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Olawumi MA, Oladapo BI, Olugbade TO, Omigbodun FT, Olawade DB. AI-Driven Data Analysis of Quantifying Environmental Impact and Efficiency of Shape Memory Polymers. Biomimetics (Basel) 2024; 9:490. [PMID: 39194469 DOI: 10.3390/biomimetics9080490] [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: 06/20/2024] [Revised: 08/01/2024] [Accepted: 08/07/2024] [Indexed: 08/29/2024] Open
Abstract
This research investigates the environmental sustainability and biomedical applications of shape memory polymers (SMPs), focusing on their integration into 4D printing technologies. The objectives include comparing the carbon footprint, embodied energy, and water consumption of SMPs with traditional materials such as metals and conventional polymers and evaluating their potential in medical implants, drug delivery systems, and tissue engineering. The methodology involves a comprehensive literature review and AI-driven data analysis to provide robust, scalable insights into the environmental and functional performance of SMPs. Thermomechanical modeling, phase transformation kinetics, and heat transfer analyses are employed to understand the behavior of SMPs under various conditions. Significant findings reveal that SMPs exhibit considerably lower environmental impacts than traditional materials, reducing greenhouse gas emissions by approximately 40%, water consumption by 30%, and embodied energy by 25%. These polymers also demonstrate superior functionality and adaptability in biomedical applications due to their ability to change shape in response to external stimuli. The study concludes that SMPs are promising sustainable alternatives for biomedical applications, offering enhanced patient outcomes and reduced environmental footprints. Integrating SMPs into 4D printing technologies is poised to revolutionize healthcare manufacturing processes and product life cycles, promoting sustainable and efficient medical practices.
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Affiliation(s)
- Mattew A Olawumi
- Computing, Engineering and Media, De Montfort University, Leicester LE1 9BH, UK
| | - Bankole I Oladapo
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK
| | | | - Francis T Omigbodun
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, UK
| | - David B Olawade
- Department of Allied and Public Health, School of Health, Sport and Bioscience, University of East London, London E16 2RD, UK
- Department of Research and Innovation, Medway NHS Foundation Trust, Gillingham ME7 5NY, UK
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2
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Yang SH, Chen CY, Liu WL, Liu HW, Chao KY. Development of a Cost-Effective 3D-Printed Airway Suction Simulator for Respiratory Therapy Students. Respir Care 2024; 69:549-556. [PMID: 38167213 PMCID: PMC11147610 DOI: 10.4187/respcare.11277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
BACKGROUND Three-dimensional (3D)-printed models are cost-effective and can be customized by trainers. This study designed a 3D-printed airway suction simulator for use by respiratory therapy (RT) students. The objective was to demonstrate the cost-effectiveness and application of 3D-printed models in respiratory care training, aiming to enhance the educational experience for RT students. METHODS This study developed a 3D-printed airway suction simulator that was cost-effective. A randomized controlled trial was conducted involving RT students to compare effectiveness in a 3D-model group and a control group. Skill assessments and written examinations were used to evaluate the participants' knowledge and skills. RESULTS A total of 38 second-year RT students were randomly assigned to either the 3D-model group (n = 19) or the control group (n = 19). One participant in the 3D-model group was lost to follow-up during the planned direct observation of procedural skills (DOPS) assessment and satisfaction questionnaire completion. The posttest written examination scores were significantly higher in the 3D-model group than in the control group (100% vs 80%, P = .02). The scores from the DOPS and satisfaction questionnaire were comparable in the 2 groups. CONCLUSIONS This study demonstrated that 3D printing can be used to create a safe and cost-effective airway suction simulator for use by RT students, with potential to enhance training methods. Further research is necessary.
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Affiliation(s)
- Shih-Hsing Yang
- Department of Respiratory Therapy, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan; and Department of Respiratory Therapy, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chao-Yu Chen
- Department of Respiratory Therapy, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan; and Department of Life Science, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Wei-Lun Liu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan; Department of Critical Care Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan; and Data Science Center, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Hsia-Wei Liu
- Department of Life Science, Fu Jen Catholic University, New Taipei City, Taiwan; and Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Ke-Yun Chao
- Department of Respiratory Therapy, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan; School of Physical Therapy, Graduate Institute of Rehabilitation Sciences, Chang Gung University, Taoyuan, Taiwan; and Artificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City, Taiwan.
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3
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Olawumi MA, Oladapo BI, Ikumapayi OM, Akinyoola JO. Waste to wonder to explore possibilities with recycled materials in 3D printing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167109. [PMID: 37717760 DOI: 10.1016/j.scitotenv.2023.167109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/14/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
In a world grappling with environmental challenges and the need for sustainable manufacturing practices, the convergence of 3D printing and recycling emerges as a promising solution. This research paper explores the potential of combining these two technologies and comprehensively analyses their synergistic effects. The study delves into the printability of recycled materials, evaluating their suitability for 3D printing and comparing their performance with conventional materials. The environmental impact of 3D printing with recycled materials is examined through a sustainability analysis and a life cycle assessment of recycled 3D printed objects. The findings reveal significant benefits, including enhanced resource efficiency, waste reduction, and customisation possibilities. The research also identifies challenges and opportunities for scaling up the use of recycled materials in 3D printing, highlighting the importance of collaboration, innovation, and regulations. With potential applications spanning various industries, from prototyping to construction and healthcare, the implications of this research are far-reaching. By embracing sustainable practices, industry collaboration, and innovation, the integration of 3D printing and recycling can pave the way for a more sustainable future, where resource conservation, circularity, and customised production are at the forefront of manufacturing.
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Affiliation(s)
- Mattew A Olawumi
- School of Engineering and Sustainable Development, De Montfort University, Leicester, United Kingdom
| | - Bankole I Oladapo
- School of Engineering and Sustainable Development, De Montfort University, Leicester, United Kingdom; School of Science and Engineering, University of Dundee, United Kingdom.
| | - Omolayo M Ikumapayi
- Mechanical Mechatronics Engineering, Afe Babalola University, Ado-Ekiti, Nigeria
| | - John O Akinyoola
- Mechanical Mechatronics Engineering, Afe Babalola University, Ado-Ekiti, Nigeria
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4
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Liu C, Staples R, Gómez-Cerezo MN, Ivanovski S, Han P. Emerging Technologies of Three-Dimensional Printing and Mobile Health in COVID-19 Immunity and Regenerative Dentistry. Tissue Eng Part C Methods 2023; 29:163-182. [PMID: 36200626 DOI: 10.1089/ten.tec.2022.0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The ongoing coronavirus disease 2019 (COVID-19) pandemic highlights the importance of developing point-of-care (POC) antibody tests for monitoring the COVID-19 immune response upon viral infection or following vaccination, which requires three key aspects to achieve optimal monitoring, including three-dimensional (3D)-printed POC devices, mobile health (mHealth), and noninvasive sampling. As a critical tissue engineering concept, additive manufacturing (AM, also known as 3D printing) enables accurate control over the dimensional and architectural features of the devices. mHealth refers to the use of portable digital devices, such as smartphones, tablet computers, and fitness and medical wearables, to support health, which facilitates contact tracing, and telehealth consultations during the pandemic. Compared with invasive biosample (blood), saliva is of great importance in the spread and surveillance of COVID-19 as a noninvasive diagnostic method for virus detection and immune status monitoring. However, investigations into 3D-printed POC antibody test and mHealth using noninvasive saliva are relatively limited. Further exploration of 3D-printed antibody POC tests and mHealth applications to monitor antibody production for either disease onset or immune response following vaccination is warranted. This review briefly describes the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus and immune response after infection and vaccination, then discusses current widely used binding antibody tests using blood samples and enzyme-linked immunosorbent assays on two-dimensional microplates before focusing upon emerging POC technological platforms, such as field-effect transistor biosensors, lateral flow assay, microfluidics, and AM for fabricating immunoassays, and the possibility of their combination with mHealth. This review proposes that noninvasive biofluid sampling combined with 3D POC antibody tests and mHealth technologies is a promising and novel approach for POC detection and surveillance of SARS-CoV-2 immune response. Furthermore, as key concepts in dentistry, the application of 3D printing and mHealth was also included to facilitate the appreciation of cutting edge techniques in regenerative dentistry. This review highlights the potential of 3D printing and mHealth in both COVID-19 immunity monitoring and regenerative dentistry.
