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Kaveti R, Lee JH, Youn JK, Jang TM, Han WB, Yang SM, Shin JW, Ko GJ, Kim DJ, Han S, Kang H, Bandodkar AJ, Kim HY, Hwang SW. Soft, Long-Lived, Bioresorbable Electronic Surgical Mesh with Wireless Pressure Monitor and On-Demand Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307391. [PMID: 37770105 DOI: 10.1002/adma.202307391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/02/2023] [Indexed: 10/03/2023]
Abstract
Current research in the area of surgical mesh implants is somewhat limited to traditional designs and synthesis of various mesh materials, whereas meshes with multiple functions may be an effective approach to address long-standing challenges including postoperative complications. Herein, a bioresorbable electronic surgical mesh is presented that offers high mechanical strength over extended timeframes, wireless post-operative pressure monitoring, and on-demand drug delivery for the restoration of tissue structure and function. The study of materials and mesh layouts provides a wide range of tunability of mechanical and biochemical properties. Dissolvable dielectric composite with porous structure in a pyramidal shape enhances sensitivity of a wireless capacitive pressure sensor, and resistive microheaters integrated with inductive coils provide thermo-responsive drug delivery system for an antibacterial agent. In vivo evaluations demonstrate reliable, long-lived operation, and effective treatment for abdominal hernia defects, by clear evidence of suppressed complications such as adhesion formation and infections.
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Affiliation(s)
- Rajaram Kaveti
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Joong Hoon Lee
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- SK Hynix Co., Ltd., 2091, Gyeongchung-daero, Bubal-eup, Incheon, Gyeonggi-do, 17336, Republic of Korea
| | - Joong Kee Youn
- Department of Pediatric Surgery, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Tae-Min Jang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Won Bae Han
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Seung Min Yang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- Hanwha Systems Co., Ltd., 188, Pangyoyeok-Ro, Bundang-Gu, Seongnam-si, Gyeonggi-do, 13524, Republic of Korea
| | - Jeong-Woong Shin
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Gwan-Jin Ko
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Dong-Je Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Sungkeun Han
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Heeseok Kang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Amay J Bandodkar
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA
- Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST), North Carolina State University, Raleigh, NC, 27606, USA
| | - Hyun-Young Kim
- Department of Pediatric Surgery, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Suk-Won Hwang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- Department of Integrative Energy Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
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Xu Y, Saiding Q, Zhou X, Wang J, Cui W, Chen X. Electrospun fiber-based immune engineering in regenerative medicine. SMART MEDICINE 2024; 3:e20230034. [PMID: 39188511 PMCID: PMC11235953 DOI: 10.1002/smmd.20230034] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/26/2024] [Indexed: 08/28/2024]
Abstract
Immune engineering, a burgeoning field within regenerative medicine, involves a spectrum of strategies to optimize the intricate interplay between tissue regenerative biomaterials and the host tissue. These strategies are applied across different types of biomaterials and various disease models, which encompasses finely modulating the immune response at the levels of immune cells and factors, aiming to mitigate adverse effects like fibrosis and persistent inflammation that may arise at the injury site and consequently promote tissue regeneration. With the continuous progress in electrospinning technology, the immunoregulatory capabilities of electrospun fibers have gained substantial attention over the years. Electrospun fibers, with their extracellular matrix-like characteristics, high surface-area-to-volume ratio, and reliable pharmaceutical compound capacity, have emerged as key players among tissue engineering materials. This review specifically focuses on the role of electrospun fiber-based immune engineering, emphasizing their unique design strategies. Notably, electrospinning actively engages in immune engineering by modulating immune responses through four essential strategies: (i) surface modification, (ii) drug loading, (iii) physicochemical parameters, and (iv) biological grafting. This review presents a comprehensive overview of the intricate mechanisms of the immune system in injured tissues while unveiling the key strategies adopted by electrospun fibers to orchestrate immune regulation. Furthermore, the review explores the current developmental trends and limitations concerning the immunoregulatory function of electrospun fibers, aiming to drive the advancements in electrospun fiber-based immune engineering to its full potential.
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Affiliation(s)
- Yiru Xu
- The International Peace Maternity and Child Health HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
- Shanghai Key Laboratory of Embryo Original DiseasesShanghaiChina
| | - Qimanguli Saiding
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xue Zhou
- The International Peace Maternity and Child Health HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
- Shanghai Key Laboratory of Embryo Original DiseasesShanghaiChina
| | - Juan Wang
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Wenguo Cui
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xinliang Chen
- The International Peace Maternity and Child Health HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
- Shanghai Key Laboratory of Embryo Original DiseasesShanghaiChina
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3
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Najm A, Niculescu AG, Rădulescu M, Gaspar BS, Grumezescu AM, Beuran M. Novel Material Optimization Strategies for Developing Upgraded Abdominal Meshes. Int J Mol Sci 2023; 24:14298. [PMID: 37762601 PMCID: PMC10531784 DOI: 10.3390/ijms241814298] [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: 08/29/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Over 20 million hernias are operated on globally per year, with most interventions requiring mesh reinforcement. A wide range of such medical devices are currently available on the market, most fabricated from synthetic polymers. Yet, searching for an ideal mesh is an ongoing process, with continuous efforts directed toward developing upgraded implants by modifying existing products or creating innovative systems from scratch. In this regard, this review presents the most frequently employed polymers for mesh fabrication, outlining the market available products and their relevant characteristics, further focusing on the state-of-the-art mesh approaches. Specifically, we mainly discuss recent studies concerning coating application, nanomaterials addition, stem cell seeding, and 3D printing of custom mesh designs.
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Affiliation(s)
- Alfred Najm
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.N.); (B.S.G.); (M.B.)
- Emergency Hospital Floreasca Bucharest, 014461 Bucharest, Romania
| | - Adelina-Gabriela Niculescu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Marius Rădulescu
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Politehnica University of Bucharest, 011061 Bucharest, Romania;
| | - Bogdan Severus Gaspar
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.N.); (B.S.G.); (M.B.)
- Emergency Hospital Floreasca Bucharest, 014461 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania;
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
| | - Mircea Beuran
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.N.); (B.S.G.); (M.B.)
- Emergency Hospital Floreasca Bucharest, 014461 Bucharest, Romania
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Yadav TC, Bachhuka A. Tuning foreign body response with tailor-engineered nanoscale surface modifications: fundamentals to clinical applications. J Mater Chem B 2023; 11:7834-7854. [PMID: 37528807 DOI: 10.1039/d3tb01040f] [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: 08/03/2023]
Abstract
Biomaterials are omnipresent in today's healthcare services and are employed in various applications, including implants, sensors, healthcare accessories, and drug delivery systems. Unfavorable host immunological responses frequently jeopardize the efficacy of biomaterials. As a result, surface modification has received much attention in controlling inflammatory responses since it helps camouflage the biomaterial from the host immune system, influencing the foreign body response (FBR) from protein adsorption to fibrous capsule formation. Surfaces with controlled nanotopography and chemistry, among other surface modification methodologies, have effectively altered the immune response to biomaterials. However, the field is still in its early stages, with only a few studies showing a synergistic effect of surface chemistry and nanotopography on inflammatory and wound healing pathways. Therefore, this review will concentrate on the individual and synergistic effects of surface chemistry and nanotopography on FBR modulation and the molecular processes known to modulate these responses. This review will also provide insights into crucial research gaps and advancements in various tactics for modulating FBR, opening new paths for future research. This will further aid in improving our understanding of the immune response to biomaterials, developing advanced surface modification techniques, designing immunomodulatory biomaterials, and translating discoveries into clinical applications.
