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Lubet A, Renaux-Petel M, Delbreilh L, Liard-Zmuda A, Auble A, Payen M. Conception and validation of A 3d printed learning model of supra condylar fracture of children. Heliyon 2024; 10:e30741. [PMID: 38770284 PMCID: PMC11103474 DOI: 10.1016/j.heliyon.2024.e30741] [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: 11/26/2023] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/22/2024] Open
Abstract
The supracondylar fracture of the child is a common fracture. Its physiology, physiopathology and treatment use periosteum. As far as we know, there is no 3D printed model of this typical fracture in children with periosteum. The purposes of the research are to present the concept of an educational 3D printed supra condylar model with periosteum of the child and its expert validation. Materials and methods The basis for the paediatric elbow model was a 3D scan of a four-year-old girl. Once the data had been extracted, the models were constructed using 3D Slicer®, Autodesk fusion 360® and Ultimaker Cura® software's. The Creality 3D Ender 6 SE Printer® used PLA filaments to print bone and TPU for periosteum. Printing took place at the University Hospital and the steps were modelled by hand. 3D printed bones and 3D printed periosteum were manually assembled. Participants Expert validation with twelve paediatric orthopaedic surgeons took place in three University hospitals of the North of France. Results Four Lagrange and Rigault 3D printed models of supracondylar fractures with periosteum were obtained with 200 h of design, printing and manual assembly based on a four-year-old elbow. According to the paediatric orthopaedic surgery experts, the size of the model is very good, but the model itself is of little interest compared to the information provided by the reconstruction of a 3D scanner. In total, with 9 out of 12 questions scoring higher than 8/10, the model was considered to be a good model for informing parents and teaching students. Conclusions This study details the design of the first 3D-printed supra condylar fracture model in children with a full-size physeal and periosteum. The model has been validated by paediatric orthopaedic surgery experts.
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Affiliation(s)
- Alexis Lubet
- Clinique chirurgicale infantile, CHU Charles Nicolle, 1 rue de Ger mont – 76031 Rouen cedex, France
- Groupe de Physique des Matériaux UMR 6634, Université Rouen Normandie, INSA Rouen Normandie, CNRS, 76000 Rouen, France
- Université de Rouen Normandie, 1 rue Thomas Becket, 76821 Mont-Saint-Aignan cedex, France
| | - Mariette Renaux-Petel
- Clinique chirurgicale infantile, CHU Charles Nicolle, 1 rue de Ger mont – 76031 Rouen cedex, France
- Université de Rouen Normandie, 1 rue Thomas Becket, 76821 Mont-Saint-Aignan cedex, France
| | - Laurent Delbreilh
- Groupe de Physique des Matériaux UMR 6634, Université Rouen Normandie, INSA Rouen Normandie, CNRS, 76000 Rouen, France
| | - Agnès Liard-Zmuda
- Clinique chirurgicale infantile, CHU Charles Nicolle, 1 rue de Ger mont – 76031 Rouen cedex, France
- Université de Rouen Normandie, 1 rue Thomas Becket, 76821 Mont-Saint-Aignan cedex, France
| | - Annabelle Auble
- Clinique chirurgicale infantile, CHU Charles Nicolle, 1 rue de Ger mont – 76031 Rouen cedex, France
- Université de Rouen Normandie, 1 rue Thomas Becket, 76821 Mont-Saint-Aignan cedex, France
| | - Mathilde Payen
- Clinique chirurgicale infantile, CHU Charles Nicolle, 1 rue de Ger mont – 76031 Rouen cedex, France
- Université de Rouen Normandie, 1 rue Thomas Becket, 76821 Mont-Saint-Aignan cedex, France
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Martínez-Aguilar V, Peña-Juárez MG, Carrillo-Sanchez PC, López-Zamora L, Delgado-Alvarado E, Gutierrez-Castañeda EJ, Flores-Martínez NL, Herrera-May AL, Gonzalez-Calderon JA. Evaluation of the Antioxidant and Antimicrobial Potential of SiO 2 Modified with Cinnamon Essential Oil ( Cinnamomum Verum) for Its Use as a Nanofiller in Active Packaging PLA Films. Antioxidants (Basel) 2023; 12:antiox12051090. [PMID: 37237956 DOI: 10.3390/antiox12051090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/05/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
