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Khan MUA, Aslam MA, Abdullah MFB, Abdal-Hay A, Gao W, Xiao Y, Stojanović GM. Recent advances of bone tissue engineering: carbohydrate and ceramic materials, fundamental properties and advanced biofabrication strategies ‒ a comprehensive review. Biomed Mater 2024; 19:052005. [PMID: 39105493 DOI: 10.1088/1748-605x/ad6b8a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/05/2024] [Indexed: 08/07/2024]
Abstract
Bone is a dynamic tissue that can always regenerate itself through remodeling to maintain biofunctionality. This tissue performs several vital physiological functions. However, bone scaffolds are required for critical-size damages and fractures, and these can be addressed by bone tissue engineering. Bone tissue engineering (BTE) has the potential to develop scaffolds for repairing critical-size damaged bone. BTE is a multidisciplinary engineered scaffold with the desired properties for repairing damaged bone tissue. Herein, we have provided an overview of the common carbohydrate polymers, fundamental structural, physicochemical, and biological properties, and fabrication techniques for bone tissue engineering. We also discussed advanced biofabrication strategies and provided the limitations and prospects by highlighting significant issues in bone tissue engineering. There are several review articles available on bone tissue engineering. However, we have provided a state-of-the-art review article that discussed recent progress and trends within the last 3-5 years by emphasizing challenges and future perspectives.
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Affiliation(s)
- Muhammad Umar Aslam Khan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha 2713, Qatar
- Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Muhammad Azhar Aslam
- Department of Physics, University of Engineering and Technology, Lahore 39161, Pakistan
| | - Mohd Faizal Bin Abdullah
- Oral and Maxillofacial Surgery Unit, School of Dental Sciences Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kota Bharu, Kelantan 16150, Malaysia
- Oral and Maxillofacial Surgery Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kota Bharu, Kelantan 16150, Malaysia
| | - Abdalla Abdal-Hay
- Department of Engineering Materials and Mechanical Design, Faculty of Engineering, South Valley University, Qena 83523, Egypt
- School of Dentistry, University of Queensland, 288 Herston Road, Herston QLD 4006, Australia
| | - Wendong Gao
- School of Medicine and Dentistry , Griffith University, Gold Coast Campus, Brisbane, Queensland 4222, Australia
| | - Yin Xiao
- School of Medicine and Dentistry , Griffith University, Gold Coast Campus, Brisbane, Queensland 4222, Australia
| | - Goran M Stojanović
- Faculty of Technical Sciences, University of Novi Sad, T. D. Obradovica 6, 21000 Novi Sad, Serbia
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2
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Huang T, Zeng Y, Li C, Zhou Z, Xu J, Wang L, Yu DG, Wang K. Application and Development of Electrospun Nanofiber Scaffolds for Bone Tissue Engineering. ACS Biomater Sci Eng 2024; 10:4114-4144. [PMID: 38830819 DOI: 10.1021/acsbiomaterials.4c00028] [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: 06/05/2024]
Abstract
Nanofiber scaffolds have gained significant attention in the field of bone tissue engineering. Electrospinning, a straightforward and efficient technique for producing nanofibers, has been extensively researched. When used in bone tissue engineering scaffolds, electrospun nanofibers with suitable surface properties promote new bone tissue growth and enhance cell adhesion. Recent advancements in electrospinning technology have provided innovative approaches for scaffold fabrication in bone tissue engineering. This review comprehensively examines the utilization of electrospun nanofibers in bone tissue engineering scaffolds and evaluates the relevant literature. The review begins by presenting the fundamental principles and methodologies of electrospinning. It then discusses various materials used in the production of electrospun nanofiber scaffolds for bone tissue engineering, including natural and synthetic polymers, as well as certain inorganic materials. The challenges associated with these materials are also described. The review focuses on novel electrospinning techniques for scaffold construction in bone tissue engineering, such as multilayer nanofibers, multifluid electrospinning, and the integration of electrospinning with other methods. Recent advancements in electrospinning technology have enabled the fabrication of precisely aligned nanofiber scaffolds with nanoscale architectures. These innovative methods also facilitate the fabrication of biomimetic structures, wherein bioactive substances can be incorporated and released in a controlled manner for drug delivery purposes. Moreover, they address issues encountered with traditional electrospun nanofibers, such as mechanical characteristics and biocompatibility. Consequently, the development and implementation of novel electrospinning technologies have revolutionized scaffold fabrication for bone tissue engineering.