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Affiliation(s)
- Chun Liu
- School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
- Center for Oral-Facial Regeneration, Rehabilitation and Reconstruction (COR3), School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
| | - Reuben Staples
- Center for Oral-Facial Regeneration, Rehabilitation and Reconstruction (COR3), School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
| | - Maria Natividad Gómez-Cerezo
- Center for Oral-Facial Regeneration, Rehabilitation and Reconstruction (COR3), School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
| | - Sašo Ivanovski
- School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
- Center for Oral-Facial Regeneration, Rehabilitation and Reconstruction (COR3), School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
| | - Pingping Han
- School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
- Center for Oral-Facial Regeneration, Rehabilitation and Reconstruction (COR3), School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
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5
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Pham YL, Wojnowski W, Beauchamp J. Volatile Compound Emissions from Stereolithography Three-Dimensional Printed Cured Resin Models for Biomedical Applications. Chem Res Toxicol 2023; 36:369-379. [PMID: 36534374 DOI: 10.1021/acs.chemrestox.2c00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Stereolithography three-dimensional printing is used increasingly in biomedical applications to create components for use in healthcare and therapy. The exposure of patients to volatile organic compounds (VOCs) emitted from cured resins represents an element of concern in such applications. Here, we investigate the biocompatibility in relation to inhalation exposure of volatile emissions of three different cured commercial resins for use in printing a mouthpiece adapter for sampling exhaled breath. VOC emission rates were estimated based on direct analysis using a microchamber/thermal extractor coupled to a proton transfer reaction-mass spectrometer. Complementary analyses using comprehensive gas chromatography-mass spectrometry aided compound identification. Major VOCs emitted from the cured resins were associated with polymerization agents, additives, and postprocessing procedures and included alcohols, aldehydes, ketones, hydrocarbons, esters, and terpenes. Total VOC emissions from cubes printed using the general-purpose resin were approximately an order of magnitude higher than those of the cubes printed using resins dedicated to biomedical applications at the respective test temperatures (40 and 25 °C). Daily inhalation exposures were estimated and compared with daily tolerable intake levels or standard thresholds of toxicological concerns. The two resins intended for biomedical applications were deemed suitable for fabricating an adapter mouthpiece for use in breath research. The general-purpose resin was unsuitable, with daily inhalation exposures for breath sampling applications at 40 °C estimated at 310 μg day-1 for propylene glycol (tolerable intake (TI) limit of 190 μg day-1) and 1254 μg day-1 for methyl acrylate (TI of 43 μg day-1).
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Affiliation(s)
- Y Lan Pham
- Department of Sensory Analytics and Technologies, Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354Freising, Germany
- Department of Chemistry and Pharmacy, Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9, 91054Erlangen, Germany
| | - Wojciech Wojnowski
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233Gdańsk, Poland
- Department of Chemistry, University of Oslo, P.O. Box 1033-Blindern, 0315Oslo, Norway
| | - Jonathan Beauchamp
- Department of Sensory Analytics and Technologies, Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354Freising, Germany
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Fu J, Liu T, Binte Touhid SS, Fu F, Liu X. Functional Textile Materials for Blocking COVID-19 Transmission. ACS NANO 2023; 17:1739-1763. [PMID: 36683285 PMCID: PMC9885531 DOI: 10.1021/acsnano.2c08894] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
The outbreak of COVID-19 provided a warning sign for society worldwide: that is, we urgently need to explore effective strategies for combating unpredictable viral pandemics. Protective textiles such as surgery masks have played an important role in the mitigation of the COVID-19 pandemic, while revealing serious challenges in terms of supply, cross-infection risk, and environmental pollution. In this context, textiles with an antivirus functionality have attracted increasing attention, and many innovative proposals with exciting commercial possibilities have been reported over the past three years. In this review, we illustrate the progress of textile filtration for pandemics and summarize the recent development of antiviral textiles for personal protective purposes by cataloging them into three classes: metal-based, carbon-based, and polymer-based materials. We focused on the preparation routes of emerging antiviral textiles, providing a forward-looking perspective on their opportunities and challenges, to evaluate their efficacy, scale up their manufacturing processes, and expand their high-volume applications. Based on this review, we conclude that ideal antiviral textiles are characterized by a high filtration efficiency, reliable antiviral effect, long storage life, and recyclability. The expected manufacturing processes should be economically feasible, scalable, and quickly responsive.
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Affiliation(s)
- Jiajia Fu
- School of Materials Science and Engineering,
Zhejiang Sci-Tech University, Xiasha Higher Education Zone,
Hangzhou310018, People’s Republic of China
| | - Tianxing Liu
- Department of Cell and Systems Biology,
University of Toronto, Toronto, OntarioM5S1A1,
Canada
| | - S Salvia Binte Touhid
- School of Materials Science and Engineering,
Zhejiang Sci-Tech University, Xiasha Higher Education Zone,
Hangzhou310018, People’s Republic of China
| | - Feiya Fu
- School of Materials Science and Engineering,
Zhejiang Sci-Tech University, Xiasha Higher Education Zone,
Hangzhou310018, People’s Republic of China
| | - Xiangdong Liu
- School of Materials Science and Engineering,
Zhejiang Sci-Tech University, Xiasha Higher Education Zone,
Hangzhou310018, People’s Republic of China
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7
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Ho ML, Arnold CW, Decker SJ, Hazle JD, Krupinski EA, Mankoff DA. Institutional Strategies to Maintain and Grow Imaging Research During the COVID-19 Pandemic. Acad Radiol 2023; 30:631-639. [PMID: 36764883 PMCID: PMC9816088 DOI: 10.1016/j.acra.2022.12.045] [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: 10/24/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 01/09/2023]
Abstract
Understanding imaging research experiences, challenges, and strategies for academic radiology departments during and after COVID-19 is critical to prepare for future disruptive events. We summarize key insights and programmatic initiatives at major academic hospitals across the world, based on literature review and meetings of the Radiological Society of North America Vice Chairs of Research (RSNA VCR) group. Through expert discussion and case studies, we provide suggested guidelines to maintain and grow radiology research in the postpandemic era.
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Affiliation(s)
- Mai-Lan Ho
- Nationwide Children's Hospital and The Ohio State University, Columbus, Ohio.
| | | | | | - John D. Hazle
- The University of Texas MD Anderson Cancer Center, Houston, Texas
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8
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Capelli C, Bertolini M, Schievano S. 3D-printed and computational models: a combined approach for patient-specific studies. 3D Print Med 2023. [DOI: 10.1016/b978-0-323-89831-7.00011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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9
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Sandanamsamy L, Harun WSW, Ishak I, Romlay FRM, Kadirgama K, Ramasamy D, Idris SRA, Tsumori F. A comprehensive review on fused deposition modelling of polylactic acid. PROGRESS IN ADDITIVE MANUFACTURING 2022; 8:1-25. [PMID: 38625345 PMCID: PMC9619022 DOI: 10.1007/s40964-022-00356-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 10/15/2022] [Indexed: 05/13/2023]
Abstract
Fused Deposition Modelling (FDM) is one of the additive manufacturing (AM) techniques that have emerged as the most feasible and prevalent approach for generating functional parts due to its ability to produce neat and intricate parts. FDM mainly utilises one of the widely used polymers, polylactic acid, also known as polylactide (PLA). It is an aliphatic polyester material and biocompatible thermoplastic, with the best design prospects due to its eco-friendly properties; when PLA degrades, it breaks down into water and carbon dioxide, neither of which are hazardous to the environment. However, PLA has its limitations of poor mechanical properties. Therefore, a filler reinforcement may enhance the characteristics of PLA and produce higher-quality FDM-printed parts. The processing parameters also play a significant role in the final result of the printed parts. This review aims to study and discover the properties of PLA and the optimum processing parameters. This review covers PLA in FDM, encompassing its mechanical properties, processing parameters, characterisation, and applications. A comprehensive description of FDM processing parameters is outlined as it plays a vital role in determining the quality of a printed product. In addition, PLA polymer is highly desirable for various field industrial applications such as in a medical, automobile, and electronic, given its excellent thermoplastic and biodegradability properties.
