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Shlapakova LE, Pryadko AS, Zharkova II, Volkov A, Kozadaeva M, Chernozem RV, Mukhortova YR, Chesnokova D, Zhuikov VA, Zeltser A, Dudun AA, Makhina T, Bonartseva GA, Voinova VV, Shaitan KV, Romanyuk K, Kholkin AL, Bonartsev AP, Surmeneva MA, Surmenev RA. Osteogenic Potential and Long-Term Enzymatic Biodegradation of PHB-based Scaffolds with Composite Magnetic Nanofillers in a Magnetic Field. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39377758 DOI: 10.1021/acsami.4c06835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/09/2024]
Abstract
Millions of people worldwide suffer from musculoskeletal damage, thus using the largest proportion of rehabilitation services. The limited self-regenerative capacity of bone and cartilage tissues necessitates the development of functional biomaterials. Magnetoactive materials are a promising solution due to clinical safety and deep tissue penetration of magnetic fields (MFs) without attenuation and tissue heating. Herein, electrospun microfibrous scaffolds were developed based on piezoelectric poly(3-hydroxybutyrate) (PHB) and composite magnetic nanofillers [magnetite with graphene oxide (GO) or reduced GO]. The scaffolds' morphology, structure, mechanical properties, surface potential, and piezoelectric response were systematically investigated. Furthermore, a complex mechanism of enzymatic biodegradation of these scaffolds is proposed that involves (i) a release of polymer crystallites, (ii) crystallization of the amorphous phase, and (iii) dissolution of the amorphous phase. Incorporation of Fe3O4, Fe3O4-GO, or Fe3O4-rGO accelerated the biodegradation of PHB scaffolds owing to pores on the surface of composite fibers and the enlarged content of polymer amorphous phase in the composite scaffolds. Six-month biodegradation caused a reduction in surface potential (1.5-fold) and in a vertical piezoresponse (3.5-fold) of the Fe3O4-GO scaffold because of a decrease in the PHB β-phase content. In vitro assays in the absence of an MF showed a significantly more pronounced mesenchymal stem cell proliferation on composite magnetic scaffolds compared to the neat scaffold, whereas in an MF (68 mT, 0.67 Hz), cell proliferation was not statistically significantly different when all the studied scaffolds were compared. The PHB/Fe3O4-GO scaffold was implanted into femur bone defects in rats, resulting in successful bone repair after nonperiodic magnetic stimulation (200 mT, 0.04 Hz) owing to a synergetic influence of increased surface roughness, the presence of hydrophilic groups near the surface, and magnetoelectric and magnetomechanical effects of the material.
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Affiliation(s)
- Lada E Shlapakova
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Artyom S Pryadko
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Alexey Volkov
- P. Lumumba Peoples' Friendship University of Russia, 6 Miklukho-Maklaya Str., Moscow 117198, Russia
- Avtsyn Research Institute of Human Morphology at FSBSI Petrovsky National Research Centre of Surgery, 3 Tsyurupy Str., Moscow 117418, Russia
| | - Maria Kozadaeva
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Roman V Chernozem
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yulia R Mukhortova
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Dariana Chesnokova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Vsevolod A Zhuikov
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Angelina Zeltser
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Andrey A Dudun
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Tatiana Makhina
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Konstantin V Shaitan
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Konstantin Romanyuk
- Department of Physics & CICECO─Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Andrei L Kholkin
- Department of Physics & CICECO─Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal
| | - Anton P Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow 119234, Russia
| | - Maria A Surmeneva
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Roman A Surmenev
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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Giuliani C, De Stefano I, Mancuso M, Fiaschini N, Hein LA, Mirabile Gattia D, Scatena E, Zenobi E, Del Gaudio C, Galante F, Felici G, Rinaldi A. Advanced Electrospun Composites Based on Polycaprolactone Fibers Loaded with Micronized Tungsten Powders for Radiation Shielding. Polymers (Basel) 2024; 16:2590. [PMID: 39339053 PMCID: PMC11435529 DOI: 10.3390/polym16182590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/06/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
