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Lin Z, Chen H, Xu J, Wang J, Wang H, Huang S, Xu S. A Review of the Release Profiles and Efficacies of Chemotherapy Drug-Loaded Electrospun Membranes. Polymers (Basel) 2023; 15:polym15020251. [PMID: 36679132 PMCID: PMC9865042 DOI: 10.3390/polym15020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Electrospun fibrous membranes loaded with chemotherapy drugs have been broadly studied, many of which have had promising data demonstrating therapeutic effects on cancer cell inhibition, tumor size reduction, the life extension of tumor-bearing animals, and more. Nevertheless, their drug release profiles are difficult to predict since their degradation pattern varies with crystalline polymers. In addition, there is room for improving their release performances, optimizing the release patterns, and achieving better therapeutic outcomes. In this review, the key factors affecting electrospun membrane drug release profiles have been systematically reviewed. Case studies of the release profiles of typical chemotherapy drugs are carried out to determine the preferred polymer choices and techniques to achieve the expected prolonged or enhanced release profiles. The therapeutic effects of these electrospun, chemo-drug-loaded membranes are also discussed. This review aims to assist in the design of future drug-loaded electrospun materials to achieve preferred release profiles with enhanced therapeutic efficacies.
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Affiliation(s)
- Zhenyu Lin
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Hao Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jiawei Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jie Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Huijing Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shifen Huang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-755-26531165
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Biomechanical comparison between bioabsorbable and medical titanium screws in distal chevron osteotomy of first metatarsal in hallux valgus treatment. J Mech Behav Biomed Mater 2022; 131:105260. [DOI: 10.1016/j.jmbbm.2022.105260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/10/2022] [Accepted: 04/29/2022] [Indexed: 11/22/2022]
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Naseem R, Tzivelekis C, German MJ, Gentile P, Ferreira AM, Dalgarno K. Strategies for Enhancing Polyester-Based Materials for Bone Fixation Applications. Molecules 2021; 26:molecules26040992. [PMID: 33668466 PMCID: PMC7917714 DOI: 10.3390/molecules26040992] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/09/2021] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
Polyester-based materials are established options, regarding the manufacturing of bone fixation devices and devices in routine clinical use. This paper reviews the approaches researchers have taken to develop these materials to improve their mechanical and biological performances. Polymer blending, copolymerisation, and the use of particulates and fibre bioceramic materials to make composite materials and surface modifications have all been studied. Polymer blending, copolymerisation, and particulate composite approaches have been adopted commercially, with the primary focus on influencing the in vivo degradation rate. There are emerging opportunities in novel polymer blends and nanoscale particulate systems, to tune bulk properties, and, in terms of surface functionalisation, to optimise the initial interaction of devices with the implanted environment, offering the potential to improve the clinical performances of fracture fixation devices.
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Affiliation(s)
- Raasti Naseem
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
- Correspondence:
| | - Charalampos Tzivelekis
- School of Dental Sciences, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (C.T.); (M.J.G.)
| | - Matthew J. German
- School of Dental Sciences, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (C.T.); (M.J.G.)
| | - Piergiorgio Gentile
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
| | - Ana M. Ferreira
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
| | - Kenny Dalgarno
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; (P.G.); (A.M.F.); (K.D.)
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Kowsar S, Soheilifard R. The effect of the degradation pattern of biodegradable bone plates on the healing process using a biphasic mechano-regulation theory. Biomech Model Mechanobiol 2020; 20:309-321. [PMID: 32980999 DOI: 10.1007/s10237-020-01386-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 09/14/2020] [Indexed: 11/28/2022]
Abstract
Bone plates are used to treat bone fractures by stabilizing the fracture site and allowing treatments to take place. Mechanical properties of the applied bone plate determine the stability of the fracture site and affect the endochondral ossification process and the healing performance. In recent years, biodegradable bone plates have been used in demand for the elimination of a second surgery to remove the plate. The degradation of these plates into the body environment is commonly accompanied by alterations in the mechanical properties of the bone plate and a shift in the healing performance of the bone. In the present study, the effects of using biodegradable plates with various elastic moduli and degradation patterns, including linear and nonlinear, on the healing process are investigated. A three-dimensional finite element model of the radius bone along with a mechano-regulation theory was used to study the healing performance. Two mechanical stimuli of octahedral shear strain and interstitial fluid flow are considered as the propelling factors of healing. The results of this study indicated that increasing the bone plate's initial elastic modulus accelerates the healing process. However, by increasing the initial Young's modulus of the plate more than 100 GPa, no noticeable alteration is observed. The degradation time period of the plate was seen to be directly related to the speed of the healing process. It is shown, however, that by increasing the degradation time period to more than 8 weeks, the healing performance remains almost unchanged. The results of this work showed that the application of plates with a high enough initial elastic modulus and degradation period can prevent the healing process from decelerating.