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Affiliation(s)
- Tianyue Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - YuE Zeng
- Department of Neurology, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chaofei Li
- Department of General Surgery, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhengqing Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Jie Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Lean Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Ke Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
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Das KP, Chauhan P, Staudinger U, Satapathy BK. Sustainable adsorbent frameworks based on bio-resourced materials and biodegradable polymers in selective phosphate removal for waste-water remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:31691-31730. [PMID: 38649601 DOI: 10.1007/s11356-024-33253-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024]
Abstract
Phosphorus to an optimum extent is an essential nutrient for all living organisms and its scarcity may cause food security, and environmental preservation issues vis-à-vis agroeconomic hurdles. Undesirably excess phosphorus intensifies the eutrophication problem in non-marine water bodies and disrupts the natural nutrient balance of the ecosystem. To overcome such dichotomy, biodegradable polymer-based adsorbents have emerged as a cost-effective and implementable approach in striking a "desired optimum-undesired excess" balance pertaining to phosphate in a sustainable manner. So far, the reports on adopting such adsorbent-approach for wastewater remediation remained largely scattered, unstructured, and poorly correlated. In this background, the contextual review comprehensively discusses the current state-of-the-art in utilizing biodegradable polymeric frameworks as an adsorbent system for phosphate removal and its efficient recovery from the aquatic ecosystem, while highlighting their characteristics-specific functional efficiency vis-à-vis easiness of synthetic and commercial viability. The overview further delves into the sources and environmental ramifications of excessive phosphorus in water bodies and associated mechanistic pathways of phosphorus removal via adsorption, precipitation, and membrane filtration enabled by biodegradable (natural and synthetic) polymeric substrates. Finally, functionality optimization, degradability tuning, and adsorption selectivity of biodegradable polymers are highlighted, while aiming to strike a balance in "removal-recovery-reuse" dynamics of phosphate. Thus, the current review not only paves the way for future exploration of biodegradable polymers in sustainable cost-effective adsorbents for phosphorus removal but also can serve as a guide for researchers dealing with this critical issue.
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Affiliation(s)
- Krishna Priyadarshini Das
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, 110016, India
| | - Pooja Chauhan
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, 110016, India
| | - Ulrike Staudinger
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069, Dresden, Germany
| | - Bhabani Kumar Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, 110016, India.
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Friggeri G, Moretti I, Amato F, Marrani AG, Sciandra F, Colombarolli SG, Vitali A, Viscuso S, Augello A, Cui L, Perini G, De Spirito M, Papi M, Palmieri V. Multifunctional scaffolds for biomedical applications: Crafting versatile solutions with polycaprolactone enriched by graphene oxide. APL Bioeng 2024; 8:016115. [PMID: 38435469 PMCID: PMC10908559 DOI: 10.1063/5.0184933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
The pressing need for multifunctional materials in medical settings encompasses a wide array of scenarios, necessitating specific tissue functionalities. A critical challenge is the occurrence of biofouling, particularly by contamination in surgical environments, a common cause of scaffolds impairment. Beyond the imperative to avoid infections, it is also essential to integrate scaffolds with living cells to allow for tissue regeneration, mediated by cell attachment. Here, we focus on the development of a versatile material for medical applications, driven by the diverse time-definite events after scaffold implantation. We investigate the potential of incorporating graphene oxide (GO) into polycaprolactone (PCL) and create a composite for 3D printing a scaffold with time-controlled antibacterial and anti-adhesive growth properties. Indeed, the as-produced PCL-GO scaffold displays a local hydrophobic effect, which is translated into a limitation of biological entities-attachment, including a diminished adhesion of bacteriophages and a reduction of E. coli and S. aureus adhesion of ∼81% and ∼69%, respectively. Moreover, the ability to 3D print PCL-GO scaffolds with different heights enables control over cell distribution and attachment, a feature that can be also exploited for cellular confinement, i.e., for microfluidics or wound healing applications. With time, the surface wettability increases, and the scaffold can be populated by cells. Finally, the presence of GO allows for the use of infrared light for the sterilization of scaffolds and the disruption of any bacteria cell that might adhere to the more hydrophilic surface. Overall, our results showcase the potential of PCL-GO as a versatile material for medical applications.
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Affiliation(s)
| | - I. Moretti
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy
| | - F. Amato
- Dipartimento di Chimica, Università di Roma “La Sapienza,” p.le A. Moro 5, I-00185 Roma, Italy
| | - A. G. Marrani
- Dipartimento di Chimica, Università di Roma “La Sapienza,” p.le A. Moro 5, I-00185 Roma, Italy
| | - F. Sciandra
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - S. G. Colombarolli
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - A. Vitali
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - S. Viscuso
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | | | - L. Cui
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy
| | | | - M. De Spirito
- Authors to whom correspondence should be addressed: and
| | - M. Papi
- Authors to whom correspondence should be addressed: and
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Sánchez-Cepeda A, Cedeño E, Marín E, Pazos MC, Ingrid SC, Muñoz EDJ, Vera-Graziano R. Evaluation of the dispersion properties of graphene oxide/cetyltrimethylammonium bromide for application in nanocomposite materials. RSC Adv 2024; 14:3267-3279. [PMID: 38249673 PMCID: PMC10798003 DOI: 10.1039/d3ra04689c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
The properties of thermal diffusivity and Z potential of the GONPs/CTAB nanofluid were studied as a function of GO concentration (in the range between 4 and 12% w/v), temperature (35 and 50 °C) and time (30 and 60 min) under ultrasound. In turn, the structural properties of GONPs/CTAB were measured by XRD, Raman, SEM and TEM. The GO previously modified with CTAB was used to obtain a PLA/GO nanocomposite. It was found that the behavior of thermal diffusivity provides information in situ on the dispersion properties of the nanofluid, finding values from 0.0013 to 0.0024 cm2 s-1. The hydrodynamic diameter of the GONP dispersions was also determined to range from 75.83 to 360.3 nm with an increase in Z potential from 17 to 30 mV. The most stable GONPs/CTAB dispersion conditions were 6% w/v GO, 50 °C and 30 min. Under these conditions, the GONPs/CTAB materials present an increase in the spacing between GO layers, associated with a greater multilayer stacking of the GO and CTAB layers. The Raman spectrum allowed us to demonstrate that the modification with CTAB did not affect the crystallinity of GO, which was verified by the intensity ratio of the D band and the G band (ID/IG) for the GO/CTAB samples, with the exception of the GO 6% sample, where an increase in the ID/IG ratio (0.9) was observed compared to GO (0.82), associated with greater intercalation of CTAB between the GO sheets. Finally, an SEM analysis of the PLA/GO nanocomposite was carried out and the homogeneous distribution of GO in PLA was demonstrated when it is used as a filler in proportions of 0.1%. This treatment, in turn, contributed to improving the mechanical flexural properties of the nanocomposite materials.