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Affiliation(s)
- Tara Chand Yadav
- Department of Bioinformatics, Faculty of Engineering & Technology, Marwadi University, Gujarat, 360003, India
- Department of Electronics, Electric, and Automatic Engineering, Rovira I Virgili University (URV), Tarragona, 43003, Spain.
| | - Akash Bachhuka
- Department of Electronics, Electric, and Automatic Engineering, Rovira I Virgili University (URV), Tarragona, 43003, Spain.
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Saiding Q, Chen Y, Wang J, Pereira CL, Sarmento B, Cui W, Chen X. Abdominal wall hernia repair: from prosthetic meshes to smart materials. Mater Today Bio 2023; 21:100691. [PMID: 37455815 PMCID: PMC10339210 DOI: 10.1016/j.mtbio.2023.100691] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/15/2023] [Accepted: 06/03/2023] [Indexed: 07/18/2023] Open
Abstract
Hernia reconstruction is one of the most frequently practiced surgical procedures worldwide. Plastic surgery plays a pivotal role in reestablishing desired abdominal wall structure and function without the drawbacks traditionally associated with general surgery as excessive tension, postoperative pain, poor repair outcomes, and frequent recurrence. Surgical meshes have been the preferential choice for abdominal wall hernia repair to achieve the physical integrity and equivalent components of musculofascial layers. Despite the relevant progress in recent years, there are still unsolved challenges in surgical mesh design and complication settlement. This review provides a systemic summary of the hernia surgical mesh development deeply related to abdominal wall hernia pathology and classification. Commercial meshes, the first-generation prosthetic materials, and the most commonly used repair materials in the clinic are described in detail, addressing constrain side effects and rational strategies to establish characteristics of ideal hernia repair meshes. The engineered prosthetics are defined as a transit to the biomimetic smart hernia repair scaffolds with specific advantages and disadvantages, including hydrogel scaffolds, electrospinning membranes, and three-dimensional patches. Lastly, this review critically outlines the future research direction for successful hernia repair solutions by combing state-of-the-art techniques and materials.
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Affiliation(s)
- Qimanguli Saiding
- Shanghai Key Laboratory of Embryo Original Diseases, The International Peace Maternal and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, 910 Hengshan Road, Shanghai, 200030, PR China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Yiyao Chen
- Shanghai Key Laboratory of Embryo Original Diseases, The International Peace Maternal and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, 910 Hengshan Road, Shanghai, 200030, PR China
| | - Juan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Catarina Leite Pereira
- I3S – Instituto de Investigação e Inovação Em Saúde and INEB – Instituto de Engenharia Biomédica, Universidade Do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
| | - Bruno Sarmento
- I3S – Instituto de Investigação e Inovação Em Saúde and INEB – Instituto de Engenharia Biomédica, Universidade Do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
- IUCS – Instituto Universitário de Ciências da Saúde, CESPU, Rua Central de Gandra 1317, 4585-116, Gandra, Portugal
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, PR China
| | - Xinliang Chen
- Shanghai Key Laboratory of Embryo Original Diseases, The International Peace Maternal and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, 910 Hengshan Road, Shanghai, 200030, PR China
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6
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Jalalah M, Ahmad A, Saleem A, Qadir MB, Khaliq Z, Khan MQ, Nazir A, Faisal M, Alsaiari M, Irfan M, Alsareii SA, Harraz FA. Electrospun Nanofiber/Textile Supported Composite Membranes with Improved Mechanical Performance for Biomedical Applications. MEMBRANES 2022; 12:membranes12111158. [PMID: 36422150 PMCID: PMC9693054 DOI: 10.3390/membranes12111158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 05/27/2023]
Abstract
Textile-supported nanocomposite as a scaffold has been extensively used in the medical field, mainly to give support to weak or harmed tissues. However, there are some challenges in fabricating the nanofiber/textile composite, i.e., suitable porous structure with defined pore size, less skin contact area, biocompatibility, and availability of degradable materials. Herein, polyamide-6 (PA) nanofibers were synthesized using needleless electrospinning with the toothed wheel as a spinneret. The electrospinning process was optimized using different process and solution parameters. In the next phase, optimized PA nanofiber membranes of optimum fiber diameter with uniform distribution and thickness were used in making nanofiber membrane-textile composite. Different textile fabrics (woven, non-woven, knitted) were developed. The optimized nanofiber membranes were combined with non-woven, woven, and knitted fabrics to make fabric-supported nanocomposite. The nanofiber/fabric composites were compared with available market woven and knitted meshes for mechanical properties, morphology, structure, and chemical interaction analysis. It was found that the tear strength of the nanofiber/woven composite was three times higher than market woven mesh, and the nanofiber/knitted composite was 2.5 times higher than market knitted mesh. The developed composite structures with woven and knitted fabric exhibited improved bursting strength (613.1 and 751.1 Kpa), tensile strength (195.76 and 227.85 N), and puncture resistance (68.76 and 57.47 N), respectively, than market available meshes. All these properties showed that PA nanofibers/textile structures could be utilized as a composite with multifunctional properties.
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Affiliation(s)
- Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Electrical Engineering, College of Engineering, Najran University, Najran 61441, Saudi Arabia
| | - Adnan Ahmad
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Asad Saleem
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Muhammad Bilal Qadir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Zubair Khaliq
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Muhammad Qamar Khan
- Department of Textile & Clothing, Karachi Campus, National Textile University, Karachi 74900, Pakistan
| | - Ahsan Nazir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - M. Faisal
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
| | - Mabkhoot Alsaiari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
| | - Muhammad Irfan
- Department of Electrical Engineering, College of Engineering, Najran University, Najran 61441, Saudi Arabia
| | - S. A. Alsareii
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Surgery, College of Medicine, Najran University, Najran 11001, Saudi Arabia
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
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7
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Kijeńska-Gawrońska E, Wiercińska K, Bil M. The Dependence of the Properties of Recycled PET Electrospun Mats on the Origin of the Material Used for Their Fabrication. Polymers (Basel) 2022; 14:2881. [PMID: 35890657 PMCID: PMC9322509 DOI: 10.3390/polym14142881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 12/03/2022] Open
Abstract
Plastic materials are one of the significant components of construction materials omnipresent in all areas of the industry and everyday life. One of these plastics is polyethylene terephthalate (PET). Due to its processing properties, with a simultaneous low production cost, PET has been used in many industrial applications, including the production of various types of bottles. Moreover, the high consumption of PET bottles causes the accumulation of large amounts of their waste and necessitates finding an effective way to recycle them. Electrospinning is a well-known non-complicated method for the fabrication of nonwovens from polymers and composites, which can be utilized in many fields due to their outstanding properties. In addition, it might be a promising technique for the recycling of plastic materials. Therefore, in this study, the electrospinning approach for the recycling of two types of PET bottle wastes-bottles made of virgin PET and bottles made of recycled PET (PET bottles) has been utilized, and a comparison of the properties of the obtained materials have been performed. The fibers with diameters of 1.62 ± 0.22, 1.64 ± 0.18, and 1.89 ± 0.19 have been produced from solutions made of virgin PET granulate, PET bottles, and PET bottles made of recycled bottles, respectively. Obtained fibers underwent morphological observation using a scanning electron microscope. Physico-chemical properties using FTIR, gel chromatography, and differential scanning calorimetry have been evaluated, and mechanical properties of obtained mats have been investigated. Cytotoxicity tests using the L929 mouse fibroblast cell line revealed no cytotoxicity for all tested materials.
