Single Amino Acids as Additives Modulating CaCO3 Mineralization

Briegel, Christoph; Seto, Jong

doi:10.5772/39297

Cited by 9 publications

(8 citation statements)

References 24 publications

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“…Amino acids can act as molecular modulators by complexing Ca 2+ or CO 3 2– ions free in solution or present at crystal faces. ,,− Excluding glutamic acid, all amino acids used in our experiments have a side chain consisting of a methylene unit prior to their distinct residues: 2-ethyl, imidazole, hydroxyl, thiol, and carboxylate for Leu, His, Ser, Cys, and Asp, respectively (Table ). Glutamic acid has a very similar structure to aspartic acid but contains an additional methylene unit in its side chain.…”

Section: Resultsmentioning

confidence: 99%

The Role of Residue Acidity on the Stabilization of Vaterite by Amino Acids and Oligopeptides

Hood

Landfester

Muñoz‐Espí

2014

Crystal Growth & Design

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Nature uses proteins containing acidic residues to stabilize thermodynamically unstable calcium carbonate polymorphs, producing complex composite structures and controlling their final morphology. Stabilization of vaterite, the most thermodynamically unstable polymorph of anhydrous calcium carbonate, is possible in the presence of soluble biogenic molecules. We analyze here, in a systematic manner, the effect of the side-chain acidity of different amino acids on vaterite stabilization by following the kinetics of calcium carbonate crystallization through the free calcium concentration, pH, and turbidity. Acidic residues from aspartic and glutamic acid showed the greatest stabilization of vaterite, while cysteine and serine only partially stabilize this polymorph. Using the method of direct mixing of calcium and carbonate ions, we were able to further tailor the kinetics of calcium carbonate crystal growth by choosing the carbonate source as either sodium bicarbonate or sodium carbonate. Finally, oligopeptides of two oppositely charged amino acids, aspartic acid and histidine, were selected to study the effect of the chain length on the interactions between additive and calcium carbonate. Control over the interactions between ions, crystal faces, and charged additives results in stabilizing vaterite, which provides an insight into biomineralization processes.

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Section: Resultsmentioning

confidence: 99%

The Role of Residue Acidity on the Stabilization of Vaterite by Amino Acids and Oligopeptides

Hood

Landfester

Muñoz‐Espí

2014

Crystal Growth & Design

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“…Amino acids can act as nucleation and growth-promoting molecules by reducing the activation energy of nucleation and promoting the growth of the crystals. 40 Generally, most of the proteins that facilitate CaCO 3 biomineralization are rich in acidic amino acids. 9,16 In contrast, few studies have revealed that acidic amino acids inhibit CaCO 3 crystallization and promote the stabilization of the unstable phase of CaCO 3 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…CaCO 3 formation in the presence of proteins is mostly related to the amino acid sequence of the protein. Amino acids can act as nucleation and growth-promoting molecules by reducing the activation energy of nucleation and promoting the growth of the crystals . Generally, most of the proteins that facilitate CaCO 3 biomineralization are rich in acidic amino acids. , In contrast, few studies have revealed that acidic amino acids inhibit CaCO 3 crystallization and promote the stabilization of the unstable phase of CaCO 3 . , Also, some matrix proteins that facilitate CaCO 3 biomineralization are rich in basic amino acid residues .…”

Section: Resultsmentioning

confidence: 99%

Artificial Fusion Protein to Facilitate Calcium Carbonate Mineralization on Insoluble Polysaccharide for Efficient Biocementation

Nawarathna

Nakashima

Kawabe

et al. 2021

ACS Sustainable Chem. Eng.

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Biomineralization is a process of mineral formation in living organisms. Compared with nonbiogenic minerals, biominerals can be defined as organic−inorganic hybrid materials that have excellent physical and optical properties. In the current study, an artificial protein mimicking the outer shell of crayfish, composed of CaCO 3 , chitin, and proteins, was developed to facilitate organic−inorganic hybrid material formation by precipitation of calcium carbonate on the chitin matrix. The fusion protein (CaBP-ChBD) was constructed by introducing a shortsequence calcite-binding peptide (CaBP) into the chitin-binding domain (ChBD). Calcium carbonate precipitation experiments by enzymatic urea hydrolysis revealed that a significant increase in the CaCO 3 formation was achieved by adding CaBP-ChBD. Also, CaCO 3 was efficiently deposited on chitin particles decorated with CaBP-ChBD. Most interestingly, CaBP-ChBD would improve the performance in sand solidification more efficiently and sustainably in the process of biocementation technique. The developed recombinant protein could be used for the sustainable production of organic−inorganic green materials for engineering applications.

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“… 16 Several groups have examined the effect of biomolecules on the effects of CaCO 3 mineralization. 17 The polymorph and morphology of CaCO 3 were reported to be affected by biomolecules. 18 , 19 , 20 , 21 In a previous study, the role of organic molecules was indicated as the reason for the improved mechanical performance of consolidated loose sands via MICP compared to chemically synthesized CaCO 3, where organic molecules are not present.…”

Section: Introductionmentioning

confidence: 99%

Effect of proteins on biocementation in construction materials

Baffoe,

Dauer,

Ghahremaninezhad

2024

iScience

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Single Amino Acids as Additives Modulating CaCO3 Mineralization

Cited by 9 publications

References 24 publications

The Role of Residue Acidity on the Stabilization of Vaterite by Amino Acids and Oligopeptides

The Role of Residue Acidity on the Stabilization of Vaterite by Amino Acids and Oligopeptides

Artificial Fusion Protein to Facilitate Calcium Carbonate Mineralization on Insoluble Polysaccharide for Efficient Biocementation

Effect of proteins on biocementation in construction materials

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