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Ayechu-Abendaño A, Pérez-Jiménez A, Sánchez-Matás C, López-Villalobos JL, Díaz-Jiménez C, Fernández-Parra R, Malvè M. Computational Analysis of Polymeric Biodegradable and Customizable Airway Stent Designs. Polymers (Basel) 2024; 16:1691. [PMID: 38932041 PMCID: PMC11207808 DOI: 10.3390/polym16121691] [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: 04/11/2024] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
The placement of endotracheal prostheses is a procedure used to treat tracheal lesions when no other surgical options are available. Unfortunately, this technique remains controversial. Both silicon and metallic stents are used with unpredictable success rates, as they have advantages but also disadvantages. Typical side effects include restenosis due to epithelial hyperplasia, obstruction and granuloma formation. Repeat interventions are often required. Biodegradable stents are promising in the field of cardiovascular biomechanics but are not yet approved for use in the respiratory system. The aim of the present study is to summarize important information and to evaluate the role of different geometrical features for the fabrication of a new tracheo-bronchial prosthesis prototype, which should be biodegradable, adaptable to the patient's lesion and producible by 3D printing. A parametric design and subsequent computational analysis using the finite element method is carried out. Two different stent designs are parameterized and analyzed. The biodegradable material chosen for simulations is polylactic acid. Experimental tests are conducted for assessing its mechanical properties. The role of the key design parameters on the radial force of the biodegradable prosthesis is investigated. The computational results allow us to elucidate the role of the pitch angle, the wire thickness and the number of cells or units, among other parameters, on the radial force. This work may be useful for the design of ad hoc airway stents according to the patient and type of lesion.
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Affiliation(s)
- Ada Ayechu-Abendaño
- Department of Engineering, Public University of Navarra (UPNA), Campus Arrosadía, s/n, E-31006 Pamplona, Spain; (A.A.-A.); (A.P.-J.)
| | - Aurora Pérez-Jiménez
- Department of Engineering, Public University of Navarra (UPNA), Campus Arrosadía, s/n, E-31006 Pamplona, Spain; (A.A.-A.); (A.P.-J.)
- AIN—Asociación de la Industria Navarra, Ctra. Pamplona, 1. Edif. AIN, E-31191 Cordovilla, Spain;
| | - Carmen Sánchez-Matás
- Department of Thoracic Surgery, University Hospital Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, E-30120 El Palmar, Spain;
| | - José Luis López-Villalobos
- Department of Thoracic Surgery, University Hospital Virgen del Rocío, Avenida Manuel Siurot, s/n, E-41013 Sevilla, Spain;
| | - Cristina Díaz-Jiménez
- AIN—Asociación de la Industria Navarra, Ctra. Pamplona, 1. Edif. AIN, E-31191 Cordovilla, Spain;
| | - Rocío Fernández-Parra
- Department of Small Animal Medicine and Surgery, Faculty of Veterinary Medicine, Catholic University of Valencia San Vicente Mártir, E-46001 Valencia, Spain;
| | - Mauro Malvè
- Department of Engineering, Public University of Navarra (UPNA), Campus Arrosadía, s/n, E-31006 Pamplona, Spain; (A.A.-A.); (A.P.-J.)
- Research Networking in Bioengineering, Biomaterials & Nanomedicine (CIBER-BBN), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0, E-28029 Madrid, Spain
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Subramani R, Vijayakumar P, Rusho MA, Kumar A, Shankar KV, Thirugnanasambandam AK. Selection and Optimization of Carbon-Reinforced Polyether Ether Ketone Process Parameters in 3D Printing-A Rotating Component Application. Polymers (Basel) 2024; 16:1443. [PMID: 38794636 PMCID: PMC11125095 DOI: 10.3390/polym16101443] [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: 04/07/2024] [Revised: 04/26/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
The selection of process parameters is crucial in 3D printing for product manufacturing. These parameters govern the operation of production machinery and influence the mechanical properties, production time, and other aspects of the final product. The optimal process parameter settings vary depending on the product and printing application. This study identifies the most suitable cluster of process parameters for producing rotating components, specifically impellers, using carbon-reinforced Polyether Ether Ketone (CF-PEEK) thermoplastic filament. A mathematical programming technique using a rating method was employed to select the appropriate process parameters. The research concludes that an infill density of 70%, a layer height of 0.15 mm, a printing speed of 60 mm/s, a platform temperature of 195 °C, an extruder temperature of 445 °C, and an extruder travel speed of 95 mm/s are optimal process parameters for manufacturing rotating components using carbon-reinforced PEEK material.
