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Wang C, Wang J, Li Q, Xu S, Yang J. A review on recent development of foam Ceramics prepared by particle-stabilized foaming technique. Adv Colloid Interface Sci 2024; 330:103198. [PMID: 38820884 DOI: 10.1016/j.cis.2024.103198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/24/2024] [Accepted: 05/18/2024] [Indexed: 06/02/2024]
Abstract
Particle-stabilized technique for fabricating foam ceramics was developed in 2006. Porous ceramics with porosity over 95% can be prepared by this newly developed method. This foaming technique was derived from the principle of Pickering foam to a large extent. The high internal phase volume, narrow distribution of pore size as well as the structural stability of the Pickering system enable the final ceramic products to realize their functionality in a variety of applications. However, the interfacial aspect of the foaming system determines the final product in many ways, which brings this novel method details to explore and possibilities to challenge. The current review introduces the particle-stabilized method combining with colloid and surface science since particles are the building block of ceramic materials. The history of this newly invented method was mentioned at first, followed by foam ceramic products prepared by this foaming technique combining with corresponding mechanism. Some representative applications involving ceramic materials made by particle-stabilized method were discussed. At last, we conclude the overall article and put forward some outlooks and challenges about the future direction of this unique foaming technique.
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Affiliation(s)
- Chao Wang
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China.
| | - Jinyang Wang
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Qiang Li
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Shandong Xu
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Jinlong Yang
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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2
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Wei X, Xu K, Wang Y, Zhang Z, Chen Z. 3D Printing of Flexible BaTiO 3/Polydimethylsiloxane Piezocomposite with Aligned Particles for Enhanced Energy Harvesting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11740-11748. [PMID: 38394674 DOI: 10.1021/acsami.4c00587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
With the rapid development of human-machine interactions and artificial intelligence, the demand for wearable electronic devices is increasing uncontrollably all over the world; however, an unsustainable power supply for such sensors continues to restrict their applications. In the present work, piezoelectric barium titanate (BaTiO3) ceramic powder with excellent properties was prepared from milled precursors through a solid-state reaction. To fabricate a flexible device, the as-prepared BaTiO3 powder was mixed with polydimethylsiloxane (PDMS) polymer. The BaTiO3/PDMS ink with excellent rheological properties was extruded smoothly by direct ink writing technology (DIW). BaTiO3 particles were aligned due to the shear stress effect during the printing process. Subsequently, the as-printed composite was assembled into a sandwich-type device for effective energy harvesting. It was observed that the maximum output voltage and current of this device reached 68 V and 720 nA, respectively, for a BaTiO3 content of 6 vol %. Therefore, the material extrusion-based three-dimensional (3D) printing technique can be used to prepare flexible piezoelectric composites for efficient energy harvesting.
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Affiliation(s)
- Xiangxia Wei
- Institute for Future (IFF), School of Automation, Shandong Key Laboratory of Industrial Control Technology, Qingdao University, Qingdao 266071, China
| | - Kailong Xu
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yuming Wang
- Institute for Future (IFF), School of Automation, Shandong Key Laboratory of Industrial Control Technology, Qingdao University, Qingdao 266071, China
| | - Zihan Zhang
- Institute for Future (IFF), School of Automation, Shandong Key Laboratory of Industrial Control Technology, Qingdao University, Qingdao 266071, China
| | - Zhangwei Chen
- Additive Manufacturing Institute, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
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3
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Ravi K, Manoharan TJM, Wang KC, Pockaj B, Nikkhah M. Engineered 3D ex vivo models to recapitulate the complex stromal and immune interactions within the tumor microenvironment. Biomaterials 2024; 305:122428. [PMID: 38147743 PMCID: PMC11098715 DOI: 10.1016/j.biomaterials.2023.122428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/28/2023]
Abstract
Cancer thrives in a complex environment where interactions between cellular and acellular components, surrounding the tumor, play a crucial role in disease development and progression. Despite significant progress in cancer research, the mechanism driving tumor growth and therapeutic outcomes remains elusive. Two-dimensional (2D) cell culture assays and in vivo animal models are commonly used in cancer research and therapeutic testing. However, these models suffer from numerous shortcomings including lack of key features of the tumor microenvironment (TME) & cellular composition, cost, and ethical clearance. To that end, there is an increased interest in incorporating and elucidating the influence of TME on cancer progression. Advancements in 3D-engineered ex vivo models, leveraging biomaterials and microengineering technologies, have provided an unprecedented ability to reconstruct native-like bioengineered cancer models to study the heterotypic interactions of TME with a spatiotemporal organization. These bioengineered cancer models have shown excellent capabilities to bridge the gap between oversimplified 2D systems and animal models. In this review article, we primarily provide an overview of the immune and stromal cellular components of the TME and then discuss the latest state-of-the-art 3D-engineered ex vivo platforms aiming to recapitulate the complex TME features. The engineered TME model, discussed herein, are categorized into three main sections according to the cellular interactions within TME: (i) Tumor-Stromal interactions, (ii) Tumor-Immune interactions, and (iii) Complex TME interactions. Finally, we will conclude the article with a perspective on how these models can be instrumental for cancer translational studies and therapeutic testing.