Exposure to high levels of radiation can cause acute, long-term health effects, such as acute radiation syndrome, cancer, and cardiovascular disease. This is an important occupational hazard in different fields, such as the aerospace and healthcare industry, as well as a crucial burden to overcome to boost space applications and exploration. Protective bulky equipment made of heavy metals is not suitable for many advanced purporses, such as mobile devices, wearable shields, and manned spacecrafts. In the latter case, the in-space manufacturing of protective shields is highly desirable and remains an unmet need. Composites made of polymers and high atomic number fillers are potential means for radiation protection due to their low weight, good flexibility, and good processability. In the present work, we developed electrospun composites based on polycaprolactone (polymer matrix) and tungsten powder for application as shielding materials. Electrospinning is a versatile technology that is easily scalable at an industrial level and allows obtaining very lightweight, flexible sheet materials for wearables. By controlling tungsten powder size, we engineered homogeneous, stable and processable suspensions to fabricate radiation composite shielding sheets. The shielding capability was assessed by an in vivo model on prototype composite sheets containing 80 w% of W filler in a polycaprolactone (PCL) fibrous matrix by means of irradiation tests (X-rays) on mice. The obtained results are promising; as expected, the shielding effectivity of the developed composite material increases with the thickness/number of stacked layers. It is worth noting that a thin barrier consisting of 24 layers of the innovative shielding material reduces the extent of apoptosis by 1.5 times compared to the non-shielded mice.
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Affiliation(s)
- Chiara Giuliani
- TERIN-DEC-ACEL Laboratory, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
| | - Ilaria De Stefano
- Division of Biotechnologies (SSPT-BIOTEC), ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
| | - Mariateresa Mancuso
- Division of Biotechnologies (SSPT-BIOTEC), ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
| | | | | | - Daniele Mirabile Gattia
- SSPT-TIMAF-MADD Laboratory, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
| | - Elisa Scatena
- E. Amaldi Foundation, Via del Politecnico snc, 00133 Rome, Italy
| | - Eleonora Zenobi
- E. Amaldi Foundation, Via del Politecnico snc, 00133 Rome, Italy
| | | | | | | | - Antonio Rinaldi
- TERIN-DEC-ACEL Laboratory, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Via Anguillarese 301, 00123 Rome, Italy
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Shlapakova LE, Botvin VV, Mukhortova YR, Zharkova II, Alipkina SI, Zeltzer A, Dudun AA, Makhina T, Bonartseva GA, Voinova VV, Wagner DV, Pariy I, Bonartsev AP, Surmenev RA, Surmeneva MA. Magnetoactive Composite Conduits Based on Poly(3-hydroxybutyrate) and Magnetite Nanoparticles for Repair of Peripheral Nerve Injury. ACS APPLIED BIO MATERIALS 2024; 7:1095-1114. [PMID: 38270084 DOI: 10.1021/acsabm.3c01032] [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] [Indexed: 01/26/2024]
Abstract
Peripheral nerve injury poses a threat to the mobility and sensitivity of a nerve, thereby leading to permanent function loss due to the low regenerative capacity of mature neurons. To date, the most widely clinically applied approach to bridging nerve injuries is autologous nerve grafting, which faces challenges such as donor site morbidity, donor shortages, and the necessity of a second surgery. An effective therapeutic strategy is urgently needed worldwide to overcome the current limitations. Herein, a magnetic nerve guidance conduit (NGC) based on biocompatible biodegradable poly(3-hydroxybutyrate) (PHB) and 8 wt % of magnetite nanoparticles modified by citric acid (Fe3O4-CA) was fabricated by electrospinning. The crystalline structure of NGCs was studied by X-ray diffraction, which indicated an enlarged β-phase of PHB in the composite conduit compared to a pure PHB conduit. Tensile tests revealed greater ductility of PHB/Fe3O4-CA: the composite conduit has Young's modulus of 221 ± 52 MPa and an elongation at break of 28.6 ± 2.9%, comparable to clinical materials. Saturation magnetization (σs) of Fe3O4-CA and PHB/Fe3O4-CA is 61.88 ± 0.29 and 7.44 ± 0.07 emu/g, respectively. The water contact angle of the PHB/Fe3O4-CA conduit is lower as compared to pure PHB, while surface free energy (σ) is significantly higher, which was attributed to higher surface roughness and an amorphous phase as well as possible PHB/Fe3O4-CA interface interactions. In vitro, the conduits supported the proliferation of rat mesenchymal stem cells (rMSCs) and SH-SY5Y cells in a low-frequency magnetic field (0.67 Hz, 68 mT). In vivo, the conduits were used to bridge damaged sciatic nerves in rats; pure PHB and composite PHB/Fe3O4-CA conduits did not cause acute inflammation and performed a barrier function, which promotes nerve regeneration. Thus, these conduits are promising as implants for the regeneration of peripheral nerves.