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Affiliation(s)
- Raja Subramani
- Center for Sustainable Materials and Surface Metamorphosis, Chennai Institute of Technology, Chennai 600069, India; (R.S.); (A.K.T.)
| | | | - Maher Ali Rusho
- Lockheed Martin Engineering Management, University of Colorado, Boulder, CO 80308, USA;
| | - Anil Kumar
- Department of Mechanical Engineering, Kamala Nehru Institute of Technology, Sultanpur 228118, India;
| | - Karthik Venkitaraman Shankar
- Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham, Amirtapuri 690525, India;
- Centre for Flexible Electronics and Advanced Materials, Amrita Vishwa Vidyapeetham, Amritapuri 690525, India
| | - Arun Kumar Thirugnanasambandam
- Center for Sustainable Materials and Surface Metamorphosis, Chennai Institute of Technology, Chennai 600069, India; (R.S.); (A.K.T.)
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Yu W, Li M, Lei W, Chen Y. FDM 3D Printing and Properties of PBAT/PLA Blends. Polymers (Basel) 2024; 16:1140. [PMID: 38675058 PMCID: PMC11054694 DOI: 10.3390/polym16081140] [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: 03/08/2024] [Revised: 04/11/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Biodegradable polylactic acid (PLA) has been widely used in fused deposition modeling (FDM) 3D printing. In order to improve its comprehensive properties in 3D printing, in this study, 0-40% content of polybutylene adipate terephthalate(PBAT) was selected to be blended with PLA in a twin-screw extruder; the resulting pellets were drawn into a homogeneous filament; then, PBAT/PLA samples were prepared by FDM 3D printing, and the effects of the dosage of PBAT on the mechanical properties, thermal behavior, surface wettability and melt flowability of the samples were investigated. The results showed that all the samples could be printed smoothly, and the ductility was slightly improved by the increase in the PBAT dosage; the thermal stability of PLA was enhanced by blending with PBAT, and the crystallinity increased monotonically with the increase in PBAT. After blending with PBAT, the surfaces of the samples were more hydrophilic and flowable. The important conclusion achieved in this work was that the PBAT/PLA blends, especially those containing 30%PBAT, showed great potential to replace petroleum-based plastics and are suitable for use in FDM 3D printing technologies for different applications.
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Affiliation(s)
- Wangwang Yu
- School of Mechanical Engineering, Nanjing Vocational University of Industry Technology, Nanjing 210023, China
- Jiangsu Province Precision Manufacturing Engineering and Technology Research Center, Nanjing 210023, China
| | - Mengya Li
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Wen Lei
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Yong Chen
- College of Science, Nanjing Forestry University, Nanjing 210037, China
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4
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Golubović Z, Bojović B, Kirin S, Milovanović A, Petrov L, Anđelković B, Sofrenić I. Effect of Aging on Tensile and Chemical Properties of Polylactic Acid and Polylactic Acid-Like Polymer Materials for Additive Manufacturing. Polymers (Basel) 2024; 16:1035. [PMID: 38674955 PMCID: PMC11053981 DOI: 10.3390/polym16081035] [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: 03/06/2024] [Revised: 03/30/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Additive manufacturing, with its fast development and application of polymeric materials, led to the wide utilization of polylactic acid (PLA) materials. As a biodegradable and biocompatible aliphatic polyester, produced from renewable sources, PLA is widely used in different sectors, from industry to medicine and science. The aim of this research is to determine the differences between two forms of the PLA material, i.e., fused deposition modeling (FDM) printed filament and digital light processing (DLP) printed resin, followed by aging due to environmental and hygiene maintenance conditions for a period of two months. Specimens underwent 3D scanning, tensile testing, and Fourier transform infrared (FTIR) spectrometry to obtain insights into the material changes that occurred. Two-way Analysis of Variance (ANOVA) statistical analysis was subsequently carried out to determine the statistical significance of the determined changes. Significant impairment can be observed in the dimensional accuracies between both materials, whether they are non-aged or aged. The mechanical properties fluctuated for aged FDM specimens: 15% for ultimate tensile stress, 15% for elongation at yield, and 12% for elastic modulus. Regarding the DLP aged specimens, the UTS decreased by 61%, elongation at yield by around 61%, and elastic modulus by 62%. According to the FTIR spectral analysis, the PLA materials degraded, especially in the case of resin specimens. Aging also showed a significant influence on the elastic modulus, ultimate tensile stress, elongation at yield, elongation at break, and toughness of both materials, which was statistically shown by means of a two-way ANOVA test. The data collected in this research give a better understanding of the underlying aging mechanism of PLA materials.