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Affiliation(s)
- Kalpana Ravi
- School of Biological and Health Systems Engineering (SBHSE), Arizona State University, Tempe, AZ, 85287, USA
| | | | - Kuei-Chun Wang
- School of Biological and Health Systems Engineering (SBHSE), Arizona State University, Tempe, AZ, 85287, USA
| | | | - Mehdi Nikkhah
- School of Biological and Health Systems Engineering (SBHSE), Arizona State University, Tempe, AZ, 85287, USA; Biodesign Virginia G. Piper Center for Personalized Diagnostics, Arizona State University, Tempe, AZ, 85287, USA.
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4
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Cordonier GJ, Anderson K, Butts R, O’Hara R, Garneau R, Wimer N, Kuhlman JM, Sierros KA. Direct Writing of a Titania Foam in Microgravity for Photocatalytic Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47745-47753. [PMID: 37767972 PMCID: PMC10571002 DOI: 10.1021/acsami.3c09658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
This work explores the potential for additive manufacturing to be used to fabricate ultraviolet light-blocking or photocatalytic materials with in situ resource utilization, using a titania foam as a model system. Direct foam writing was used to deposit titania-based foam lines in microgravity using parabolic flight. The wet foam was based on titania primary particles and a titania precursor (Ti (IV) bis(ammonium lactato) dihydroxide). Lines were also printed in Earth gravity and their resulting properties were compared with regard to average cross-sectional area, height, and width. The cross-sectional height was found to be higher when printing at low speeds in microgravity compared to Earth gravity, but lower when printing at high speeds in microgravity compared to Earth gravity. It was also observed that volumetric flow rate was generally higher when writing in Earth gravity compared to microgravity. Additionally, heterogeneous photocatalytic degradation of methylene blue was studied to characterize the foams for water purification and was found to generally increase as the foam heat treatment temperature increased. Optical and scanning electron microscopies were used to observe foam morphology. X-ray diffraction spectroscopy was used to study the change in crystallinity with respect to temperature. Contact angle of water was found to increase on the surface of the foam as ultraviolet light exposure time increased. Additionally, the foam blocked more ultraviolet light over time when exposed to ultraviolet radiation. Finally, bubble coarsening measurements were taken to observe bubble radius growth over time.
