Article
Engineering, Manufacturing
Mengyuan Hao, Jun Wang, Runguo Wang, Min Gong, Liang Zhang, Dongrui Wang, Yonglai Lu, Liqun Zhang, Xiang Lin
Summary: The mechanical dependence of 3D-printed thermoplastic polyurethane (TPU) reinforced with continuous carbon fibres (CCFs) on selected printing conditions was investigated. The study evaluated the impact of layer thickness, printing speed, and layer number on the tensile, flexural, and cryo-impact properties of the printed specimens. Results showed significant improvements in tensile yield stress and flexural strength when using CCFs reinforcement, with preimpregnated CCFs (PCCFs) providing the highest enhancement. The structure-property relationship was established through interface microstructure detection and simulation.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Engineering, Chemical
Wentong Gao, Baoyin Yu, Shuhang Li, Shao Chen, Yuhong Zhu, Bo Zhang, Yilei Zhang, Hong Cai, Bing Han
Summary: SEBS-based thermoplastic elastomers modified by PA6 with maleic anhydride grafted copolymer as the compatibilizer showed improved mechanical properties and transformed the surface from hydrophobic to hydrophilic.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Materials Science, Composites
Siham Ez-Zahraoui, Salma Sabir, Sabah Berchane, Rachid Bouhfid, Abou El Kacem Qaiss, Fatima-Zahra Semlali Aouragh Hassani, Mounir El Achaby
Summary: The study investigated the effect of TPU elastomer on the ductile character of fly ash-reinforced polypropylene composites, demonstrating that the addition of TPU can restore ductility without sacrificing stiffness. A balance between the ratios of rigid particles and elastomer in a polymer matrix produces a multiphase polymer system with optimal mechanical performance, making them promising materials for engineering applications.
POLYMER COMPOSITES
(2023)
Article
Agricultural Engineering
Sylvain Foret, Brahim Mazian, Vassileios Bekas, Felipe C. B. Martins, Osvaldo H. Campanella, Patrick Perre, Pedro E. D. Augusto
Summary: This study assessed the feasibility and efficiency of incorporating hemp shives as a filler in thermoplastic wheat starch, showing that the addition of shives notably enhanced the mechanical properties of the biocomposite, reaching optimal performance at 40% concentration. However, higher concentrations led to reduced strength due to collapsing shive cells during the extrusion process, although the water uptake was decreased, enhancing dimensional stability.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Medicinal
Olimpia Ortiz-Arrabal, Ainhoa Irastorza-Lorenzo, Fernando Campos, Miguel Angel Martin-Piedra, Victor Carriel, Ingrid Garzon, Paula Avila-Fernandez, Maria Jose de Frutos, Emilio Esteban, Javier Fernandez, Agustin Janer, Antonio Campos, Jesus Chato-Astrain, Miguel Alaminos
Summary: Marine-origin polysaccharides, especially agarose, have been extensively studied as scaffolds for tissue engineering. We have developed new fibrin-agarose (FA) biomaterials using different types and concentrations of agaroses, which showed high biocompatibility and varied biomechanical properties. In vivo experiments demonstrated the biocompatibility of FA tissues and histological analysis indicated a pro-regenerative process with M2-type CD206-positive macrophages. These findings confirm the clinical potential of FA biomaterials for tissue engineering applications, allowing for the selection of specific agarose types and concentrations to meet desired biomechanical properties and in vivo reabsorption times.
Article
Polymer Science
Arturo Tagliabue, Fernando Eblagon, Frank Clemens
Summary: Magnetorheological elastomers (MRE) have the ability to change stiffness by applying a magnetic field. Thermoplastic elastomers (TPE) have been investigated as matrix material, while different surface treatments of carbonyl iron particles (CIPs) as filler affect the performance. The MR effect under static and dynamic load shows significant results.
Article
Polymer Science
Barbara Adrover-Monserrat, Silvia Garcia-Vilana, David Sanchez-Molina, Jordi Lluma, Ramon Jerez-Mesa, J. Antonio Travieso-Rodriguez
Summary: This study aims to characterize the viscoelastic behavior of PEBA and provide reference values for constitutive model parameters for mechanical behavior simulation. The results show that a Quasi-Linear Visco-Elastic (QLVE) model accurately predicts the relaxation test results and fits well with the measurements of fast cyclic loading tests.