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Affiliation(s)
- Zorana Golubović
- Faculty of Mechanical Engineering, University of Belgrade, 11120 Belgrade, Serbia
| | - Božica Bojović
- Faculty of Mechanical Engineering, University of Belgrade, 11120 Belgrade, Serbia
| | - Snežana Kirin
- Innovation Center of Faculty of Mechanical Engineering, 11120 Belgrade, Serbia
| | - Aleksa Milovanović
- Innovation Center of Faculty of Mechanical Engineering, 11120 Belgrade, Serbia
| | - Ljubiša Petrov
- Innovation Center of Faculty of Mechanical Engineering, 11120 Belgrade, Serbia
| | - Boban Anđelković
- Faculty of Chemistry, University of Belgrade, 11158 Belgrade, Serbia
| | - Ivana Sofrenić
- Faculty of Chemistry, University of Belgrade, 11158 Belgrade, Serbia
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Rathna RP, Kulandhaivel M. Advancements in wound healing: integrating biomolecules, drug delivery carriers, and targeted therapeutics for enhanced tissue repair. Arch Microbiol 2024; 206:199. [PMID: 38563993 DOI: 10.1007/s00203-024-03910-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 04/04/2024]
Abstract
Wound healing, a critical biological process vital for tissue restoration, has spurred a global market exceeding $15 billion for wound care products and $12 billion for scar treatment. Chronic wounds lead to delayed or impaired wound healing. Natural bioactive compounds, prized for minimal side effects, stand out as promising candidates for effective wound healing. In response, researchers are turning to nanotechnology, employing the encapsulation of these agents into drug delivery carriers. Drug delivery system will play a crucial role in enabling targeted delivery of therapeutic agents to promote tissue regeneration and address underlying issues such as inflammation, infection, and impaired angiogenesis in chronic wound healing. Drug delivery carriers offer distinct advantages, exhibiting a substantial ratio of surface area to volume and altered physical and chemical properties. These carriers facilitate sustained and controlled release, proving particularly advantageous for the extended process of wound healing, that typically comprise a diverse range of components, integrating both natural and synthetic polymers. Additionally, they often incorporate bioactive molecules. Despite their properties, including poor solubility, rapid degradation, and limited bioavailability, various natural bioactive agents face challenges in clinical applications. With a global research, emphasis on harnessing nanomaterial for wound healing application, this research overview engages advancing drug delivery technologies to augment the effectiveness of tissue regeneration using bioactive molecules. Recent progress in drug delivery has poised to enhance the therapeutic efficacy of natural compounds in wound healing applications.
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Affiliation(s)
- R Preethi Rathna
- Department of Microbiology, Karpagam Academy of Higher Education, Coimbatore, Tamilnadu, 641021, India
| | - M Kulandhaivel
- Department of Microbiology, Karpagam Academy of Higher Education, Coimbatore, Tamilnadu, 641021, India.
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Jiao H, Ali SS, Alsharbaty MHM, Elsamahy T, Abdelkarim E, Schagerl M, Al-Tohamy R, Sun J. A critical review on plastic waste life cycle assessment and management: Challenges, research gaps, and future perspectives. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115942. [PMID: 38218104 DOI: 10.1016/j.ecoenv.2024.115942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/12/2023] [Accepted: 01/03/2024] [Indexed: 01/15/2024]
Abstract
The global production and consumption of plastics, as well as their deposition in the environment, are experiencing exponential growth. In addition, mismanaged plastic waste (PW) losses into drainage channels are a growing source of microplastic (MP) pollution concern. However, the complete understanding of their environmental implications throughout their life cycle is yet to be fully understood. Determining the potential extent to which MPs contribute to overall ecotoxicity is possible through the monitoring of PW release and MP removal during remediation. Life cycle assessments (LCAs) have been extensively utilized in many comparative analyses, such as comparing petroleum-based plastics with biomass and single-use plastics with multi-use alternatives. These assessments typically yield unexpected or paradoxical results. Nevertheless, there is still a paucity of reliable data and tools for conducting LCAs on plastics. On the other hand, the release and impact of MP have so far not been considered in LCA studies. This is due to the absence of inventory-related data regarding MP releases and the characterization factors necessary to quantify the effects of MP. Therefore, this review paper conducts a comprehensive literature review in order to assess the current state of knowledge and data regarding the environmental impacts that occur throughout the life cycle of plastics, along with strategies for plastic management through LCA.
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Affiliation(s)
- Haixin Jiao
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Mohammed Husssein M Alsharbaty
- Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq; Branch of Prosthodontics, College of Dentistry, University of Al-Ameed, Karbala, Iraq.
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Esraa Abdelkarim
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Michael Schagerl
- Department of Functional and Evolutionary Ecology, University of Vienna, Djerassiplatz 1, Vienna A-1030, Austria.