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Affiliation(s)
- Angela Sánchez-Cepeda
- Facultad de Ciencias Básicas, Escuela de Posgrados, Universidad Pedagógica y Tecnológica de Colombia UPTC Avda. Central del Norte, Vía Paipa 150001 Tunja Boyacá Colombia
| | - E Cedeño
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Av. Legaria # 694, Col. Irrigación, Del. Miguel Hidalgo 11500 Ciudad de México Mexico
| | - E Marín
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Av. Legaria # 694, Col. Irrigación, Del. Miguel Hidalgo 11500 Ciudad de México Mexico
| | - M Carolina Pazos
- Escuela de Ciencias Química, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia UPTC Avda. Central del Norte, Vía Paipa Tunja Boyacá Colombia
| | - Silva-Cote Ingrid
- Unidad de Terapia Celular, Instituto Distrital de Ciencia, Biotecnología e Innovación en salud. IDCBIS Cra 32 #12-81 0571 Bogotá Colombia
| | - Efrén de Jesús Muñoz
- Facultad de Ciencias Básicas, Escuela de Posgrados, Universidad Pedagógica y Tecnológica de Colombia UPTC Avda. Central del Norte, Vía Paipa 150001 Tunja Boyacá Colombia
| | - Ricardo Vera-Graziano
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México UNAM Avda Universidad, C.U., Coyoacán 04510 Ciudad de México Mexico
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Yuan X, Yang W, Fu Y, Tao Z, Xiao L, Zheng Q, Wu D, Zhang M, Li L, Lu Z, Wu Y, Gao J, Li Y. Four-Arm Polymer-Guided Formation of Curcumin-Loaded Flower-Like Porous Microspheres as Injectable Cell Carriers for Diabetic Wound Healing. Adv Healthc Mater 2023; 12:e2301486. [PMID: 37556132 DOI: 10.1002/adhm.202301486] [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: 05/09/2023] [Revised: 06/26/2023] [Indexed: 08/10/2023]
Abstract
Stem cell injection is an effective approach for treating diabetic wounds; however, shear stress during injections can negatively affect their stemness and cell growth. Cell-laden porous microspheres can provide shelter for bone mesenchymal stem cells (BMSC). Herein, curcumin-loaded flower-like porous microspheres (CFPM) are designed by combining phase inversion emulsification with thermally induced phase separation-guided four-arm poly (l-lactic acid) (B-PLLA). Notably, the CFPM shows a well-defined surface topography and inner structure, ensuring a high surface area to enable the incorporation and delivery of a large amount of -BMSC and curcumin. The BMSC-carrying CFPM (BMSC@CFPM) maintains the proliferation, retention, and stemness of -BMSCs, which, in combination with their sustainable curcumin release, facilitates the endogenous production of growth/proangiogenic factors and offers a local anti-inflammatory function. An in vivo bioluminescence assay demonstrates that BMSC@CFPM can significantly increase the retention and survival of BMSC in wound sites. Accordingly, BMSC@CFPM, with no significant systemic toxicity, could significantly accelerate diabetic wound healing by promoting angiogenesis, collagen reconstruction, and M2 macrophage polarization. RNA sequencing further unveils the mechanisms by which BMSC@CFPM promotes diabetic wound healing by increasing -growth factors and enhancing angiogenesis through the JAK/STAT pathway. Overall, BMSC@CFPM represents a potential therapeutic tool for diabetic wound healing.
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Affiliation(s)
- Xiaohuan Yuan
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
| | - Wei Yang
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
- The Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, P. R. China
| | - Yingying Fu
- The Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Ziwei Tao
- The Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Center of Biomedical Technology, Queensland University of Technology, Brisbane, 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, 4059, Australia
| | - Qinzhou Zheng
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
| | - Dan Wu
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
| | - Mengya Zhang
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, P. R. China
| | - Luxin Li
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
| | - Zhengmao Lu
- Department of General Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yan Wu
- College of Life Science, Mudanjiang Medical University, Mudanjiang, 157011, P. R. China
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, P. R. China
| | - Yulin Li
- The Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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Nifant'ev I, Tavtorkin A, Komarov P, Kretov E, Korchagina S, Chinova M, Gavrilov D, Ivchenko P. Dispersant and Protective Roles of Amphiphilic Poly(ethylene phosphate) Block Copolymers in Polyester/Bone Mineral Composites. Int J Mol Sci 2023; 24:11175. [PMID: 37446347 DOI: 10.3390/ijms241311175] [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: 06/15/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Composites of synthetic bone mineral substitutes (BMS) and biodegradable polyesters are of particular interest for bone surgery and orthopedics. Manufacturing of composite scaffolds commonly uses mixing of the BMS with polymer melts. Melt processing requires a high homogeneity of the mixing, and is complicated by BMS-promoted thermal degradation of polymers. In our work, poly(L-lactide) (PLLA) and poly(ε-caprolactone) (PCL) composites reinforced by commercial β-tricalcium phosphate (βTCP) or synthesized carbonated hydroxyapatite with hexagonal and plate-like crystallite shapes (hCAp and pCAp, respectively) were fabricated using injection molding. pCAp-based composites showed advanced mechanical and thermal characteristics, and the best set of mechanical characteristics was observed for the PLLA-based composite containing 25 wt% of pCAp. To achieve compatibility of polyesters and pCAp, reactive block copolymers of PLLA or PCL with poly(tert-butyl ethylene phosphate) (C1 and C2, respectively) were introduced to the composite. The formation of a polyester-b-poly(ethylene phosphoric acid) (PEPA) compatibilizer during composite preparation, followed by chemical binding of PEPA with pCAp, have been proved experimentally. The presence of 5 wt% of the compatibilizer provided deeper homogenization of the composite, resulting in a marked increase in strength and moduli as well as a more pronounced nucleation effect during isothermal crystallization. The use of C1 increased the thermal stability of the PLLA-based composite, containing 25 wt% of pCAp. In view of positive impacts of polyester-b-PEPA on composite homogeneity, mechanical characteristics, and thermal stability, polyester-b-PEPA will find application in the further development of composite materials for bone surgery and orthopedics.