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Affiliation(s)
- Lada E Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Vladimir V Botvin
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yulia R Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Svetlana I Alipkina
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Angelina Zeltzer
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Andrey A Dudun
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Tatiana Makhina
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Dmitry V Wagner
- National Research Tomsk State University, Tomsk 634050, Russia
| | - Igor Pariy
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Anton P Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Roman A Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Maria A Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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Esposito FP, Vecchiato V, Buonocore C, Tedesco P, Noble B, Basnett P, de Pascale D. Enhanced production of biobased, biodegradable, Poly(3-hydroxybutyrate) using an unexplored marine bacterium Pseudohalocynthiibacter aestuariivivens, isolated from highly polluted coastal environment. BIORESOURCE TECHNOLOGY 2023; 368:128287. [PMID: 36368485 DOI: 10.1016/j.biortech.2022.128287] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
The production and disposal of plastics from limited fossil reserves, has prompted research for greener and sustainable alternatives. Polyhydroxyalkanoates (PHAs) are biocompatible, biodegradable, and thermoprocessable polyester produced by microbes. PHAs found several applications but their use is limited due to high production cost and low yields. Herein, for the first time, the isolation and characterization of Pseudohalocynthiibacter aestuariivivens P96, a marine bacterium able to produce surprising amount of PHAs is reported. In the best growth condition P96 was able to reach a maximum production of 4.73 g/L, corresponding to the 87 % of total cell dry-weight. Using scanning and transmission microscopy, lab-scale fermentation, spectroscopic techniques, and genome analysis, the production of thermoprocessable polymer Polyhydroxybutyrate P(3HB), a PHAs class, endowed with mechanical and thermal properties comparable to that of petroleum-based plastics was confirmed. This study represents a milestone toward the use of this unexplored marine bacterium for P(3HB) production.
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Affiliation(s)
- Fortunato Palma Esposito
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton 55, 80133 Naples, Italy
| | - Vittoria Vecchiato
- Sustainable Biotechnology Research Group, School of Life Sciences, University of Westminster, London W1W6UW, United Kingdom
| | - Carmine Buonocore
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton 55, 80133 Naples, Italy
| | - Pietro Tedesco
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton 55, 80133 Naples, Italy
| | - Brendon Noble
- Sustainable Biotechnology Research Group, School of Life Sciences, University of Westminster, London W1W6UW, United Kingdom
| | - Pooja Basnett
- Sustainable Biotechnology Research Group, School of Life Sciences, University of Westminster, London W1W6UW, United Kingdom
| | - Donatella de Pascale
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Acton 55, 80133 Naples, Italy.