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Affiliation(s)
- Sara Kowsar
- Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar, Iran
| | - Reza Soheilifard
- Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar, Iran.
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Cohen DJ, Scott KM, Kulkarni AN, Wayne JS, Boyan BD, Schwartz Z. Acellular mineralized allogenic block bone graft does not remodel during the 10 weeks following concurrent implant placement in a rabbit femoral model. Clin Oral Implants Res 2019; 31:37-48. [PMID: 31545532 DOI: 10.1111/clr.13544] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/22/2019] [Accepted: 09/08/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Due to bone loss, endosseous implants often require addition of a bone graft to support adequate primary fixation, bone regeneration, and osseointegration. The aim of this study was to compare effectiveness of autogenic and allogenic bone grafts when used during simultaneous insertion of the implant. MATERIALS AND METHODS 4-mm-diameter rabbit diaphyseal bone autografts or allografts (n = 16/group) with a 3.2-mm pre-drilled hole in the center were placed into a 4 mm defect in the proximal femur of 3.5 kg male New Zealand White rabbits. Machined 3.2 × 10 mm grit-blasted, acid-etched titanium-aluminum-vanadium (Ti6Al4V) implants were placed. Control implants were placed into progressively drilled 3.2-mm holes in the contralateral limbs. Post-insertion day 70, samples were analyzed by micro-CT and calcified histology, or by mechanical torque and push-out testing followed by decalcified histology. RESULTS Both grafts were integrated with the native bone. Micro-CT showed less bone volume (BV) and bone volume/total volume (BV/TV) in the allograft group, but histology showed no differences in BV or BV/TV between groups. Allograft lacked living cells, whereas autograft was cellularized. No difference was found in maximum removal torque between groups. Compressive loading at the graft-to-bone interface was significantly lower in allograft compared with autograft groups. CONCLUSIONS There was less bone in contact with the implant and significantly less maximum compressive load in the allograft group compared with autograft. The allograft remained acellular as demonstrated by empty lacunae. Taken together, block allograft implanted simultaneously with an implant produces a poorer quality bone compared with autograft.
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Affiliation(s)
- D Joshua Cohen
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Kayla M Scott
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Aniket N Kulkarni
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Jennifer S Wayne
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Barbara D Boyan
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Zvi Schwartz
- College of Engineering, Virginia Commonwealth University, Richmond, VA, USA.,Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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Dai Z, Li Y, Yan Y, Wan R, Ran Q, Lu W, Qiao B, Li H. Evaluation of the internal fixation effect of nano-calcium-deficient hydroxyapatite/poly-amino acid composite screws for intraarticular fractures in rabbits. Int J Nanomedicine 2018; 13:6625-6636. [PMID: 30425478 PMCID: PMC6201990 DOI: 10.2147/ijn.s173358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Objective To evaluate the internal fixation effect of nano-calcium-deficient hydroxyapatite/poly-amino acid (n-CDHA/PAA) composite screws in the intraarticular fracture model. Materials and methods A total of 35 New Zealand White rabbits were used in a bilateral femoral intercondylar fracture model and randomly divided into two groups. n-CDHA/PAA screws were used in the experimental group, and medical metal screws were used in the control group. The fracture condition, range of motion, and the screw push-out strength were assessed, and an arthroscopic examination of knee joint was performed at 4, 8, and 12 weeks after surgery. The biodegradation of the n-CDHA/PAA screws in vivo was tested through weighing, and changes in screw structure were assessed by X-ray diffraction at 12 weeks after surgery. Results The general situation of all animals was good and showed no incision infection and dehiscence after surgery. X-ray scanning showed that significant callus growth was present in both groups at 4 weeks after surgery, and there was no significant difference (P>0.05) in the Lane-Sandhu score between the experimental and control groups at all time points after surgery. There were no statistically significant differences (P>0.05) in the range of motion and Oswestry Arthroscopy Score of arthroscopic examination of the knee joints between the two groups. The screw push-out strength of the control group was stronger than that of the experimental group at 4 weeks after surgery (P<0.05), but after that, there was no significant difference between the groups (P>0.05). The degradation tests showed that the n-CDHA/PAA screws degraded gradually after implantation, and the weight loss rate was approximately 16% at 12 weeks after surgery. The X-ray diffraction results showed that the crystal structure of the outer surface of the n-CDHA/PAA screw has changed at 12 weeks after surgery. Conclusion The n-CDHA/PAA screw is an effective and safe implant as a potential internal fixation device for an intercondylar fracture of the femur, and its internal fixation effect was similar to that of medical metal screw.