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Affiliation(s)
- Ilya Nifant'ev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Alexander Tavtorkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Egor Kretov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Sofia Korchagina
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Maria Chinova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Dmitry Gavrilov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Pavel Ivchenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
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8
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Al-Qahtani SD, Al-Bonayan AM, Almotairy ARZ, Alqahtani AM, Saad FA, El-Metwaly NM. Green preparation of electrically conductive solution blow spun nanofibers from recycled polyethylene terephthalate via plasma-assisted oxidation-reduction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:62676-62688. [PMID: 36947383 DOI: 10.1007/s11356-023-26501-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/13/2023] [Indexed: 05/10/2023]
Abstract
Simple and green strategy was described for the development of multifunctional polyester nanofibers (PNFs). Solution blow spinning (SBS) technology was applied to in situ immobilize nanocomposites of polyaniline (PANi) and silver nanoparticles (AgNPs) into plasma-treated polyester nanoscaled fibers prepared. The polyester nanofibers were prepared from recycled polyethylene terephthalate waste, which was exposed plasma-curing and a REDOX reaction in the presence of AgNO3, aniline, and CH3COONH4. Plasma-catalyzed oxidative polymerization of aniline to polyaniline together with a reductive process of Ag+ to silver nanoparticles led to their enduring insoluble dispersion into the surface of polyester nanofibers. By taking the advantage of the PANi oxidation, AgNPs were precipitated from an aqueous medium of AgNPs. The morphological properties were investigated by various analytical techniques. The polyester fiber diameter was determined in the range of 450-650 nm. In addition, transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were utilized to examine AgNPs, demonstrating diameters of 4-20 nm. The plasma-uncured AgNPs/PANi immobilized nanofibrous film displayed weak absorption bands at 399 nm and 403 nm upon increasing the concentration of AgNPs. On the other hand, the plasma-cured AgNPs/PANi immobilized nanofibers displayed strong absorption bands at 526 nm and 568 nm upon increasing the concentration of AgNPs. The AgNP-induced antimicrobial performance and the PANi-induced electrically conductivity were explored. The prepared PNFs showed high UV protection.
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Affiliation(s)
- Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Ameena M Al-Bonayan
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Awatif R Z Almotairy
- Department of Chemistry, Faculty of Science, Taibah University, Yanbu, 30799, Saudi Arabia
| | - Alaa M Alqahtani
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Fawaz A Saad
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
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9
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Ou Z, Li X, You Y, Liu D, Wang J. Interpreting the Therapeutic Efficiency of Multifunctional Hybrid Nanostructure against Glioblastoma. ACS OMEGA 2023; 8:12259-12267. [PMID: 37033822 PMCID: PMC10077551 DOI: 10.1021/acsomega.2c08265] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
Glioblastoma is considered the most fatal malignant brain tumor that starts from the central nervous system (CNS), where the blood-brain barrier (BBB) remains the biggest challenge for active targeting of drugs in malignant brain tumor. Thereby, we have designed a paclitaxel PTX@ANG/FA-NPs hybrid novel nanodrug delivery system that can overcome the clinical BBB. The structural and morphological characterization of PTX@ANG/FA-NPs confirmed successful synthesis of nanomicelles with the size range of about 160 to 170 nm. The overall repressive effect of PTX@ANG/FA-NPs on human glioblastoma U251 cells was 1.2-times that of PTX alone. In vitro cellular uptake assay also demonstrated that the dual-targeted nanoparticles (NPs) were more easily taken up by glioblastoma U251 cells. Although the antiglioblastoma activity was confirmed by cell migration assay, apoptosis assay, and cellular uptake assay, the absorption was studied by in vivo fluorescence imaging and brain distribution. The synthesized PTX@ANG/FA-NPs probe significantly inhibited the migration of U251 within the cells and promoted the apoptosis process. Moreover, the RhB@ANG/FA-NPs and PTX@ANG/FA-NPs showed higher accumulating potential at sites of tumor BBB disruption. The novel nanodrug delivery system mediated enhanced distribution of drugs at the targeted site for therapeutics efficacies against glioblastomas across the BBB.
