Article
Materials Science, Multidisciplinary
Xiaoyang Zheng, Xiaofeng Guo, Ikumu Watanabe
Summary: This study introduces a new 3D auxetic metamaterial generated from an implicit expression, fabricated using 3D printing, and enhanced with a nickel layer for improved performance. Evaluation of the metamaterial's performance through compression tests and finite element analyses, along with contour maps for guidance in functional applications, were presented. Integration of 3D printing and electroless plating allowed accurate control over the mechanical and conduction properties of the material.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Applied
Mehdi Salar Amoli, Resmi Anand, Mostafa EzEldeen, Paulo Alexandre Amorim, Liesbet Geris, Reinhilde Jacobs, Veerle Bloemen
Summary: This study aimed to develop a 3D printable and tuneable biomaterial by copolymerizing a synthesized water-soluble chitosan derivative with gelatin, using a natural crosslinking agent. The results showed that this material had excellent biocompatibility and controlled physical properties, indicating its potential for dentoalveolar tissue engineering.
CARBOHYDRATE POLYMERS
(2022)
Article
Engineering, Chemical
Ethan Chadwick, Ann H. Barrett, William Hobson-Rhoades, Michael Okamoto, Yara Suleiman, Lauren E. Oleksyk, Hongyi Xu, Sina Shahbazmohamadi, Abhishek Shetty, Richard Baker, Anson W. K. Ma
Summary: This paper reports the 3D printing of confectionaries using the binder jetting method, achieving significant tunability in compressive strength and elastic modulus by adjusting the glycerol concentration of the binder. A soft core and hard shell design was also printed and modeled. The discrepancies between experimental and simulation results may be attributed to glycerol leaching and capillary actions.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Polymer Science
Xiaoliang Zhao, Hua Jiao, Bin Du, Kang Zhao
Summary: This paper prepared polyurethane acrylate oligomer (PUA) microspheres using the Pickering emulsion template method and UV curing technology, and added them to a photosensitive resin system for 3D printing. The addition of PUA microspheres improved the mechanical properties and thermal stability of the photosensitive resin. When the microsphere content was 0.5%, the tensile strength, elongation at break, bending strength, and initial thermal decomposition temperature were significantly increased. The study provides a new way to enhance the mechanical properties of photosensitive resin 3D printing, with potential applications in ceramic 3D printing and dental temporary replacement materials.
Article
Engineering, Manufacturing
Mohammad Sadeq Saleh, Chunshan Hu, Jacob Brenneman, Al Muntasar Al Mutairi, Rahul Panat
Summary: This study used Aerosol Jet 3D nanoparticle printing to fabricate three-dimensional metallic microlattice materials and demonstrated that the mechanical response of these microlattices can be tuned by adjusting the structure density and cell architecture. Finite Element Analysis and a theoretical model were employed to show the periodic hardening and softening behavior of the microlattice structures in the stress-strain plots' plateau region. These results establish the potential of AJ printing for fabricating a novel class of microlattice structures with tunable and controlled mechanical response.
ADDITIVE MANUFACTURING
(2021)
Article
Construction & Building Technology
Yuhang Shen, Li Lin, Shengjie Wei, Jie Yan, Tianli Xu
Summary: This study compares different equipment and materials used for 3D printing concrete, studies the mix ratio and performance of 3D printed concrete, and determines the optimal mix ratio for fiber reinforced concrete. Experimental and simulated analyses reveal the factors influencing the bonding performance of different 3D printed concrete layers.
Article
Engineering, Aerospace
Meng-Fu Guo, Hang Yang, Yi-Min Zhou, Li Ma
Summary: A three-dimensional hybrid double arrow-head (3D HDA) structure is proposed in this study, with tunable Young's modulus and Poisson's ratio through adjusting the complementary action of conventional and auxetic components. Geometric parameters have been found to influence the crushing behaviors and energy absorption performances of 3D HDA structure under different crushing conditions.
AEROSPACE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Huynh Quoc Nguyen, Tae Seok Seo
Summary: In this study, a droplet device with controllable droplet size and generation frequency was rapidly prototyped using 3D printing technology. The device utilized a screw-and-nut combination for easy and precise control of the gap height between the dispersed phase outlet and the orifice. The 3D printed device was successfully employed for synthesizing A549 cell-encapsulated microspheres of various sizes, which can be used for drug screening.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Applied
Jamileh Shojaeiarani, Alimohammad Shirzadifar, Dilpreet S. Bajwa
Summary: A porous multi-layered nanocomposite hydrogel featuring selective adsorption of organic dyes has been developed via 3D printing. The surface charge of the hydrogel has a predominant effect on the porous structure, with layers of opposite charges showing different pore characteristics.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Polymer Science
Jose Contreras Raggio, Carlos Toro Arancibia, Carola Millan, Heidi-Lynn Ploeg, Ameet Aiyangar, Juan F. Vivanco
Summary: The mechanical behavior of 3D-printed polymer-based scaffolds was studied by systematically varying the parameters of porosity, height-to-diameter ratio, and pore size. The results showed that porosity and height-to-diameter ratio had significant influences on the mechanical properties, while pore size had a minor effect. This study is important for optimizing the development of bone scaffolds from a biomechanical perspective.