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5
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Pryadko A, Mukhortova YR, Chernozem RV, Shlapakova LE, Wagner DV, Romanyuk K, Gerasimov EY, Kholkin A, Surmenev RA, Surmeneva MA. Comprehensive Study on the Reinforcement of Electrospun PHB Scaffolds with Composite Magnetic Fe 3O 4-rGO Fillers: Structure, Physico-Mechanical Properties, and Piezoelectric Response. ACS OMEGA 2022; 7:41392-41411. [PMID: 36406497 PMCID: PMC9670262 DOI: 10.1021/acsomega.2c05184] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
This is a comprehensive study on the reinforcement of electrospun poly(3-hydroxybutyrate) (PHB) scaffolds with a composite filler of magnetite-reduced graphene oxide (Fe3O4-rGO). The composite filler promoted the increase of average fiber diameters and decrease of the degree of crystallinity of hybrid scaffolds. The decrease in the fiber diameter enhanced the ductility and mechanical strength of scaffolds. The surface electric potential of PHB/Fe3O4-rGO composite scaffolds significantly increased with increasing fiber diameter owing to a greater number of polar functional groups. The changes in the microfiber diameter did not have any influence on effective piezoresponses of composite scaffolds. The Fe3O4-rGO filler imparted high saturation magnetization (6.67 ± 0.17 emu/g) to the scaffolds. Thus, magnetic PHB/Fe3O4-rGO composite scaffolds both preserve magnetic properties and provide a piezoresponse, whereas varying the fiber diameter offers control over ductility and surface electric potential.
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Affiliation(s)
- Artyom
S. Pryadko
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | - Yulia R. Mukhortova
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | - Roman V. Chernozem
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | - Lada E. Shlapakova
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | | | - Konstantin Romanyuk
- Department
of Physics & CICECO−Aveiro Institute of Materials, University of Aveiro, Aveiro3810-193, Portugal
- International
Research & Development Center of Piezo- and Magnetoelectric Materials,
Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | | | - Andrei Kholkin
- School
of Natural Sciences and Mathematics, Ural
Federal University, Ekaterinburg620000, Russia
- International
Research & Development Center of Piezo- and Magnetoelectric Materials,
Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | - Roman A. Surmenev
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
- International
Research & Development Center of Piezo- and Magnetoelectric Materials,
Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
| | - Maria A. Surmeneva
- Physical
Materials Science and Composite Materials Center, Research School
of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
- International
Research & Development Center of Piezo- and Magnetoelectric Materials,
Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk634050, Russia
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6
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Pryadko A AS, Mukhortova YR, Chernozem RV, Pariy I, Alipkina SI, Zharkova II, Dudun AA, Zhuikov VA, Moisenovich AM, Bonartseva GA, Voinova VV, Chesnokova DV, Ivanov AA, Travnikova DY, Shaitan KV, Bonartsev AP, Wagner DV, Shlapakova LE, Surmenev RA, Surmeneva MA. Electrospun Magnetic Composite Poly-3-hydroxybutyrate/Magnetite Scaffolds for Biomedical Applications: Composition, Structure, Magnetic Properties, and Biological Performance. ACS APPLIED BIO MATERIALS 2022; 5:3999-4019. [PMID: 35925883 DOI: 10.1021/acsabm.2c00496] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Magnetically responsive composite polymer scaffolds have good potential for a variety of biomedical applications. In this work, electrospun composite scaffolds made of polyhydroxybutyrate (PHB) and magnetite (Fe3O4) particles (MPs) were studied before and after degradation in either PBS or a lipase solution. MPs of different sizes with high saturation magnetization were synthesized by the coprecipitation method followed by coating with citric acid (CA). Nanosized MPs were prone to magnetite-maghemite phase transformation during scaffold fabrication, as revealed by Raman spectroscopy; however, for CA-functionalized nanoparticles, the main phase was found to be magnetite, with some traces of maghemite. Submicron MPs were resistant to the magnetite-maghemite phase transformation. MPs did not significantly affect the morphology and diameter of PHB fibers. The scaffolds containing CA-coated MPs lost 0.3 or 0.2% of mass in the lipase solution and PBS, respectively, whereas scaffolds doped with unmodified MPs showed no mass changes after 1 month of incubation in either medium. In all electrospun scaffolds, no alterations of the fiber morphology were observed. Possible mechanisms of the crystalline-lamellar-structure changes in hybrid PHB/Fe3O4 scaffolds during hydrolytic and enzymatic degradation are proposed. It was revealed that particle size and particle surface functionalization affect the mechanical properties of the hybrid scaffolds. The addition of unmodified MPs increased scaffolds' ultimate strength but reduced elongation at break after the biodegradation, whereas simultaneous increases in both parameters were observed for composite scaffolds doped with CA-coated MPs. The highest saturation magnetization─higher than that published in the literature─was registered for composite PHB scaffolds doped with submicron MPs. All PHB scaffolds proved to be biocompatible, and the ones doped with nanosized MPs yielded faster proliferation of rat mesenchymal stem cells. In addition, all electrospun scaffolds were able to support angiogenesis in vivo at 30 days after implantation in Wistar rats.