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Affiliation(s)
- Ewa Kijeńska-Gawrońska
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland;
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland;
| | - Katarzyna Wiercińska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland;
| | - Monika Bil
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland;
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8
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Xu L, Liu Y, Zhou W, Yu D. Electrospun Medical Sutures for Wound Healing: A Review. Polymers (Basel) 2022; 14:1637. [PMID: 35566807 PMCID: PMC9105379 DOI: 10.3390/polym14091637] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/16/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
With the increasing demand for wound healing around the world, the level of medical equipment is also increasing, but sutures are still the preferred medical equipment for medical personnel to solve wound closures. Compared with the traditional sutures, the nanofiber sutures produced by combining the preparation technology of drug-eluting sutures have greatly improved both mechanical properties and biological properties. Electrospinning technology has attracted more attention as one of the most convenient and simple methods for preparing functional nanofibers and the related sutures. This review firstly discusses the structural classification of sutures and the performance analysis affecting the manufacture and use of sutures, followed by the discussion and classification of electrospinning technology, and then summarizes the relevant research on absorbable and non-absorbable sutures. Finally, several common polymers and biologically active substances used in creating sutures are concluded, the related applications of sutures are discussed, and the future prospects of electrospinning sutures are suggested.
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Affiliation(s)
- Lin Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (L.X.); (W.Z.)
| | - Yanan Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (L.X.); (W.Z.)
| | - Wenhui Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (L.X.); (W.Z.)
| | - Dengguang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (L.X.); (W.Z.)
- Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, China
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9
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Xu D, Fang M, Wang Q, Qiao Y, Li Y, Wang L. Latest Trends on the Attenuation of Systemic Foreign Body Response and Infectious Complications of Synthetic Hernia Meshes. ACS APPLIED BIO MATERIALS 2022; 5:1-19. [PMID: 35014826 DOI: 10.1021/acsabm.1c00841] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Throughout the past few years, hernia incidence has remained at a high level worldwide, with more than 20 million people requiring hernia surgery each year. Synthetic hernia meshes play an important role, providing a microenvironment that attracts and harbors host cells and acting as a permanent roadmap for intact abdominal wall reconstruction. Nevertheless, it is still inevitable to cause not-so-trivial complications, especially chronic pain and adhesion. In long-term studies, it was found that the complications are mainly caused by excessive fibrosis from the foreign body reaction (FBR) and infection resulting from bacterial colonization. For a thorough understanding of their complex mechanism and providing a richer background for mesh development, herein, we discuss different clinical mesh products and explore the interactions between their structure and complications. We further explored progress in reducing mesh complications to provide varied strategies that are informative and instructive for mesh modification in different research directions. We hope that this work will spur hernia mesh designers to step up their efforts to develop more practical and accessible meshes by improving the physical structure and chemical properties of meshes to combat the increasing risk of adhesions, infections, and inflammatory reactions. We conclude that further work is needed to solve this pressing problem, especially in the analysis and functionalization of mesh materials, provided of course that the initial performance of the mesh is guaranteed.
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Affiliation(s)
- Danyao Xu
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Meiqi Fang
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Qian Wang
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Yansha Qiao
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Yan Li
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Lu Wang
- Key Laboratory of Textile Science &Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.,Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
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10
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Mardina Z, Venezuela J, Maher C, Shi Z, Dargusch M, Atrens A. Design, mechanical and degradation requirements of biodegradable metal mesh for pelvic floor reconstruction. Biomater Sci 2022; 10:3371-3392. [DOI: 10.1039/d2bm00179a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pelvic organ prolapse (POP) is the herniation of surrounding tissue and organs into the vagina and or rectum, and is a result of weakening of pelvic floor muscles, connective tissue,...
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ASIA (Shoenfeld's syndrome) due to hysteroscopic Essure sterilization. Autoimmun Rev 2021; 20:102979. [PMID: 34752966 DOI: 10.1016/j.autrev.2021.102979] [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: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 11/21/2022]
Abstract
Essure (TM, Bayer; Leverkusen, Germany) may act as a potential cause of autoimmune/inflammatory syndrome by adjuvants (ASIA). Essure is a device hysteroscopically inserted into the fallopian tubes to elicit a local inflammatory response for permanent sterilization. Patients with ASIA present with a constellation of symptoms including fatigue, cognitive impairment, and arthralgias. It is well known that ASIA is triggered by implantation of foreign material such as breast implants and mesh for hernia repair. In the current study, we present a retrospective cohort of 33 patients electing to remove Essure due to pelvic pain and systemic symptoms consistent with an ASIA diagnosis, and detail a case report of an Essure patient. Furthermore, we reviewed the existing literature on adverse events associated with Essure and studies assessing outcomes following explantation. The concept that Essure may trigger ASIA is further supported by both in vivo and in vitro studies demonstrating immunostimulatory effects of the material components of the device. We conclude that the existing evidence is sufficient to recommend screening of Essure recipients for ASIA symptoms, and where indicated, discussion of the risks and potential benefits of surgical removal.
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12
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Serrano-Aroca Á, Pous-Serrano S. Prosthetic meshes for hernia repair: State of art, classification, biomaterials, antimicrobial approaches, and fabrication methods. J Biomed Mater Res A 2021; 109:2695-2719. [PMID: 34021705 DOI: 10.1002/jbm.a.37238] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/23/2022]
Abstract
Worldwide, hernia repair represents one of the most frequent surgical procedures encompassing a global market valued at several billion dollars. This type of surgery usually requires the implantation of a mesh that needs the appropriate chemical, physical and biological properties for the type of repair. This review thus presents a description of the types of hernias, current hernia repair methods, and the state of the art of prosthetic meshes for hernia repair providing the most important meshes used in clinical practice by surgeons working in this area classified according to their biological or chemical nature, morphology and whether bioabsorbable or not. We emphasise the importance of surgical site infection in herniatology, how to deal with this microbial problem, and we go further into the future research lines on the production of advanced antimicrobial meshes to improve hernia repair and prevent microbial infections, including multidrug-resistant strains. A great deal of progress has been made in this biomedical field in the last decade. However, we are still far from an ideal antimicrobial mesh that can also provide excellent integration to the abdominal wall, mechanical performance, low visceral adhesion and minimal inflammatory or foreign body reactions, among many other problems.
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Affiliation(s)
- Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
| | - Salvador Pous-Serrano
- Surgical Unit of Abdominal Wall, Department of General and Digestive Surgery, La Fe University Hospital, Valencia, Spain
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Characterization of innate and adaptive immune cells involved in the foreign body reaction to polypropylene meshes in the human abdomen. Hernia 2021; 26:309-323. [PMID: 33788008 PMCID: PMC8881270 DOI: 10.1007/s10029-021-02396-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/10/2021] [Indexed: 12/25/2022]
Abstract
Background Polypropylene (PP) mesh is widely used to reinforce tissues. The foreign body reaction (FBR) to the implant is dominated by innate immune cells, especially macrophages. However, considerable numbers of adaptive immune cells, namely T cells, have also been regularly observed, which appear to play a crucial role in the long-term host response. Methods This study investigated the FBR to seven human PP meshes, which were removed from the abdomen for recurrence after a median of one year. Using immunofluorescence microscopy, the FBR was examined for various innate (CD11b+ myeloid, CD68+ macrophages, CD56+ NK) and adaptive immune cells (CD3+ T, CD4+ T-helper, CD8+ cytotoxic, FoxP3+ T-regulatory, CD20+ B) as well as “conventional” immune cells (defined as cells expressing their specific immune cell marker without co-expressing CD68). Results T-helper cells (19%) and regulatory T-cells (25%) were present at comparable rates to macrophages, and clustered significantly toward the mesh fibers. For all cell types the lowest proportions of “conventional” cells (< 60%) were observed at the mesh–tissue interface, but increased considerably at about 50–100 µm, indicating reduced stimulation with rising distance to the mesh fibers. Conclusion Both innate and adaptive immune cells participate in the chronic FBR to PP meshes with T cells and macrophages being the predominant cell types, respectively. In concordance with the previous data, many cells presented a “hybrid” pattern near the mesh fibers. The complexity of the immune reaction seen within the foreign body granuloma may explain why approaches focusing on specific cell types have not been very successful in reducing the chronic FBR. Supplementary Information The online version contains supplementary material available at 10.1007/s10029-021-02396-7.