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Affiliation(s)
- Zhenyu Dai
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, People's Republic of China,
| | - Yue Li
- Department of Clinical Laboratory, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yonggang Yan
- College of Physical Science and Technology, Sichuan University, Chengdu, People's Republic of China,
| | - Ruijie Wan
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, People's Republic of China,
| | - Qiang Ran
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, People's Republic of China,
| | - Weizhong Lu
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, People's Republic of China,
| | - Bo Qiao
- Department of Orthopedics, the First Affiliated Hospital, Chongqing Medical University, Chongqing, People's Republic of China
| | - Hong Li
- College of Physical Science and Technology, Sichuan University, Chengdu, People's Republic of China,
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Biodegradable Materials for Bone Repair and Tissue Engineering Applications. MATERIALS 2015; 8:5744-5794. [PMID: 28793533 PMCID: PMC5512653 DOI: 10.3390/ma8095273] [Citation(s) in RCA: 354] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/09/2015] [Accepted: 08/24/2015] [Indexed: 12/21/2022]
Abstract
This review discusses and summarizes the recent developments and advances in the use of biodegradable materials for bone repair purposes. The choice between using degradable and non-degradable devices for orthopedic and maxillofacial applications must be carefully weighed. Traditional biodegradable devices for osteosynthesis have been successful in low or mild load bearing applications. However, continuing research and recent developments in the field of material science has resulted in development of biomaterials with improved strength and mechanical properties. For this purpose, biodegradable materials, including polymers, ceramics and magnesium alloys have attracted much attention for osteologic repair and applications. The next generation of biodegradable materials would benefit from recent knowledge gained regarding cell material interactions, with better control of interfacing between the material and the surrounding bone tissue. The next generations of biodegradable materials for bone repair and regeneration applications require better control of interfacing between the material and the surrounding bone tissue. Also, the mechanical properties and degradation/resorption profiles of these materials require further improvement to broaden their use and achieve better clinical results.
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Hossain KMZ, Parsons AJ, Rudd CD, Ahmed I, Thielemans W. Mechanical, crystallisation and moisture absorption properties of melt drawn polylactic acid fibres. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.02.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Effect of Synthesis Temperature on the Crystallization and Growth of In Situ Prepared Nanohydroxyapatite in Chitosan Matrix. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/897468] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Hydroxyapatite nanoparticles (nHA) have been used in different biomedical applications where certain particle size distribution and morphology are required. Chitosan/hydroxyapatite (CS/HA) nanocomposites were prepared using in situ coprecipitation technique and the effect of the reaction temperature on the crystallization and particle growth of the prepared nanohydroxyapatite particles was investigated. The composites were prepared at different synthesis temperatures (−10, 37, and 60°C). XRD, FTIR, thermal analysis, TEM and SEM techniques were used to characterize the prepared specimens. It was found that the increase in processing temperature had a great affect on particle size and crystal structure of nHA. The low temperature (−10°C) showed inhabitation of the HA growth in c-direction and low crystallinity which was confirmed using XRD and electron diffraction pattern of TEM. Molar ratio of the bone-like apatite layer (Ca/P) for the nanocomposite prepared at 60°C was higher was higher than the composites prepared at lower temperatures (37 and −10°C).
