Formation of Helically Structured Chitin/CaCO<sub>3</sub>Hybrids through an Approach Inspired by the Biomineralization Processes of Crustacean Cuticles

Matsumura, Shunichi; Kajiyama, Satoshi; Nishimura, Tatsuya; Kato, Takashi

doi:10.1002/smll.201501083

Cited by 75 publications

(73 citation statements)

References 65 publications

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“…Colloidal liquid crystals of crystalline polysaccharides can be used as templates to develop hybrid materials with helical structures showing mechanical toughness,t hat are environmental benign, and have optical functions. [199][200][201] CaCO 3 / polymer composites with helically ordered structures were prepared using colloidal chiral nematic liquid crystals of chitin nano-whiskers ( Figure 10). [199,200] Acidification of the chitin templates increase affinity between the organic templates and the inorganic components.I nn ature,t he cholesteric structures of chitin fibril, acidic proteins,and CaCO 3 are shown in the exoskeletons of crustaceans and these helical hybrid structures are responsible for the mechanical toughness of the composites.…”

Section: Angewandte Chemiementioning

confidence: 99%

Functional Liquid Crystals towards the Next Generation of Materials

et al. 2018

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Since the discovery of the liquid-crystalline state in 1888, liquid crystal science has made great advances through fusion with various technologies and disciplines. Recently, new molecular design strategies and new self-assembled structures have been developed as a result of the progress made in synthetic procedures and characterization techniques. Since these liquid crystals exhibit new functions and properties derived from their nanostructures and alignment, a variety of new functions for liquid crystals, such as transport for energy applications, separation for environmental applications, chromism, sensing, electrooptical effects, actuation, and templating have been proposed. This Review presents recent advances of liquid crystals that should contribute to the next generation of materials.

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Section: Angewandte Chemiementioning

confidence: 99%

Functional Liquid Crystals towards the Next Generation of Materials

et al. 2018

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“…Recently, stabilization of amorphous CaCO 3 by an acidic polymer and its promising application for the development of hybrid materials have been reported . We found that this stabilized amorphous CaCO 3 transformed into crystals on various polymer templates …”

Section: Introductionmentioning

confidence: 73%

“…[34,35] We found that this stabilized amorphous CaCO 3 transformed into crystals on various polymer templates. [36][37][38] Previously,w ed emonstrated that these methodso nt he formationo fC aCO 3 thin-film hybridsw ere applicable to other alkaline-earth carbonate compounds. [33,39,40] Crystallizationo f cobalt hydroxide [41] and manganese oxyhydroxide [42] have also been exploredb yu sing the diffusion of ammonium vapor.…”

Section: Introductionmentioning

confidence: 99%

Biomineralization‐Inspired Preparation of Zinc Hydroxide Carbonate/Polymer Hybrids and Their Conversion into Zinc Oxide Thin‐Film Photocatalysts

Matsumura

Horiguchi

Nishimura

et al. 2016

Chemistry A European J

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The development of ZnO thin films has been achieved through the conversion of zinc hydroxide carbonate thin-film crystals. Crystallization of this compound is induced by a biomineralization-inspired method with polymer-stabilized amorphous precursors. The crystals grow radially on polymer matrices, leading to the formation of zinc hydroxide carbonate/polymer thin-film hybrids that fully cover the substrate. These hybrids are converted into ZnO and retain their thin-film morphologies. The resultant ZnO thin films exhibit a preferential crystallographic orientation that is attributed to the alignment of zinc hydroxide carbonate crystals before conversion. In addition, a photocatalytic function of the ZnO thin films has been demonstrated by analyzing the oxidation reaction of 2-propanol. The biomineralization-inspired approach reported herein is a promising way to develop ZnO materials with controlled morphologies and structures for photocatalytic applications.