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Affiliation(s)
- Zemin Ou
- Institute
of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 10700, China
| | - Xinjian Li
- Institute
of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 10700, China
| | - Yun You
- Institute
of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 10700, China
| | - Dewen Liu
- Institute
of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 10700, China
| | - Jinyu Wang
- Institute
of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 10700, China
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10
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Fei F, Yao H, Wang Y, Wei J. Graphene Oxide/RhPTH(1-34)/Polylactide Composite Nanofibrous Scaffold for Bone Tissue Engineering. Int J Mol Sci 2023; 24:ijms24065799. [PMID: 36982876 PMCID: PMC10058038 DOI: 10.3390/ijms24065799] [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: 12/31/2022] [Revised: 02/26/2023] [Accepted: 03/07/2023] [Indexed: 03/30/2023] Open
Abstract
Polylactide (PLA) is one of the most promising polymers that has been widely used for the repair of damaged tissues due to its biocompatibility and biodegradability. PLA composites with multiple properties, such as mechanical properties and osteogenesis, have been widely investigated. Herein, PLA/graphene oxide (GO)/parathyroid hormone (rhPTH(1-34)) nanofiber membranes were prepared using a solution electrospinning method. The tensile strength of the PLA/GO/rhPTH(1-34) membranes was 2.64 MPa, nearly 110% higher than that of a pure PLA sample (1.26 MPa). The biocompatibility and osteogenic differentiation test demonstrated that the addition of GO did not markedly affect the biocompatibility of PLA, and the alkaline phosphatase activity of PLA/GO/rhPTH(1-34) membranes was about 2.3-times that of PLA. These results imply that the PLA/GO/rhPTH(1-34) composite membrane may be a candidate material for bone tissue engineering.
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Affiliation(s)
- Fan Fei
- School of Stomatology, Nanchang University, Nanchang 330006, China
- Jiangxi Province Key Laboratory of Oral Biomedicine, Nanchang 330006, China
| | - Haiyan Yao
- School of Stomatology, Nanchang University, Nanchang 330006, China
- Jiangxi Province Key Laboratory of Oral Biomedicine, Nanchang 330006, China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yujiang Wang
- School of Stomatology, Nanchang University, Nanchang 330006, China
- Jiangxi Province Key Laboratory of Oral Biomedicine, Nanchang 330006, China
- Jiangxi Province Clinical Research Center for Oral Disease, Nanchang 330006, China
| | - Junchao Wei
- School of Stomatology, Nanchang University, Nanchang 330006, China
- Jiangxi Province Key Laboratory of Oral Biomedicine, Nanchang 330006, China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
- Jiangxi Province Clinical Research Center for Oral Disease, Nanchang 330006, China
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11
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Ghosh S, Yadav A, Rani S, Takkar S, Kulshreshtha R, Nandan B, Srivastava RK. 3D Printed Hierarchical Porous Poly(ε-caprolactone) Scaffolds from Pickering High Internal Phase Emulsion Templating. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1927-1946. [PMID: 36701663 DOI: 10.1021/acs.langmuir.2c02936] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In the realm of biomaterials, particularly bone tissue engineering, there has been a great increase in interest in scaffolds with hierarchical porosity and customizable multifunctionality. Recently, the three-dimensional (3D) printing of biopolymer-based inks (solutions or emulsions) has gained high popularity for fabricating tissue engineering scaffolds, which optimally satisfies the desired properties and performances. Herein, therefore, we explore the fabrication of 3D printed hierarchical porous scaffolds of poly(ε-caprolactone) (PCL) using the water-in-oil (w/o) Pickering PCL high internal phase emulsions (HIPEs) as the ink in 3D printer. The Pickering PCL HIPEs stabilized using hydrophobically modified nanoclay comprised of aqueous poly(vinyl alcohol) (PVA) as the dispersed phase. Rheological measurements suggested the shear thinning behavior of Pickering HIPEs having a dispersed droplet diameter of 3-25 μm. The pore morphology resembling the natural extracellular matrix and the mechanical properties of scaffolds were customized by tuning the emulsion composition and 3D printing parameters. In vitro biomineralization and drug release studies proved the scaffolds' potential in developing the apatite-rich bioactive interphase and controlled drug delivery, respectively. During in vitro osteoblast (MG63) growth experiments for up to 7 days, good adhesion and proliferation on PCL scaffolds confirmed their cytocompatibility, assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) analysis. This study suggests that the assembly of HIPE templates and 3D printing is a promising approach to creating hierarchical porous scaffolds potentially suitable for bone tissue engineering and can be stretched to other biopolymers as well.
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Affiliation(s)
- Sagnik Ghosh
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Anilkumar Yadav
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Sweety Rani
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Sonam Takkar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Ritu Kulshreshtha
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Bhanu Nandan
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Rajiv K Srivastava
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
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12
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Poly (Ether-Ether-Ketone) for Biomedical Applications: From Enhancing Bioactivity to Reinforced-Bioactive Composites-An Overview. Polymers (Basel) 2023; 15:polym15020373. [PMID: 36679253 PMCID: PMC9861117 DOI: 10.3390/polym15020373] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/21/2022] [Accepted: 12/24/2022] [Indexed: 01/13/2023] Open
Abstract
The global orthopedic market is forecasted to reach US$79.5 billion by the end of this decade. Factors driving the increase in this market are population aging, sports injury, road traffic accidents, and overweight, which justify a growing demand for orthopedic implants. Therefore, it is of utmost importance to develop bone implants with superior mechanical and biological properties to face the demand and improve patients' quality of life. Today, metallic implants still hold a dominant position in the global orthopedic implant market, mainly due to their superior mechanical resistance. However, their performance might be jeopardized due to the possible release of metallic debris, leading to cytotoxic effects and inflammatory responses in the body. Poly (ether-ether-ketone) (PEEK) is a biocompatible, high-performance polymer and one of the most prominent candidates to be used in manufacturing bone implants due to its similarity to the mechanical properties of bone. Unfortunately, the bioinert nature of PEEK culminates in its diminished osseointegration. Notwithstanding, PEEK's bioactivity can be improved through surface modification techniques and by the development of bioactive composites. This paper overviews the advantages of using PEEK for manufacturing implants and addresses the most common strategies to improve the bioactivity of PEEK in order to promote enhanced biomechanical performance.