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Structurally optimized suture resistant polylactic acid (PLA)/poly (є-caprolactone) (PCL) blend based engineered nanofibrous mats. J Mech Behav Biomed Mater 2021; 116:104331. [PMID: 33517099 DOI: 10.1016/j.jmbbm.2021.104331] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/15/2020] [Accepted: 01/12/2021] [Indexed: 12/23/2022]
Abstract
The structural fabrication and optimization of polylactic acid (PLA)/poly (є-caprolactone) (PCL) blend-based bead-free electrospun nanofibrous mats (ENMs) has been carried out by using Response Surface Methodology (RSM) and Taguchi design of experiments (DoE). From the three control parameters i.e., PCL content, N, N- dimethylformamide (DMF) content, and electrospinning solution concentration, the optimal parametric combinations for minimizing the bead defects amongst ENMs were obtained. The parametric optimization outcomes remained identical, from both RSM and Taguchi approaches, irrespective of the difference in the number of experimental trials. The experimental validation of the predicted results from Taguchi-design showed an excellent agreement with >95% accuracy concerning minimization of bead defects and average fiber diameter. The solution concentration was a key determinant in controlling the gross fiber morphology. The quasi-static mechanical response of the optimally designed ENMs showed a distinct role in structural aspects of fibers. The failure responses revealed the role of the structural network of ENMs in controlling the failure stress and network collapse that was also reiterated upon the outcomes of suture retention strength assessment. The optimally designed ENM structures showed a correspondingly optimal level of suture resistance, where fine fibers offered higher resistance to suture failure due to the cooperative network effects unlike the relatively coarse fiber-based ENMs undergoing collapse attributed to fiber buckling and fiber slippage in the labile structural network.
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15
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Goonoo N, Boodhun A, Ziman M, Gray E, Bhaw-Luximon A. Repurposing nano-enabled polymeric scaffolds for tumor-wound management and 3D tumor engineering. Regen Med 2020; 15:2229-2247. [PMID: 33284640 DOI: 10.2217/rme-2020-0072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The main challenges of cancer drugs are toxicity, effect on wound healing/patient outcome and in vivo instability. Polymeric scaffolds have been used separately for tissue regeneration in wound healing and as anticancer drug releasing devices. Bringing these two together in bifunctional scaffolds can provide a tool for postoperative local tumor management by promoting healthy tissue regrowth and to deliver anticancer drugs. Another addition to the versatility of polymeric scaffold is its recently discovered ability to act as 3D cell culture models for in vitro isolation and amplification of cancer cells for personalized drug screening and to recapitulate the tumor microenvironment. This review focuses on the repurposing of 3D polymeric scaffolds for local tumor-wound management and development of in vitro cell culture models.
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Affiliation(s)
- Nowsheen Goonoo
- Biomaterials Drug Delivery & Nanotechnology Unit, Centre for Biomedical & Biomaterials Research, MSIRI Building, University of Mauritius, 80837 Réduit, Mauritius
| | - Ajmal Boodhun
- Biomaterials Drug Delivery & Nanotechnology Unit, Centre for Biomedical & Biomaterials Research, MSIRI Building, University of Mauritius, 80837 Réduit, Mauritius
| | - Melanie Ziman
- School of Medical & Health Sciences, Edith Cowan University, Perth, WA 6027, Australia
| | - Elin Gray
- School of Medical & Health Sciences, Edith Cowan University, Perth, WA 6027, Australia
| | - Archana Bhaw-Luximon
- Biomaterials Drug Delivery & Nanotechnology Unit, Centre for Biomedical & Biomaterials Research, MSIRI Building, University of Mauritius, 80837 Réduit, Mauritius
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16
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Yang D, Song Z, Shen J, Song H, Yang J, Zhang P, Gu Y. Regenerated silk fibroin (RSF) electrostatic spun fibre composite with polypropylene mesh for reconstruction of abdominal wall defects in a rat model. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2020; 48:425-434. [PMID: 31916462 DOI: 10.1080/21691401.2019.1709858] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Abdominal wall defects are associated with abdominal wall surgery, infection and tumour resection. Polypropylene (PP) mesh, which has excellent mechanical strength, is currently the primary clinical repair material. In repairing the abdominal wall, the mesh can erode the bowel and cause other problems. Constructing a barrier that induces a weak inflammatory response and promotes rapid recovery of the peritoneum is important. We used electrospinning technology to construct a silk fibroin coating on the abdominal surface of a PP patch. A rat model was used to compare the inflammatory responses, regeneration of peritoneal tissue, and antiadhesion effects of electrospun regenerated silk fibroin (RSF) coatings, polycaprolactone (PCL) coatings, and noncoated PP meshes. The inflammatory responses, antiadhesion fractions, and areas of RSF and PCL were better than those of PP at 6 weeks. RSF was associated with complete peritoneal regeneration, in contrast to PCL. At 12 weeks, the structure of the PCL peritoneum was unstable, and the adhesion fraction and area were significantly higher than those of RSF. The intact peritoneum could not be effectively regenerated. The RSF group exhibited lower IL-6 levels than the PCL and PP groups but higher VEGF, IL-10 and TGF-β levels, making RSF more conducive to the regeneration of peritoneal and abdominal wall tissues.
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Affiliation(s)
- Dongchao Yang
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhicheng Song
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jiali Shen
- College of Textiles, Donghua University, Shanghai, China
| | - Heng Song
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jianjun Yang
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Peihua Zhang
- College of Textiles, Donghua University, Shanghai, China
| | - Yan Gu
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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17
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Reifenrath J, Wellmann M, Kempfert M, Angrisani N, Welke B, Gniesmer S, Kampmann A, Menzel H, Willbold E. TGF-β3 Loaded Electrospun Polycaprolacton Fibre Scaffolds for Rotator Cuff Tear Repair: An in Vivo Study in Rats. Int J Mol Sci 2020; 21:E1046. [PMID: 32033294 PMCID: PMC7036781 DOI: 10.3390/ijms21031046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 12/21/2022] Open
Abstract
Biological factors such as TGF-β3 are possible supporters of the healing process in chronic rotator cuff tears. In the present study, electrospun chitosan coated polycaprolacton (CS-g-PCL) fibre scaffolds were loaded with TGF-β3 and their effect on tendon healing was compared biomechanically and histologically to unloaded fibre scaffolds in a chronic tendon defect rat model. The biomechanical analysis revealed that tendon-bone constructs with unloaded scaffolds had significantly lower values for maximum force compared to native tendons. Tendon-bone constructs with TGF-β3-loaded fibre scaffolds showed only slightly lower values. In histological evaluation minor differences could be observed. Both groups showed advanced fibre scaffold degradation driven partly by foreign body giant cell accumulation and high cellular numbers in the reconstructed area. Normal levels of neutrophils indicate that present mast cells mediated rather phagocytosis than inflammation. Fibrosis as sign of foreign body encapsulation and scar formation was only minorly present. In conclusion, TGF-β3-loading of electrospun PCL fibre scaffolds resulted in more robust constructs without causing significant advantages on a cellular level. A deeper investigation with special focus on macrophages and foreign body giant cells interactions is one of the major foci in further investigations.