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Affiliation(s)
- G. Jacob Cordonier
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Kyleigh Anderson
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Ronan Butts
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Ross O’Hara
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Renee Garneau
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Nathanael Wimer
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - John M. Kuhlman
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Konstantinos A. Sierros
- Department
of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, United States
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5
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Liu X, Liu H, Wu H, Zhou Q, Liang H, Liu G, Duan W, Gu Y, Xu C, Travitzky N, Colombo P, Riedel R. Structural Electromagnetic Absorber Based on MoS 2 /PyC-Al 2 O 3 Ceramic Metamaterials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300664. [PMID: 37086106 DOI: 10.1002/smll.202300664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Limited by the types of suitable absorbents as well as the challenges in engineering the nanostructures (e.g., defects, dipoles, and hetero-interface) using state-of-the-art additive manufacturing (AM) techniques, the electromagnetic (EM) wave absorption performance of the current ceramic-based materials is still not satisfying. Moreover, because of the high residual porosity and the possible formation of cracks during sintering or pyrolysis, AM-formed ceramic components may in many cases exhibit low mechanical strength. In this work, semiconductive MoS2 and conductive PyC modified Al2 O3 (MoS2 /PyC-Al2 O3 ) ceramic-based structural EM metamaterials are developed by innovatively harnessing AM, precursor infiltration and pyrolysis (PIP), and hydrothermal methods. Three different meta-structures are successfully created, and the ceramic-based nanocomposite benefit from its optimization of EM parameters. Ultra-broad effective absorption bandwidth (EAB) of 35 GHz is achieved by establishment of multi-loss mechanism via nanostructure engineering and fabrication of meta-structures via AM. Due to the strengthening by the PyC phase, the bending strength of the resulting ceramics can reach ≈327 MPa, which is the highest value measured on 3D-printed ceramics of this type that has been reported so far. For the first time, the positive effect deriving from the engineering of the microscopic nano/microstructure and of the macroscopic meta-structure of the absorber on the permittivity and EM absorption performance is proposed. Integration of outstanding mechanical strength and ultra-broad EAB is innovatively realized through a multi-scale design route. This work provides new insights for the design of advanced ceramic-based metamaterials with outstanding performance under extreme environment.
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Affiliation(s)
- Xingmin Liu
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China
- Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287, Darmstadt, Germany
| | - Heqiang Liu
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Hongjing Wu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Qian Zhou
- School of Science, Xi'an University of Posts and Telecommunications, Xi'an, 710121, China
| | - Hongsheng Liang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Guoqiang Liu
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wenyan Duan
- Key Laboratory of Space Manufacturing Technology (SMT), Technology and Engineering Centre of Space Utilization, Chinese Academy of Sciences, Beijing, 100094, P R China
| | - Yue Gu
- Key Laboratory of Space Manufacturing Technology (SMT), Technology and Engineering Centre of Space Utilization, Chinese Academy of Sciences, Beijing, 100094, P R China
| | - Chengying Xu
- Department of Mechanical and Aerospace Engineering, NC State University, Raleigh, NC, 27607, USA
| | - Nahum Travitzky
- Department of Materials Science, Glass and Ceramics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Paolo Colombo
- Department of Industrial Engineering, University of Padova, Padova, 35131, Italy
| | - Ralf Riedel
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China
- Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287, Darmstadt, Germany
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6
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Zhang L, Yu Y. Improving the Stability of Water-in-Oil Emulsions with Medium Internal Phase by the Introduction of Gelatin. Foods 2023; 12:2863. [PMID: 37569131 PMCID: PMC10417489 DOI: 10.3390/foods12152863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/17/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
The water-in-oil (W/O) emulsion with a medium aqueous phase may be limited in food and cosmetics due to its poor stability and high cost. Herein, this work proposed a facile strategy to improve the W/O emulsion stability by introducing gelatin. The influence of different gelatin concentrations (0, 0.5%, 1.0%, 2.0%, and 4.0%) on the stability and properties of W/O emulsions was mainly investigated. Results showed that the obtained emulsions still belonged to W/O emulsions after adding gelatin to the aqueous phase. As the gelatin concentration increased (0~4.0%), the interfacial tension decreased, which is conducive to promoting the interface adsorption of polyglycerol polyricinoleate (PGPR). Furthermore, introducing gelatin also improved the water-holding capacity (WHC) (33.50~6.32%) and viscosity of W/O emulsions and reduced the droplet size (37.47~8.75 μm) of emulsions. The enhanced interfacial adsorption and aqueous gelation induced by gelatin addition promoted the formation of a tight overall emulsion network structure by the interaction between the interfacial adsorbed PGPR, as well as PGPR and gelatin in the aqueous phase. The enhancement of the overall network effectively improved the storage stability (35 d), thermal stability (20 min, 80 °C), and freeze-thaw stability (10 cycles) of emulsions, especially at 4.0% gelatin concentration. Hence, this study can provide guidance for the improvement and regulation of the stabilities of W/O emulsions.