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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7
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Matei S, Pop MA, Zaharia SM, Coșniță M, Croitoru C, Spîrchez C, Cazan C. Investigation into the Acoustic Properties of Polylactic Acid Sound-Absorbing Panels Manufactured by 3D Printing Technology: The Influence of Nozzle Diameters and Internal Configurations. MATERIALS (BASEL, SWITZERLAND) 2024; 17:580. [PMID: 38591429 PMCID: PMC10856160 DOI: 10.3390/ma17030580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 04/10/2024]
Abstract
Sound-absorbing panels are widely used in the acoustic design of aircraft parts, buildings and vehicles as well as in sound insulation and absorption in areas with heavy traffic. This paper studied the acoustic properties of sound-absorbing panels manufactured with three nozzle diameters (0.4 mm, 0.6 mm and 0.8 mm) by 3D printing from three types of polylactic acid filaments (Grey Tough PLA; Black PLA Pro; Natural PLA) and with six internal configurations with labyrinthine zigzag channels (Z1 and Z2). The absorption coefficient of the sample with the Z2 pattern, a 5.33 mm height, a 0.6 mm nozzle diameter and with Black PLA Pro showed the maximum value (α = 0.93) for the nozzle diameter of 0.6 mm. Next in position were the three samples with the Z1 pattern (4 mm height) made from all three materials used and printed with a nozzle diameter of 0.4 mm with a sound absorption coefficient value (α = 0.91) at 500 Hz. The highest value of the sound transmission loss (56 dB) was found for the sample printed with a nozzle size of 0.8 mm with the Z2 pattern (8 mm height) and with Black PLA Pro. The extruded material, the nozzle diameter and the internal configuration had a significant impact on the acoustic performance of the 3D-printed samples.
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Affiliation(s)
- Simona Matei
- Department of Materials Science, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - Mihai Alin Pop
- Department of Materials Science, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - Sebastian-Marian Zaharia
- Department of Manufacturing Engineering, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - Mihaela Coșniță
- Department of Product Design, Mechatronics and Environment, Transilvania University of Brasov, 500036 Brasov, Romania; (M.C.); (C.C.)
| | - Cătălin Croitoru
- Materials Engineering and Welding Department, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - Cosmin Spîrchez
- Wood Processing and Design Wooden Product Department, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - Cristina Cazan
- Department of Product Design, Mechatronics and Environment, Transilvania University of Brasov, 500036 Brasov, Romania; (M.C.); (C.C.)
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Shan Y, Shen Z, Lu Y, Zhu J, Sun F, Chen W, Yuan L, Shi H. Reconstruction of tracheal window-shape defect by 3D printed polycaprolatone scaffold coated with Silk Fibroin Methacryloyl. Biotechnol J 2024; 19:e2300040. [PMID: 37985427 DOI: 10.1002/biot.202300040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 10/07/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
In this study, we aimed to utilize autologous tracheal epithelia and BMSCs as the seeding cells, utilize PCL coated with SilMA as the hybrid scaffold to carry the cells and KGN, which can selectively stimulate chondrogenic differentiation of BMSCs. This hybrid tracheal substitution was carried out to repair the tracheal partial window-shape defect. Firstly, SilMA with the concentration of 10%, 15% and 20% was prepared, and the experiment of swelling and degradation was performed. With the increase of the concentration, the swelling ratio of SilMA decreased, and the degradation progress slowed down. Upon the result of CCK-8 test and HE staining of 3D co-culture, the SilMA with concentration of 20% was selected. Next, SilMA and the cells attached to SilMA were characterized by SEM. Furthermore, in vitro cytotoxicity test shows that 20% SilMA has good cytocompatibility. The hybrid scaffold was then made by PCL coated with 20% SilMA. The mechanical test shows this hybrid scaffold has better biomechanical properties than native trachea. In vivo tracheal defect repair assays were conducted to evaluate the effect of the hybrid substitution. H&E staining, IHC staining and IF staining showed that this hybrid substitution ensured the viability, proliferation and migration of epithelium. However, it is sad that the results of chondrogenesis were not obvious. This study is expected to provide new strategies for the fields of tracheal replacement therapy needing mechanical properties and epithelization.