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Affiliation(s)
- Artyom S Pryadko A
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yulia R Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Roman V Chernozem
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Igor Pariy
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Svetlana I Alipkina
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Andrey A Dudun
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vsevolod A Zhuikov
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Anastasia M Moisenovich
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Dariana V Chesnokova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Alexey A Ivanov
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Daria Yu Travnikova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Konstantin V Shaitan
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Anton P Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Dmitry V Wagner
- National Research Tomsk State University, Tomsk 634050, Russia
| | - Lada E Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Roman A Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Maria A Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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7
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Pryadko AS, Botvin VV, Mukhortova YR, Pariy I, Wagner DV, Laktionov PP, Chernonosova VS, Chelobanov BP, Chernozem RV, Surmeneva MA, Kholkin AL, Surmenev RA. Core-Shell Magnetoactive PHB/Gelatin/Magnetite Composite Electrospun Scaffolds for Biomedical Applications. Polymers (Basel) 2022; 14:polym14030529. [PMID: 35160518 PMCID: PMC8839593 DOI: 10.3390/polym14030529] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 12/21/2022] Open
Abstract
Novel hybrid magnetoactive composite scaffolds based on poly(3-hydroxybutyrate) (PHB), gelatin, and magnetite (Fe3O4) were fabricated by electrospinning. The morphology, structure, phase composition, and magnetic properties of composite scaffolds were studied. Fabrication procedures of PHB/gelatin and PHB/gelatin/Fe3O4 scaffolds resulted in the formation of both core-shell and ribbon-shaped structure of the fibers. In case of hybrid PHB/gelatin/Fe3O4 scaffolds submicron-sized Fe3O4 particles were observed in the surface layers of the fibers. The X-ray photoelectron spectroscopy results allowed the presence of gelatin on the fiber surface (N/C ratio–0.11) to be revealed. Incubation of the composite scaffolds in saline for 3 h decreased the amount of gelatin on the surface by more than ~75%. The differential scanning calorimetry results obtained for pure PHB scaffolds revealed a characteristic melting peak at 177.5 °C. The presence of gelatin in PHB/gelatin and PHB/gelatin/Fe3O4 scaffolds resulted in the decrease in melting temperature to 168–169 °C in comparison with pure PHB scaffolds due to the core-shell structure of the fibers. Hybrid scaffolds also demonstrated a decrease in crystallinity from 52.3% (PHB) to 16.9% (PHB/gelatin) and 9.2% (PHB/gelatin/Fe3O4). All the prepared scaffolds were non-toxic and saturation magnetization of the composite scaffolds with magnetite was 3.27 ± 0.22 emu/g, which makes them prospective candidates for usage in biomedical applications.
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Affiliation(s)
- Artyom S. Pryadko
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
| | - Vladimir V. Botvin
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
| | - Yulia R. Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
| | - Igor Pariy
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
| | - Dmitriy V. Wagner
- Faculty of Radiophysics, National Research Tomsk State University, 634050 Tomsk, Russia;
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (P.P.L.); (V.S.C.); (B.P.C.)
| | - Vera S. Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (P.P.L.); (V.S.C.); (B.P.C.)
| | - Boris P. Chelobanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (P.P.L.); (V.S.C.); (B.P.C.)
