Article
Construction & Building Technology
Frank K. A. Awuah, Alvaro Garcia-Hernandez
Summary: This paper demonstrates a machine process for repairing cracks in asphalt pavements using hot bitumen filling for the first time. The researchers characterized the quality of the fillings and examined how various factors affect the filling quality. The study showed that bitumen flow, filling speed, and crack dimensions determine the quality of the filling and will require careful control in future autonomous crack filling devices.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Engineering, Manufacturing
Jinxing Sun, Shixiang Yu, Wade-Zhu James, Yue Wang, Hongqiao Qu, Shuai Zhao, Rui Zhang, Jinglei Yang, Jon Binner, Jiaming Bai
Summary: Geometrically complex ceramic composite components with exceptional damage tolerance can be fabricated using additive manufacturing and novel biomimetic toughening design.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Hyeon Beom Kim, Soo Wan Kim, Jeong Beom Ko, Young Jin Yang, Geum Yoon Oh, Young Woo Kim, Hyung Chan Kim
Summary: This study investigates sugar behavior during extrusion process to address limitations in 3D printed candy manufacturing. Optimal parameters for nozzle movement speed, extrusion speed, and pattern spacing were derived for reproducible 3D models. The research demonstrates the feasibility of producing personalized custom shapes with high reproducibility in the future.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Food Science & Technology
Stephane Portanguen, Pascal Tournayre, Paul Gibert, Selma Leonardi, Thierry Astruc, Pierre-Sylvain Mirade
Summary: The use of additive manufacturing is expanding to various fields, including food industry. The implementation of 3D printing process for meat protein matrices is currently one of the challenges. This article provides an overview of different 3D printers used to study the printability properties of foods, and introduces the development of a specialized 3D printer for printing food protein gels. The development of printhead and printing plate modifications, as well as the evaluation of the second prototype, are discussed.
Article
Polymer Science
Aniol Bosch, Enric Casanova-Batlle, Iuliana Constantin, Carles Rubio, Joaquim Ciurana, Antonio J. Guerra
Summary: In this study, an innovative manufacturing method for polymeric stent production using tubular stereolithography (SLA) technology is proposed for both bioresorbable stents (BRS) and ultrathin polymeric drug-eluting stents (DES). The effects of manufacturing process parameters were studied, and promising results were obtained, overcoming the limitations of previous technologies.
Article
Automation & Control Systems
Fareed Tamaddoni Jahromi, Mostafa Nikzad, Mats Isaksson, Johan Noren
Summary: This study proposes a novel method to repair complex automotive components, specifically headlights, using fused filament-based additive manufacturing combined with hot staking. Newly formulated polypropylene-based composite filaments were 3D printed to repair damaged headlights, with the best performance observed in the dome-shaped staking design. After optimizing the printing parameters, the dome-shaped stakes achieved the highest mechanical performance with a bond strength of 7.27 MPa.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Polymer Science
Tobias Ritter, Eric McNiffe, Tom Higgins, Omid Sam-Daliri, Tomas Flanagan, Michael Walls, Pouyan Ghabezi, William Finnegan, Sinead Mitchell, Noel M. Harrison
Summary: In this research, a fully-functioning material extrusion additive manufacturing device was designed and developed to produce functionally graded high-temperature thermoplastic PEEK materials by controlling the microstructure during manufacturing. Different strategies to control chamber temperature and crystallinity were investigated, and thermal control concepts were introduced to govern the crystallisation and cooling mechanics. The interaction of deposited material beads during printing process was studied using scanning electron microscopy to observe and quantify the porosity levels and interlayer bonding strength.
Article
Biochemistry & Molecular Biology
Rand Alkaissy, Michael Richard, Hayley Morris, Sarah Snelling, Henry Pinchbeck, Andrew Carr, Pierre-Alexis Mouthuy
Summary: Rotator cuff tendon tears are common injuries that often require surgical repair. A combination of electrospinning and 3D printing can be used to create biphasic scaffolds that mimic the interface and improve the outcomes of rotator cuff repair.