Article
Engineering, Biomedical
Pinghua Ou, Taomei Zhang, Jianying Wang, Cui Li, Chunsheng Shao, Jianming Ruan
Summary: Ti-45Zr alloy, a new metallic biomaterial, demonstrates excellent cell compatibility and osteointegration ability, making it a suitable dental implant material.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2022)
Article
Polymer Science
Pratiksha Awasthi, Shib Shankar Banerjee
Summary: The researchers successfully developed a biomimetic mechano-adaptive thermoplastic elastomeric material that can improve its mechanical properties through water stimulation. The improved mechanical properties were achieved through the formation of nanosized CaSO4 crystals and strong interactions between the filler particles. This technique allows for reversible changes in the TPE material's dynamic stiffness.
Article
Polymer Science
Fatma Ofkeli, Didem Demir, Nimet Bolgen
Summary: The study developed biomimetic chitosan: gelatin cryogels for bone tissue engineering, which combine the biological recognition of natural polymers with the interconnected porosity of cryogels and properties mimicking bone like hydroxyapatite. The research evaluated the effect of chitosan and gelatin ratios on the final properties of the cryogels, showing promising biocompatibility and favorable properties for bone tissue engineering applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Iris Cristina Becerril-Rodriguez, Frederik Claeyssens
Summary: Tissue engineering for soft tissue has made significant advances, but challenges remain. The main strategy is the development of biomaterials capable of regenerating damaged tissue and mimicking the host environment. Synthetic polymers, particularly elastomers, are of interest due to their mechanical properties similar to soft tissue. We studied a relatively new polymer, poly(glycerol sebacate) methacrylate (PGS-M), and its application in fabricating scaffolds for soft tissue engineering.
Article
Polymer Science
Yongsheng Zhao, Jialiang Li, Yuqi Ma, Yangwei Wang, Chaobo Jiang, Haonan Yan, Ruosong Hao, Jianbin Qin, Xuetao Shi, Guangcheng Zhang
Summary: Chemically crosslinking can improve the mechanical strength, dimensional stability, and heat-resistance of thermoplastic polyolefin elastomers. However, chemically crosslinked elastomers often experience reduced flowability and strong shrinkage after reprocessing. In this study, an olefin block copolymer (OBC) elastomer was chemically modified with a dynamic boronic ester bond, inspired by the vitrimer concept. The resulting OBC vitrimer possess tunable composition of dynamic Boron-Oxygen (B-O) bonds and showed good creep-resistance, reprocessability, and excellent mechanical properties even at high temperatures.
Article
Engineering, Electrical & Electronic
Mohammed El Yaagoubi, Manuel Schroedl, Dietmar Schwegler, Bernhard Muenster
Summary: This study developed strontium ferrite filled thermoplastic elastomers and analyzed the influence of filler content on mechanical and magnetic properties.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Materials Science, Textiles
M. R. M. Asyraf, K. Z. Hazrati, Desmond Daniel Chin Vui Sheng, M. Rafidah, W. Ashraf, Emrah Madenci, Yasin Onuralp Ozkilic, Ceyhun Aksoylu, N. M. Nurazzi
Summary: Lignocellulosic fibre from forest biomass has advantages in product development, and sugar palm fibre (SPF) has shown promise as a reinforcement in high-strength biocomposites. However, SPF exhibits high water absorption properties, which affects its performance when binding with thermoplastic matrix.
FIBERS AND POLYMERS
(2023)
Article
Materials Science, Biomaterials
Xueling Xiao, Zhanhong Liu, Rui Shu, Jiangyue Wang, Xiangdong Zhu, Ding Bai, Hai Lin
Summary: A strong-interacted bone graft was designed and synthesized by modifying hydroxyapatite (HA) with a lactide-caprolactone copolymer (PLCL) to improve component homogeneity and mechanical properties. The bone graft degraded in a spatiotemporal model and exhibited excellent biocompatibility and osteogenic ability. When applied to rat periodontal bone defects, the bone graft showed non-inferior bone regeneration compared to the commercial product.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Physical
Marta Piatek-Hnat, Kuba Bomba, Janusz P. Kowalski-Stankiewicz, Jakub Peksinski, Agnieszka Kozlowska, Jacek G. Sosnicki, Tomasz J. Idzik, Beata Schmidt, Krzysztof Kowalczyk, Marta Walo, Grzegorz Mikolajczak, Agnieszka Kochmanska
Summary: Poly(xylitol dicarboxylate-co-diol dicarboxylate) elastomers can be synthesized using a combination of different monomers, resulting in materials with tailored specific properties. E-beam treatment at 100 kGy can modify the materials further. Various tests, including tensile tests and thermal analysis, were conducted on the materials both before and after modification, showing changes in physical and thermal properties. Degradation susceptibility of the elastomers to enzymatic and hydrolytic degradation was also investigated.