Article
Biochemistry & Molecular Biology
Ewa Olewnik-Kruszkowska, Magdalena Gierszewska, Sylwia Grabska-Zielinska, Joanna Skopinska-Wisniewska, Ewelina Jakubowska
Summary: This study aimed to obtain a series of new crosslinked chitosan-based films using the solvent casting method, with squaric acid as a safe crosslinking agent. The addition of squaric acid significantly improved the structural, mechanical, thermal, and swelling properties of the formed films, establishing squaric acid as an effective crosslinking agent for chitosan-based materials.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Nanoscience & Nanotechnology
He Li, Kehui Hu, Yongsheng Liu, Zhigang Lu, Jingjing Liang
Summary: This study fabricated silica ceramic cores with improved mechanical properties using stereolithography based-3D printing. By controlling the printing direction and sintering temperature, the flexural strength was optimized, emphasizing the importance of controlling 3D printing parameters and sintering process.
SCRIPTA MATERIALIA
(2021)
Article
Polymer Science
Daniel P. da Silva, Joao Pinheiro, Saba Abdulghani, Christina Kamma Lorger, Juan Carlos Martinez, Eduardo Solano, Artur Mateus, Paula Pascoal-Faria, Geoffrey R. Mitchell
Summary: Direct digital manufacturing enables the fabrication of products directly from their digital definition, eliminating the need for complex tooling or molds. While this approach simplifies prototyping and production, current developments often overlook the properties of the product. This study focuses on controlling the morphology of a semi-crystalline polymer during 3D printing to realize patterns of properties, such as modulus. The production of products with spatial variation in properties is demonstrated.
Article
Chemistry, Multidisciplinary
Shuwang Wu, Mutian Hua, Yousif Alsaid, Yingjie Du, Yanfei Ma, Yusen Zhao, Chiao-Yueh Lo, Canran Wang, Dong Wu, Bowen Yao, Joseph Strzalka, Hua Zhou, Xinyuan Zhu, Ximin He
Summary: This study presents a strategy to broadly and reversibly alter the mechanical properties of hydrogels by tuning the aggregation states of polymer chains based on the Hofmeister effect. An ultra-tough PVA hydrogel with exceptional mechanical properties is fabricated, showcasing continuous and reversible modulation of various mechanical properties over a large window. This strategy enables high mechanical performance and broad dynamic tunability, serving as a universal platform for applications ranging from biomedicine to wearable electronics.
ADVANCED MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Ashish Ghimire, Ya-Yun Tsai, Po-Yu Chen, Shu-Wei Chang
Summary: This study demonstrates the evolution and tunability of deformation behavior in staggered composites through design optimization, 3D-printing, and simulation. It identifies two fracture mechanisms, columnar and non-columnar fractures, which explain the observed hardening and toughening in interlocking and non-interlocking tablet topologies. Computation analyses at various fracture stages provide insights into the change in stress concentrations, deepening the understanding of fracture mechanisms.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Lin Huang, Xiaqing Yang, Linglong Deng, Daofa Ying, Ang Lu, Lina Zhang, Aixi Yu, Bo Duan
Summary: The nerve guidance conduit (NGC) made of a hydrogel film composed of chitin and conductive PEDOT nanoparticles was found to significantly promote Schwann cell adhesion and proliferation, leading to enhanced nerve regeneration. The composite material also showed similarities in muscle function and axon thickness compared to autografts in rat sciatic nerve defects, indicating its potential in accelerating peripheral nerve restoration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Rongrong Zhang, Linglong Deng, Jinhua Guo, Hongye Yang, Lina Zhang, Xiaodong Cao, Aixi Yu, Bo Duan
Summary: This study proposes a new solvent consumption strategy to disrupt the thermodynamic stability of biopolymer solutions and induce self-assembly of molecule chains into nanostructures for improved printability. The resulting polysaccharide scaffolds exhibit superior performance in tissue engineering applications, showing potential for diverse applications beyond tissue engineering.
Article
Biochemistry & Molecular Biology
Jinhua Guo, Qingtao Li, Rongrong Zhang, Bing Li, Jie Zhang, Longtao Yao, Zefeng Lin, Lina Zhang, Xiaodong Cao, Bo Duan
Summary: This study proposes a gentle pre-cross-linking strategy to enable cellulose hydrogels with favorable printability and strong network, achieved by mediating cellulose self-assembly. The printed hydrogels exhibit superior mechanical properties, design flexibility, and potential applications in tissue engineering.
Article
Chemistry, Multidisciplinary
Xinghuan Lin, Lina Zhang, Bo Duan
Summary: A polyphenol-mediated self-assembly strategy was developed to enhance the strength and toughness of chitin hydrogels. These hydrogels showed high modulus and strength, while sacrificing bonds dissipated energy and led to high toughness. The hydrogels exhibited considerable antibacterial properties and excellent biocompatibility.
MATERIALS HORIZONS
(2021)
Article
Chemistry, Physical
Hu Tu, Kang Xie, Xinghuan Lin, Ruquan Zhang, Feng Chen, Qiang Fu, Bo Duan, Lina Zhang
Summary: By combining chemically-physically double cross-linking and stretching orientation strategies, a highly ordered cellulose nanofiber network and edge-hydroxylated boron nitride nanosheets (BNNS-OH) structure were constructed to fabricate a cellulose/BNNS-OH composite film with superior thermal conductivity. The composite film exhibited anisotropic thermal conductivity properties and excellent heat dissipation capabilities for cooling communication devices, while also showing potential for communication devices encapsulation and providing a new avenue for preparing highly oriented composite materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)