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Affiliation(s)
- Yibo Shan
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Zhiming Shen
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Yi Lu
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Jianwei Zhu
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Fei Sun
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Wenxuan Chen
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Lei Yuan
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
| | - Hongcan Shi
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
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Shabbak A, Masoumkhani F, Fallah A, Amani-Beni R, Mohammadpour H, Shahbazi T, Bakhshi A. 3D Printing for Cardiovascular Surgery and Intervention: A Review Article. Curr Probl Cardiol 2024; 49:102086. [PMID: 37716537 DOI: 10.1016/j.cpcardiol.2023.102086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/18/2023]
Abstract
3D printing technology can be applied to practically every aspect of modern life, fulfilling the needs of people from various backgrounds. The utilization of 3D printing in the context of adult heart disease can be succinctly categorized into 3 primary domains: preoperative strategizing or simulation, medical instruction, and clinical consultations. 3D-printed model utilization improves surgical planning and intraoperative decision-making and minimizes surgical risks, and it has demonstrated its efficacy as an innovative educational tool for aspiring surgeons with limited practical exposure. Despite all the applications of 3D printing, it has not yet been shown to improve long-term outcomes, including safety. There are no data on the outcomes of controlled trials available. To appropriately diagnose heart disease, 3D-printed models of the heart can provide a better understanding of the intracardiac anatomy and provide all the information needed for operative planning. Experientially, 3D printing provides a wide range of perceptions for understanding lower extremity arteries' spatial geometry and anatomical features of pathology. Practicing cardiac surgery processes using objects printed using 3D imaging data can become the norm rather than the exception, leading to improved accuracy and quality of treatment. This study aimed to review the various applications of 3D printing technology in cardiac surgery and intervention.
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Affiliation(s)
- Ali Shabbak
- Research Committee, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Fateme Masoumkhani
- Department of cardiology, Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Amir Fallah
- Research Committee, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Reza Amani-Beni
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hanieh Mohammadpour
- Research Committee, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Taha Shahbazi
- Neurosurgery Research Group (NRG), Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Arash Bakhshi
- Remember of Research Committee, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
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Barchiki F, Fracaro L, Dominguez AC, Senegaglia AC, Vaz IM, Soares P, de Moura SAB, Brofman PRS. Biocompatibility of ABS and PLA Polymers with Dental Pulp Stem Cells Enhance Their Potential Biomedical Applications. Polymers (Basel) 2023; 15:4629. [PMID: 38139880 PMCID: PMC10747830 DOI: 10.3390/polym15244629] [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: 10/30/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Polylactic Acid (PLA) and Acrylonitrile-Butadiene-Styrene (ABS) are commonly used polymers in 3D printing for biomedical applications. Dental Pulp Stem Cells (DPSCs) are an accessible and proliferative source of stem cells with significant differentiation potential. Limited knowledge exists regarding the biocompatibility and genetic safety of ABS and PLA when in contact with DPSCs. This study aimed to investigate the impact of PLA and ABS on the adhesion, proliferation, osteogenic differentiation, genetic stability, proteomics, and immunophenotypic profile of DPSCs. A total of three groups, 1- DPSC-control, 2- DPSC+ABS, and 3- DPSC+PLA, were used in in vitro experiments to evaluate cell morphology, proliferation, differentiation capabilities, genetic stability, proteomics (secretome), and immunophenotypic profiles regarding the interaction between DPSCs and polymers. Both ABS and PLA supported the adhesion and proliferation of DPSCs without exhibiting significant cytotoxic effects and maintaining the capacity for osteogenic differentiation. Genetic stability, proteomics, and immunophenotypic profiles were unaltered in DPSCs post-contact with these polymers, highlighting their biosafety. Our findings suggest that ABS and PLA are biocompatible with DPSCs and demonstrate potential in dental or orthopedic applications; the choice of the polymer will depend on the properties required in treatment. These promising results stimulate further studies to explore the potential therapeutic applications in vivo using prototyped polymers in personalized medicine.
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Affiliation(s)
- Fabiane Barchiki
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil; (L.F.); (A.C.S.); (I.M.V.); (P.R.S.B.)
- INCT—REGENERA National Institute of Science and Technology in Regenerative Medicine, Rio de Janeiro 21941-902, Brazil
| | - Letícia Fracaro
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil; (L.F.); (A.C.S.); (I.M.V.); (P.R.S.B.)
- INCT—REGENERA National Institute of Science and Technology in Regenerative Medicine, Rio de Janeiro 21941-902, Brazil
| | - Alejandro Correa Dominguez
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-PR, Curitiba 81350-010, Brazil;
| | - Alexandra Cristina Senegaglia
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil; (L.F.); (A.C.S.); (I.M.V.); (P.R.S.B.)
- INCT—REGENERA National Institute of Science and Technology in Regenerative Medicine, Rio de Janeiro 21941-902, Brazil
| | - Isadora May Vaz
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil; (L.F.); (A.C.S.); (I.M.V.); (P.R.S.B.)
- INCT—REGENERA National Institute of Science and Technology in Regenerative Medicine, Rio de Janeiro 21941-902, Brazil
| | - Paulo Soares
- LaBES—Laboratory of Biomaterials and Surface Engineering, Polytechnic School, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil;
| | - Sérgio Adriane Bezerra de Moura
- Departament of Morphology, Campus Universitário Lagoa Nova, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59072-970, Brazil;
| | - Paulo Roberto Slud Brofman
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba 80215-901, Brazil; (L.F.); (A.C.S.); (I.M.V.); (P.R.S.B.)