Article
Polymer Science
Marta Piatek-Hnat, Kuba Bomba, Janusz P. Kowalski-Stankiewicz, Jakub Peksinski, Agnieszka Kozlowska, Jacek G. Sosnicki, Tomasz J. Idzik, Beata Schmidt, Krzysztof Kowalczyk, Marta Walo, Agnieszka Kochmanska
Summary: Eight xylitol-based elastomers were synthesized using different monomer combinations and further modified with e-beam treatment. The materials were subjected to various tests before and after radiation modification.
Article
Chemistry, Physical
Martyna Sokolowska, Jagoda Nowak-Grzebyta, Ewa Stachowska, Miroslawa El Fray
Summary: In this study, a series of poly(butylene succinate)-co-(dilinoleic succinate) (PBS-DLS) copolymers were synthesized via a sustainable route, and their properties were compared with materials synthesized using heterogenous catalysts. The results showed that materials synthesized using biocatalysts had a more blocky segmental distribution and higher crystallinity.
Article
Materials Science, Multidisciplinary
Christian Mielke, Justus Kuhnigk, Doris Pospiech, Hartmut Komber, Regine Boldt, Albena Lederer, Miroslawa El Fray, Tobias Standau, Holger Ruckdaeschel, Volker Altstaedt, Brigitte Voit
Summary: This study successfully synthesized PBT copolyesters with short-chain branched units, which achieved high expansion and homogeneous cell morphology by altering the crystallinity, glass transition temperatures, and rheological behavior of PBT. The new terpolyesters have properties comparable to PBT treated with chain extenders.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
Barbara Zawidlak-Wegrzynska, Miroslawa El Fray, Karolina Janiczak, Roman Kustosz, Malgorzata Gonsior, Beniamin Oskar Grabarek
Summary: This study evaluated the inflammatory responses to the implantation of PET/DLA biomaterials in muscle tissue and observed the healing process after 12 weeks. The results showed that PET/DLA exhibited good biocompatibility and stability, indicating great potential for medical applications.
Review
Polymer Science
Gokhan Demirci, Malwina J. Niedzwiedz, Nina Kantor-Malujdy, Miroslawa El Fray
Summary: Novel advanced biomaterials, such as elastomer-hydrogel systems, have gained attention for their high biocompatibility, injectability, controlled porosity, and antimicrobial properties. These systems, inspired by nature, have potential applications in soft tissue engineering.
Article
Biochemistry & Molecular Biology
Karolina Rolinska, Magdalena Mazurek-Budzynska, Pawel G. Parzuchowski, Dominik Wolosz, Maria Balk, Krzysztof Goracy, Miroslawa El Fray, Piotr Polanowski, Andrzej Sikorski
Summary: This research focuses on the synthesis and structure-properties relationship of poly(carbonate-urea-urethane) (PCUU) systems and investigates their shape-memory effect capability. The study also analyzes the relationship between the synthesized compounds and computer simulations using the Monte Carlo method. The results show that the synthesized PCUUs exhibit good mechanical properties and shape-memory effects.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Polymer Science
Iskenderbek Elchiev, Gokhan Demirci, Miroslawa El Fray
Summary: Photocurable biomaterials that can be rapidly cured using UV light are becoming popular in advanced medical applications. By modifying the structure of coumarin and combining it with a bio-based fatty acid dimer derivative, we designed a dynamic network that can crosslink and re-crosslink under variable wave lengths of UV light. This biomaterial can be injected and cured in situ upon UV light exposure, making it suitable for future medical applications.