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Affiliation(s)
- L. Sandanamsamy
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - W. S. W. Harun
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - I. Ishak
- Faculty of Manufacturing and Mechatronic Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Malaysia
| | - F. R. M. Romlay
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - K. Kadirgama
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - D. Ramasamy
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - S. R. A. Idris
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - F. Tsumori
- Department of Aeronautics and Astronautics, Faculty of Engineering, Kyushu University, 744 Motooka Nishi-Ku, Fukuoka, 819-0395 Japan
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10
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Stefano JS, Silva LRGE, Janegitz BC. New carbon black-based conductive filaments for the additive manufacture of improved electrochemical sensors by fused deposition modeling. Mikrochim Acta 2022; 189:414. [PMID: 36217039 PMCID: PMC9550156 DOI: 10.1007/s00604-022-05511-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/23/2022] [Indexed: 02/07/2023]
Abstract
The development of a homemade carbon black composite filament with polylactic acid (CB-PLA) is reported. Optimized filaments containing 28.5% wt. of carbon black were obtained and employed in the 3D printing of improved electrochemical sensors by fused deposition modeling (FDM) technique. The fabricated filaments were used to construct a simple electrochemical system, which was explored for detecting catechol and hydroquinone in water samples and detecting hydrogen peroxide in milk. The determination of catechol and hydroquinone was successfully performed by differential pulse voltammetry, presenting LOD values of 0.02 and 0.22 µmol L-1, respectively, and recovery values ranging from 91.1 to 112% in tap water. Furthermore, the modification of CB-PLA electrodes with Prussian blue allowed the non-enzymatic amperometric detection of hydrogen peroxide at 0.0 V (vs. carbon black reference electrode) in milk samples, with a linear range between 5.0 and 350.0 mol L-1 and low limit of detection (1.03 µmol L-1). Thus, CB-PLA can be successfully applied as additively manufactured electrochemical sensors, and the easy filament manufacturing process allows for its exploration in a diversity of applications.
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Affiliation(s)
- Jéssica Santos Stefano
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras, São Paulo, 13600-970, Brazil
| | - Luiz Ricardo Guterres E Silva
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras, São Paulo, 13600-970, Brazil
- Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos, Sorocaba, São Paulo, 18052-780, Brazil
| | - Bruno Campos Janegitz
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras, São Paulo, 13600-970, Brazil.
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11
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Pham YL, Beauchamp J, Clement A, Wiegandt F, Holz O. 3D-printed mouthpiece adapter for sampling exhaled breath in medical applications. 3D Print Med 2022; 8:27. [PMID: 35943600 PMCID: PMC9364600 DOI: 10.1186/s41205-022-00150-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
The growing use of 3D printing in the biomedical sciences demonstrates its utility for a wide range of research and healthcare applications, including its potential implementation in the discipline of breath analysis to overcome current limitations and substantial costs of commercial breath sampling interfaces. This technical note reports on the design and construction of a 3D-printed mouthpiece adapter for sampling exhaled breath using the commercial respiration collector for in-vitro analysis (ReCIVA) device. The paper presents the design and digital workflow transition of the adapter and its fabrication from three commercial resins (Surgical Guide, Tough v5, and BioMed Clear) using a Formlabs Form 3B stereolithography (SLA) printer. The use of the mouthpiece adapter in conjunction with a pulmonary function filter is appraised in comparison to the conventional commercial silicon facemask sampling interface. Besides its lower cost - investment cost of the printing equipment notwithstanding - the 3D-printed adapter has several benefits, including ensuring breath sampling via the mouth, reducing the likelihood of direct contact of the patient with the breath sampling tubes, and being autoclaveable to enable the repeated use of a single adapter, thereby reducing waste and associated environmental burden compared to current one-way disposable facemasks. The novel adapter for breath sampling presented in this technical note represents an additional field of application for 3D printing that further demonstrates its widespread applicability in biomedicine.
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Affiliation(s)
- Y Lan Pham
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354, Freising, Germany.,Department of Chemistry and Pharmacy, Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9, 91054, Erlangen, Germany
| | - Jonathan Beauchamp
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354, Freising, Germany
| | - Alexander Clement
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Feodor-Lynen-Str. 15, 30625, Hannover, Germany
| | - Felix Wiegandt
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Feodor-Lynen-Str. 15, 30625, Hannover, Germany
| | - Olaf Holz
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Feodor-Lynen-Str. 15, 30625, Hannover, Germany. .,Member of the German Centre of Lung Research DZL (BREATH), Hannover, Germany.
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12
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De Maio F, Rosa E, Perini G, Augello A, Niccolini B, Ciaiola F, Santarelli G, Sciandra F, Bozzi M, Sanguinetti M, Sali M, De Spirito M, Delogu G, Palmieri V, Papi M. 3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects. CARBON 2022; 194:34-41. [PMID: 35313599 PMCID: PMC8926154 DOI: 10.1016/j.carbon.2022.03.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/21/2022] [Accepted: 03/14/2022] [Indexed: 05/24/2023]
Abstract
Additive manufacturing has played a crucial role in the COVID-19 global emergency allowing for rapid production of medical devices, indispensable tools for hospitals, or personal protection equipment. However, medical devices, especially in nosocomial environments, represent high touch surfaces prone to viral infection and currently used filaments for 3D printing can't inhibit transmission of virus [1]. Graphene-family materials are capable of reinforcing mechanical, optical and thermal properties of 3D printed constructs. In particular, graphene can adsorb near-infrared light with high efficiency. Here we demonstrate that the addition of graphene nanoplatelets to PLA filaments (PLA-G) allows the creation of 3D-printed devices that can be sterilized by near-infrared light exposure at power density analog to sunlight. This method has been used to kill SARS-CoV-2 viral particles on the surface of 3D printed PLA-G by 3 min of exposure. 3D-printed PLA-G is highly biocompatible and can represent the ideal material for the production of sterilizable personal protective equipment and daily life objects intended for multiple users.
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Affiliation(s)
- Flavio De Maio
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie - Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Enrico Rosa
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Giordano Perini
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
| | - Alberto Augello
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
| | - Benedetta Niccolini
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
| | - Francesca Ciaiola
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Giulia Santarelli
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie - Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Francesca Sciandra
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", (SCITEC)-CNR, Roma, Italy
| | - Manuela Bozzi
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Sezione di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maurizio Sanguinetti
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie - Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Michela Sali
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie - Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
| | - Marco De Spirito
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
| | - Giovanni Delogu
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie - Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Mater Olbia Hospital, Olbia, Italy
| | - Valentina Palmieri
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
- Istituto dei Sistemi Complessi, CNR, Via dei Taurini 19, 00185, Rome, Italy
| | - Massimiliano Papi
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Largo Francesco Vito 1, 00168, Italy
- Fondazione Policlinico Universitario "A. Gemelli" IRCSS, Largo A. Gemelli, 8 00168, Rome, Italy
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Damilos S, Saliakas S, Kokkinopoulos I, Karayannis P, Karamitrou M, Trompeta AF, Charitidis C, Koumoulos EP. Occupational Safety Analysis for COVID-Instigated Repurposed Manufacturing Lines: Use of Nanomaterials in Injection Moulding. Polymers (Basel) 2022; 14:polym14122418. [PMID: 35745994 PMCID: PMC9228191 DOI: 10.3390/polym14122418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 12/05/2022] Open
Abstract
The COVID-19 pandemic instigated massive production of critical medical supplies and personal protective equipment. Injection moulding (IM) is considered the most prominent thermoplastic part manufacturing technique, offering the use of a large variety of feedstocks and rapid production capacity. Within the context of the European Commission-funded imPURE project, the benefits of IM have been exploited in repurposed IM lines to accommodate the use of nanocomposites and introduce the unique properties of nanomaterials. However, these amendments in the manufacturing lines highlighted the need for targeted and thorough occupational risk analysis due to the potential exposure of workers to airborne nanomaterials and fumes, as well as the introduction of additional occupational hazards. In this work, a safety-oriented failure mode and effects analysis (FMEA) was implemented to evaluate the main hazards in repurposed IM lines using acrylonitrile butadiene styrene (ABS) matrix and silver nanoparticles (AgNPs) as additives. Twenty-eight failure modes were identified, with the upper quartile including the seven failure modes presenting the highest risk priority numbers (RPN), signifying a need for immediate control action. Additionally, a nanosafety control-banding tool allowed hazard classification and the identification of control actions required for mitigation of occupation risks due to the released airborne silver nanoparticles.
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Affiliation(s)
- Spyridon Damilos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Stratos Saliakas
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Ioannis Kokkinopoulos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Panagiotis Karayannis
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Melpo Karamitrou
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Aikaterini-Flora Trompeta
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Costas Charitidis
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Elias P. Koumoulos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
- Correspondence:
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14
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Cano-Vicent A, Hashimoto R, Takayama K, Serrano-Aroca Á. Biocompatible Films of Calcium Alginate Inactivate Enveloped Viruses Such as SARS-CoV-2. Polymers (Basel) 2022; 14:polym14071483. [PMID: 35406356 PMCID: PMC9002394 DOI: 10.3390/polym14071483] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 02/04/2023] Open
Abstract
The current pandemic is urgently demanding the development of alternative materials capable of inactivating the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes the coronavirus 2019 (COVID-19) disease. Calcium alginate is a crosslinked hydrophilic biopolymer with an immense range of biomedical applications due to its excellent chemical, physical, and biological properties. In this study, the cytotoxicity and antiviral activity of calcium alginate in the form of films were studied. The results showed that these films, prepared by solvent casting and subsequent crosslinking with calcium cations, are biocompatible in human keratinocytes and are capable of inactivating enveloped viruses such as bacteriophage phi 6 with a 1.43-log reduction (94.92% viral inactivation) and SARS-CoV-2 Delta variant with a 1.64-log reduction (96.94% viral inactivation) in virus titers. The antiviral activity of these calcium alginate films can be attributed to its compacted negative charges that may bind to viral envelopes inactivating membrane receptors.