- INCT—REGENERA National Institute of Science and Technology in Regenerative Medicine, Rio de Janeiro 21941-902, Brazil
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11
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Alzoubi L, Aljabali AAA, Tambuwala MM. Empowering Precision Medicine: The Impact of 3D Printing on Personalized Therapeutic. AAPS PharmSciTech 2023; 24:228. [PMID: 37964180 DOI: 10.1208/s12249-023-02682-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
This review explores recent advancements and applications of 3D printing in healthcare, with a focus on personalized medicine, tissue engineering, and medical device production. It also assesses economic, environmental, and ethical considerations. In our review of the literature, we employed a comprehensive search strategy, utilizing well-known databases like PubMed and Google Scholar. Our chosen keywords encompassed essential topics, including 3D printing, personalized medicine, nanotechnology, and related areas. We first screened article titles and abstracts and then conducted a detailed examination of selected articles without imposing any date limitations. The articles selected for inclusion, comprising research studies, clinical investigations, and expert opinions, underwent a meticulous quality assessment. This methodology ensured the incorporation of high-quality sources, contributing to a robust exploration of the role of 3D printing in the realm of healthcare. The review highlights 3D printing's potential in healthcare, including customized drug delivery systems, patient-specific implants, prosthetics, and biofabrication of organs. These innovations have significantly improved patient outcomes. Integration of nanotechnology has enhanced drug delivery precision and biocompatibility. 3D printing also demonstrates cost-effectiveness and sustainability through optimized material usage and recycling. The healthcare sector has witnessed remarkable progress through 3D printing, promoting a patient-centric approach. From personalized implants to radiation shielding and drug delivery systems, 3D printing offers tailored solutions. Its transformative applications, coupled with economic viability and sustainability, have the potential to revolutionize healthcare. Addressing material biocompatibility, standardization, and ethical concerns is essential for responsible adoption.
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Affiliation(s)
- Lorca Alzoubi
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Yarmouk University, P.O. Box 566, Irbid, 21163, Jordan
| | - Alaa A A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, P.O. Box 566, Irbid, 21163, Jordan.
| | - Murtaza M Tambuwala
- Lincoln Medical School, Brayford Pool Campus, University of Lincoln, Lincoln, LN6 7TS, UK.
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12
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Yu W, Sun L, Li M, Li M, Lei W, Wei C. FDM 3D Printing and Properties of PBS/PLA Blends. Polymers (Basel) 2023; 15:4305. [PMID: 37959985 PMCID: PMC10649279 DOI: 10.3390/polym15214305] [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: 09/22/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
Poly(lactic acid) (PLA) and Poly(butylene succinate) (PBS) were chosen as raw materials and melt blended by a twin screw extruder and pelletized; then, the pellets were extruded into filaments; after that, various PBS/PLA blending samples were prepared by Fused Deposition Molding (FDM) 3D printing technology using the filaments obtained and the effect of the dosage of PBS on technological properties of 3D-printed specimens was investigated. For comparison, the PLA specimen was also prepared by FDM printing. The tensile strength, tensile modulus, thermal stability, and hydrophilicity became poorer with increasing the dosage of PBS, while the flexural strength, flexural modulus, impact strength, and crystallinity increased first and then decreased. The blend containing 10% PBS (10% PBS/PLA) had the greatest flexural strength of 60.12 MPa, tensile modulus of 2360.04 MPa, impact strength of 89.39 kJ/m2, and crystallinity of 7.4%, which were increased by 54.65%, 61.04%, 14.78%, and 51.02% compared to those of printed PLA, respectively; this blend also absorbed the least water than any other specimen when immersed in water. Different from the transparent PLA filament, 10% PBS/PLA filament presented a milky white appearance. The printed 10% PBS/PLA specimen had a smooth surface, while the surface of the printed PLA was rough. All the results indicated that the printed 10% PBS/PLA specimen had good comprehensive properties, including improved mechanical properties, crystallization performance, and surface quality than PLA, as well as proper wettability and water absorption. The prominent conclusion achieved in this work was that 10% PBS/PLA should be an ideal candidate for biodegradable feedstock among all the PBS/PLA blends for FDM 3D printing.
