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de Souza JR, Cardoso LM, de Toledo PTA, Rahimnejad M, Kito LT, Thim GP, Campos TMB, Borges ALS, Bottino MC. Biodegradable electrospun poly(L-lactide-co-ε-caprolactone)/polyethylene glycol/bioactive glass composite scaffold for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2024; 112:e35406. [PMID: 38676957 PMCID: PMC11288622 DOI: 10.1002/jbm.b.35406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/04/2024] [Accepted: 04/02/2024] [Indexed: 04/29/2024]
Abstract
The field of tissue engineering has witnessed significant advancements in recent years, driven by the pursuit of innovative solutions to address the challenges of bone regeneration. In this study, we developed an electrospun composite scaffold for bone tissue engineering. The composite scaffold is made of a blend of poly(L-lactide-co-ε-caprolactone) (PLCL) and polyethylene glycol (PEG), with the incorporation of calcined and lyophilized silicate-chlorinated bioactive glass (BG) particles. Our investigation involved a comprehensive characterization of the scaffold's physical, chemical, and mechanical properties, alongside an evaluation of its biological efficacy employing alveolar bone-derived mesenchymal stem cells. The incorporation of PEG and BG resulted in elevated swelling ratios, consequently enhancing hydrophilicity. Thermal gravimetric analysis confirmed the efficient incorporation of BG, with the scaffolds demonstrating thermal stability up to 250°C. Mechanical testing revealed enhanced tensile strength and Young's modulus in the presence of BG; however, the elongation at break decreased. Cell viability assays demonstrated improved cytocompatibility, especially in the PLCL/PEG+BG group. Alizarin red staining indicated enhanced osteoinductive potential, and fluorescence analysis confirmed increased cell adhesion in the PLCL/PEG+BG group. Our findings suggest that the PLCL/PEG/BG composite scaffold holds promise as an advanced biomaterial for bone tissue engineering.
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Affiliation(s)
- Joyce R. de Souza
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of São José dos Campos, São Paulo State University (UNESP), São José dos Campos, São José dos Campos, SP 12245-000, Brazil
| | - Lais M. Cardoso
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of São José dos Campos, São Paulo State University (UNESP), São José dos Campos, São José dos Campos, SP 12245-000, Brazil
| | - Priscila T. A. de Toledo
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, SP 16015-050, Brazil
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Letícia T. Kito
- Department of Materials Manufacture and Automation, Technological Institute of Aeronautics (ITA), São José dos Campos, SP 12228-900, Brazil
| | - Gilmar P. Thim
- Department of Materials Manufacture and Automation, Technological Institute of Aeronautics (ITA), São José dos Campos, SP 12228-900, Brazil
| | - Tiago M. B. Campos
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, SP 17012-901, Brazil
| | - Alexandre L. S. Borges
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of São José dos Campos, São Paulo State University (UNESP), São José dos Campos, São José dos Campos, SP 12245-000, Brazil
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Liu T, Liu S, Shi Y, Zhang Z, Ding S, Hou K, Zhang W, Meng X, Li F. Electrospun nanofiber membranes for rapid liver hemostasis via N-alkylated chitosan doped chitosan/PEO. Int J Biol Macromol 2024; 258:128948. [PMID: 38143056 DOI: 10.1016/j.ijbiomac.2023.128948] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
The ideal hemostatic agents should be able to stop bleeding quickly and avoid secondary bleeding caused by adhesion with blood clots during dressing change. Herein, a hydrophobic electrospun nanofiber membrane was prepared for achieving hemostasis, rationally targeting both attributes, via doping N-alkylated chitosan (N-CS) grafted with octadecyl into chitosan/polyethylene oxide (PEO). In vitro and in vivo coagulation tests showed that CPNs doped with small amounts of N-CS (CPN31) could significantly shorten hemostasis time and promote the formation of more stable and stronger blood clots. In particular, the whole blood clotting time of CPN31 (58.8 ± 2.2 s) was significantly lower than that of chitosan/PEO (CPN0) nanofiber membrane (67 ± 3.5 s) and the medical sterile gauze (86.7 ± 0.6 s). Furthermore, due to the hemophobic nature of CPNs, blood wetting of the dressing was severely limited and blood can coagulated at the site of liver injury in rats, thus reducing blood loss and allowing rapid removal of the dressing without triggering secondary hemorrhage. The CPN31 exhibited excellent hemostasis properties, easy to remove, blood compatibility, biocompatibility and promoting fibroblast proliferation properties. This hydrophobic CPNs is a promising biological adhesive for hemorrhage control.