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Affiliation(s)
- Alba Cano-Vicent
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
| | - Rina Hashimoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan;
| | - Kazuo Takayama
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan;
- Correspondence: (K.T.); (Á.S.-A.)
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
- Correspondence: (K.T.); (Á.S.-A.)
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15
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Jin Z, He C, Fu J, Han Q, He Y. Balancing the customization and standardization: exploration and layout surrounding the regulation of the growing field of 3D-printed medical devices in China. Biodes Manuf 2022; 5:580-606. [PMID: 35194519 PMCID: PMC8853031 DOI: 10.1007/s42242-022-00187-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/17/2022] [Indexed: 12/23/2022]
Abstract
Medical devices are instruments and other tools that act on the human body to aid clinical diagnosis and disease treatment, playing an indispensable role in modern medicine. Nowadays, the increasing demand for personalized medical devices poses a significant challenge to traditional manufacturing methods. The emerging manufacturing technology of three-dimensional (3D) printing as an alternative has shown exciting applications in the medical field and is an ideal method for manufacturing such personalized medical devices with complex structures. However, the application of this new technology has also brought new risks to medical devices, making 3D-printed devices face severe challenges due to insufficient regulation and the lack of standards to provide guidance to the industry. This review aims to summarize the current regulatory landscape and existing research on the standardization of 3D-printed medical devices in China, and provide ideas to address these challenges. We focus on the aspects concerned by the regulatory authorities in 3D-printed medical devices, highlighting the quality system of such devices, and discuss the guidelines that manufacturers should follow, as well as the current limitations and the feasible path of regulation and standardization work based on this perspective. The key points of the whole process quality control, performance evaluation methods and the concept of whole life cycle management of 3D-printed medical devices are emphasized. Furthermore, the significance of regulation and standardization is pointed out. Finally, aspects worthy of attention and future perspectives in this field are discussed.
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Affiliation(s)
- Zhongboyu Jin
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Chaofan He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Jianzhong Fu
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Qianqian Han
- National Institutes for Food and Drug Control, Beijing, 102629 China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China
- Key Laboratory of Materials Processing and Mold, Zhengzhou University, Zhengzhou, 450002 China
- Cancer Center, Zhejiang University, Hangzhou, 310058 China
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16
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Monzamodeth RS, Román-Roldán NI, Hernández-Morales B, Puente I, Flores O, Castillo F, Campillo B. The feasibility of masks and face shields designed by 3D printing makers; some considerations of their use against the COVID-19. MATERIALS TODAY. PROCEEDINGS 2022; 59:756-763. [PMID: 35004186 PMCID: PMC8722435 DOI: 10.1016/j.matpr.2021.12.503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The use of mask and face shield has been established as one of the main preventive measures for the control of COVID 19 spread. In Mexico, as well as in other regions of the world, 3D printing has been employed for the design and production of masks and face shields as personal protective equipment (PPE). These models have been fabricated mainly by the makers, industries, and university communities; therefore, it is necessary to analyze the feasibility of the 3D printed PPE to understand its advantages and limitations. In this work, some characteristics of masks and face shields fabricated by additive manufacturing were studied to explore their viability as protection against flow fluids similar to human sneeze. In the present paper, the PPE was designed, and 3D printed utilizing three types of polylactic acid (PLA) as base material. The morphology and the surface elemental analyses of sectioned samples were analyzed by scanning electron microscopy (SEM) and energy dispersion x-ray spectroscopy (EDS). Showing spacing between printed layers, porous areas, and dispersed copper particles. On the other hand, a computational fluid dynamics (CFD) simulation was carried out, the results demonstrated the importance of using PPE for protection of a possible exposure to a “contaminated” aerosol and human sneeze. Based on the abovementioned results, it is possible to consider the commercial PLA as suitable material for the manufacturing of PPE due to its capability to be disinfected employing isopropanol, ethanol, or commercial disinfectants.
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Affiliation(s)
- R S Monzamodeth
- Facultad de Química, Universidad Nacional Autónoma de México, CP 04510 Ciudad de México, Mexico.,Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, CP 62210 Cuernavaca Morelos, Mexico
| | - N I Román-Roldán
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, CP 62580 Temixco Morelos, Mexico
| | - B Hernández-Morales
- Facultad de Química, Universidad Nacional Autónoma de México, CP 04510 Ciudad de México, Mexico
| | - I Puente
- Facultad de Química, Universidad Nacional Autónoma de México, CP 04510 Ciudad de México, Mexico
| | - O Flores
- Facultad de Química, Universidad Nacional Autónoma de México, CP 04510 Ciudad de México, Mexico.,Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, CP 62210 Cuernavaca Morelos, Mexico
| | - F Castillo
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, CP 62210 Cuernavaca Morelos, Mexico
| | - B Campillo
- Facultad de Química, Universidad Nacional Autónoma de México, CP 04510 Ciudad de México, Mexico.,Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, CP 62210 Cuernavaca Morelos, Mexico
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17
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Mavri M, Fronimaki E, Kadrefi A. Survey analysis for the adoption of 3D printing technology: consumers’ perspective. JOURNAL OF SCIENCE AND TECHNOLOGY POLICY MANAGEMENT 2021. [DOI: 10.1108/jstpm-02-2020-0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Although the adoption of 3D printing technology in many sectors such as medicine, aerospace, jewelry and the food industry is remarkable, the adoption of 3D printing technology by hobbyists remains unknown. The purpose of this paper is to map the attitude of individuals toward this new technology, define critical factors that have an impact on hobbyists’ behavior and, finally, explore the impact of 3D printing on social, economic and environmental changes, as 3D printing technology redesigns manufacturing, thereby impacting many sectors of day-to-day life.
Design/methodology/approach
A survey has been carried out on Greek hobbyists, and valuable conclusions have been drawn. Data were collected using a structured questionnaire survey performed on a sample of 344 Greek consumers in this sector. A questionnaire of 30 questions was distributed electronically.
Findings
This paper contributes to the determination of the percentage of individuals that know about 3D printing, the factors that have a significant contribution to adoption of the technology and, finally, identifies the profile of those that use 3D printing technology either in their work or for their hobby. Using a factor analysis, the authors classified users into five categories based on their attitudes towards 3D printing adoption: “innovators,” “informed,” “ecologists,” “engineers” and “re-users.”
Research limitations/implications
The authors believe that understanding the predictors of 3D printing technology adoption for personal use and its benefits will overcome a pertained research gap and establish an empirical nucleus for further studies in relevant contexts. This type of research is necessary to expand the survey to other European countries.
Practical implications
3D printing is not new, but rather is an emerging technology. Individuals are willing to adopt this innovative technology. Based on the results of our survey, a desktop 3D printer will be necessary for every home and office in the near future.
Social implications
The impact of 3D printing technology on rural life and its social implications are open questions. In this paper, by identifying the groups of hobbyists, the authors determine their particular characteristics and their perspectives on this new technology. All of what is discussed above is valuable for mapping the characteristics of those who adopt this technology.
Originality/value
This study is attempting to determine the behavior of individuals towards 3D printing technology, their awareness and how familiar they are with this new technological innovation.
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Abstract
Hydrogen is a notoriously difficult substance to store yet has endless energy applications. Thus, the study of long-term hydrogen storage, and high-pressure bulk hydrogen storage have been the subject of much research in the last several years. To create a research path forward, it is important to know what research has already been done, and what is already known about hydrogen storage. In this review, several approaches to hydrogen storage are addressed, including high-pressure storage, cryogenic liquid hydrogen storage, and metal hydride absorption. Challenges and advantages are offered based on reported research findings. Since the project looks closely at advanced manufacturing, techniques for the same are outlined as well. There are seven main categories into which most rapid prototyping styles fall. Each is briefly explained and illustrated as well as some generally accepted advantages and drawbacks to each style. An overview of hydrogen adsorption on metal hydrides, carbon fibers, and carbon nanotubes are presented. The hydrogen storage capacities of these materials are discussed as well as the differing conditions in which the adsorption was performed under. Concepts regarding storage shape and materials accompanied by smaller-scale advanced manufacturing options for hydrogen storage are also presented.