- Laboratory of Molecular Medicine, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Roman V. Chernozem
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
| | - Maria A. Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
| | - Andrei L. Kholkin
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (A.L.K.); (R.A.S.)
| | - Roman A. Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (A.S.P.); (Y.R.M.); (I.P.); (R.V.C.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;
- Correspondence: (A.L.K.); (R.A.S.)
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8
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Olkhov AA, Mastalygina EE, Ovchinnikov VA, Monakhova TV, Vetcher AA, Iordanskii AL. Thermo-Oxidative Destruction and Biodegradation of Nanomaterials from Composites of Poly(3-hydroxybutyrate) and Chitosan. Polymers (Basel) 2021; 13:polym13203528. [PMID: 34685287 PMCID: PMC8541602 DOI: 10.3390/polym13203528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/28/2021] [Accepted: 10/07/2021] [Indexed: 12/24/2022] Open
Abstract
A complex of structure-sensitive methods of morphology analysis was applied to study film materials obtained from blends of poly(3-hydroxybutyrate) (PHB) and chitosan (CHT) by pouring from a solution, and nonwoven fibrous materials obtained by the method of electrospinning (ES). It was found that with the addition of CHT to PHB, a heterophase system with a nonequilibrium stressed structure at the interface was formed. This system, if undergone accelerated oxidation and hydrolysis, contributed to the intensification of the growth of microorganisms. On the other hand, the antimicrobial properties of CHT led to inhibition of the biodegradation process. Nonwoven nanofiber materials, since having a large specific surface area of contact with an aggressive agent, demonstrated an increased ability to be thermo-oxidative and for biological degradation in comparison with film materials.
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Affiliation(s)
- Anatoly A. Olkhov
- Scientific Laboratory “Advanced Composite Materials and Technologies”, Plekhanov Russian University of Economics, 36 Stremyanny Ln, 117997 Moscow, Russia; (A.A.O.); (E.E.M.); (V.A.O.)
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin St., 119991 Moscow, Russia;
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St. 4, 119334 Moscow, Russia;
| | - Elena E. Mastalygina
- Scientific Laboratory “Advanced Composite Materials and Technologies”, Plekhanov Russian University of Economics, 36 Stremyanny Ln, 117997 Moscow, Russia; (A.A.O.); (E.E.M.); (V.A.O.)
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin St., 119991 Moscow, Russia;
| | - Vasily A. Ovchinnikov
- Scientific Laboratory “Advanced Composite Materials and Technologies”, Plekhanov Russian University of Economics, 36 Stremyanny Ln, 117997 Moscow, Russia; (A.A.O.); (E.E.M.); (V.A.O.)
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St. 4, 119334 Moscow, Russia;
| | - Tatiana V. Monakhova
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin St., 119991 Moscow, Russia;
| | - Alexandre A. Vetcher
- Institute of Biochemical Technology and Nanotechnology (IBTN), Peoples’ Friendship University of Russia (RUDN), 6 Miklukho-Maklaya St., 117198 Moscow, Russia
- Complementary and Integrative Health Clinic of Dr. Shishonin, 5 Yasnogorskaya St., 117588 Moscow, Russia
- Correspondence:
| | - Alexey L. Iordanskii
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St. 4, 119334 Moscow, Russia;
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9
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Marcello E, Maqbool M, Nigmatullin R, Cresswell M, Jackson PR, Basnett P, Knowles JC, Boccaccini AR, Roy I. Antibacterial Composite Materials Based on the Combination of Polyhydroxyalkanoates With Selenium and Strontium Co-substituted Hydroxyapatite for Bone Regeneration. Front Bioeng Biotechnol 2021; 9:647007. [PMID: 33898403 PMCID: PMC8059794 DOI: 10.3389/fbioe.2021.647007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/04/2021] [Indexed: 11/25/2022] Open
Abstract
