Bio‐Inspired Synthesis and Mechanical Properties of Calcite–Polymer Particle Composites

Kim, Yi‐Yeoun; Ribeiro, Luis; Maillot, Fabien; Ward, Oliver; Eichhorn, Stephen J.; Meldrum, Fiona C.

doi:10.1002/adma.200903743

Cited by 127 publications

(190 citation statements)

References 46 publications

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“…Similar surface layer incorporation has been reported for other particle-crystal systems and is usually attributed to a competition between growth rate and strength of attraction between the two components. 56,57 In the current system, we propose that a combination of the limited supply of Cu 2+ ions (as a result of small reaction volumes) and the vapor diffusion of hydrazine is responsible for controlling the growth rate of the crystallization. Similarly, we hypothesize that the limited volume allows for only a thin layer of Cu2O to grow over the embedded nanoparticles before eventual frustration of growth as a result of depletion of free ions.…”

Section: Discussionmentioning

confidence: 99%

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures

DiCorato¹,

Asenath‐Smith²,

Kulak

et al. 2016

Crystal Growth & Design

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Abstract:A promising approach to obtaining multi-functional materials with tunable properties is the incorporation of second phase constituents (e.g., particles, fibers) within inorganic crystals. To date, however, the specific chemical and physical controls over incorporation are only known for a few select systems. In this study, a simple wedge is used as a confining structure to systematically control the chemical and physical aspects of the crystallization microenvironment to promote the interaction between copper (I) oxide (Cu2O) crystals and alkanethiolfunctionalized gold nanoparticles (Au np), producing a metal-semiconductor composite. Physically, the confining wedge geometry provides (vapor) diffusion-limited growth conditions. Chemically functionalizing both the Au np surfaces and the glass slides that form the wedge promotes the interaction of Au np with the growing Cu2O crystals. The physical confinement of the wedge structure, as well as optimization of its surface chemistry are required to achieve this interaction. These findings demonstrate that Au/Cu2O can be used as a model system to inform the synthesis of other metal-semiconductor heterostructures.

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Section: Discussionmentioning

confidence: 99%

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures

DiCorato¹,

Asenath‐Smith²,

Kulak

et al. 2016

Crystal Growth & Design

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“…Examples include sea urchin skeletons, mollusk shells, teeth, and bones, etc. More strikingly, while many biologic inorganic/ organic composite materials are often in the form of amorphous or polycrystalline aggregates, some biominerals can retain single crystal morphology even with the inclusion of foreign components [2,5,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Inspired by the biologically controlled mineral growth and the unique properties of the biominerals, significant efforts have been focused on the synthesis of artificial materials with controlled architectures and superior functionalities similar to or even outperforming those biominerals produced in nature [5,9,10,11]. As one of the most abundant biominerals, calcium carbonate has been studied extensively due to its unique morphologies [12,13], hierarchical organization [14,15], and importance in biological systems [16].…”

Section: Introductionmentioning

confidence: 99%

Occlusion of magnetic nanoparticles within calcium carbonate single crystals under external magnetic field

Zhang

Huang

Tao

et al. 2017

Pure and Applied Chemistry

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This work studied the growth of calcium carbonate single crystals on top of the monolayer of Fe 3 O 4 @SiO 2 nanoparticles (NPs) with added external magnetic field. It showed that the occlusion process of the NPs into calcium carbonate single crystals varies as the force balance on the NPs shifts. Under no or weak magnetic field, the NPs are relatively mobile, the separation force from the substrate on NPs due to the growing calcium carbonate crystals is larger than the attraction force to the substrate by the magnetic field. The complete occlusion of the NPs into the single crystals is therefore observed. As the magnetic field strength increases, the balance shifts toward the attraction force. The mobility of NPs decreases and partial occlusion of the NPs into the single crystals is gradually observed. The findings in this study offer further insight into the occlusion process experienced by the NPs and also potential approach in engineering the force balance for the design and generation of composite materials that occlude foreign materials into their matrix.

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“…27,28 Particulate additives can also be easily visualized using electron microscopy or atomic force microscopy 29 and quantified with thermal analysis. 18,21,22,30,31 The quantification of occluded small organic molecules remains more challenging, however, 13, 14, 19 unless they have a key signature such as fluorescence.…”

Section: Introductionmentioning

confidence: 99%

Rapid Screening of Calcium Carbonate Precipitation in the Presence of Amino Acids: Kinetics, Structure, and Composition

Green

Ihli

Kim

et al. 2016

Crystal Growth & Design

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Soluble additives are widely used to control crystallization, leading to definition of properties including size, morphology, polymorph and composition. However, due to the number of potential variables in these experiments, it is typically extremely difficult to identify reaction conditions -as defined by solution compositions, temperatures and combinations of additives -that give the desired product. This article introduces a high throughput methodology which addresses this challenge and enables the streamlined preparation and characterization of crystalline materials. Using calcium carbonate precipitated in the presence of selected amino acids as a model system, we use well plates as micro volume crystallizers, and an accurate liquid handling pipetting workstation for sample preparation. Following changes in the solution turbidity using a plate reader delivers information about the reaction kinetics, while semi automated scanning electron microscopy, powder XRD and Raman microscopy provide structural information about the library of crystalline products. Of particular interest for the CaCO3 system is the development of fluorescence based protocols which rapidly evaluate the amounts of the additives occluded within the crystals. Together, these methods provide a strategy for efficiently screening a broad reaction space, where this can both accelerate the ability to generate crystalline materials with target properties, and develop our understanding of additive directed crystallization.

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Bio‐Inspired Synthesis and Mechanical Properties of Calcite–Polymer Particle Composites

Cited by 127 publications

References 46 publications

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures

Occlusion of magnetic nanoparticles within calcium carbonate single crystals under external magnetic field

Rapid Screening of Calcium Carbonate Precipitation in the Presence of Amino Acids: Kinetics, Structure, and Composition

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Bio‐Inspired Synthesis and Mechanical Properties of Calcite–Polymer Particle Composites

Cited by 127 publications

References 46 publications

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu2O Metal–Semiconductor Heterostructures

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu2O Metal–Semiconductor Heterostructures

Occlusion of magnetic nanoparticles within calcium carbonate single crystals under external magnetic field

Rapid Screening of Calcium Carbonate Precipitation in the Presence of Amino Acids: Kinetics, Structure, and Composition

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Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures

Cooperative Effects of Confinement and Surface Functionalization Enable the Formation of Au/Cu₂O Metal–Semiconductor Heterostructures