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“…Matsumura et al reported that a twisted plywood structure mimicking lobster cuticle could be constructed via a template of cholesteric liquid crystal (LC) formed from chitin whisker. [59] A more universal and controllable method, however, is magnetically assisted slip casting (MASC) [60] or magnetically assisted 3D printing. [61,62] Ferrand et al [60] demonstrated that alumina nanoplatelets coated with superparamagnetic iron oxide nanoparticles could be assembled by applying an external rotating magnetic field.…”

Section: Mimicking Of Architecturementioning

confidence: 99%

High‐Performance Nanocomposites Inspired by Nature

2017

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Over the eons of evolutionary time, natural materials, including nacre, bone, lobster cuticle, and many others, developed delicate multiscale structures demonstrating outstanding properties. These natural materials provide endless inspiration for the fabrication of novel bioinspired structural materials. Extensive research has revealed the mechanism responsible for natural materials' properties and shows that high-performance structural materials could be fabricated via bioinspired strategies. [1][2][3][4][5][6][7][8][9][10] With the quest to develop novel bioinspired materials, it is essential to refine some basic scientific principles that can guide bioinspired fabrication.Recent research has indicated that the amplification of natural materials' mechanical properties far beyond those of the components that comprise them originates mainly from: i) a hierarchical micro-/nanoscale architecture and ii) abundant effective interface interactions. Here, we follow the roadmap of "discovery, invention, and creation," as shown in Figure 1, to give insight into the development of bioinspired structural materials. In the "discovery" section, natural materials are described as a source of inspiration. Bioinspired nanocomposites can be invented to mimic or even to surpass natural materials' attributes, as described in the "invention" section. We illustrate how the basic principles could work for bioinspired nanocomposites with different building blocks and fabrication approaches. Finally, in the "creation" section, we review novel multifunctional nanocomposites with properties that natural materials rarely possess. To provide a vision and inspiration for future research, we conclude with our perspectives on new and promising directions in the field, along with problems remaining to be solved. Discovery: Natural Materials Orderly Hierarchical ArchitecturesNatural materials are made at ambient temperatures from a relatively small number of ingredients that exhibit rather meager properties. Almost all of them are composites with orderly hierarchical architectures that arrest crack propagation, thus preventing catastrophic failure. Insight into the architecture of a typical natural material is the key to understanding the superiority of the biomimetic strategy for making novel synthetic materials.Natural materials, including nacre, bone, and the lobster cuticle, exhibit excellent mechanical properties, combining high strength and toughness. Such materials have the added benefit of being light in weight. These advantageous features are due to such natural materials' orderly hierarchical architectures and abundant interface interactions. How to utilize these design principles created by nature to fabricate high-performance bioinspired nanocomposites remains a great research challenge. A logical roadmap for developing these nanocomposites can be described as "discovery, invention, and creation." Here, the discovery of the relationship between natural materials' design principles and such materials' extraordinary mechanical proper...

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Formation of Helically Structured Chitin/CaCO₃Hybrids through an Approach Inspired by the Biomineralization Processes of Crustacean Cuticles

Cited by 75 publications

References 65 publications

Functional Liquid Crystals towards the Next Generation of Materials

Functional Liquid Crystals towards the Next Generation of Materials

Biomineralization‐Inspired Preparation of Zinc Hydroxide Carbonate/Polymer Hybrids and Their Conversion into Zinc Oxide Thin‐Film Photocatalysts

High‐Performance Nanocomposites Inspired by Nature

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Formation of Helically Structured Chitin/CaCO3Hybrids through an Approach Inspired by the Biomineralization Processes of Crustacean Cuticles

Cited by 75 publications

References 65 publications

Functional Liquid Crystals towards the Next Generation of Materials

Functional Liquid Crystals towards the Next Generation of Materials

Biomineralization‐Inspired Preparation of Zinc Hydroxide Carbonate/Polymer Hybrids and Their Conversion into Zinc Oxide Thin‐Film Photocatalysts

High‐Performance Nanocomposites Inspired by Nature

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Formation of Helically Structured Chitin/CaCO₃Hybrids through an Approach Inspired by the Biomineralization Processes of Crustacean Cuticles