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Rubin DJ, Nia HT, Desire T, Nguyen PQ, Gevelber M, Ortiz C, Joshi NS. Mechanical Reinforcement of Polymeric Fibers through Peptide Nanotube Incorporation. Biomacromolecules 2013; 14:3370-5. [DOI: 10.1021/bm4008293] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel J. Rubin
- School
of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Wyss Institute for Biologically Inspired Engineering, Boston, Massachusetts 02115, United States
| | - Hadi T. Nia
- Department
of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Thierry Desire
- Department
of Mechanical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Peter Q. Nguyen
- School
of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Wyss Institute for Biologically Inspired Engineering, Boston, Massachusetts 02115, United States
| | - Michael Gevelber
- Department
of Mechanical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Christine Ortiz
- Department
of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Neel S. Joshi
- School
of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Wyss Institute for Biologically Inspired Engineering, Boston, Massachusetts 02115, United States
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Pittarella P, Antonioli D, Rizzi M, Laus M, Renò F. Vitamin E acetate addition to poly(d,l)lactic acid modifies its mechanical behavior without affecting biocompatibility. J Appl Polym Sci 2013. [DOI: 10.1002/app.39970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pamela Pittarella
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
| | - Diego Antonioli
- Department of Sciences and Technological Innovation; University of Eastern Piedmont “A. Avogadro,” V. Teresa Michel 11; 15121 Alessandria Italy
| | - Manuela Rizzi
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
| | - Michele Laus
- Department of Sciences and Technological Innovation; University of Eastern Piedmont “A. Avogadro,” V. Teresa Michel 11; 15121 Alessandria Italy
| | - Filippo Renò
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
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Felfel RM, Ahmed I, Parsons AJ, Rudd CD. Bioresorbable composite screws manufactured via forging process: pull-out, shear, flexural and degradation characteristics. J Mech Behav Biomed Mater 2012; 18:108-22. [PMID: 23262309 DOI: 10.1016/j.jmbbm.2012.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 11/18/2012] [Accepted: 11/25/2012] [Indexed: 12/16/2022]
Abstract
Bioresorbable screws have the potential to overcome some of the complications associated with metallic screws currently in use. Removal of metallic screws after bone has healed is a serious issue which can lead to refracture due to the presence of screw holes. Poly lactic acid (PLA), fully 40 mol% P(2)O(5) containing phosphate unidirectional (P40UD) and a mixture of UD and short chopped strand random fibre mats (P40 70%UD/30%RM) composite screws were prepared via forging composite bars. Water uptake and mass loss for the composite screws manufactured increased significantly to ∼1.25% (P=0.0002) and ∼1.1% (P<0.0001), respectively, after 42 days of immersion in PBS at 37 °C. The initial maximum flexural load for P40 UD/RM and P40 UD composite screws was ∼60% (P=0.0047) and ∼100% (P=0.0037) higher than for the PLA screws (∼190 N), whilst the shear load was slightly higher in comparison to PLA (∼2.2 kN). The initial pull-out strengths for the P40 UD/RM and PLA screws were similar whereas that for P40 UD screws was ∼75% higher (P=0.022). Mechanical properties for the composite screws decreased initially after 3 days of immersion and this reduction was ascribed to the degradation of the fibre/matrix interface. After 3 days interval the mechanical properties (flexural, shear and pull-out) maintained their integrity for the duration of the study (at 42 days). This property retention was attributed to the chemical durability of the fibres used and stability of the matrix properties during the degradation process. It was also deemed necessary to enhance the fibre/matrix interface via use of a coupling agent in order to maintain the initial mechanical properties acquired for the required period of time. Lastly, it is also suggested that the degrading reinforcement fibres may have the potential to buffer any acidic products released from the PLA matrix.
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Affiliation(s)
- R M Felfel
- Faculty of Engineering, Division of Materials, Mechanics and Structures, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
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