ◽  
L.G. Benning
Keyword(s):  
Calcium Carbonate ◽  
Amorphous Calcium Carbonate ◽  
The Stability

scholarly journals Role of Internal Stress in the Early-Stage Nucleation of Amorphous Calcium Carbonate Gels

2020 ◽  
Vol 10 (12) ◽  
pp. 4359 ◽  
Author(s):  
Qi Zhou ◽  
Tao Du ◽  
Lijie Guo ◽  
Gaurav Sant ◽  
Mathieu Bauchy
Keyword(s):  
Molecular Dynamics ◽  
Calcium Carbonate ◽  
Driving Force ◽  
Early Stage ◽  
Local Stress ◽  
Amorphous Calcium Carbonate ◽  
Local Coordination ◽  
Dynamics Simulations ◽  
Over Time

Although calcium carbonate (CaCO3) precipitation plays an important role in nature, its mechanism remains only partially understood. Further understanding the atomic driving force behind the CaCO3 precipitation could be key to facilitate the capture, immobilization, and utilization of CO2 by mineralization. Here, based on molecular dynamics simulations, we investigate the mechanism of the early-stage nucleation of an amorphous calcium carbonate gel. We show that the gelation reaction manifests itself by the formation of some calcium carbonate clusters that grow over time. Interestingly, we demonstrate that the gelation reaction is driven by the existence of some competing local molecular stresses within the Ca and C precursors, which progressively get released upon gelation. This internal molecular stress is found to originate from the significantly different local coordination environments exhibited by Ca and C atoms. These results highlight the key role played by the local stress acting within the atomic network in governing gelation reactions.

Role of Magnesium Ion in the Stabilization of Biogenic Amorphous Calcium Carbonate: A Structure−Function Investigation

2010 ◽  
Vol 22 (1) ◽  
pp. 161-166 ◽  
Author(s):  
Yael Politi ◽  
David R. Batchelor ◽  
Paul Zaslansky ◽  
Bradley F. Chmelka ◽  
James C. Weaver ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Structure Function ◽  
Magnesium Ion ◽  
Amorphous Calcium Carbonate

scholarly journals Additives Control the Stability of Amorphous Calcium Carbonate via Two Different Mechanisms: Surface Adsorption versus Bulk Incorporation

2020 ◽  
Vol 30 (23) ◽  
pp. 2000003 ◽  
Author(s):  
Zhaoyong Zou ◽  
Xiaofei Yang ◽  
Marie Albéric ◽  
Tobias Heil ◽  
Qihang Wang ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Surface Adsorption ◽  
Amorphous Calcium Carbonate ◽  
The Stability

scholarly journals Biomineralisation by earthworms – an investigation into the stability and distribution of amorphous calcium carbonate

2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Mark E Hodson ◽  
Liane G Benning ◽  
Bea Demarchi ◽  
Kirsty E H Penkman ◽  
Juan D Rodriguez-Blanco ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Amorphous Calcium Carbonate ◽  
The Stability

scholarly journals Anisotropic nanowire growth via a self-confined amorphous template process: A reconsideration on the role of amorphous calcium carbonate

Nano Research ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 1334-1345 ◽  
Author(s):  
Li-Bo Mao ◽  
Lei Xue ◽  
Denis Gebauer ◽  
Lei Liu ◽  
Xiao-Fang Yu ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Nanowire Growth ◽  
Amorphous Calcium Carbonate ◽  
Template Process

scholarly journals Role of Impurities in the Kinetic Persistence of Amorphous Calcium Carbonate: A Nanoscopic Dynamics View

2018 ◽  
Vol 122 (29) ◽  
pp. 16983-16991 ◽  
Author(s):  
Ayumi Koishi ◽  
Alejandro Fernandez-Martinez ◽  
Beatrice Ruta ◽  
Monica Jimenez-Ruiz ◽  
Roberta Poloni ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Amorphous Calcium Carbonate

Influence of Phosphate Ions on the Stability of Amorphous Calcium Carbonate

2006 ◽  
Vol 309-311 ◽  
pp. 179-182 ◽  
Author(s):  
S. Akhtar ◽  
J.E. Barralet ◽  
David Farrar ◽  
Adrian J. Wright
Keyword(s):  
Calcium Carbonate ◽  
Amorphous Calcium Carbonate ◽  
Molar Ratios ◽  
Phosphate Ions ◽  
The Stability

Amorphous calcium carbonate (ACC) occurs with varying stabilities in different organisms. It is thought that the stability is influenced by certain ions and proteins. We describe here a study investigating the particular influence of phosphate ions on the stability of ACC. Synthesised ACC was treated with different concentrations of Na2HPO4 and molar ratios of PO4:Ca ≥ 12:1 were shown to be effective in preventing crystallisation of ACC to calcite. The nature of the resulting sample is discussed.

scholarly journals Additives influence the phase behavior of calcium carbonate solution by a cooperative ion-association process

2018 ◽  
Vol 6 (3) ◽  
pp. 449-457 ◽  
Author(s):  
Zhaoyong Zou ◽  
Iryna Polishchuk ◽  
Luca Bertinetti ◽  
Boaz Pokroy ◽  
Yael Politi ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Phase Behavior ◽  
Ion Association ◽  
Carbonate Solution ◽  
Amorphous Calcium Carbonate ◽  
Biologically Relevant

The role of biologically relevant additives on the phase behavior of calcium carbonate solution was studied by investigating their effects on the formation of amorphous calcium carbonate.

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