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19
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Balcerak A, Kabatc J, Czech Z, Nowak M, Mozelewska K. High-Performance UV-Vis Light Induces Radical Photopolymerization Using Novel 2-Aminobenzothiazole-Based Photosensitizers. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7814. [PMID: 34947409 PMCID: PMC8705399 DOI: 10.3390/ma14247814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/10/2021] [Accepted: 12/13/2021] [Indexed: 11/17/2022]
Abstract
The popularity of using the photopolymerization reactions in various areas of science and technique is constantly gaining importance. Light-induced photopolymerization is the basic process for the production of various polymeric materials. The key role in the polymerization reaction is the photoinitiator. The huge demand for radical and cationic initiators results from the dynamic development of the medical sector, and the optoelectronic, paints, coatings, varnishes and adhesives industries. For this reason, we dealt with the subject of designing new, highly-efficient radical photoinitiators. This paper describes novel photoinitiating systems operating in UV-Vis light for radical polymerization of acrylates. The proposed photoinitiators are composed of squaraine (SQ) as a light absorber and various diphenyliodonium (Iod) salts as co-initiators. The kinetic parameters of radical polymerization of trimethylolpropane triacrylate (TMPTA), such as the degree of double bonds conversion (C%), the rate of photopolymerization (Rp), as well as the photoinitiation index (Ip) were calculated. It was found that 2-aminobenzothiazole derivatives in the presence of iodonium salts effectively initiated the polymerization of TMPTA. The rates of polymerization were at about 2 × 10-2 s-1 and the degree of conversion of acrylate groups from 10% to 36% were observed. The values of the photoinitiating indexes for the most optimal initiator concentration, i.e., 5 × 10-3 M were in the range from 1 × 10-3 s-2 even to above 9 × 10-3 s-2. The photoinitiating efficiency of new radical initiators depends on the concentration and chemical structure of used photoinitiator. The role of squaraine-based photoinitiating systems as effective dyeing photoinitiators for radical polymerization is highlighted in this article.
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Affiliation(s)
- Alicja Balcerak
- Department of Organic Chemistry, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland;
| | - Janina Kabatc
- Department of Organic Chemistry, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland;
| | - Zbigniew Czech
- International Laboratory of Adhesives and Self-Adhesive Materials, Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland; (M.N.); (K.M.)
| | - Małgorzata Nowak
- International Laboratory of Adhesives and Self-Adhesive Materials, Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland; (M.N.); (K.M.)
| | - Karolina Mozelewska
- International Laboratory of Adhesives and Self-Adhesive Materials, Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland; (M.N.); (K.M.)
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20
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Design of Customized TPU Lattice Structures for Additive Manufacturing: Influence on the Functional Properties in Elastic Products. Polymers (Basel) 2021; 13:polym13244341. [PMID: 34960892 PMCID: PMC8705238 DOI: 10.3390/polym13244341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/02/2021] [Accepted: 12/07/2021] [Indexed: 12/23/2022] Open
Abstract
This work focuses on evaluating and establishing the relationship of the influence of geometrical and manufacturing parameters in stiffness of additively manufactured TPU lattice structures. The contribution of this work resides in the creation of a methodology that focuses on characterizing the behavior of elastic lattice structures. Likewise, resides in the possibility of using the statistical treatment of results as a guide to find favorable possibilities within the range of parameters studied and to predict the behavior of the structures. In order to characterize their behavior, different types of specimens were designed and tested by finite element simulation of a compression process using Computer Aided Engineering (CAE) tools. The tests showed that the stiffness depends on the topology of the cells of the lattice structure. For structures with different cell topologies, it has been possible to obtain an increase in the reaction force against compression from 24.7 N to 397 N for the same manufacturing conditions. It was shown that other parameters with a defined influence on the stiffness of the structure were the temperature and the unit size of the cells, all due to the development of fusion mechanisms and the variation in the volume of material used, respectively.
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21
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Muñoz J, Pumera M. 3D-Printed COVID-19 immunosensors with electronic readout. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 425:131433. [PMID: 34393616 PMCID: PMC8349461 DOI: 10.1016/j.cej.2021.131433] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/30/2021] [Accepted: 07/18/2021] [Indexed: 05/09/2023]
Abstract
3D printing technology has brought light in the fight against the COVID-19 global pandemic event through the decentralized and on-demand manufacture of different personal protective equipment and medical devices. Nonetheless, since this technology is still in an early stage, the use of 3D-printed electronic devices for antigen test developments is almost an unexplored field. Herein, a robust and general bottom-up biofunctionalization approach via surface engineering is reported aiming at providing the bases for the fabrication of the first 3D-printed COVID-19 immunosensor prototype with electronic readout. The 3D-printed COVID-19 immunosensor was constructed by covalently anchoring the COVID-19 recombinant protein on a 3D-printed graphene-based nanocomposite electrode surface. The electrical readout relies on impedimetrically monitoring changes at the electrode/electrolyte interface after interacting with the monoclonal COVID-19 antibody via competitive assay, fact that hinders the redox conversion of a benchmark redox marker. Overall, the developed 3D-printed system exhibits promising electroanalytical capabilities in both buffered and human serum samples, displaying an excellent linear response with a detection limit at trace levels (0.5 ± 0.1 μg·mL-1). Such achievements demonstrate advantage of light-of-speed distribution of 3D printing datafiles with localized point-of-care low-cost printing and bioelectronic devices to help contain the spread of emerging infectious diseases such as COVID-19. This technology is applicable to any post-COVID-19 SARS diseases.
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Affiliation(s)
- Jose Muñoz
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology (CEITEC-BUT), Brno 61600, Czech Republic
| | - Martin Pumera
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology (CEITEC-BUT), Brno 61600, Czech Republic
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, Taiwan
- 3D Printing & Innovation Hub, Department of Food Technology, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Abstract
The aim of this article is to characterize the impacts of Smart Additive Manufacturing (SAM) on industrial production, digital supply chains (DSCs) and corresponding digital value chains (DVCs), logistics and inventory management. The method used consists of a critical review of the literature, enriched by the authors’ field experience. The results show that digital transformation of manufacturing is affecting business models, from resource acquisition to the end user. Smart manufacturing is considered a successful improvement introduced by Industry 4.0. Additive Manufacturing (AM) plays a crucial role in this digital transformation, changing the way manufacturers think about the entire lifecycle of a product. SAM combines AM in a smart factory environment. SAM reduces the complexity of DSCs and contributes to a more flexible approach to logistics and inventory management. It has also spurred the growth and popularization of customized mass production as well as decentralized manufacturing, rapid prototyping, unprecedented flexibility in product design, production and delivery, and resource efficiency and sustainability. SAM technology impacts all five Fletcher’s stages in DVCs. However, the need for clear definitions and regulations on 3D printing of digital files and their reproduction, as well as product health, safety, and integrity issues, cannot be ignored. Furthermore, investment in this technology is still expensive and can be prohibitive for many companies, namely SMEs.
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Dobrzyńska E, Kondej D, Kowalska J, Szewczyńska M. State of the art in additive manufacturing and its possible chemical and particle hazards-review. INDOOR AIR 2021; 31:1733-1758. [PMID: 34081372 PMCID: PMC8596642 DOI: 10.1111/ina.12853] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/29/2021] [Accepted: 04/21/2021] [Indexed: 05/27/2023]
Abstract
Additive manufacturing, enabling rapid prototyping and so-called on-demand production, has become a common method of creating parts or whole devices. On a 3D printer, real objects are produced layer by layer, thus creating extraordinary possibilities as to the number of applications for this type of devices. The opportunities offered by this technique seem to be pushing new boundaries when it comes to both the use of 3D printing in practice and new materials from which the 3D objects can be printed. However, the question arises whether, at the same time, this solution is safe enough to be used without limitations, wherever and by everyone. According to the scientific reports, three-dimensional printing can pose a threat to the user, not only in terms of physical or mechanical hazards, but also through the potential emissions of chemical substances and fine particles. Thus, the presented publication collects information on the additive manufacturing, different techniques, and ways of printing with application of diverse raw materials. It presents an overview of the last 5 years' publications focusing on 3D printing, especially regarding the potential chemical and particle emission resulting from the use of such printers in both the working environment and private spaces.