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13
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Naguib HM. Recycled polyester filled with eggshells waste-based nano CaCO 3: thermo-mechanical and flame-retardant features. NEW J CHEM 2023. [DOI: 10.1039/d3nj00538k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Improved environmental-friendly fire-retardant nanocomposite.
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Affiliation(s)
- Hamdy M. Naguib
- Department of Petroleum Applications, Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, Egypt
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, China
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14
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Bellier N, Baipaywad P, Ryu N, Lee JY, Park H. Recent biomedical advancements in graphene oxide- and reduced graphene oxide-based nanocomposite nanocarriers. Biomater Res 2022; 26:65. [DOI: 10.1186/s40824-022-00313-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/30/2022] [Indexed: 11/28/2022] Open
Abstract
AbstractRecently, nanocarriers, including micelles, polymers, carbon-based materials, liposomes, and other substances, have been developed for efficient delivery of drugs, nucleotides, and biomolecules. This review focuses on graphene oxide (GO) and reduced graphene oxide (rGO) as active components in nanocarriers, because their chemical structures and easy functionalization can be valuable assets for in vitro and in vivo delivery. Herein, we describe the preparation, structure, and functionalization of GO and rGO. Additionally, their important properties to function as nanocarriers are presented, including their molecular interactions with various compounds, near-infrared light adsorption, and biocompatibility. Subsequently, their mechanisms and the most appealing examples of their delivery applications are summarized. Overall, GO- and rGO-based nanocomposites show great promise as multipurpose nanocarriers owing to their various potential applications in drug and gene delivery, phototherapy, bioimaging, biosensing, tissue engineering, and as antibacterial agents.
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15
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Chen M, Tan H, Xu W, Wang Z, Zhang J, Li S, Zhou T, Li J, Niu X. A Self-Healing, Magnetic and Injectable Biopolymer Hydrogel Generated by Dual Cross-Linking for Drug Delivery and Bone Repair. Acta Biomater 2022; 153:159-177. [PMID: 36152907 DOI: 10.1016/j.actbio.2022.09.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 11/19/2022]
Abstract
Injectable hydrogels based on various functional biocompatible materials have made rapid progress in the field of bone repair. In this study, a self-healing and injectable polysaccharide-based hydrogel was prepared for bone tissue engineering. The hydrogel was made of carboxymethyl chitosan (CMCS) and calcium pre-cross-linked oxidized gellan gum (OGG) cross-linked by the Schiff-base reaction. Meanwhile, magnetic hydroxyapatite/gelatin microspheres (MHGMs) were prepared by the emulsion cross-linking method. The antibacterial drugs, tetracycline hydrochloride (TH) and silver sulfadiazine (AgSD), were embedded into the MHGMs. To improve the mechanical and biological properties of the hydrogels, composite hydrogels were prepared by compounding hydroxyapatite (HAp) and drug-embedded MHGMs. The physical, chemical, mechanical and rheological properties of the composite hydrogels were characterized, as well as in vitro antibacterial tests and biocompatibility assays, respectively. Our results showed that the composite hydrogel with 6% (w/v) HAp and 10 mg/mL MHGMs exhibited good magnetic responsiveness, self-healing and injectability. Compared with the pure hydrogel, the composite hydrogel showed a 38.8% reduction in gelation time (196 to 120 s), a 65.6% decrease in swelling rate (39.4 to 13.6), a 51.9% increase in mass residual after degradation (79.5 to 120.8%), and a 143.7% increase in maximum compressive stress (53.6 to 130.6 KPa). In addition, this composite hydrogel showed good drug retardation properties and antibacterial effects against both S. aureus and E. coli. CCK-8 assay showed that composite hydrogel maintained high cell viability (> 87%) and rapid cell proliferation after 3 days, indicating that this smart hydrogel is expected to be an alternative scaffold for drug delivery and bone regeneration. STATEMENT OF SIGNIFICANCE: Biopolymer hydrogels have been considered as the promising materials for the treatment of tissue engineering and drug delivery. Injectable hydrogels with and self-healing properties and responsiveness to external stimuli have been extensively investigated as cell scaffolds and bone defects, due to their diversity and prolonged lifetime. Magnetism has also been involved in biomedical applications and played significant roles in targeted drug delivery and anti-cancer therapy. We speculate that development of dual cross-linked hydrogels basing biopolymers with multi-functionalities, such as injectable, self-healing, magnetic and anti-bacterial properties, would greatly broaden the application for bone tissue regeneration and drug delivery.