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Affiliation(s)
- Janin Reifenrath
- Department of Orthopaedic Surgery, Hannover Medical School, Anna–von–Borries Str. 1–3, 30625 Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Mathias Wellmann
- Department of Orthopaedic Surgery, Hannover Medical School, Anna–von–Borries Str. 1–3, 30625 Hannover, Germany
| | - Merle Kempfert
- Department of Orthopaedic Surgery, Hannover Medical School, Anna–von–Borries Str. 1–3, 30625 Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Nina Angrisani
- Department of Orthopaedic Surgery, Hannover Medical School, Anna–von–Borries Str. 1–3, 30625 Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
| | - Bastian Welke
- Laboratory for Biomechanics and Biomaterials, Department of Orthopaedic Surgery, Hannover Medical School, Haubergstraße 3, 30625 Hannover, Germany
| | - Sarah Gniesmer
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
- Clinic for Cranio–Maxillo–Facial Surgery, Hannover Medical School, Carl–Neuberg–Straße 1, 30625 Hannover, Germany
| | - Andreas Kampmann
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
- Clinic for Cranio–Maxillo–Facial Surgery, Hannover Medical School, Carl–Neuberg–Straße 1, 30625 Hannover, Germany
| | - Henning Menzel
- Institute for Technical Chemistry, Braunschweig University of Technology, Hagenring 30, 38106 Braunschweig, Germany
| | - Elmar Willbold
- Department of Orthopaedic Surgery, Hannover Medical School, Anna–von–Borries Str. 1–3, 30625 Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625 Hannover, Germany
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Roy H, Rahaman SA, Kumar TV, Nandi S. Current Development on Chitosan-based Antimicrobial Drug Formulations for the Wound Healing. Curr Drug Discov Technol 2020; 17:534-541. [PMID: 31971111 DOI: 10.2174/1570163817666200123122532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/26/2019] [Accepted: 11/08/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Derived from polyose, chitosan is an outstanding natural linear polysaccharide comprised of random arrangement of β-(1-4)-linked D-Glucosamine and N-acetyl-DGlucosamine units. OBJECTIVE Researchers have been using chitosan as a network forming or gelling agent with economically available, present polyose, low immunogenicity, biocompatibility, non-toxicity, biodegradability, protects against secretion from irritation and don't suffer the danger of transmission animal infective agent. METHODS Furthermore, recent studies gear up the chitosan used in the development of various biopharmaceutical formulations, including nanoparticles, hydrogels, implants, films, fibers, etc. Results: These formulations produce potential activities as antimicrobials, cancer treatment, medical aid, and wound healing, controlled unleash device or drug trigger retarding device and 3DBiomedical sponge, etc. Conclusion: The present article discusses the development of various drug formulations utilizing chitosan as biopolymers for the repairing of broken tissues and healing in case of wound infection.
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Affiliation(s)
- Harekrishna Roy
- Department of Pharmaceutics, Nirmala College of Pharmacy, Affiliated to Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - Shaik A Rahaman
- Department of Pharmaceutics, Nirmala College of Pharmacy, Affiliated to Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - Theendra V Kumar
- Department of Pharmaceutics, Nirmala College of Pharmacy, Affiliated to Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - Sisir Nandi
- Department of Pharmaceutical Chemistry, Global Institute of Pharmaceutical Education and Research, Affiliated to Uttarakhand Technical University, Kashipur-244713, India
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19
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Fuller KP, Gaspar D, Delgado LM, Shoseyov O, Zeugolis DI. In vitro and preclinical characterisation of compressed, macro-porous and collagen coated poly-ε-caprolactone electro-spun scaffolds. ACTA ACUST UNITED AC 2019; 14:055007. [PMID: 31269477 DOI: 10.1088/1748-605x/ab2ef0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Low in macro-porosity electro-spun scaffolds are often associated with foreign body response, whilst macro-porous electro-spun scaffolds have low mechanical integrity. Herein, compressed, macro-porous and collagen (bovine Achilles tendon and human recombinant) coated electro-spun poly-ε-caprolactone scaffolds were developed and their biomechanical, in vitro and in vivo properties were assessed. Collagen coating, independently of the source, did not significantly affect the biomechanical properties of the scaffolds. Although no significant difference in cell viability was observed between the groups, collagen coated scaffolds induced significantly higher DNA concentration. In vivo, no signs of adverse tissue effect were observed in any of the groups and all groups appeared to equally integrate into the subcutaneous tissue. It is evidenced that macro-porous poly-ε-caprolactone electro-spun meshes with adequate mechanical properties and acceptable host response can be developed for biomedical applications.
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Affiliation(s)
- Kieran P Fuller
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), National University of Ireland Galway (NUI Galway), Galway, Ireland. Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway (NUI Galway), Galway, Ireland
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20
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Grumezescu AM, Stoica AE, Dima-Bălcescu MȘ, Chircov C, Gharbia S, Baltă C, Roșu M, Herman H, Holban AM, Ficai A, Vasile BS, Andronescu E, Chifiriuc MC, Hermenean A. Electrospun Polyethylene Terephthalate Nanofibers Loaded with Silver Nanoparticles: Novel Approach in Anti-Infective Therapy. J Clin Med 2019; 8:E1039. [PMID: 31315266 PMCID: PMC6679131 DOI: 10.3390/jcm8071039] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/04/2019] [Accepted: 07/07/2019] [Indexed: 12/29/2022] Open
Abstract
Polyethylene terephthalate (PET) is a major pollutant polymer, due to its wide use in food packaging and fiber production industries worldwide. Currently, there is great interest for recycling the huge amount of PET-based materials, derived especially from the food and textile industries. In this study, we applied the electrospinning technique to obtain nanostructured fibrillary membranes based on PET materials. Subsequently, the recycled PET networks were decorated with silver nanoparticles through the chemical reduction method for antimicrobial applications. After the characterization of the materials in terms of crystallinity, chemical bonding, and morphology, the effect against Gram-positive and Gram-negative bacteria, as well as fungal strains, was investigated. Furthermore, in vitro and in vivo biocompatibility tests were performed in order to open up potential biomedical applications, such as wound dressings or implant coatings. Silver-decorated fibers showed lower cytotoxicity and inflammatory effects and increased antibiofilm activity, thus highlighting the potential of these systems for antimicrobial purposes.
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Affiliation(s)
- Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 050094 Bucharest, Romania
- ICUB, Research Institute of Bucharest University, University of Bucharest, 030018 Bucharest, Romania
| | - Alexandra Elena Stoica
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | | | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Sami Gharbia
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Cornel Baltă
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Marcel Roșu
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Hildegard Herman
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania
| | - Alina Maria Holban
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050107 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania.
| | - Mariana Carmen Chifiriuc
- ICUB, Research Institute of Bucharest University, University of Bucharest, 030018 Bucharest, Romania
| | - Anca Hermenean
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
- Faculty of Medicine, Vasile Goldis Western University of Arad, 310045 Arad, Romania
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21
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Costa J, Peixoto T, Ferreira A, Vaz F, Lopes MA. Development and characterization of ZnO piezoelectric thin films on polymeric substrates for tissue repair. J Biomed Mater Res A 2019; 107:2150-2159. [PMID: 31094062 DOI: 10.1002/jbm.a.36725] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 05/13/2019] [Indexed: 12/18/2022]
Abstract
Currently available scaffolds for tissue repair have shown very limited success, so many efforts have being put in the development of novel functional materials capable of regulating cell behavior and enhance the tissue healing rate. Piezoelectric materials, as zinc oxide (ZnO), can be a very interesting solution for scaffold development, as they can deliver electrical signals to cells upon mechanical solicitation, allowing the development of suitable microenvironments for tissue repair. This way, it is reported the deposition of ZnO thin films on a polymer by direct current magnetron sputtering, under different conditions, in order to obtain a piezoelectric ZnO thin film with potential for tissue repair applications. The obtained ZnO thin films were characterized in terms of morphology, crystallography, electrical conductivity, transmittance, piezoelectricity, and adhesion quality. The deposition process resulted in uniform films, with a very good adhesion to the substrate. The different deposition conditions influenced the evolution of the crystalline domains and preferential growths and consequently, the electrical properties of the films. One of the conditions resulted in a thin film with a high piezoelectric coefficient and a conductor behavior, being considered the most promising to act as a bioactive coating.