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Affiliation(s)
- Elżbieta Dobrzyńska
- Central Institute for Labour Protection—National Research InstituteWarsawPoland
| | - Dorota Kondej
- Central Institute for Labour Protection—National Research InstituteWarsawPoland
| | - Joanna Kowalska
- Central Institute for Labour Protection—National Research InstituteWarsawPoland
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24
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Nanostructural interface and strength of polymer composite scaffolds applied to intervertebral bone. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127190] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Told R, Marada G, Rendeki S, Pentek A, Nagy B, Molnar FJ, Maroti P. Manufacturing a First Upper Molar Dental Forceps Using Continuous Fiber Reinforcement (CFR) Additive Manufacturing Technology with Carbon-Reinforced Polyamide. Polymers (Basel) 2021; 13:2647. [PMID: 34451187 PMCID: PMC8399141 DOI: 10.3390/polym13162647] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/01/2021] [Accepted: 08/04/2021] [Indexed: 12/23/2022] Open
Abstract
3D printing is an emerging and disruptive technology, supporting the field of medicine over the past decades. In the recent years, the use of additive manufacturing (AM) has had a strong impact on everyday dental applications. Despite remarkable previous results from interdisciplinary research teams, there is no evidence or recommendation about the proper fabrication of handheld medical devices using desktop 3D printers. The aim of this study was to critically examine and compare the mechanical behavior of materials printed with FFF (fused filament fabrication) and CFR (continuous fiber reinforcement) additive manufacturing technologies, and to create and evaluate a massive and practically usable right upper molar forceps. Flexural and torsion fatigue tests, as well as Shore D measurements, were performed. The tensile strength was also measured in the case of the composite material. The flexural tests revealed the measured force values to have a linear correlation with the bending between the 10 mm (17.06 N at 5000th cycle) and 30 mm (37.99 N at 5000th cycle) deflection range. The findings were supported by scanning electron microscopy (SEM) images. Based on the results of the mechanical and structural tests, a dental forceps was designed, 3D printed using CFR technology, and validated by five dentists using a Likert scale. In addition, the vertical force of extraction was measured using a unique molar tooth model, where the reference test was carried out using a standard metal right upper molar forceps. Surprisingly, the tests revealed there to be no significant differences between the standard (84.80 N ± 16.96 N) and 3D-printed devices (70.30 N ± 4.41 N) in terms of extraction force in the tested range. The results also highlighted that desktop CFR technology is potentially suitable for the production of handheld medical devices that have to withstand high forces and perform load-bearing functions.
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Affiliation(s)
- Roland Told
- 3D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, Hungary; (R.T.); (A.P.)
| | - Gyula Marada
- Clinical Centre, Department of Dentistry, Oral and Maxillofacial Surgery, University of Pecs, Dischka Győző Street 5, 7621 Pécs, Hungary;
| | - Szilard Rendeki
- Medical Simulation Education Centre, Medical School, University of Pecs, Szigeti Road 12, 7624 Pécs, Hungary; (S.R.); (F.J.M.)
- Clinical Centre, Department of Anesthesiology and Intensive Therapy, University of Pecs, Ifjúság Roud 13, 7624 Pécs, Hungary;
| | - Attila Pentek
- 3D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, Hungary; (R.T.); (A.P.)
| | - Balint Nagy
- Clinical Centre, Department of Anesthesiology and Intensive Therapy, University of Pecs, Ifjúság Roud 13, 7624 Pécs, Hungary;
| | - Ferenc Jozsef Molnar
- Medical Simulation Education Centre, Medical School, University of Pecs, Szigeti Road 12, 7624 Pécs, Hungary; (S.R.); (F.J.M.)
| | - Peter Maroti
- 3D Printing and Visualization Centre, University of Pecs, Boszorkány Street 2, 7624 Pécs, Hungary; (R.T.); (A.P.)
- Clinical Centre, Department of Dentistry, Oral and Maxillofacial Surgery, University of Pecs, Dischka Győző Street 5, 7621 Pécs, Hungary;
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3D printing technologies for in vitro vaccine testing platforms and vaccine delivery systems against infectious diseases. Essays Biochem 2021; 65:519-531. [PMID: 34342360 DOI: 10.1042/ebc20200105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/21/2021] [Accepted: 07/05/2021] [Indexed: 11/17/2022]
Abstract
Recent advances in 3D printing (3DP) and tissue engineering approaches enable the potential application of these technologies to vaccine research. Reconstituting the native tissue or cellular microenvironment will be vital for successful evaluation of pathogenicity of viral infection and screening of potential vaccines. Therefore, establishing a reliable in vitro model to study the vaccine efficiency or delivery of viral disease is important. Here, this review summarizes two major ways that tissue engineering and 3DP strategies could contribute to vaccine research: (1) 3D human tissue models to study the response to virus can be served as a testbed for new potential therapeutics. Using 3D tissue platform attempts to explore alternative options to pre-clinical animal research for evaluating vaccine candidates. (2) 3DP technologies can be applied to improve the vaccination strategies which could replace existing vaccine delivery. Controlled antigen release using carriers that are generated with biodegradable biomaterials can further enhance the efficient development of immunity as well as combination of multiple-dose vaccines into a single injection. This mini review discusses the up-to-date report of current 3D tissue/organ models for potential vaccine potency and known bioengineered vaccine delivery systems.
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Dartnell LR, Kish K. Do responses to the COVID-19 pandemic anticipate a long-lasting shift towards peer-to-peer production or degrowth? SUSTAINABLE PRODUCTION AND CONSUMPTION 2021; 27:2165-2177. [PMID: 34722844 PMCID: PMC8542348 DOI: 10.1016/j.spc.2021.05.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 05/08/2021] [Accepted: 05/20/2021] [Indexed: 05/24/2023]
Abstract
The COVID-19 pandemic simultaneously triggered a sudden, substantial increase in demand for items such as personal protection equipment and hospital ventilators whilst also disrupting the means of mass-production and international transport in established supply chains. Furthermore, under stay-at-home orders and with bricks-and-mortar retailers closed, consumers were also forced to adapt. Thus the pandemic offers a unique opportunity to study shifts in behaviour during disruption to industrialised manufacturing and economic contraction, in order to understand the role peer-to-peer production may play in a transition to long-term sustainability of production and consumption, or degrowth. Here, we analyse publicly-available datasets on internet search traffic and corporation financial returns to track the shifts in public interest and consumer behaviour over 2019 - 2020. We find a jump in interest in home-making and small-scale production at the beginning of the pandemic, as well as a substantial and sustained shift in consumer preference for peer-to-peer e-commerce platforms relative to more-established online vendors. In particular we present two case studies - the home-made facemasks supplied through Etsy, and the decentralised efforts of the 3D printer community - to assess the effectiveness of their responses to the pandemic. These patterns of behaviour are related to new modes of production in line with ecological economics and as such add capacity to a broader prefiguration of degrowth. We suggest an adoption of a new "fourth wave" of DIY culture defined by enhanced resilience and degrowth to continue to add capacity to a prefigurative politic of degrowth.
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Affiliation(s)
- Lewis R Dartnell
- Department of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, United Kingdom
| | - Kaitlin Kish
- Natural Resource Sciences, McGill University, 21111 Lakeshore, Ste-Anne-de-Bellevue, Sainte-Anne-de-Bellevue, Quebec H9×3V9, Canada
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Budinoff HD, Bushra J, Shafae M. Community-driven PPE production using additive manufacturing during the COVID-19 pandemic: Survey and lessons learned. JOURNAL OF MANUFACTURING SYSTEMS 2021; 60:799-810. [PMID: 35068654 PMCID: PMC8759144 DOI: 10.1016/j.jmsy.2021.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 06/14/2021] [Accepted: 07/07/2021] [Indexed: 05/21/2023]
Abstract
This study presents a detailed analysis of the production efforts for personal protective equipment in makerspaces and informal production spaces (i.e., community-driven efforts) in response to the COVID-19 pandemic in the United States. The focus of this study is on additive manufacturing (also known as 3D printing), which was the dominant manufacturing method employed in these production efforts. Production details from a variety of informal production efforts were systematically analyzed to quantify the scale and efficiency of different efforts. Data for this analysis was primarily drawn from detailed survey data from 74 individuals who participated in these different production efforts, as well as from a systematic review of 145 publicly available news stories. This rich dataset enables a comprehensive summary of the community-driven production efforts, with detailed and quantitative comparisons of different efforts. In this study, factors that influenced production efficiency and success were investigated, including choice of PPE designs, production logistics, and additive manufacturing processes employed by makerspaces and universities. From this investigation, several themes emerged including challenges associated with matching production rates to demand, production methods with vastly different production rates, inefficient production due to slow build times and high scrap rates, and difficulty obtaining necessary feedstocks. Despite these challenges, nearly every maker involved in these production efforts categorized their response as successful. Lessons learned and themes derived from this systematic study of these results are compiled and presented to help inform better practices for future community-driven use of additive manufacturing, especially in response to emergencies.