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Affiliation(s)
- Wangwang Yu
- School of Mechanical Engineering, Nanjing Vocational University of Industry Technology, Nanjing 210023, China
| | - Liwei Sun
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Mengya Li
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Meihui Li
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Wen Lei
- College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Chaohui Wei
- College of Science, Nanjing Forestry University, Nanjing 210037, China
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13
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Cruz RMS, Albertos I, Romero J, Agriopoulou S, Varzakas T. Innovations in Food Packaging for a Sustainable and Circular Economy. ADVANCES IN FOOD AND NUTRITION RESEARCH 2023; 108:135-177. [PMID: 38460998 DOI: 10.1016/bs.afnr.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2024]
Abstract
Packaging is fundamental to maintaining the quality of food, but its contribution with a negative footprint to the environment must be completely changed worldwide to reduce pollution and climate change. Innovative and sustainable packaging and new strategies of reutilization are necessary to reduce plastic waste accumulation, maintain food quality and safety, and reduce food losses and waste. The purpose of this chapter is to present innovations in food packaging for a sustainable and circular economy. First, to present the eco-design packaging approach as well as new strategies for recycled or recyclable materials in food packaging. Second, to show current trends in new packaging materials developed from the use of agro-industrial wastes as well as new methods of production, including 3D/4D printing, electrostatic spinning, and the use of nanomaterials.
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Affiliation(s)
- Rui M S Cruz
- Department of Food Engineering, Institute of Engineering, Universidade do Algarve, Campus da Penha, Faro, Portugal; MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE-Global Change and Sustainability Institute, Faculty of Sciences and Technology, Campus de Gambelas, Universidade do Algarve, Faro, Portugal.
| | - Irene Albertos
- Nursing Department, Nursing Faculty, University of Valladolid, Valladolid, Spain
| | - Janira Romero
- Faculty of Sciences and Art, Universidad Católica de Ávila (UCAV), Calle Canteros s/n, Ávila, Spain
| | - Sofia Agriopoulou
- Department of Food Science and Technology, University of Peloponnese, Tripoli, Greece
| | - Theodoros Varzakas
- Department of Food Science and Technology, University of Peloponnese, Tripoli, Greece
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14
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Hidalgo-Carvajal D, Muñoz ÁH, Garrido-González JJ, Carrasco-Gallego R, Alcázar Montero V. Recycled PLA for 3D Printing: A Comparison of Recycled PLA Filaments from Waste of Different Origins after Repeated Cycles of Extrusion. Polymers (Basel) 2023; 15:3651. [PMID: 37688276 PMCID: PMC10490016 DOI: 10.3390/polym15173651] [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: 07/31/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/10/2023] Open
Abstract
The objective of this work is to evaluate the reprocessing of PLA 3D printing waste from different origins, into filaments and films, and without the addition of any additive. Two types of waste were considered: a blend of different printing wastes (masks, visors, other components) of personal protective equipment coming from an association of Spanish coronamakers, and PLA waste from a single known commercial source. Both types of materials were subjected to repeated extrusion cycles and processed into films by compression molding. Samples were characterized after each cycle and their mechanical and viscosity properties evaluated. Diffusion-ordered NMR spectroscopy (DOSY) experiments were also carried out to estimate molecular weights. The results show a better performance for the PLA waste from the known origin, capable of withstanding up to three re-extrusion cycles per two for the waste blending, without significant degradation. Additionally, a model to address collection and mechanical recycling cycles under two different scenarios (full traceability and not full traceability) was proposed.
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Affiliation(s)
- David Hidalgo-Carvajal
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006 Madrid, Spain (R.C.-G.)
| | - Álvaro Hortal Muñoz
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006 Madrid, Spain (R.C.-G.)
- Dirección de Compras Industrial y Cliente, Repsol, 28006 Madrid, Spain
| | | | - Ruth Carrasco-Gallego
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006 Madrid, Spain (R.C.-G.)
| | - Victoria Alcázar Montero
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006 Madrid, Spain (R.C.-G.)
