Well ordered-microstructure bioceramics

Tian, Li; Han, Fei; Xue, Jie; Ma, Haitao; Wang, Yongzhe; Zhuang, Mingxiang; Ren, Dudi; Wang, Liang; Chang, Jiang; Wu, Chengtie

doi:10.1016/j.apmt.2021.101194

Cited by 6 publications

(14 citation statements)

References 58 publications

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Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

“…One major reason is the mineral and the matrix can be sufficiently mixed and organized even when the fraction of the matrix is very low. In a recent example, graphene oxide nanosheets were used as the matrix that directed the mineralization of hydroxyapatite to form a composite platelet (Figure e) . The platelets were assembled by infiltration to form an organized green body and then transformed to the final MBSMs via sintering.…”

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

“…In a recent example, graphene oxide nanosheets were used as the matrix that directed the mineralization of hydroxyapatite to form a composite platelet (Figure 5e). 117 The platelets were assembled by infiltration to form an organized green body and then transformed to the final MBSMs via sintering. The inorganic contents of the MBSMs could be extremely high (97.5 wt %), while the materials maintained good mechanical performance.…”

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

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Matrix-Directed Mineralization for Bulk Structural Materials

Mao

Meng

et al. 2022

J. Am. Chem. Soc.

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Mineral-based bulk structural materials (MBSMs) are known for their long history and extensive range of usage. The inherent brittleness of minerals poses a major problem to the performance of MBSMs. To overcome this problem, design principles have been extracted from natural biominerals, in which the extraordinary mechanical performance is achieved via the hierarchical organization of minerals and organics. Nevertheless, precise and efficient fabrication of MBSMs with bioinspired hierarchical structures under mild conditions has long been a big challenge. This Perspective provides a panoramic view of an emerging fabrication strategy, matrix-directed mineralization, which imitates the in vivo growth of some biominerals. The advantages of the strategy are revealed by comparatively analyzing the conventional fabrication techniques of artificial hierarchically structured MBSMs and the biomineral growth processes. By introducing recent advances, we demonstrate that this strategy can be used to fabricate artificial MBSMs with hierarchical structures. Particular attention is paid to the mass transport and the precursors that are involved in the mineralization process. We hope this Perspective can provide some inspiring viewpoints on the importance of biomimetic mineralization in material fabrication and thereby spur the biomimetic fabrication of high-performance MBSMs.

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Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

Section: Artificial Mbsms Via Matrix-directed Mineralizationmentioning

confidence: 99%

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Matrix-Directed Mineralization for Bulk Structural Materials

Mao

Meng

et al. 2022

J. Am. Chem. Soc.

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“…There are several strategies to construct the laminated structure, such as directional assembly, layer-by-layer assembly, freeze casting and assembly mineralization [ 27–30 ]. Among them, the directional assembly based on 2D templates is one of the most simple and effective ways to fabricate laminated bulk materials.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired laminated bioceramics with high toughness for bone tissue engineering

Huang

Zhai

Xue

et al. 2022

Regenerative Biomaterials

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For the research of biomaterials in bone tissue engineering, it is still a challenge to fabricate bioceramics that overcome brittleness while maintaining the great biological performance. Here, inspired by the toughness of natural materials with hierarchical laminated structure, we presented a directional assembly-sintering approach to fabricate laminated MXene/calcium silicate-based (L-M/CS) bioceramics. Benefiting from the orderly laminated structure, the L-M/CS bioceramics exhibited significantly enhanced toughness (2.23 MPa·m1/2) and high flexural strength (145 MPa), which were close to the mechanical properties of cortical bone. Furthermore, the L-M/CS bioceramics possessed more suitable degradability than traditional CaSiO3 bioceramics due to the newly formed CaTiSiO5 after sintering. Moreover, the L-M/CS bioceramics showed good biocompatibility and could stimulate the expression of osteogenesis-related genes. The mechanism of promoting osteogenic differentiation had been shown to be related to the Wnt signaling pathway. This work not only fabricated calcium silicate-based bioceramics with excellent mechanical and biological properties for bone tissue engineering, but also provided a strategy for the combination of bionics and bioceramics.

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“…Such structure plays a significant role in improving the strength, toughness and flexibility of the materials via increasing the fracture path and energy absorption. [21][22][23][24] Therefore, it leads us to a promising approach to enhancing the flexibility and mechanical properties of ceramics by replicating the concentric cylinder micro/nanostructure of natural materials.…”

mentioning

confidence: 99%

Prestrain Programmable 4D Printing of Nanoceramic Composites with Bioinspired Microstructure

Liu

et al. 2022

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Four‐dimensional (4D) printing enables programmable, predictable, and precise shape change of responsive materials to achieve desirable behaviors beyond conventional three‐dimensional (3D) printing. However, applying 4D printing to ceramics remains challenging due to their intrinsic brittleness and inadequate stimuli‐responsive ability. Here, this work proposes a conceptional combination of bioinspired microstructure design and a programmable prestrain approach for 4D printing of nanoceramics. To overcome the flexibility limitation, the bioinspired concentric cylinder structure in the struts of 3D printed lattices are replicated to develop origami nanoceramic composites with high inorganic content (95 wt%). Furthermore, 4D printing is achieved by applying a programmed prestrain to the printed lattices, enabling the desired deformation when the prestrain is released. Due to the bioinspired concentric cylinder microstructures, the printed flexible nanoceramic composites exhibit superior mechanical performance and anisotropic thermal management capability. Further, by introducing oxygen vacancies to the ceramic nanosheets, conductive nanoceramic composites are prepared with a unique sensing capability for various sensing applications. Hence, this research breaks through the limitation of ceramics in 4D printing and achieves high‐performance shape morphing materials for applications under extreme conditions, such as space exploration and high‐temperature systems.

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Well ordered-microstructure bioceramics

Cited by 6 publications

References 58 publications

Matrix-Directed Mineralization for Bulk Structural Materials

Matrix-Directed Mineralization for Bulk Structural Materials

Bioinspired laminated bioceramics with high toughness for bone tissue engineering

Prestrain Programmable 4D Printing of Nanoceramic Composites with Bioinspired Microstructure

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