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Affiliation(s)
- Tao Liu
- Medical Support Technology Research Department, Academy of Military Sciences, People's Liberation Army, Tianjin 300161, China; Key Laboratory of Industrial Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Shuhan Liu
- Key Laboratory of Industrial Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yihan Shi
- Medical Support Technology Research Department, Academy of Military Sciences, People's Liberation Army, Tianjin 300161, China
| | - Zhuoran Zhang
- General Hospital of Xinjiang Military Command, Xinjiang 830002, China
| | - Sheng Ding
- Medical Support Technology Research Department, Academy of Military Sciences, People's Liberation Army, Tianjin 300161, China
| | - Kexin Hou
- Medical Support Technology Research Department, Academy of Military Sciences, People's Liberation Army, Tianjin 300161, China
| | - Wen Zhang
- Shandong Academy of Pharmaceutical Sciences, Shandong Engineering Research Center of Novel Sustained and Controlled Release Formulations and Targeted Drug Delivery Systems, Jinan 250101, Shandong Province, China
| | - Xin Meng
- Key Laboratory of Industrial Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Fan Li
- Medical Support Technology Research Department, Academy of Military Sciences, People's Liberation Army, Tianjin 300161, China.
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Luo C, Liu S, Luo W, Wang J, He H, Chen C, Xiao L, Liu C, Li Y. Fabrication of PLCL Block Polymer with Tunable Structure and Properties for Biomedical Application. Macromol Biosci 2023; 23:e2200507. [PMID: 36645702 DOI: 10.1002/mabi.202200507] [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: 11/22/2022] [Revised: 12/26/2022] [Indexed: 01/17/2023]
Abstract
Biodegradable materials are pivotal in the biomedical field, where how to precisely control their structure and performance is critical for their translational application. In this study, poly(L-lactide-b-ε-caprolactone) block copolymers (bPLCL) with well-defined segment structure are obtained by a first synthesis of poly(ε-caprolactone) soft block, followed by ring opening polymerization of lactide to form poly(L-lactide acid) hard block. The pre-polymerization allows for fabrication of bPLCL with the definite compositions of soft/hard segment while preserving the individual segment of their special soft or hard segment. These priorities make the bPLCL afford biodegradable polymer with better mechanical and biodegradable controllability than the random poly(L-lactide-co-ε-caprolactone) (rPLCL) synthesized via traditional one-pot polymerization. 10 mol% ε-caprolactone introduction can result in a formation of an elastic polymer with elongation at break of 286.15% ± 55.23%. Also, bPLCL preserves the unique crystalline structure of the soft and hard segments to present a more sustainable biodegradability than the rPLCL. The combinative merits make the pre-polymerization technique a promising strategy for a scalable production of PLCL materials for potential biomedical application.
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Affiliation(s)
- Chenmin Luo
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shengyang Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wei Luo
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Jing Wang
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hongyan He
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Can Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia
| | - Changsheng Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Yulin Li
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
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Koliqi R, Grapci AD, Selmani PB, Uskoković V. Gene Expression Effects of the Delivery of SN-38 via Poly(D-L-lactide-co-caprolactone) Nanoparticles Comprising Dense and Collapsed Poloxamer Coronae. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09672-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Erol I, Cigerci IH, Özkara A, Akyıl D, Aksu M. Synthesis of Moringa oleifera coated silver-containing nanocomposites of a new methacrylate polymer having pendant fluoroarylketone by hydrothermal technique and investigation of thermal, optical, dielectric and biological properties. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1231-1255. [PMID: 35200112 DOI: 10.1080/09205063.2022.2046986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Firstly, silver nanoparticles were synthesized by green synthesis method from Moringa oleifera extract. Nanocomposites containing newly synthesized methacrylate polymer, poly 2-(4-fluorophenyl)-2-oxoethyl-2-methylprop-2-enoate (PFPAMA) and Ag nanoparticles from M. oleifera in different mass ratios (1, 3, and 5 wt%) were synthesized using the hydrothermal method. The morphological and structural properties of the materials have been examined by SEM, FTIR, UV, TGA, and XRD techniques. The activation energies (Ea) related to thermal decomposition of the nanocomposites were estimated by the Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods by using non-isothermal TGA experiments. The thermal stability, glass transition temperature (Tg), and the thermal decomposition activation energy (Ea) values of nanocomposites were increased by increasing the Ag nanoparticles amount on the composite. The dielectric constant (ε'), the dielectric loss factor (ε″) and ac conductivity of neat PFPAMA and nanocomposites were also measured for the frequency range of 100 Hz to 2 kHz at 25 °C. It was seen that the frequency dependence of the dielectric constant and dielectric loss factor decreased with increasing frequency. The biological activities of nanocomposites against gram-positive (Staphylococcus aureus), gram-negative (Escherichia coli) bacteria and Candida krusei yeast were also tested. The antibacterial effect increased against both bacterial species as the amount of Ag nanoparticles from M. oleifera in the nanocomposites increased. In addition, the wound healing properties of nanocomposites were investigated by the scratch wound test.
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Affiliation(s)
- Ibrahim Erol
- Department of Chemistry, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Ibrahim Hakkı Cigerci
- Department of Molecular Biology and Genetic, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Arzu Özkara
- Department of Molecular Biology and Genetic, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Dilek Akyıl
- Department of Molecular Biology and Genetic, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Mecit Aksu
- Department of Chemistry, Faculty of Science and Arts, Düzce Universty, Düzce, Turkey
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