- Grupo de Investigación Polímeros, Caracterización y Aplicaciones (POLCA), 28006 Madrid, Spain
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15
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Munir N, McMorrow R, Mulrennan K, Whitaker D, McLoone S, Kellomäki M, Talvitie E, Lyyra I, McAfee M. Interpretable Machine Learning Methods for Monitoring Polymer Degradation in Extrusion of Polylactic Acid. Polymers (Basel) 2023; 15:3566. [PMID: 37688192 PMCID: PMC10489772 DOI: 10.3390/polym15173566] [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: 07/07/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
This work investigates real-time monitoring of extrusion-induced degradation in different grades of PLA across a range of process conditions and machine set-ups. Data on machine settings together with in-process sensor data, including temperature, pressure, and near-infrared (NIR) spectra, are used as inputs to predict the molecular weight and mechanical properties of the product. Many soft sensor approaches based on complex spectral data are essentially 'black-box' in nature, which can limit industrial acceptability. Hence, the focus here is on identifying an optimal approach to developing interpretable models while achieving high predictive accuracy and robustness across different process settings. The performance of a Recursive Feature Elimination (RFE) approach was compared to more common dimension reduction and regression approaches including Partial Least Squares (PLS), iterative PLS (i-PLS), Principal Component Regression (PCR), ridge regression, Least Absolute Shrinkage and Selection Operator (LASSO), and Random Forest (RF). It is shown that for medical-grade PLA processed under moisture-controlled conditions, accurate prediction of molecular weight is possible over a wide range of process conditions and different machine settings (different nozzle types for downstream fibre spinning) with an RFE-RF algorithm. Similarly, for the prediction of yield stress, RFE-RF achieved excellent predictive performance, outperforming the other approaches in terms of simplicity, interpretability, and accuracy. The features selected by the RFE model provide important insights to the process. It was found that change in molecular weight was not an important factor affecting the mechanical properties of the PLA, which is primarily related to the pressure and temperature at the latter stages of the extrusion process. The temperature at the extruder exit was also the most important predictor of degradation of the polymer molecular weight, highlighting the importance of accurate melt temperature control in the process. RFE not only outperforms more established methods as a soft sensor method, but also has significant advantages in terms of computational efficiency, simplicity, and interpretability. RFE-based soft sensors are promising for better quality control in processing thermally sensitive polymers such as PLA, in particular demonstrating for the first time the ability to monitor molecular weight degradation during processing across various machine settings.
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Affiliation(s)
- Nimra Munir
- Centre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland;
- Centre for Precision Engineering, Materials and Manufacturing (PEM Centre), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland
| | - Ross McMorrow
- Department of Mechatronic Engineering, Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland;
| | - Konrad Mulrennan
- Centre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland;
- Centre for Precision Engineering, Materials and Manufacturing (PEM Centre), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland
| | - Darren Whitaker
- Perceptive Engineering-An Applied Materials Company, Keckwick Lane, Daresbury WA4 4AB, UK;
| | - Seán McLoone
- Centre for Intelligent Autonomous Manufacturing Systems, Queen’s University Belfast, Belfast BT7 1NN, UK;
| | - Minna Kellomäki
- Biomaterials and Tissue Engineering Group, Faculty of Medicine and Health Technology, BioMediTech, Tampere University, 33720 Tampere, Finland; (M.K.); (E.T.); (I.L.)
| | - Elina Talvitie
- Biomaterials and Tissue Engineering Group, Faculty of Medicine and Health Technology, BioMediTech, Tampere University, 33720 Tampere, Finland; (M.K.); (E.T.); (I.L.)
| | - Inari Lyyra
- Biomaterials and Tissue Engineering Group, Faculty of Medicine and Health Technology, BioMediTech, Tampere University, 33720 Tampere, Finland; (M.K.); (E.T.); (I.L.)
| | - Marion McAfee
- Centre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland;
- Centre for Precision Engineering, Materials and Manufacturing (PEM Centre), Atlantic Technological University, ATU Sligo, Ash Lane, F91 YW50 Sligo, Ireland
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16
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Castañeda-Rodríguez S, González-Torres M, Ribas-Aparicio RM, Del Prado-Audelo ML, Leyva-Gómez G, Gürer ES, Sharifi-Rad J. Recent advances in modified poly (lactic acid) as tissue engineering materials. J Biol Eng 2023; 17:21. [PMID: 36941601 PMCID: PMC10029204 DOI: 10.1186/s13036-023-00338-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/07/2023] [Indexed: 03/23/2023] Open
Abstract
As an emerging science, tissue engineering and regenerative medicine focus on developing materials to replace, restore or improve organs or tissues and enhancing the cellular capacity to proliferate, migrate and differentiate into different cell types and specific tissues. Renewable resources have been used to develop new materials, resulting in attempts to produce various environmentally friendly biomaterials. Poly (lactic acid) (PLA) is a biopolymer known to be biodegradable and it is produced from the fermentation of carbohydrates. PLA can be combined with other polymers to produce new biomaterials with suitable physicochemical properties for tissue engineering applications. Here, the advances in modified PLA as tissue engineering materials are discussed in light of its drawbacks, such as biological inertness, low cell adhesion, and low degradation rate, and the efforts conducted to address these challenges toward the design of new enhanced alternative biomaterials.
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Affiliation(s)
- Samanta Castañeda-Rodríguez
- Conacyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación, Ciudad de Mexico, Mexico
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Ciudad de Mexico, Mexico
| | - Maykel González-Torres
- Conacyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación, Ciudad de Mexico, Mexico.
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Ciudad de Mexico, Mexico.
| | - Rosa María Ribas-Aparicio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Ciudad de Mexico, Mexico
| | | | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Eda Sönmez Gürer
- Faculty of Pharmacy, Department of Pharmacognosy, Sivas Cumhuriyet University, Sivas, Turkey
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