Due to the threat posed by the rapid growth in the resistance of microbial species to antibiotics, there is an urgent need to develop novel materials for biomedical applications capable of providing antibacterial properties without the use of such drugs. Bone healing represents one of the applications with the highest risk of postoperative infections, with potential serious complications in case of bacterial contaminations. Therefore, tissue engineering approaches aiming at the regeneration of bone tissue should be based on the use of materials possessing antibacterial properties alongside with biological and functional characteristics. In this study, we investigated the combination of polyhydroxyalkanoates (PHAs) with a novel antimicrobial hydroxyapatite (HA) containing selenium and strontium. Strontium was chosen for its well-known osteoinductive properties, while selenium is an emerging element investigated for its multi-functional activity as an antimicrobial and anticancer agent. Successful incorporation of such ions in the HA structure was obtained. Antibacterial activity against Staphylococcus aureus 6538P and Escherichia coli 8739 was confirmed for co-substituted HA in the powder form. Polymer-matrix composites based on two types of PHAs, P(3HB) and P(3HO-co-3HD-co-3HDD), were prepared by the incorporation of the developed antibacterial HA. An in-depth characterization of the composite materials was conducted to evaluate the effect of the filler on the physicochemical, thermal, and mechanical properties of the films. In vitro antibacterial testing showed that the composite samples induce a high reduction of the number of S. aureus 6538P and E. coli 8739 bacterial cells cultured on the surface of the materials. The films are also capable of releasing active ions which inhibited the growth of both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Elena Marcello
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Muhammad Maqbool
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
- Lucideon Ltd., Stoke-on-Trent, United Kingdom
- CAM Bioceramics B.V., Leiden, Netherlands
| | - Rinat Nigmatullin
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
- Bristol Composites Institute (ACCIS), University of Bristol, Bristol, United Kingdom
| | | | | | - Pooja Basnett
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Jonathan C. Knowles
- Division of Biomaterials and Tissue Engineering, Faculty of Medical Sciences, University College London Eastman Dental Institute, London, United Kingdom
- Department of Nanobiomedical Science and BK21 Plus NBM, Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea
- The Discoveries Centre for Regenerative and Precision Medicine, University College London, London, United Kingdom
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ipsita Roy
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
- Department of Materials Science and Engineering, Faculty of Engineering, The University of Sheffield, Sheffield, United Kingdom
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10
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Longo R, Gorrasi G, Guadagno L. Electromagnetically Stimuli-Responsive Nanoparticles-Based Systems for Biomedical Applications: Recent Advances and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:848. [PMID: 33810343 PMCID: PMC8065448 DOI: 10.3390/nano11040848] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 12/18/2022]
Abstract
Nanoparticles (NPs) in the biomedical field are known for many decades as carriers for drugs that are used to overcome biological barriers and reduce drug doses to be administrated. Some types of NPs can interact with external stimuli, such as electromagnetic radiations, promoting interesting effects (e.g., hyperthermia) or even modifying the interactions between electromagnetic field and the biological system (e.g., electroporation). For these reasons, at present these nanomaterial applications are intensively studied, especially for drugs that manifest relevant side effects, for which it is necessary to find alternatives in order to reduce the effective dose. In this review, the main electromagnetic-induced effects are deeply analyzed, with a particular focus on the activation of hyperthermia and electroporation phenomena, showing the enhanced biological performance resulting from an engineered/tailored design of the nanoparticle characteristics. Moreover, the possibility of integrating these nanofillers in polymeric matrices (e.g., electrospun membranes) is described and discussed in light of promising applications resulting from new transdermal drug delivery systems with controllable morphology and release kinetics controlled by a suitable stimulation of the interacting systems (nanofiller and interacting cells).
