The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals

Kim, Yi‐Yeoun; Freeman, Colin L.; Gong, Xiuqing; Levenstein, Mark A.; Wang, Yunwei; Kulak, Alexander N.; Anduix‐Canto, Clara; Lee, Phillip A.; Li, Shunbo; Chen, Li; Christenson, Hugo K.; Meldrum, Fiona C.

doi:10.1002/anie.201706800

Cited by 50 publications

(45 citation statements)

References 35 publications

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“…Studies in nucleation and growth of CaCO 3 polymorphs in microfluidics are mainly intended to cast light on fundamental aspects of inorganic CaCO 3 crystallization pathways [37][38][39] or biomimetic or biomineralization processes. [40][41][42][43][44][45][46][47][48][49] Zeng et al 39 used microfluidics to control the formation of ACC and transformation pathways to vaterite and calcite, Li et al 38 also studied crystallization pathways but included the use of FTIR in microfluidics and Rodriguez-Ruiz 37 studied how confinement in microfluidic reactors stabilized the hydrated CaCO 3 mineral ikaite. Yashina et al 45 used ex situ SEM to study nucleation and initial growth of CaCO 3 polymorphs formed by mixing Na 2 CO 3 and CaCl 2 in microfluidic droplets, Gong et al, 47 used a gas-liquid microfluidic system to study growth of calcite crystals around obstacles and Kim et al 49 used a similar system to study early stages of CaCO 3 growth in presence of additives.…”

Section: Microfluidics and Cacomentioning

confidence: 99%

Microfluidic Control of Nucleation and Growth of CaCO₃

Sanchez

Köhler

et al. 2018

Crystal Growth & Design

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A novel method for studying nucleation and growth of CaCO 3 crystals in situ has been developed and tested rigorously. We demonstrate that precise flow control is essential and how this is achieved. The method has the advantage that one may study single crystals of polymorphs that are thermodynamically unstable in collections of many crystals and that one obtains precise and accurate growth rates without any extra assumptions. We also demonstrate that at low supersaturations where 2D nucleation does not occur we measure the growth rate constant of calcite to be 5 times larger than that reported by batch methods and two orders of magnitude larger than measured by AFM. Considering the large interest in calcite growth in for example geoscience, environmental science, and industry we consider that it is important to explain the discrepancy of growth rate constants between different methods. The method presented here can easily be applied to many other minerals.

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Section: Microfluidics and Cacomentioning

confidence: 99%

Microfluidic Control of Nucleation and Growth of CaCO₃

Sanchez

Köhler

et al. 2018

Crystal Growth & Design

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“…Interestingly in this case negligible lattice distortions were detected (see Figure S5 and table S1). This emphasizes the importance of the acidic group in facilitating incorporation of MSs into the lattice of calcite probably via the carboxylate group substituting the carbonate group [74] or interacting with calcium ions. Annealing of the samples caused significant broadening of the diffraction peaks and relaxation of the lattice distortions, as shown by the shift in diffraction peaks towards the position of the control calcite sample (Figure 3).…”

Section: Resultsmentioning

confidence: 95%

Acidic monosaccharides become incorporated into calcite single crystals

Lang

Mijowska

Polishchuk

et al. 2020

Preprint

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Carbohydrates, along with proteins and peptides, are known to represent a major class of biomacromolecules involved in calcium carbonate biomineralization. However, in spite of multiple physical or biochemical characterizations, the explicit role of saccharide macromolecules (long chains of carbohydrate molecules) is not yet understood in mineral deposition. In the present study we investigated the influence of two common acidic monosaccharides (MSs), which are the simplest form of carbohydrates and are represented here by glucuronic and galacturonic acids, on the formation of calcite crystals in vitro. We show that the size, morphology and microstructure of calcite crystals are altered when they are grown in the presence of these MSs. More importantly, MSs were found to become incorporated into the calcite crystalline lattice and induce anisotropic lattice distortions, a widely studied phenomenon in other biomolecules related to CaCO3 biomineralization but never before reported in the case of single MSs. Changes in the calcite lattice induced by MS incorporation were precisely determined by the technique of high-resolution synchrotron powder X-ray diffraction. We believe that the results of this research may deepen our understanding of the interaction of saccharide polymers with an inorganic host and shed light on the implications of carbohydrates for biomineralization processes

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“…Microfluidics is most commonly used as am icrobatch system in the form of dropletm icrofluidics to monitor crystal nucleation and growth in nanoliterv olumes. [48][49][50][51][52] To our knowledge, few crystalline materials have been studied in microfluidic devices under continuousf low of ag rowth medium. [38,39,53,54] In this study,w eu sed am odified design of an established microfluidics platform [53] for measurements of struvitec rystallization.…”

Section: Microfluidic Platform For Struvitec Rystallizationmentioning

confidence: 99%

Time‐Resolved Dynamics of Struvite Crystallization: Insights from the Macroscopic to Molecular Scale

Kim

Olympiou

McCoy

et al. 2020

Chemistry A European J

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The crystallization of magnesium ammonium phosphate hexahydrate (struvite) often occurs under conditions of fluid flow, yet the dynamics of struvite growth under these relevant environments has not been previously reported. In this study, we use a microfluidic device to evaluate the anisotropic growth of struvite crystals at variable flow rates and solution supersaturation. We show that bulk crystallization under quiescent conditions yields irreproducible data owing to the propensity of struvite to adopt defects in its crystal lattice, as well as fluctuations in pH that markedly impact crystal growth rates. Studies in microfluidic channels allow for time‐resolved analysis of seeded growth along all three principle crystallographic directions and under highly controlled environments. After having first identified flow rates that differentiate diffusion and reaction limited growth regimes, we operated solely in the latter regime to extract the kinetic rates of struvite growth along the [100], [010], and [001] directions. In situ atomic force microscopy was used to obtain molecular level details of surface growth mechanisms. Our findings reveal a classical pathway of crystallization by monomer addition with the expected transition from growth by screw dislocations at low supersaturation to that of two‐dimensional layer generation and spreading at high supersaturation. Collectively, these studies present a platform for assessing struvite crystallization under flow conditions and demonstrate how this approach is superior to measurements under quiescent conditions.

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The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals

Cited by 50 publications

References 35 publications

Microfluidic Control of Nucleation and Growth of CaCO₃

Microfluidic Control of Nucleation and Growth of CaCO₃

Acidic monosaccharides become incorporated into calcite single crystals

Time‐Resolved Dynamics of Struvite Crystallization: Insights from the Macroscopic to Molecular Scale

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The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals

Cited by 50 publications

References 35 publications

Microfluidic Control of Nucleation and Growth of CaCO3

Microfluidic Control of Nucleation and Growth of CaCO3

Acidic monosaccharides become incorporated into calcite single crystals

Time‐Resolved Dynamics of Struvite Crystallization: Insights from the Macroscopic to Molecular Scale

Contact Info

Product

Resources

About

Microfluidic Control of Nucleation and Growth of CaCO₃

Microfluidic Control of Nucleation and Growth of CaCO₃