MACROMOLECULAR BIOSCIENCE
(2022)
Review
Pharmacology & Pharmacy
Merima Sirbubalo, Amina Tucak, Kenan Muhamedagic, Lamija Hindija, Ognjenka Rahic, Jasmina Hadziabdic, Ahmet Cekic, Derzija Begic-Hajdarevic, Maida Cohodar Husic, Almir Dervisevic, Edina Vranic
Summary: Microneedles are micropuncture devices that penetrate the skin painlessly and facilitate transdermal drug delivery. Traditional manufacturing methods for MNs are time-consuming and expensive, while 3D printing technology offers a revolutionary way to produce personalized dosage forms and patient-specific medical devices.
Article
Materials Science, Multidisciplinary
Hilkiah Ako, Joseph 'Mahony, Helen Hughes, Peter Mcloughlin, Niall J. O. 'Reilly
Summary: This paper reports the first use of Aerosol Jet Printing (AJP) as an additive manufacturing technique for the fabrication of dissolving microneedle arrays. By studying critical process parameters, high-quality microneedles were successfully fabricated and demonstrated the ability to penetrate porcine skin samples. This breakthrough is of significant importance in the field of biopharmaceutical delivery.
APPLIED MATERIALS TODAY
(2023)
Article
Polymer Science
Jose Maria Rosales, Cristina Cejudo, Lidia Verano, Lourdes Casas, Casimiro Mantell, Enrique Jose Martinez de la Ossa
Summary: The study found that PLA filaments impregnated with ethanolic mango leaves extract showed good antioxidant and antidenaturant capacities, making them suitable as feed for a three-dimensional printer. Additionally, printed PLA filaments maintained certain bioactive properties even after printing.
Article
Green & Sustainable Science & Technology
Shaowei Zhang, Duanyi Wang, Feng Guo, Yihao Deng, Fuming Feng, Qiyang Wu, Zhaojie Chen, Yanbiao Li
Summary: The study evaluates the benefits of using compound WMA technologies in SBS modified bitumen, finding that a limited chemical reaction occurs between the novel foaming agent and SBS bitumen, which improves foaming behavior and enhances construction performance and resistance.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Manufacturing
Qifeng Qian, Jan Henk Kamps, Brian Price, Hao Gu, Ricky Wildman, Richard Hague, Belen Begines, Christopher Tuck
Summary: In this study, a 3D reactive inkjet printing method was developed to successfully fabricate bisphenol A-polycarbonate material, demonstrating the capability to broaden the range of AM materials to include engineering grade polymers.
ADDITIVE MANUFACTURING
(2022)
Article
Pharmacology & Pharmacy
Mattia Tiboni, Giulia Curzi, Annalisa Aluigi, Luca Casettari
Summary: Vertical diffusion cells are commonly used for studying the release and permeation of active ingredients in pharmaceutical and cosmetic fields. Using fused deposition modeling 3D printing with polypropylene, a robust and chemically inert polymer, a more cost-effective and durable alternative to glass-based systems can be produced. The 3D printed cells show chemical resistance, no interaction with model molecules, and can be thermostated without the need for a water recirculating system, making them a promising choice for drug permeation studies.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Qiaosong Cai, Sylvain Meille, Shitong Zhou, Florian Bouville, Iuliia Tirichenko, Eduardo Saiz
Summary: In this work, thermally reversible pastes are used to fabricate ceramic matrix (Al2O3) composites reinforced with continuous metallic fibers (steel). The approach involves micro-extrusion of ceramic-metal filaments to create dense and lightweight cellular structures, combining the stiffness and strength of ceramics with the fracture resistance and energy absorption capabilities of metals. The structures fabricated with these filaments exhibit higher compressive strengths and energy absorption capabilities compared to pure ceramics, offering new opportunities in additive manufacturing of multi-material parts and devices.
MATERIALS & DESIGN
(2023)
Article
Multidisciplinary Sciences
S. E. Wilkes, M. A. Miodownik
INTERDISCIPLINARY SCIENCE REVIEWS
(2018)
Article
Polymer Science
Muftau J. Akanbi, Suwan N. Jayasinghe, Adam Wojcik
Summary: The electrospun polystyrene (PS) fibre mat has great potential as an oil sorbent due to its high sorption capacity and oil-water selectivity. However, poor mechanical properties have limited its use in such applications. By blending polystyrene (PS) and thermoplastic polyurethane (PU) fibres in different ratios, a balance between sorption capacity and mechanical behavior can be achieved.