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Affiliation(s)
- Hannah D Budinoff
- Department of Systems and Industrial Engineering, University of Arizona, Tucson, AZ, United States
| | - Jannatul Bushra
- Department of Systems and Industrial Engineering, University of Arizona, Tucson, AZ, United States
| | - Mohammed Shafae
- Department of Systems and Industrial Engineering, University of Arizona, Tucson, AZ, United States
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Wang Y, Ahmed A, Azam A, Bing D, Shan Z, Zhang Z, Tariq MK, Sultana J, Mushtaq RT, Mehboob A, Xiaohu C, Rehman M. Applications of additive manufacturing (AM) in sustainable energy generation and battle against COVID-19 pandemic: The knowledge evolution of 3D printing. JOURNAL OF MANUFACTURING SYSTEMS 2021; 60:709-733. [PMID: 35068653 PMCID: PMC8759146 DOI: 10.1016/j.jmsy.2021.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/17/2021] [Accepted: 07/17/2021] [Indexed: 05/09/2023]
Abstract
Sustainable and cleaner manufacturing systems have found broad applications in industrial processes, especially aerospace, automotive and power generation. Conventional manufacturing methods are highly unsustainable regarding carbon emissions, energy consumption, material wastage, costly shipment and complex supply management. Besides, during global COVID-19 pandemic, advanced fabrication and management strategies were extremely required to fulfill the shortfall of basic and medical emergency supplies. Three-dimensional printing (3DP) reduces global energy consumption and CO2 emissions related to industrial manufacturing. Various renewable energy harvesting mechanisms utilizing solar, wind, tidal and human potential have been fabricated through additive manufacturing. 3D printing aided the manufacturing companies in combating the deficiencies of medical healthcare devices for patients and professionals globally. In this regard, 3D printed medical face shields, respiratory masks, personal protective equipment, PLA-based recyclable air filtration masks, additively manufactured ideal tissue models and new information technology (IT) based rapid manufacturing are some significant contributions of 3DP. Furthermore, a bibliometric study of 3D printing research was conducted in CiteSpace. The most influential keywords and latest research frontiers were found and the 3DP knowledge was categorized into 10 diverse research themes. The potential challenges incurred by AM industry during the pandemic were categorized in terms of design, safety, manufacturing, certification and legal issues. Significantly, this study highlights the versatile role of 3DP in battle against COVID-19 pandemic and provides up-to-date research frontiers, leading the readers to focus on the current hurdles encountered by AM industry, henceforth conduct further investigations to enhance 3DP technology.
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Affiliation(s)
- Yanen Wang
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Ammar Ahmed
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Ali Azam
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Du Bing
- Center of Stomatology, The Second People's Hospital of Foshan, Foshan, 528000, PR China
| | - Zhang Shan
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Zutao Zhang
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Muhammad Kashif Tariq
- Department of Mechanical Engineering, University of Engineering & Technology, Lahore, 54890, Pakistan
| | - Jakiya Sultana
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Ray Tahir Mushtaq
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Asad Mehboob
- Department of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Chen Xiaohu
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Mudassar Rehman
- Department of Industry Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
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Tareq MS, Rahman T, Hossain M, Dorrington P. Additive manufacturing and the COVID-19 challenges: An in-depth study. JOURNAL OF MANUFACTURING SYSTEMS 2021; 60:787-798. [PMID: 33897085 PMCID: PMC8058390 DOI: 10.1016/j.jmsy.2020.12.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 05/09/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) rapidly achieved global pandemic status. The pandemic created huge demand for relevant medical and personal protective equipment (PPE) and put unprecedented pressure on the healthcare system within a very short span of time. Moreover, the supply chain system faced extreme disruption as a result of the frequent and severe lockdowns across the globe. In such a situation, additive manufacturing (AM) becomes a supplementary manufacturing process to meet the explosive demands and to ease the health disaster worldwide. Providing the extensive design customization, a rapid manufacturing route, eliminating lengthy assembly lines and ensuring low manufacturing lead times, the AM route could plug the immediate supply chain gap, whilst mass production routes restarted again. The AM community joined the fight against COVID-19 by producing components for medical equipment such as ventilators, nasopharyngeal swabs and PPE such as face masks and face shields. The aim of this article is to systematically summarize and to critically analyze all major efforts put forward by the AM industry, academics, researchers, users, and individuals. A step-by-step account is given summarizing all major additively manufactured products that were designed, invented, used, and produced during the pandemic in addition to highlighting some of the potential challenges. Such a review will become a historical document for the future as well as a stimulus for the next generation AM community.
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Affiliation(s)
- Md Sarower Tareq
- Department of Mechanical Engineering, Michigan State University, East Lansing, USA
| | - Tanzilur Rahman
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, USA
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering, College of Engineering, Swansea University, SA1 8EN, United Kingdom
| | - Peter Dorrington
- College of Engineering, Swansea University, SA1 8EN, United Kingdom
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Rai M, Bonde S, Yadav A, Bhowmik A, Rathod S, Ingle P, Gade A. Nanotechnology as a Shield against COVID-19: Current Advancement and Limitations. Viruses 2021; 13:1224. [PMID: 34202815 PMCID: PMC8310263 DOI: 10.3390/v13071224] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/21/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a global health problem that the WHO declared a pandemic. COVID-19 has resulted in a worldwide lockdown and threatened to topple the global economy. The mortality of COVID-19 is comparatively low compared with previous SARS outbreaks, but the rate of spread of the disease and its morbidity is alarming. This virus can be transmitted human-to-human through droplets and close contact, and people of all ages are susceptible to this virus. With the advancements in nanotechnology, their remarkable properties, including their ability to amplify signal, can be used for the development of nanobiosensors and nanoimaging techniques that can be used for early-stage detection along with other diagnostic tools. Nano-based protection equipment and disinfecting agents can provide much-needed protection against SARS-CoV-2. Moreover, nanoparticles can serve as a carrier for antigens or as an adjuvant, thereby making way for the development of a new generation of vaccines. The present review elaborates the role of nanotechnology-based tactics used for the detection, diagnosis, protection, and treatment of COVID-19 caused by the SARS-CoV-2 virus.
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Affiliation(s)
- Mahendra Rai
- Nanobiotechnology Lab., Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India; (S.B.); (A.Y.); (P.I.); (A.G.)
| | - Shital Bonde
- Nanobiotechnology Lab., Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India; (S.B.); (A.Y.); (P.I.); (A.G.)
| | - Alka Yadav
- Nanobiotechnology Lab., Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India; (S.B.); (A.Y.); (P.I.); (A.G.)
| | - Arpita Bhowmik
- Faculty of Medicine, Dentistry and Health, The University of Sheffield, Sheffield S10 2TN, UK;
| | - Sanjay Rathod
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Pramod Ingle
- Nanobiotechnology Lab., Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India; (S.B.); (A.Y.); (P.I.); (A.G.)
| | - Aniket Gade
- Nanobiotechnology Lab., Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India; (S.B.); (A.Y.); (P.I.); (A.G.)
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Abbas MZ. Industrial applications of 3D printing to scale-up production of COVID-19-related medical equipment. JOURNAL OF 3D PRINTING IN MEDICINE 2021; 5:97-110. [PMID: 38051991 PMCID: PMC8357186 DOI: 10.2217/3dp-2021-0003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 07/27/2021] [Indexed: 12/23/2022]
Abstract
Additive manufacturing or 3D printing allows the rapid conversion of information from digital 3D models into physical objects. The current COVID-19 crisis underscored the value of 3D-printing technology in addressing critical shortages in the medical product supply chain. This article provides a review of the significant role of additive manufacturing technologies in addressing the COVID-19 situation. This article concludes that 3D printing has an important role in global public health because of its potential to adapt to emerging situations far more easily and quickly as compared with conventional manufacturing methods. There is a need for further research to improve the technology to mass produce better quality products more economically. Currently, the 3D-printing industry is concentrated in the US and Western Europe. Policy efforts are needed to tap all markets across the globe in order to be better prepared for a future pandemic.