One of the main causes of food spoilage is the lipid oxidation of its components, which generates the loss of nutrients and color, together with the invasion of pathogenic microorganisms. In order to minimize these effects, active packaging has played an important role in preservation in recent years. Therefore, in the present study, an active packaging film was developed using polylactic acid (PLA) and silicon dioxide (SiO2) nanoparticles (NPs) (0.1% w/w) chemically modified with cinnamon essential oil (CEO). For the modification of the NPs, two methods (M1 and M2) were tested, and their effects on the chemical, mechanical, and physical properties of the polymer matrix were evaluated. The results showed that CEO conferred to SiO2 NPs had a high percentage of 2,2-diphenyl-l-picrylhydrazyl (DPPH) free radical inhibition (>70%), cell viability (>80%), and strong inhibition to E. coli, at 45 and 11 µg/mL for M1 and M2, respectively, and thermal stability. Films were prepared with these NPs, and characterizations and evaluations on apple storage were performed for 21 days. The results show that the films with pristine SiO2 improved tensile strength (28.06 MPa), as well as Young's modulus (0.368 MPa) since PLA films only presented values of 27.06 MPa and 0.324 MPa, respectively; however, films with modified NPs decreased tensile strength values (26.22 and 25.13 MPa), but increased elongation at break (from 5.05% to 10.32-8.32%). The water solubility decreased from 15% to 6-8% for the films with NPs, as well as the contact angle, from 90.21° to 73° for the M2 film. The water vapor permeability increased for the M2 film, presenting a value of 9.50 × 10-8 g Pa-1 h-1 m-2. FTIR analysis indicated that the addition of NPs with and without CEO did not modify the molecular structure of pure PLA; however, DSC analysis indicated that the crystallinity of the films was improved. The packaging prepared with M1 (without Tween 80) showed good results at the end of storage: lower values in color difference (5.59), organic acid degradation (0.042), weight loss (24.24%), and pH (4.02), making CEO-SiO2 a good component to produce active packaging.
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Affiliation(s)
- Verónica Martínez-Aguilar
- Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, Sierra Leona No. 550 Col. Lomas 2da. Sección, San Luis Potosí 78210, Mexico
| | - Mariana G Peña-Juárez
- Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, Sierra Leona No. 550 Col. Lomas 2da. Sección, San Luis Potosí 78210, Mexico
| | - Perla C Carrillo-Sanchez
- Maestría en Ingeniería y Tecnología de Materiales, Universidad de La Salle Bajío, Av. Universidad 602, Lomas del Campestre, León 37150, Mexico
| | - Leticia López-Zamora
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de Méxicoen Orizaba, Oriente 9 No. 852 Emiliano Zapata, Orizaba 94320, Mexico
| | - Enrique Delgado-Alvarado
- Micro and Nanotechnology Research Center, Universidad Veracruzana, Blvd. Av. Ruiz Cortines No. 455 Fracc. Costa Verde, Boca del Río 94294, Mexico
- Facultad de Ciencias Quimicas, Universidad Veracruzana, Blvd. Av. Ruiz Cortines No. 455 Fracc. Costa Verde, Boca del Río 94294, Mexico
| | - Emmanuel J Gutierrez-Castañeda
- Cátedras CONACYT-Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 Lomas 2da Sección, San Luis Potosí 78210, Mexico
| | - Norma L Flores-Martínez
- Ingeniería Agroindustrial, Universidad Politécnica de Guanajuato, Avenida Universidad Sur #1001 Comunidad Juan Alonso, Cortazar 38496, Mexico
| | - Agustín L Herrera-May
- Micro and Nanotechnology Research Center, Universidad Veracruzana, Blvd. Av. Ruiz Cortines No. 455 Fracc. Costa Verde, Boca del Río 94294, Mexico
- Maestría en Ingeniería Aplicada, Facultad de Ingeniería de la Construcción y el Hábitat, Universidad Veracruzana, Boca del Río 94294, Mexico
| | - Jose Amir Gonzalez-Calderon
- Cátedras CONACYT-Instituto de Física, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava #64, Zona Universitaria, San Luis Potosí 78290, Mexico