Article
Engineering, Biomedical
B. Oldfrey, A. Tchorzewska, R. Jackson, M. Croysdale, R. Loureiro, C. Holloway, M. Miodownik
Summary: Improvements in elastomeric liner technology are needed to address issues in prosthetic limbs, such as better conforming to the residual limb and improving skin health. Embedding various devices into a smart liner can make replacement and repair easier, without the need for costly custom-made sockets.
MEDICAL ENGINEERING & PHYSICS
(2021)
Article
Multidisciplinary Sciences
Tony Freeth, David Higgon, Aris Dacanalis, Lindsay MacDonald, Myrto Georgakopoulou, Adam Wojcik
Summary: The Antikythera Mechanism, an ancient Greek astronomical calculator, has puzzled researchers since its discovery in 1901. Recent studies using X-ray CT decoded the structure and inscriptions of the machine, revealing complex planetary periods and leading to a new model that better explains the evidence.
SCIENTIFIC REPORTS
(2021)
Article
Green & Sustainable Science & Technology
Ayse Lisa Allison, Fabiana Lorencatto, Susan Michie, Mark Miodownik
Summary: The study analyzed reasons for purchasing BCPP and identified key barriers and enablers related to understanding, beliefs, and environmental opportunities.
Article
Green & Sustainable Science & Technology
Ben Oldfrey, Giulia Barbareschi, Priya Morjaria, Tamara Giltsoff, Jessica Massie, Mark Miodownik, Catherine Holloway
Summary: Based on studies conducted through the FCDO AT2030 Programme, it is suggested that Assistive Technology (AT) provision models should focus on more sustainable approaches to benefit the environment and address current problems. The importance of localized circular production models in facilitating context-driven solutions and essential service elements like repair and maintenance is highlighted. Further exploration is needed to understand the correct next steps in aligning AT provision with sustainability interventions.
Review
Materials Science, Multidisciplinary
Adam Wojcik, Matthew Waitt, Alberto Santos, Ahmed Shibli
Summary: The authors previously developed a method using AC and DC electrical potential drop (EPD) on-line monitoring to determine the remaining lifetime of pressure vessels suffering creep. The method detected both final cracking and incipient creep damage, which was initially attributed to cavitation damage. However, recent modelling and separate off-line measurements have shown that cavitation cannot explain all observed variations. This paper gathers the results obtained to date and reviews their likely relationships to gain a better understanding of the mechanisms at play. It is now believed that the changes seen in EPD cannot be fully explained by cavitation development and that EPD is responding to other creep-induced phenomena as well.
MATERIALS AT HIGH TEMPERATURES
(2023)
Review
Multidisciplinary Sciences
Fabiola Sciscione, Helen C. Hailes, Mark Miodownik
Summary: Pro-oxidant additive containing (PAC) plastics are designed to degrade in the natural environment through oxidation and other processes. The new standard PAS 9017 : 2020 is relevant for predicting the degradation timescale of PAC plastics in hot dry climates, but not in cool or wet climatic regions. Biodegradability values of PAC plastics in studies range from 5-60% and may not meet the criteria set in PAS 9017 : 2020. Further research is needed to assess the potential environmental and biological effects of PAC additives and microplastics.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Environmental Sciences
Ayse Lisa Allison, Fabiana Lorencatto, Susan Michie, Mark Miodownik
Summary: This study aims to identify factors influencing UK citizens' household food waste recycling in order to design strategies to increase collection rates. The study found that automatic motivation and psychological capability predict household food waste recycling, while physical opportunity was identified as the main barrier. Participants also reported automatic motivation-related barriers. The study recommends clear and consistent communication strategies, improving functional design, and providing bins and compostable caddy liners based on user-centered needs.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Materials Science, Multidisciplinary
Richard J. Jackson, P. Stephen Patrick, Mark Miodownik
MATERIALS LETTERS-X
(2020)
Article
Robotics
Ben Oldfrey, Richard Jackson, Peter Smitham, Mark Miodownik
FRONTIERS IN ROBOTICS AND AI
(2019)
Article
Materials Science, Multidisciplinary
Anna R. Ploszajski, Richard Jackson, Mark Ransley, Mark Miodownik
Article
Chemistry, Multidisciplinary
Richard J. Jackson, P. Stephen Patrick, Kristopher Page, Michael J. Powell, Mark F. Lythgoe, Mark A. Miodownik, Ivan P. Parkin, Claire J. Carmalt, Tammy L. Kalber, Joseph C. Bear