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Affiliation(s)
- Mengying Chen
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Huaping Tan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China.
| | - Weijie Xu
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Zijia Wang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Jinglei Zhang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Shengke Li
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Tianle Zhou
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Jianliang Li
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 409 Room, 338 Building, 200 Xiao Ling Wei Street, Nanjing 210094, China
| | - Xiaohong Niu
- Department of Luoli, Nanjing Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing 210014, China
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16
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Tigmeanu CV, Ardelean LC, Rusu LC, Negrutiu ML. Additive Manufactured Polymers in Dentistry, Current State-of-the-Art and Future Perspectives-A Review. Polymers (Basel) 2022; 14:polym14173658. [PMID: 36080732 PMCID: PMC9460687 DOI: 10.3390/polym14173658] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/21/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
3D-printing application in dentistry not only enables the manufacture of patient-specific devices and tissue constructs, but also allows mass customization, as well as digital workflow, with predictable lower cost and rapid turnaround times. 4D printing also shows a good impact in dentistry, as it can produce dynamic and adaptable materials, which have proven effective in the oral environment, under its continuously changing thermal and humidity conditions. It is expected to further boost the research into producing a whole tooth, capable to harmoniously integrate with the surrounding periodontium, which represents the ultimate goal of tissue engineering in dentistry. Because of their high versatility associated with the wide variety of available materials, additive manufacturing in dentistry predominantly targets the production of polymeric constructs. The aim of this narrative review is to catch a glimpse of the current state-of-the-art of additive manufacturing in dentistry, and the future perspectives of this modern technology, focusing on the specific polymeric materials.
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Affiliation(s)
- Codruta Victoria Tigmeanu
- Department of Technology of Materials and Devices in Dental Medicine, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
- Correspondence:
| | - Laura-Cristina Rusu
- Department of Oral Pathology, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Meda-Lavinia Negrutiu
- Department of Prostheses Technology and Dental Materials, Faculty of Dental Medicine, Research Center in Dental Medicine Using Conventional and Alternative Technologies, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
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17
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Al-Balakocy NG, Abdelrahman MS, Ahmed H, Badawy AA, Ghanem AF, Wassel AR, Wen Z, Khattab TA. Photoluminescent and photochromic smart window from recycled polyester reinforced with cellulose nanocrystals. LUMINESCENCE 2022; 37:1575-1584. [PMID: 35830768 DOI: 10.1002/bio.4333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/10/2022] [Accepted: 07/11/2022] [Indexed: 11/07/2022]
Abstract
Smart windows with long-persistent phosphorescence, UV protection, high transparency, and high rigidity were developed by easily immobilizing varying ratios of lanthanide-activated aluminate phosphor nanoscale particles within a composite of recycled polyester/cellulose nanocrystals (RPET/CNC). Cellulose nanocrystals were prepared from rice straw waste. Cellulose nanocrystals were used at low concentration as both crosslinker and drier to improve both transparency and hardness. The phosphor nanoscale particles must be distributed into the recycled polyester/cellulose nanocrystals composite bulk without agglomeration in order to produce transparent RPET/CNC substrates. Photoluminescence characteristics were also studied by using spectroscopic profiles of excitation/emission and decay/lifetime. The hardness efficiency was also examined. This transparent recycled polyester waste/cellulose nanocrystals nanocomposite smart window has been shown to change color under UV light to strong green and to greenish-yellow when it is dark, as proved by CIE Lab color parameters. It was found that the afterglow RPET/CNC smart window had phosphorescence intensities of 428, 493 and 523 nm upon excitation at 368 nm. There were evidences of improved UV shielding, photostability, and hydrophobic activity. In the presence of low phosphor ratio, the luminescent RPET/CNC substrates showed quick and reversible fluorescent photochromic activity when exposed to UV radiation.
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Affiliation(s)
- Naser G Al-Balakocy
- Protenic and Manmade Fibers Department, National Research Centre, Cairo, Egypt
| | - Meram S Abdelrahman
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, Egypt
| | - Hend Ahmed
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, Egypt
| | - Abdelrahman A Badawy
- Physical Chemistry Department, Institute of Advanced Material Technology and Mineral Resources Research, National Research Centre, Cairo, Egypt
| | - Ahmed F Ghanem
- Packaging Materials Department, Chemical Industries Research Institute, National Research Centre, Cairo, Egypt
| | - Ahmed R Wassel
- Electron Microscope and Thin Film Department, Physics Research Division National Research Centre, Giza, Egypt
| | - Zhen Wen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, China
| | - Tawfik A Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, Egypt
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18
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PLLA/Graphene Nanocomposites Membranes with Improved Biocompatibility and Mechanical Properties. COATINGS 2022. [DOI: 10.3390/coatings12060718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, nanocomposite membranes based on graphene and polylactide were evaluated for mechanical properties and biocompatibility. Single-layer graphene (SLG), graphene nanosheets (GNS), and poly L-lactic acid (PLLA) were prepared through layer-by-layer deposition and homogeneous mixing. The results revealed that PLLA/SLG nanocomposites and PLLA/GNS nanocomposites could show enhanced mechanical properties and biocompatibility. The addition of a tiny amount of SLG significantly improved Young’s modulus and tensile strength of the PLLA matrix by 15.9% and 32.8% respectively, while the addition of the same mass ratio of GNS boosted the elongation at break of the PLLA matrix by 79.7%. These results were ascribed to the crystallinity and interfacial interaction differences resulting from graphene incorporation. Also, improved biocompatibility was observed with graphene incorporation. Such nanocomposites membranes showed a lot of potential as environment-friendly and biomedical materials.