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Affiliation(s)
- José Costa
- REQUIMTE/LAQV, Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Tânia Peixoto
- REQUIMTE/LAQV, Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | | | - Filipe Vaz
- Centro de Física, Universidade do Minho, Braga, Portugal
| | - Maria A Lopes
- REQUIMTE/LAQV, Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
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22
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Torosyan Y, Spece H, Goodacre N, Azarbaijani Y, Marinac-Dabic D, Kurtz SM. In silico approaches for enhancing retrieval analysis as a source for discovery of implant reactivity-related mechanisms and biomarkers. J Biomed Mater Res B Appl Biomater 2019; 108:263-271. [PMID: 31012261 DOI: 10.1002/jbm.b.34386] [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: 08/07/2018] [Revised: 11/26/2018] [Accepted: 03/24/2019] [Indexed: 11/06/2022]
Abstract
The ability to characterize implant debris in conjunction with corresponding immune and tissue-destructive responses renders retrieval analysis as an important tool for evaluating orthopedic devices. We applied advanced analytics and in silico approaches to illustrate the retrieval-based potential to elucidate host responses and enable discovery of corresponding biomarkers indicative of in vivo implant performance. Hip retrieval analysis was performed using variables based on immunostaining, polarized microscopy, and fretting-corrosion and oxidation analyses. Statistical analyses were performed in R. Hierarchical/k-means clustering and principal component analysis were used for data analysis and visualization. Correlation Engine (CE) and Ingenuity Pathway Analysis (IPA) were employed for in silico corroboration of putative biomarkers. Higher giant cell and histiocyte scores and positivity for CD68 and CD3 indicating infiltration with macrophages and T-cells, respectively, were detected mainly among older generation hips with higher ultra-high-molecular-weight-polyethylene loads. Our in silico analysis using pre-existing data on wear particle-induced loosening substantiated the role of CD68 in implant-induced innate responses and identified the CD68-related molecular signature that can be indicative of development of aseptic loosening and can be further corroborated for diagnostic/prognostic testing in clinical setting. Thus, this study confirmed the great potential of advanced analytics and in silico approaches for enhancing retrieval analysis applications to discovery of new biomarkers for optimizing implant-related preclinical testing and clinical management. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 108B:263-271, 2020.
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Affiliation(s)
- Yelizaveta Torosyan
- Center for Devices and Radiological Health, Office of Clinical Evidence and Analysis, Food and Drug Administration, Silver Spring, Maryland
| | - Hannah Spece
- Center for Devices and Radiological Health, Office of Clinical Evidence and Analysis, Food and Drug Administration, Silver Spring, Maryland.,Drexel University, Philadelphia, Pennsylvania
| | - Norman Goodacre
- Center for Devices and Radiological Health, Office of Clinical Evidence and Analysis, Food and Drug Administration, Silver Spring, Maryland
| | - Yasameen Azarbaijani
- Center for Devices and Radiological Health, Office of Clinical Evidence and Analysis, Food and Drug Administration, Silver Spring, Maryland
| | - Danica Marinac-Dabic
- Center for Devices and Radiological Health, Office of Clinical Evidence and Analysis, Food and Drug Administration, Silver Spring, Maryland
| | - Steven M Kurtz
- Drexel University, Philadelphia, Pennsylvania.,Exponent, Inc., Philadelphia, Pennsylvania
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23
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Fuller KP, Gaspar D, Delgado LM, Zeugolis DI. Development macro-porous electro-spun meshes with clinically relevant mechanical properties-a technical note. ACTA ACUST UNITED AC 2019; 14:024103. [PMID: 30560808 DOI: 10.1088/1748-605x/aaf929] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The nano-fibrous architecture of electro-spun meshes favours their use in biomedicine, but their low mechanical properties prohibit their wide use in clinical practice. Introduction of porosity, essential of tissue integration, decreases further mechanical integrity. Herein, we hypothesised that macro-porous electro-spun meshes with adequate mechanical properties can be fabricated through layering and subsequent compression. Two and three layers electro-spun poly-ε-caprolactone scaffolds were fabricated, compressed and subsequently 30% circular porosity was introduced through laser cutting. Three-layered porous electro-spun meshes exhibited mechanical properties similar to commercially available scaffolds without any structural or cytotoxic effect. This study brings electro-spun materials closer to clinical translation and commercialisation.
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Affiliation(s)
- Kieran P Fuller
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), National University of Ireland Galway (NUI Galway), Galway, Ireland. Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway (NUI Galway), Galway, Ireland
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Han W, Yu JH, Na MH, Kang S. Right ventricular outflow tract obstruction caused by a foreign body granuloma originating from a Dacron ® graft 30 years after transannular patching. J Thorac Dis 2018; 10:E459-E461. [PMID: 30069405 DOI: 10.21037/jtd.2018.05.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Woosik Han
- Department of Thoracic and Cardiovascular Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Jae Hyeon Yu
- Department of Thoracic and Cardiovascular Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Myung Hoon Na
- Department of Thoracic and Cardiovascular Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Shinkwang Kang
- Department of Thoracic and Cardiovascular Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
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Yoshioka Y, Nakatao H, Hamana T, Hamada A, Kanda T, Koizumi K, Toratani S, Okamoto T. Suture granulomas developing after the treatment of oral squamous cell carcinoma. Int J Surg Case Rep 2018; 50:68-71. [PMID: 30086475 PMCID: PMC6085222 DOI: 10.1016/j.ijscr.2018.07.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/06/2018] [Accepted: 07/23/2018] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Suture granuloma is a benign tumor that develops because of the presence of surgical suture materials. It commonly occurs several years after different types of surgeries. Here we report a case involving a 64-year-old man who underwent head and neck surgery for oral squamous cell carcinoma and developed multiple suture granulomas mimicking tumor recurrence in the radiation field just a few days after the completion of adjuvant chemoradiation therapy. PRESENTATION OF CASE The patient underwent surgery for lymph node metastasis in the neck at 6 months after the resection of primary oral squamous cell carcinoma. Fifteen days after the completion of adjuvant chemoradiation therapy at a total dose of 50 Gy, small nodules appeared in the radiation field, along the areas of the subcutaneous surgical sutures. Cancer recurrence was initially suspected, but histopathological analysis of a biopsy specimen confirmed foreign body granuloma. DISCUSSION Chemoradiation therapy may enhance the immunoreaction of macrophages in the radiation field and promote the formation of granulation tissue in a short period of time. In addition, cisplatin, which was concurrently administered with radiation in our case, could have influenced the development of the suture granuloma. CONCLUSION In addition to tumor recurrence, suture granulomas should be considered a differential diagnosis for nodules occurring after surgery, even if they develop in the field of radiation.
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Affiliation(s)
- Yukio Yoshioka
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Science, Graduate Institute of Biomedical and Health Science, Hiroshima University, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Hirotaka Nakatao
- Oral and Maxillofacial surgery, Hiroshima University Hospital, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Tomoaki Hamana
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Science, Graduate Institute of Biomedical and Health Science, Hiroshima University, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Atsuko Hamada
- Oral and Maxillofacial surgery, Hiroshima University Hospital, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Taku Kanda
- Oral and Maxillofacial surgery, Hiroshima University Hospital, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Koichi Koizumi
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Science, Graduate Institute of Biomedical and Health Science, Hiroshima University, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Shigeaki Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Science, Graduate Institute of Biomedical and Health Science, Hiroshima University, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
| | - Tetsuji Okamoto
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Science, Graduate Institute of Biomedical and Health Science, Hiroshima University, 734-8553, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima, Japan.