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Affiliation(s)
- Raffaele Longo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Salerno, Italy;
| | | | - Liberata Guadagno
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Salerno, Italy;
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11
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He CR, Lee MC, Kuo YY, Wu TM, Li SY. The influence of support structures on cell immobilization and acetone–butanol–ethanol (ABE) fermentation performance. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Zhijiang C, Qin Z, Xianyou S, Yuanpei L. Zein/Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) electrospun blend fiber scaffolds: Preparation, characterization and cytocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:797-806. [PMID: 27987775 DOI: 10.1016/j.msec.2016.10.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/23/2016] [Accepted: 10/24/2016] [Indexed: 12/11/2022]
Abstract
In the present work, a series of Zein/Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blend fiber scaffolds have been prepared by electrospinning method. The electrospun fibers showed a circular and uniform morphology with random distribution. The blend fiber scaffolds possessed well interconnected porous fibrous network structure with high porosity and large aspect surface areas. The FTIR and XPS spectra of Zein/P(3HB-co-4HB) blend fibers demonstrated the same characteristics to that of pure Zein and P(3HB-co-4HB) electrospun fibers. However, Zein might hinder the crystallization of P(3HB-co-4HB) owing to the formation of weak intermolecular interactions, which can affect the preferential orientation of P(3HB-co-4HB) molecules. Only one glass transition temperature (Tg) can be detected for electrospun Zein/P(3HB-co-4HB) blend fiber scaffolds implying the miscibility of Zein and P(3HB-co-4HB) in the blend fibers. The Zein/P(3HB-co-4HB) blend fiber scaffolds showed about 50% of improvement in tensile strength and 400% of increase in elongation at break by increasing P(3HB-co-4HB) content from 20% to 80%. The cytocompatibility of the Zein/P(3HB-co-4HB) blend fiber scaffolds was preliminarily evaluated by cell culture in vitro. The as-prepared electrospun Zein/P(3HB-co-4HB) blend fiber scaffolds with the characteristics of good biocompatibility, excellent pore characteristic as well as sufficient mechanical properties should be more promising for applications as tissue engineering scaffold.
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Affiliation(s)
- Cai Zhijiang
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; State Key Laboratory of Hollow Fiber Membrane Material and Processes, No 399 BingShuiXi Street, Tianjin 300387, XiQing District, China.
| | - Zhang Qin
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Song Xianyou
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Liu Yuanpei
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
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13
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Hsiao LJ, Lin JH, Sankatumvong P, Wu TM, Li SY. The Feasibility of Thermophilic Caldimonas manganoxidans as a Platform for Efficient PHB Production. Appl Biochem Biotechnol 2016; 180:852-871. [PMID: 27230570 DOI: 10.1007/s12010-016-2138-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 05/11/2016] [Indexed: 11/30/2022]
Abstract
Recently, poly(3-hydroxybutyrate) (PHB) has been found in a few thermophilic strains where several advantages can be gained from running fermentation at high temperatures. Caldimonas manganoxidans, a thermophilic gram-negative bacterium, was investigated for the feasibility as a PHB-producing strain. It is suggested that the best fermentation strategy for achieving the highest PHB concentration of 5.4 ± 1.1 g/L (from 20 g/L glucose) in 24 h is to use the fermentation conditions that are favored for the bacterial growth, yet temperature and pH should be chosen at conditions that are favored for the PHB content. Besides, the above fermentation conditions produce PHB that has a high molecular weight of 1274 kDa with a low polydispersity index (PDI) of 1.45, where the highest Mw of PHB of 1399 kDa (PDI of 1.32) is obtained in this study. To the best knowledge of authors, C. manganoxidans has the best PHB productivity among the thermophiles and is comparable to those common PHB-producing mesophiles.
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Affiliation(s)
- Li-Jung Hsiao
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ji-Hong Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Pantitra Sankatumvong
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzong-Ming Wu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Si-Yu Li
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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14
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Zhijiang C, Yi X, Haizheng Y, Jia J, Liu Y. Poly(hydroxybutyrate)/cellulose acetate blend nanofiber scaffolds: Preparation, characterization and cytocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:757-67. [DOI: 10.1016/j.msec.2015.09.048] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/11/2015] [Accepted: 09/10/2015] [Indexed: 10/23/2022]
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