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Affiliation(s)
- Muhammad Zaheer Abbas
- Faculty of Business and Law, Queensland University of Technology, Brisbane, Australia
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He J, Liu G, Mai THT, Li TT. Research on the Allocation of 3D Printing Emergency Supplies in Public Health Emergencies. Front Public Health 2021; 9:657276. [PMID: 33842427 PMCID: PMC8032952 DOI: 10.3389/fpubh.2021.657276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/03/2021] [Indexed: 12/23/2022] Open
Abstract
Significant public health emergencies greatly impact the global supply chain system of production and cause severe shortages in personal protective and medical emergency supplies. Thus, rapid manufacturing, scattered distribution, high design degrees of freedom, and the advantages of the low threshold of 3D printing can play important roles in the production of emergency supplies. In order to better realize the efficient distribution of 3D printing emergency supplies, this paper studies the relationship between supply and demand of 3D printing equipment and emergency supplies produced by 3D printing technology after public health emergencies. First, we fully consider the heterogeneity of user orders, 3D printing equipment resources, and the characteristics of diverse production objectives in the context of the emergent public health environment. The multi-objective optimization model for the production of 3D printing emergency supplies, which was evaluated by multiple manufacturers and in multiple disaster sites, can maximize time and cost benefits of the 3D printing of emergency supplies. Then, an improved non-dominated sorting genetic algorithm (NSGA-II) to solve the multi-objective optimization model is developed and compared with the traditional NSGA-II algorithm analysis. It contains more than one solution in the Pareto optimal solution set. Finally, the effectiveness of 3D printing is verified by numerical simulation, and it is found that it can solve the matching problem of supply and demand of 3D printing emergency supplies in public health emergencies.
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Affiliation(s)
- Jianjia He
- Business School, University of Shanghai for Science of Technology, Shanghai, China.,Super Network Research Center (China), Shanghai, China
| | - Gang Liu
- Business School, University of Shanghai for Science of Technology, Shanghai, China
| | - Thi Hoai Thuong Mai
- Business School, University of Shanghai for Science of Technology, Shanghai, China
| | - Ting Ting Li
- Business School, University of Shanghai for Science of Technology, Shanghai, China
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Guvener O, Eyidogan A, Oto C, Huri PY. Novel additive manufacturing applications for communicable disease prevention and control: focus on recent COVID-19 pandemic. EMERGENT MATERIALS 2021; 4:351-361. [PMID: 33585795 PMCID: PMC7874037 DOI: 10.1007/s42247-021-00172-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 01/24/2021] [Indexed: 05/02/2023]
Abstract
COVID-19 disease caused by the SARS-CoV-2 virus has had serious adverse effects globally in 2020 which are foreseen to extend in 2021, as well. The most important of these effects was exceeding the capacity of the healthcare infrastructures, and the related inability to meet the need for various medical equipment especially within the first months of the crisis following the emergence and rapid spreading of the virus. Urgent global demand for the previously unavailable personal protective equipment, sterile disposable medical supplies as well as the active molecules including vaccines and drugs fueled the need for the coordinated efforts of the scientific community. Amid all this confusion, the rapid prototyping technology, 3D printing, has demonstrated its competitive advantage by repositioning its capabilities to respond to the urgent need. Individual and corporate, amateur and professional all makers around the world with 3D printing capacity became united in effort to fill the gap in the supply chain until mass production is available especially for personal protective equipment and other medical supplies. Due to the unexpected, ever-changing nature of the COVID-19 pandemic-like all other potential communicable diseases-the need for rapid design and 3D production of parts and pieces as well as sterile disposable medical equipment and consumables is likely to continue to keep its importance in the upcoming years. This review article summarizes how additive manufacturing technology can contribute to such cases with special focus on the recent COVID-19 pandemic.
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Affiliation(s)
- Orcun Guvener
- Ankara University Medical Design Research and Application Center, MEDITAM, Ankara, Turkey
- Ankara University Faculty of Veterinary Medicine, Department of Anatomy, Ankara, Turkey
| | - Abdullah Eyidogan
- Ankara University Medical Design Research and Application Center, MEDITAM, Ankara, Turkey
- Ankara University Faculty of Engineering, Department of Biomedical Engineering, Ankara, Turkey
| | - Cagdas Oto
- Ankara University Medical Design Research and Application Center, MEDITAM, Ankara, Turkey
- Ankara University Faculty of Veterinary Medicine, Department of Anatomy, Ankara, Turkey
| | - Pinar Yilgor Huri
- Ankara University Medical Design Research and Application Center, MEDITAM, Ankara, Turkey
- Ankara University Faculty of Engineering, Department of Biomedical Engineering, Ankara, Turkey
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Chow L, Yick KL, Sun Y, Leung MSH, Kwan MY, Ng SP, Yu A, Yip J, Chan YF. A Novel Bespoke Hypertrophic Scar Treatment: Actualizing Hybrid Pressure and Silicone Therapies with 3D Printing and Scanning. Int J Bioprint 2021; 7:327. [PMID: 33585716 PMCID: PMC7875059 DOI: 10.18063/ijb.v7i1.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/30/2020] [Indexed: 12/02/2022] Open
Abstract
The treatment of hypertrophic scars (HSs) is considered to be the most challenging task in wound rehabilitation. Conventional silicone sheet therapy has a positive effect on the healing process of HSs. However, the dimensions of the silicone sheet are typically larger than those of the HS itself which may negatively impact the healthy skin that surrounds the HS. Furthermore, the debonding and displacement of the silicone sheet from the skin are critical problems that affect treatment compliance. Herein, we propose a bespoke HS treatment design that integrates pressure sleeve with a silicone sheet and use of silicone gel using a workflow of three-dimensional (3D) printing, 3D scanning and computer-aided design, and manufacturing software. A finite element analysis (FEA) is used to optimize the control of the pressure distribution and investigate the effects of the silicone elastomer. The result shows that the silicone elastomer increases the amount of exerted pressure on the HS and minimizes unnecessary pressure to other parts of the wrist. Based on this treatment design, a silicone elastomer that perfectly conforms to an HS is printed and attached onto a customized pressure sleeve. Most importantly, unlimited scar treating gel can be applied as the means to optimize treatment of HSs while the silicone sheet is firmly affixed and secured by the pressure sleeve.
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Affiliation(s)
- Lung Chow
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
| | - Kit-lun Yick
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
| | - Yue Sun
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
- School of Fashion Design and Engineering, Zhejiang Sci-Tech University, Hangzhou
| | - Matthew S. H. Leung
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
| | - Mei-ying Kwan
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
| | - Sun-pui Ng
- Division of Science, Engineering and Health Studies, College of Professional and Continuing Education, The Hong Kong Polytechnic University, Hong Kong
| | - Annie Yu
- Department of Advanced Fibro Science, Kyoto Institute of Technology, Japan
| | - Joanne Yip
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong
| | - Ying-fan Chan
- Department of Occupational Therapy, Prince of Wales Hospital, Hong Kong
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Kantaros A, Laskaris N, Piromalis D, Ganetsos T. Manufacturing Zero-Waste COVID-19 Personal Protection Equipment: a Case Study of Utilizing 3D Printing While Employing Waste Material Recycling. CIRCULAR ECONOMY AND SUSTAINABILITY 2021; 1:851-869. [PMID: 34888557 PMCID: PMC8084590 DOI: 10.1007/s43615-021-00047-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/19/2021] [Indexed: 04/14/2023]
Abstract
COVID-19 pandemic outbreak dictated the extensive use of personal protective equipment (PPE) by the majority of the population and mostly by frontline professionals. This need triggered a sudden demand that led to a global shortage of available PPEs threatening to have an immense contribution to the virus contamination spread. In these conditions, the need for a local, flexible, and rapid manufacturing method that would be able to cope with the increased demand for PPE fabrication arose. 3D printing proved to be such a manufacturing technique since its working principles make it an ideal technology for local, decentralized production of PPEs meeting the local demands. While considered to be more environmentally friendly than conventional fabrication techniques and aligning well with the principles of sustainability and circular economy, 3D printing can produce waste as the result of potential failed prints and material used for the fabrication of support structures. This paper describes the case of utilizing pre-existing FDM 3D printing equipment in an academic facility for the production of PPEs (face shields) and their distribution according to local demands. The plastic wastes produced were forwarded to a recycling process that led to their conversion to 3D filament that would be returned to the academic facility as raw material for future 3D printing operations. The followed procedure minimized 3D printing waste and led to a zero-waste fabrication case that was initiated in a pandemic for a greater-good cause (production of COVID-19 fighting PPEs) while assimilating the values of sustainability and circular economy.
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Affiliation(s)
- Antreas Kantaros
- Department of Industrial and Product Design Engineering, University of West Attica, Athens, Greece
| | - Nikolaos Laskaris
- Department of Industrial and Product Design Engineering, University of West Attica, Athens, Greece
| | - Dimitrios Piromalis
- Department of Industrial and Product Design Engineering, University of West Attica, Athens, Greece
| | - Theodore Ganetsos
- Department of Industrial and Product Design Engineering, University of West Attica, Athens, Greece
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