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Affiliation(s)
- Lei Zhang
- Chongqing Science and Technology Bureau, Chongqing 400715, China;
| | - Yong Yu
- Chongqing Science and Technology Bureau, Chongqing 400715, China;
- College of Food Science, Southwest University, Chongqing 400715, China
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7
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Zhang C, Liao E, Li C, Zhang Y, Chen Y, Lu A, Liu Y, Geng C. 3D Printed Silicones with Shape Morphing and Low-Temperature Ultraelasticity. ACS APPLIED MATERIALS & INTERFACES 2023; 15:4549-4558. [PMID: 36642888 DOI: 10.1021/acsami.2c20392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
3D printed silicones have demonstrated great potential in diverse areas by combining the advantageous physiochemical properties of silicones with the unparalleled design freedom of additive manufacturing. However, their low-temperature performance, which is of particular importance for polar and space applications, has not been addressed. Herein, a 3D printed silicone foam with unprecedented low-temperature elasticity is presented, which is featured with extraordinary fatigue resistance, excellent shape recovery, and energy-absorbing capability down to a low temperature of -60 °C after extreme compression (an intensive load of over 66000 times its own weight). The foam is achieved by direct writing of a phenyl silicone-based pseudoplastic ink embedded with sodium chloride as sacrificial template. During the water immersion process to create pores in the printed filaments, a unique osmotic pressure-driven shape morphing strategy is also reported, which offers an attractive alternative to traditional 4D printed hydrogels in virtue of the favorable mechanical robustness of the silicone material. The underlying mechanisms for shape morphing and low-temperature elasticity are discussed in detail.
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Affiliation(s)
- Chenyang Zhang
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Enze Liao
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Changlin Li
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Yaling Zhang
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | | | - Ai Lu
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | | | - Chengzhen Geng
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
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8
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Flores-Jiménez MS, Garcia-Gonzalez A, Fuentes-Aguilar RQ. Review on Porous Scaffolds Generation Process: A Tissue Engineering Approach. ACS APPLIED BIO MATERIALS 2023; 6:1-23. [PMID: 36599046 DOI: 10.1021/acsabm.2c00740] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Porous scaffolds have been widely explored for tissue regeneration and engineering in vitro three-dimensional models. In this review, a comprehensive literature analysis is conducted to identify the steps involved in their generation. The advantages and disadvantages of the available techniques are discussed, highlighting the importance of considering pore geometrical parameters such as curvature and size, and summarizing the requirements to generate the porous scaffold according to the desired application. This paper considers the available design tools, mathematical models, materials, fabrication techniques, cell seeding methodologies, assessment methods, and the status of pore scaffolds in clinical applications. This review compiles the relevant research in the field in the past years. The trends, challenges, and future research directions are discussed in the search for the generation of a porous scaffold with improved mechanical and biological properties that can be reproducible, viable for long-term studies, and closer to being used in the clinical field.
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Affiliation(s)
- Mariana S Flores-Jiménez
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey Campus Guadalajara, Av. Gral. Ramon Corona No 2514, Colonia Nuevo México, 45121Zapopan, Jalisco, México
| | - Alejandro Garcia-Gonzalez
- Escuela de Medicina, Tecnologico de Monterrey Campus Guadalajara, Av. Gral. Ramon Corona No 2514, Colonia Nuevo México, 45121Zapopan, Jalisco, México
| | - Rita Q Fuentes-Aguilar
- Institute of Advanced Materials and Sustainable Manufacturing, Tecnologico de Monterrey Campus Guadalajara, Av. Gral. Ramon Corona No 2514, Colonia Nuevo México, 45121Zapopan, Jalisco, México
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9
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Li T, Liu Q, Qi H, Zhai W. Prestrain Programmable 4D Printing of Nanoceramic Composites with Bioinspired Microstructure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204032. [PMID: 36180413 DOI: 10.1002/smll.202204032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/11/2022] [Indexed: 06/16/2023]
Abstract
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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Affiliation(s)
- Tian Li
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Quyang Liu
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Haobo Qi
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore
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