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Desai SM, Sonawane RY, More AP. Thermoplastic polyurethane for three‐dimensional printing applications: A review. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Mazlan MA, Anas MA, Nor Izmin NA, Abdullah AH. Effects of Infill Density, Wall Perimeter and Layer Height in Fabricating 3D Printing Products. MATERIALS (BASEL, SWITZERLAND) 2023; 16:695. [PMID: 36676432 PMCID: PMC9867140 DOI: 10.3390/ma16020695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Three-dimensional printing is widely used in many fields, including engineering, architecture and even medical purposes. The focus of the study is to obtain the ideal weight-to-performance ratio for making a 3D-printed part. The end products of the 3D-printed part are hugely affected by not only the material but also the printing parameters. The printing parameters to be highlighted for this study are the infill density, wall perimeter and layer height, which are the commonly adjusted parameters in 3D printing. The study will be divided into two parts, the simulation analysis and the experimental analysis, to confirm both results toward the trend of Young's modulus for the material. It will then be analyzed and discussed toward any differences between the two results. The results showed that increasing the value of all three parameters will increase the tensile elasticity of the part.
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Affiliation(s)
- Mohammad Azeeb Mazlan
- College of Engineering, School of Mechanical Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Mohamad Azizi Anas
- College of Engineering, School of Mechanical Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Nor Aiman Nor Izmin
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | - Abdul Halim Abdullah
- Biomechanical & Clinical Engineering (BioMeC) Research Group, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
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Kumar S, Singh I, R. Koloor SS, Kumar D, Yahya MY. On Laminated Object Manufactured FDM-Printed ABS/TPU Multimaterial Specimens: An Insight into Mechanical and Morphological Characteristics. Polymers (Basel) 2022; 14:polym14194066. [PMID: 36236014 PMCID: PMC9573760 DOI: 10.3390/polym14194066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/05/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Fused deposition modeling (FDM) printing of commercial and reinforced filaments is a proven and well-explored method for the enhancement of mechanical properties. However, little has hitherto been reported on the multi-material components, fused or laminated together into a single specimen by using the laminated object manufacturing (LOM) technique for sustainable/renewable polymers. TPU is one such durable and flexible, sustainable material exhibiting renewable and biocompatible properties that have been explored very less often in combination with the ABS polymer matrix in a single specimen, such as the LOM specimen. The current research work presents the LOM manufacturing of 3D-printed flexural specimens of two different, widely used polymers available viz. ABS and TPU and tested as per ASTM D790 standards. The specimens were made and laminated in three layers. They were grouped into two categories, namely ABS: TPU: ABS (ATA) and TPU: ABS: TPU (TAT), which are functionally graded, sandwiched structures of polymeric material. The investigation of the flexural properties, microscopic imaging, and porosity characteristics of the specimens was made for the above categories. The results of the study suggest that ATA-based samples held larger flexural strength than TAT laminated manufactured samples. A significant improvement in the peak elongation and break elongation of the samples was achieved and has shown a 187% increase in the break elongation. Similarly, for the TAT-based specimen, flexural strength was improved significantly from approximately 6.8 MPa to 13 MPa, which represents a nearly 92% increase in the flexural strength. The morphological testing using Tool Maker’s microscopic analysis and porosity analysis has supported the observed trends of mechanical behavior of ATA and TAT samples.