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Herbert R, Kim JH, Kim YS, Lee HM, Yeo WH. Soft Material-Enabled, Flexible Hybrid Electronics for Medicine, Healthcare, and Human-Machine Interfaces. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E187. [PMID: 29364861 PMCID: PMC5848884 DOI: 10.3390/ma11020187] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 01/20/2018] [Accepted: 01/23/2018] [Indexed: 12/20/2022]
Abstract
Flexible hybrid electronics (FHE), designed in wearable and implantable configurations, have enormous applications in advanced healthcare, rapid disease diagnostics, and persistent human-machine interfaces. Soft, contoured geometries and time-dynamic deformation of the targeted tissues require high flexibility and stretchability of the integrated bioelectronics. Recent progress in developing and engineering soft materials has provided a unique opportunity to design various types of mechanically compliant and deformable systems. Here, we summarize the required properties of soft materials and their characteristics for configuring sensing and substrate components in wearable and implantable devices and systems. Details of functionality and sensitivity of the recently developed FHE are discussed with the application areas in medicine, healthcare, and machine interactions. This review concludes with a discussion on limitations of current materials, key requirements for next generation materials, and new application areas.
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Affiliation(s)
- Robert Herbert
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Jong-Hoon Kim
- School of Engineering and Computer Science, Washington State University, Vancouver, WA 98686, USA.
| | - Yun Soung Kim
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Hye Moon Lee
- Functional Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam 641-831, Korea.
| | - Woon-Hong Yeo
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
- Center for Flexible Electronics, Institute for Electronics and Nanotechnology, Bioengineering Program, Petit Institute for Bioengineering and Biosciences, Neural Engineering Center, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Baylón K, Rodríguez-Camarillo P, Elías-Zúñiga A, Díaz-Elizondo JA, Gilkerson R, Lozano K. Past, Present and Future of Surgical Meshes: A Review. MEMBRANES 2017; 7:E47. [PMID: 28829367 PMCID: PMC5618132 DOI: 10.3390/membranes7030047] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/09/2017] [Accepted: 08/17/2017] [Indexed: 12/14/2022]
Abstract
Surgical meshes, in particular those used to repair hernias, have been in use since 1891. Since then, research in the area has expanded, given the vast number of post-surgery complications such as infection, fibrosis, adhesions, mesh rejection, and hernia recurrence. Researchers have focused on the analysis and implementation of a wide range of materials: meshes with different fiber size and porosity, a variety of manufacturing methods, and certainly a variety of surgical and implantation procedures. Currently, surface modification methods and development of nanofiber based systems are actively being explored as areas of opportunity to retain material strength and increase biocompatibility of available meshes. This review summarizes the history of surgical meshes and presents an overview of commercial surgical meshes, their properties, manufacturing methods, and observed biological response, as well as the requirements for an ideal surgical mesh and potential manufacturing methods.
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Affiliation(s)
- Karen Baylón
- Centro de Innovación en Diseño y Tecnología, Tecnológico de Monterrey, Campus Monterrey, Monterrey 64849, Mexico.
| | - Perla Rodríguez-Camarillo
- Centro de Innovación en Diseño y Tecnología, Tecnológico de Monterrey, Campus Monterrey, Monterrey 64849, Mexico.
| | - Alex Elías-Zúñiga
- Centro de Innovación en Diseño y Tecnología, Tecnológico de Monterrey, Campus Monterrey, Monterrey 64849, Mexico.
| | | | - Robert Gilkerson
- Departments of Biology and Clinical Laboratory Sciences, The University of Texas Rio Grande Valley, Edinburg, TX 78539, USA.
| | - Karen Lozano
- Mechanical Engineering Department, The University of Texas Rio Grande Valley, Edinburg, TX 78539, USA.
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Vashaghian M, Zaat SJ, Smit TH, Roovers JP. Biomimetic implants for pelvic floor repair. Neurourol Urodyn 2017; 37:566-580. [PMID: 28799675 DOI: 10.1002/nau.23367] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 05/15/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Polypropylene implants are used for the reconstructive surgery of urogynaecological disorders like pelvic organ prolapse, but severe complications associated with their use have been reported. There is evidence that surface properties and a difference in mechanical stiffness between the implant and the host tissue contribute to these adverse events. Electrospinning is an innovative engineering alternative that provides a biomimetic microstructure for implants, resulting in a different mechano-biological performance. AIM The main objective of this review is to inform about the potential of electrospun matrices as an alternative modality for pelvic floor repair. METHODS Publications with the following studies of electrospun matrices were reviewed: (i) the technique; (ii) in vitro use for soft tissue engineering; (iii) in vivo use for reconstruction of soft tissues in animals; and (iv) clinical use in humans. RESULTS Electrospun matrices provide a synthetic mimic of natural extracellular matrix (ECM), favoring cellular attachment, proliferation and matrix deposition, through which a proper, low-inflammatory tissue-implant interaction can be established. Electrospun sheets can also be created with sufficient mechanical strength and stiffness for usage in prolapse surgery. CONCLUSION Electrospun matrices mimic the structural topography of the extracellular matrix and can be functionalized for better biological performance. As such, they have great potential for the next generation of urogynecological implants. However, their long-term safety and efficacy must still be established in vivo.
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Affiliation(s)
- Mahshid Vashaghian
- Department of Obstetrics & Gynaecology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Sebastianus J Zaat
- Department of Medical Microbiology, Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Theodoor H Smit
- Department of Medical Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Jan-Paul Roovers
- Department of Obstetrics & Gynaecology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Goonoo N. Modulating Immunological Responses of Electrospun Fibers for Tissue Engineering. ACTA ACUST UNITED AC 2017; 1:e1700093. [PMID: 32646177 DOI: 10.1002/adbi.201700093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Indexed: 12/28/2022]
Abstract
The promise of tissue engineering is to improve or restore functions of impaired tissues or organs. However, one of the biggest challenges to its translation to clinical applications is the lack of tissue integration and functionality. The plethora of cellular and molecular events occurring following scaffold implantation is a major bottleneck. Recent studies confirmed that inflammation is a crucial component influencing tissue regeneration. Immuno-modulation or immune-engineering has been proposed as a potential solution to overcome this key challenge in regenerative medicine. In this review, strategies to modify scaffold physicochemical properties through the use of the electrospinning technique to modulate host response and improve scaffold integration will be discussed. Electrospinning, being highly versatile allows the fabrication of ECM-mimicking scaffolds and also offers the possibility to control scaffold properties for instance, tailoring of fiber properties, chemical conjugation or physical adsorption of non-immunogenic materials on the scaffold surface, encapsulating cells or anti-inflammatory molecules within the scaffold. Such electrospun scaffold-based immune-engineering strategies can significantly improve the resulting outcomes of tissue engineering scaffolds.