Article
Polymer Science
Moein Zarei, Marek J. Zwir, Ewa Wisniewska, Beata Michalkiewicz, Miroslawa El Fray
Summary: In this work, the structure-properties relationship of a biodegradable copolymer, PBS-DLS, modified with PEG, was investigated for its processibility in 3D printing and electrospinning. The copolymers were found to be easily processible through both techniques, and the addition of PEG improved their elasticity and hydrophilicity. These findings highlight the potential of these new materials for various applications, including the biomedical sector.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Materials Science, Composites
Mohamed S. Hasanin, Yasser Elhenawy, Shereen M. S. Abdel-Hamid, Yasser Fouad, Toderas Monica, O. A. Al-Qabandi, Miroslawa El Fray, Mohamed Bassyouni
Summary: In this study, a novel nanocomposite formulation was developed using biopolymers as capping and stabilizing agents to create bimetallic nanoparticles. The obtained characteristics showed the presence of a nanostructure involving bimetallic nanoparticles. The formulation exhibited excellent biological activity, including high biocompatibility and effective anticancer and antimicrobial activities, as well as antioxidant activity.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Martyna Sokolowska, Jagoda Nowak-Grzebyta, Ewa Stachowska, Piotr Miadlicki, Magdalena Zdanowicz, Beata Michalkiewicz, Miroslawa El Fray
Summary: A library of furan-based block copolymers was synthesized via a two-step polycondensation reaction using Candida antarctica lipase B as biocatalyst. The resulting copolymers were analyzed using NMR, FTIR, and GPC. XRD, DHM, and DSC were used to study the crystallization behavior and thermal properties, while OTR was measured to verify the oxygen permeability of the furan-based copolyesters. The chain length of α,ω-aliphatic linear diols used in the synthesis had a significant effect on the material properties.
Article
Chemistry, Multidisciplinary
Malwina J. J. Niedzwiedz, Wojciech Ignaczak, Peter Sobolewski, Agata Goszczynska, Gokhan Demirci, Miroslawa El Fray
Summary: This study aims to synthesize photocurable ester-urethane macromonomers using a heterometallic magnesium-titanium catalyst, and investigate their properties and cytotoxicity. The synthesis progress and macromonomer characteristics were analyzed using spectroscopy and chromatography techniques. The photocuring process and thermal properties of the resulting networks were studied, and in vitro cytotoxicity screening showed high cell viability. Overall, the results suggest that this heterometallic catalyst can be an attractive alternative for injectable and photocurable materials for medical applications.
Article
Chemistry, Physical
Malwina J. Niedzwiedz, Gokhan Demirci, Nina Kantor-Malujdy, Miroslawa El Fray
Summary: This study investigates the influence of curing conditions on the photopolymerization process of telechelic macromonomers derived from plant-based fatty acids. The results showed that the concentration of photoinitiator, light intensity, and oxygen presence had significant effects on the photopolymerization kinetics and properties of the resulting polymer networks.
Article
Biochemistry & Molecular Biology
Bartlomiej Grygorcewicz, Rafal Rakoczy, Marta Roszak, Maciej Konopacki, Marian Kordas, Agnieszka Piegat, Natalia Serwin, Elzbieta Cecerska-Heryc, Miroslawa El Fray, Barbara Dolegowska
Summary: This study evaluates the use of a rotating magnetic field (RMF) to enhance the adsorption rate of bacteriophages, thereby improving their infection efficiency. The results indicate that RMF exposure significantly reduces the time for bacteriophage adsorption to host cells and increases their adsorption rate.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2022)
Article
Thermodynamics
Adrian Krzysztof Antosik, Karolina Mozelewska, Marta Piatek-Hnat, Zbigniew Czech, Marcin Bartkowiak
Summary: The purpose of this work was to investigate the impact of kaolin on single-sided tapes' self-adhesive properties. Through testing and explanation, single-sided self-adhesive tapes with new properties such as increased temperature resistance, reduced shrinkage, and improved flammability resistance were obtained.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Biomedical
Lin-Lin Luo, Jie Xu, Bing-Qiao Wang, Chen Chen, Xi Chen, Qiu-Mei Hu, Yu-Qiu Wang, Wan-Yun Zhang, Wan-Xiang Jiang, Xin-Ting Li, Hu Zhou, Xiao Xiao, Kai Zhao, Sen Lin
Summary: A novel AAV serotype, AAVYC5, introduced in this study, showed more efficient transduction into multiple retinal layers compared to AAV2, and enabled successful delivery of anti-angiogenic molecules in mice and non-human primates.