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Affiliation(s)
- S. Kumar
- Department of Mechanical Engineering, CT University, Ferozepur Rd, Sidhwan Khurd, Ludhiana 142024, Punjab, India
- Correspondence: (S.K.); (S.S.R.K.)
| | - I. Singh
- Department of Mechanical Engineering, CT University, Ferozepur Rd, Sidhwan Khurd, Ludhiana 142024, Punjab, India
| | - S. S. R. Koloor
- Institute for Structural Engineering, Department of Civil Engineering and Environmental Sciences, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85579 Neubiberg, Germany
- Correspondence: (S.K.); (S.S.R.K.)
| | - D. Kumar
- Department of Mechanical Engineering, CT University, Ferozepur Rd, Sidhwan Khurd, Ludhiana 142024, Punjab, India
| | - M. Y. Yahya
- Centre for Advanced Composite Materials, Faculty of Engineering, School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
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Brancewicz-Steinmetz E, Sawicki J. Bonding and Strengthening the PLA Biopolymer in Multi-Material Additive Manufacturing. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15165563. [PMID: 36013700 PMCID: PMC9416234 DOI: 10.3390/ma15165563] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 06/01/2023]
Abstract
3D printing is a revolutionary additive manufacturing method that enables rapid prototyping and design flexibility. A variety of thermoplastic polymers can be used in printing. As it is necessary to reduce the consumption of petrochemical resources, alternative solutions are being researched, and the interest in using bioplastics and biocomposites is constantly growing. Often, however, the properties of biopolymers are insufficient and need to be improved to compete with petroleum-based plastics. The paper aims to analyze the available information on elements produced from more than one material, with additive manufacturing resulting from 3D printing using biopolymer Polylactic Acid (PLA). The study notes the possibility of modifying and improving the properties of PLA using layered printing or by modifying PLA filaments. Several modifications improving and changing the properties of PLA were also noted, including printing parameters when combined with other materials: process temperatures, filling, and surface development for various sample geometries.
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Tensile properties of 3D printed structures of polylactide with thermoplastic polyurethane. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03172-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Beniak J, Šooš Ľ, Križan P, Matúš M, Ruprich V. Resistance and Strength of Conductive PLA Processed by FDM Additive Manufacturing. Polymers (Basel) 2022; 14:polym14040678. [PMID: 35215591 PMCID: PMC8877385 DOI: 10.3390/polym14040678] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/23/2022] [Accepted: 02/04/2022] [Indexed: 02/02/2023] Open
Abstract
There is a large number of materials that can be used for FDM additive manufacturing technology. These materials have different strength properties, they are designed for different purposes. They can be highly strong or flexible, abrasion-resistant, or designed for example for environments with higher thermal loads. However recently new innovative and progressive materials have come to the practice, which include nano-composite particles, bringing new added value. One such material is the Conductive PLA material, which is capable of conducting electric current. The aim of this article is to present the material properties of this material. The article describes the design of the experiment, the process of measuring the resistance of samples printed by FDM device, measuring the maximum tensile strength of samples. The article includes a statistical evaluation of the measured data, with the determination of the significance of individual factors of the experiment as well as the evaluation of the overall result of the experiments.
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Affiliation(s)
- Juraj Beniak
- Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Nam. Slobody 17, 812 31 Bratislava, Slovakia; (Ľ.Š.); (P.K.); (M.M.)
- Correspondence:
| | - Ľubomír Šooš
- Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Nam. Slobody 17, 812 31 Bratislava, Slovakia; (Ľ.Š.); (P.K.); (M.M.)
| | - Peter Križan
- Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Nam. Slobody 17, 812 31 Bratislava, Slovakia; (Ľ.Š.); (P.K.); (M.M.)
| | - Miloš Matúš
- Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Nam. Slobody 17, 812 31 Bratislava, Slovakia; (Ľ.Š.); (P.K.); (M.M.)
| | - Vít Ruprich
- 4machines s.r.o., Studentská 6202/17, 708 00 Ostrava-Poruba, Czech Republic;
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