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Affiliation(s)
- Nowsheen Goonoo
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cµ), University of Siegen, 57076, Siegen, Germany.,Biomaterials, Drug Delivery & Nanotechnology Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Mauritius
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Affiliation(s)
- Suwan N. Jayasinghe
- BioPhysics Group, UCL Centre for Stem Cells and Regenerative Medicine; UCL Department of Mechanical Engineering and UCL Institute of Healthcare Engineering; University College London; Torrington Place London WC1E 7JE United Kingdom
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Li J, Ren G, Zhang W. Reduction of Abdominal Adhesions with Elecrospun Fiber Membranes in Rat Models. J INVEST SURG 2017; 31:210-217. [PMID: 28402690 DOI: 10.1080/08941939.2017.1310961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Junsheng Li
- Department of General Surgery, Affiliated ZhongDa Hospital, Southeast University, Nanjing, P.R. China
| | - Guanghui Ren
- Department of General Surgery, Nanjing 2nd Hospital, Southeast University, Nanjing, P.R. China
| | - Weiyu Zhang
- Department of General Surgery, Affiliated ZhongDa Hospital, Southeast University, Nanjing, P.R. China
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Li X, Wang Z, Zhao T, Yu B, Fan Y, Feng Q, Cui FZ, Watari F. A novel method to in vitro evaluate biocompatibility of nanoscaled scaffolds. J Biomed Mater Res A 2016; 104:2117-25. [PMID: 27087116 DOI: 10.1002/jbm.a.35743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 04/02/2016] [Accepted: 04/06/2016] [Indexed: 12/31/2022]
Abstract
This study provided a new method to in vitro evaluate the biocompatibility of nanoscaled scaffolds for tissue engineering with neutrophils other than ordinary cell culture. The neutrophils were separated from human peripheral blood of healthy subjects. In vitro degradation product of nanohydroxyapatite/collagen (nHAC), nanohydroxyapatite/collagen/poly (L-lactic acid) (nHACP), and nHACP reinforced by chitin fibers (nHACP/CF) in the D-Hank's Balanced Salt Solution (D-HBSS) was used as the testing solution, which was thereafter mixed with the neutrophils. It was shown that the cell survival rate in the testing solutions had no significant difference from that in the D-HBSS (control). However, from both gene and protein expression levels, the lactate dehydrogenase and tumor necrosis factor-alpha of the neutrophils in the nHACP/CF testing solution were found lowest during the whole testing period; the main reasons of which might be that the calcium release rate of the scaffold was slowest and that the pH value of its degradation solution was nearest to that of human body. Moreover, in vivo experiments showed that most inflammation reactions happened for nHAC and poly (L-lactic acid) groups, while the least inflammation reactions happened for nHACP/CF group in the subcutaneous dorsum of mice at 2 weeks after the surgery, which confirmed the in vitro findings. These results indicated that the pH value and the certain metal iron concentration of the nanoscaled scaffold degradation solution should be two important factors that significantly affect its biocompatibility. This study provides a simple and effective biocompatibility test method for biodegradable nanoscaled tissue engineering scaffolds. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2117-2125, 2016.
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Affiliation(s)
- Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Zheng Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Tianxiao Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Bo Yu
- Department of Orthopedics, Zhujiang Hospital of Southern Medical University, Guangzhou, People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China
| | - Qingling Feng
- Key Laboratory of Advanced Materials of Ministry of Education of China, Tsinghua University, Beijing, People's Republic of China
| | - Fu-Zhai Cui
- Key Laboratory of Advanced Materials of Ministry of Education of China, Tsinghua University, Beijing, People's Republic of China
| | - Fumio Watari
- Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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Zhu LM, Schuster P, Klinge U. Mesh implants: An overview of crucial mesh parameters. World J Gastrointest Surg 2015; 7:226-236. [PMID: 26523210 PMCID: PMC4621472 DOI: 10.4240/wjgs.v7.i10.226] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/17/2015] [Accepted: 09/28/2015] [Indexed: 02/06/2023] Open
Abstract
Hernia repair is one of the most frequently performed surgical interventions that use mesh implants. This article evaluates crucial mesh parameters to facilitate selection of the most appropriate mesh implant, considering raw materials, mesh composition, structure parameters and mechanical parameters. A literature review was performed using the PubMed database. The most important mesh parameters in the selection of a mesh implant are the raw material, structural parameters and mechanical parameters, which should match the physiological conditions. The structural parameters, especially the porosity, are the most important predictors of the biocompatibility performance of synthetic meshes. Meshes with large pores exhibit less inflammatory infiltrate, connective tissue and scar bridging, which allows increased soft tissue ingrowth. The raw material and combination of raw materials of the used mesh, including potential coatings and textile design, strongly impact the inflammatory reaction to the mesh. Synthetic meshes made from innovative polymers combined with surface coating have been demonstrated to exhibit advantageous behavior in specialized fields. Monofilament, large-pore synthetic meshes exhibit advantages. The value of mesh classification based on mesh weight seems to be overestimated. Mechanical properties of meshes, such as anisotropy/isotropy, elasticity and tensile strength, are crucial parameters for predicting mesh performance after implantation.
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Guillaume O, Teuschl AH, Gruber-Blum S, Fortelny RH, Redl H, Petter-Puchner A. Emerging Trends in Abdominal Wall Reinforcement: Bringing Bio-Functionality to Meshes. Adv Healthc Mater 2015; 4:1763-89. [PMID: 26111309 DOI: 10.1002/adhm.201500201] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 05/12/2015] [Indexed: 12/19/2022]
Abstract
Abdominal wall hernia is a recurrent issue world-wide and requires the implantation of over 1 million meshes per year. Because permanent meshes such as polypropylene and polyester are not free of complications after implantation, many mesh modifications and new functionalities have been investigated over the last decade. Indeed, mesh optimization is the focus of intense development and the biomaterials utilized are now envisioned as being bioactive substrates that trigger various physiological processes in order to prevent complications and to promote tissue integration. In this context, it is of paramount interest to review the most relevant bio-functionalities being brought to new meshes and to open new avenues for the innovative development of the next generation of meshes with enhanced properties for functional abdominal wall hernia repair.
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Affiliation(s)
- Olivier Guillaume
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Donaueschingenstraße 13 A-1200 Vienna Austria
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
| | - Andreas Herbert Teuschl
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
- University of Applied Sciences Technikum Wien; Department of Biochemical Engineering; Höchstädtplatz 5 1200 Vienna Austria
| | - Simone Gruber-Blum
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Donaueschingenstraße 13 A-1200 Vienna Austria
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
- Department of General Visceral and Oncological Surgery; Wilhelminenspital der Stadt Wien; Montleartstraße 37 A-1171 Vienna Austria
| | - René Hartmann Fortelny
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
- Department of General Visceral and Oncological Surgery; Wilhelminenspital der Stadt Wien; Montleartstraße 37 A-1171 Vienna Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Donaueschingenstraße 13 A-1200 Vienna Austria
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
| | - Alexander Petter-Puchner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology; Donaueschingenstraße 13 A-1200 Vienna Austria
- Austrian Cluster for Tissue Regeneration; Donaueschingenstrasse 13 A-1200 Vienna Austria
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Mechanical biocompatibility of highly deformable biomedical materials. J Mech Behav Biomed Mater 2015; 48:100-124. [DOI: 10.1016/j.jmbbm.2015.03.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 03/22/2015] [Accepted: 03/24/2015] [Indexed: 12/20/2022]
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Mouthuy PA, Zargar N, Hakimi O, Lostis E, Carr A. Fabrication of continuous electrospun filaments with potential for use as medical fibres. Biofabrication 2015; 7:025006. [PMID: 25987265 DOI: 10.1088/1758-5090/7/2/025006] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Soft tissue injuries represent a substantial and growing social and economic burden. Medical fibres are commonly used to repair these injuries during surgery. Patient's outcomes are, however, not promising with around 40% of surgical repairs failing within the first few months after surgery due to poor tissue regeneration. The application of nanofibrous filaments and yarns as medical fibres and scaffolds has been suggested to improve soft tissue regeneration and enhance the quality of the repair. However, due to a lack of robustness and reliability of the current fabrication methods, continuous nanofibrous filaments cannot be manufactured and scaled up in industrial settings and are not currently available for clinical use. We have developed a robust and automated method that enables the manufacture of continuous electrospun filaments and which has the potential to be integrated into existing textile production lines. The technology uses a wire guide to form submicrofibres in a dense, narrow mesh which can be detached as a long and continuous thread. The thread can then be stretched and used to create multifilament yarns which can imitate the hierarchical architecture of tissues such as tendons and ligaments. Electrospun polydioxanone yarns produced by this method showed improved cellular proliferation and adhesion when compared to medical monofilament fibres in current clinical use. In vivo, the electrospun yarns showed a good safety profile with mild foreign body reaction and complete degradation within 5 months after implantation. These results suggest that this filament collection method has the potential to become a useful platform for the fabrication of future medical textiles.
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Affiliation(s)
- Pierre-Alexis Mouthuy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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