Article
Engineering, Multidisciplinary
Javier Andres-Esperanza, Jose L. Iserte-Vilar, Immaculada Llop-Harillo, Antonio Perez-Gonzalez
Summary: The study proposed a method using a reduced performance test and two bench tests to evaluate affordable tendon-driven devices, and evaluated five common models. The results indicated that the performance of these models did not meet expectations, calling for further improvement in design and regulations.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Biotechnology & Applied Microbiology
Sergio Aguilera Suarez, Nadia Chandra Sekar, Ngan Nguyen, Austin Lai, Peter Thurgood, Ying Zhou, Scott Needham, Elena Pirogova, Khashayar Khoshmanesh, Sara Baratchi
Summary: The study introduces a motorized cam-driven system for cyclic stretch of aortic endothelial cells, which allows for generating customized spatiotemporal stretch profiles. Experiments demonstrate significant changes in cytoskeletal structure and morphology of cells following exposure to cyclic stretch.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Lei Zhang, Junjie Xu, Xiangyu Tang, Xin Zhou, Bingkun Li, Guoyou Wang
Summary: Surgical fixation using a 3D-printed navigation template for tibiofibular syndesmosis injuries showed similar biomechanical performance to intact ligaments and TightRope technique, with better outcomes compared to the screw technique.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Atul Dhall, Ravikiran Ramjee, Min Jun Oh, Kevin Tao, Geelsu Hwang
Summary: This manuscript presents a customizable platform compatible with off-the-shelf well plates that can monitor microbial adhesion, growth, and associated parameters under various relevant scenarios by taking advantage of 3D printing. This platform liberates designing experimental strategies for investigations of biofilms under various conditions.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
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
Geosciences, Multidisciplinary
Erynn Johnson, David Peterman, Aja Carter
Summary: The fossil record is a valuable dataset for studying biodiversity, but it has been limited by various barriers. However, advances in technology now allow for the study of ancient organisms using Defossilized Organismal Proxies (DOPs). These techniques have the potential to revolutionize paleontology and other related fields by integrating ecology, evolutionary biology, and bioinspired engineering. Establishing a framework for this methodological development is important for maximizing the scientific impact of DOP-based experiments.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Biomedical
Daofeng Wang, Lin Han, Gaoxiang Xu, Wupeng Zhang, Hua Li, Cheng Xu, Huanyu Li, Jitian Li, Hao Zhang, Jiantao Li
Summary: This study designed a new method using 3D printing and CAD for bone biomechanical study and verified the accuracy of osteotomy. This method is expected to achieve homogeneity and standardization of osteotomy in bone biomechanical study.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Article
Engineering, Biomedical
Amanda Heimbrook, Cambre Kelly, Ken Gall
Summary: 3D printing is a critical method for manufacturing metallic implants with intricate geometries and porous structures. The surface porous region of bone interfacing implants has a significant impact on short-term adhesion and friction, affecting implant stability. Expulsion tests are commonly used to evaluate the performance of orthopedic implants, but their effectiveness is poorly understood. This foundational study examines the expulsion behavior of metallic samples with varied surface topography, finding that applied normal force and sample size have the strongest influence on expulsion force. Certain 3D printed surface structures are up to 10 times more expulsion resistant compared to polished samples. Additionally, nonlinear relationships were discovered between expulsion resistance and applied load, suggesting that the ranking of expulsion resistance can depend on the normal force selected. This research has important implications for the design and regulatory testing of textured orthopedic implants.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Peng Yu, Shenghua Huang, Zhuoni Yang, Tingting Liu, Zhang Qilin, Jun Feng, Bo Zeng
Summary: In this study, a thermoplastic polyurethane (TPU)/Poly-epsilon-caprolactone (PCL) blended esophageal stent was developed using melt blending and 3D printing techniques. The stent can be personalized according to the esophageal geometry of the patient. The results show that the stent has good mechanical properties, nontoxicity, and has the potential for clinical personalized treatment of esophageal strictures.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Orthopedics
Ricardo Rodriguez Colon, Vasudev Vivekanand Nayak, Paulo E. L. Parente, Philipp Leucht, Nick Tovar, Charles C. Lin, Kevin Rezzadeh, Jacques H. Hacquebord, Paulo G. Coelho, Lukasz Witek
Summary: Additive manufacturing, also known as 3D printing (3DP), has witnessed exponential growth in the past four decades, largely due to advancements in technology and increased accessibility. In the field of medicine, particularly orthopedics, 3DP has shown promising applications in areas such as patient education, surgical planning, and the development of personalized implants.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Haining Zhang, Enhang Hong, Xindong Chen, Zhixin Liu
Summary: Aerosol jet printing (AJP) is a non-contact direct ink writing technology with potential for fabricating flexible and conformal electronic devices. However, the limited electrical performance caused by poor printing quality is still a major challenge. In this study, a hybrid machine learning method is proposed to optimize the AJP process based on deposited droplet morphology, using space-filling-based experimental design, clustering, classification, regression, and multiobjective optimization. The proposed method allows a systematic investigation of the formation mechanisms of printed line characteristics and fundamentally improves the printing quality based on deposited droplet morphology.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Automation & Control Systems
Bu Ping, Jin Huang, Fanbo Meng
Summary: In this study, a part morphology prediction model for curved inkjet 3D printing is developed to predict the surface morphology of printed parts. The model utilizes a surface drop prediction model and a multilayer stacking model to predict the slip and deposition patterns of ink droplets on curved substrates and the evolution of part height and contour shape in printing.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Yi-Chao Hunag, Chun-Ming Chang, Shao-Fu Huang, Chia-Heng Hong, Chun-Li Lin
Summary: In this study, a modularized proximal interphalangeal (PIP) joint implant, which closely resembles the anatomical bone articular surface and cavity contour, was developed based on computed tomography (CT) image reconstruction. Biomechanical tests showed that the implant provided sufficient joint stability and anti-dislocation capability.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Article
Chemistry, Physical
Vahid Haseltalab, Animesh Dutta, Sheng Yang
Summary: The devastative effects of traditional fossil fuel consumption have led to the wide use of biomass as a renewable energy source. Catalysts with optimal catalytic performance are essential for biomass conversion, and recent progress in 3D printing has shown potential for improving catalytic performance. However, there is limited research on biomass-bio-oil conversion (BBC). This paper reviews typical catalysts, 3D printed catalysts, and the design and optimization of structured catalysts for BBC applications, identifying deficiencies in current work and discussing potential research directions.
JOURNAL OF CATALYSIS
(2023)
Article
Polymer Science
Supaphorn Thumsorn, Wattanachai Prasong, Takashi Kurose, Akira Ishigami, Yutaka Kobayashi, Hiroshi Ito
Summary: This study fabricated commercial poly(lactic acid) (PLA) composites using FDM 3D printing and evaluated the effects of additives and bed temperatures on layer adhesion and mechanical performance. The results showed that the additives and bed temperatures significantly influenced the print quality and properties of the PLA composites.