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19
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Grivet-Brancot A, Boffito M, Ciardelli G. Use of Polyesters in Fused Deposition Modeling for Biomedical Applications. Macromol Biosci 2022; 22:e2200039. [PMID: 35488769 DOI: 10.1002/mabi.202200039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/11/2022] [Indexed: 11/09/2022]
Abstract
In recent years, 3D printing techniques experienced a growing interest in several sectors, including the biomedical one. Their main advantage resides in the possibility to obtain complex and personalized structures in a cost-effective way impossible to achieve with traditional production methods. This is especially true for Fused Deposition Modeling (FDM), one of the most diffused 3D printing methods. The easy customization of the final products' geometry, composition and physico-chemical properties is particularly interesting for the increasingly personalized approach adopted in modern medicine. Thermoplastic polymers are the preferred choice for FDM applications, and a wide selection of biocompatible and biodegradable materials is available to this aim. Moreover, these polymers can also be easily modified before and after printing to better suit the body environment and the mechanical properties of biological tissues. This review focuses on the use of thermoplastic aliphatic polyesters for FDM applications in the biomedical field. In detail, the use of poly(ε-caprolactone), poly(lactic acid), poly(lactic-co-glycolic acid), poly(hydroxyalkanoate)s, thermo-plastic poly(ester urethane)s and their blends has been thoroughly surveyed, with particular attention to their main features, applicability and workability. The state-of-the-art is presented and current challenges in integrating the additive manufacturing technology in the medical practice are discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Arianna Grivet-Brancot
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, 10129, Italy.,Department of Surgical Sciences, Università di Torino, Corso Dogliotti 14, Torino, 10126, Italy
| | - Monica Boffito
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, 10129, Italy
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, 10129, Italy
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20
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Darie-Niță RN, Râpă M, Frąckowiak S. Special Features of Polyester-Based Materials for Medical Applications. Polymers (Basel) 2022; 14:951. [PMID: 35267774 PMCID: PMC8912343 DOI: 10.3390/polym14050951] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
This article presents current possibilities of using polyester-based materials in hard and soft tissue engineering, wound dressings, surgical implants, vascular reconstructive surgery, ophthalmology, and other medical applications. The review summarizes the recent literature on the key features of processing methods and potential suitable combinations of polyester-based materials with improved physicochemical and biological properties that meet the specific requirements for selected medical fields. The polyester materials used in multiresistant infection prevention, including during the COVID-19 pandemic, as well as aspects covering environmental concerns, current risks and limitations, and potential future directions are also addressed. Depending on the different features of polyester types, as well as their specific medical applications, it can be generally estimated that 25-50% polyesters are used in the medical field, while an increase of at least 20% has been achieved since the COVID-19 pandemic started. The remaining percentage is provided by other types of natural or synthetic polymers; i.e., 25% polyolefins in personal protection equipment (PPE).
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Affiliation(s)
- Raluca Nicoleta Darie-Niță
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Maria Râpă
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Stanisław Frąckowiak
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland;
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21
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Pan X, Cheng D, Ruan C, Hong Y, Lin C. Development of Graphene-Based Materials in Bone Tissue Engineaering. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100107. [PMID: 35140982 PMCID: PMC8812920 DOI: 10.1002/gch2.202100107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/31/2021] [Indexed: 06/14/2023]
Abstract
Bone regeneration-related graphene-based materials (bGBMs) are increasingly attracting attention in tissue engineering due to their special physical and chemical properties. The purpose of this review is to quantitatively analyze mass academic literature in the field of bGBMs through scientometrics software CiteSpace, to demonstrate the rules and trends of bGBMs, thus to analyze and summarize the mechanisms behind the rules, and to provide clues for future research. First, the research status, hotspots, and frontiers of bGBMs are analyzed in an intuitively and vividly visualized way. Next, the extracted important subjects such as fabrication techniques, cytotoxicity, biodegradability, and osteoinductivity of bGBMs are presented, and the different mechanisms, in turn, are also discussed. Finally, photothermal therapy, which is considered an emerging area of application of bGBMs, is also presented. Based on this approach, this work finds that different studies report differing opinions on the biological properties of bGBMS due to the lack of consistency of GBMs preparation. Therefore, it is necessary to establish more standards in fabrication, characterization, and testing for bGBMs to further promote scientific progress and clinical translation.
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Affiliation(s)
- Xiaoling Pan
- College of StomatologyXinjiang Medical UniversityUrumqiXinjiang830011P. R. China
- Department of Oral Maxillofacial SurgeryShenzhen HospitalSouthern Medical UniversityShenzhen518000P. R. China
| | - Delin Cheng
- Research Center for Human Tissue and Organs DegenerationInstitute of Biomedicine and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
| | - Changshun Ruan
- Research Center for Human Tissue and Organs DegenerationInstitute of Biomedicine and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
| | - Yonglong Hong
- Department of Oral Maxillofacial SurgeryShenzhen HospitalSouthern Medical UniversityShenzhen518000P. R. China
| | - Cheng Lin
- Department of Oral Maxillofacial SurgeryShenzhen HospitalSouthern Medical UniversityShenzhen518000P. R. China
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El-Newehy M, El-Hamshary H, Meera Moydeen A, Tawfeek AM. Immobilization of lanthanide doped aluminate phosphor onto recycled polyester toward the development of long-persistent photoluminescence smart window. LUMINESCENCE 2022; 37:610-621. [PMID: 35092144 DOI: 10.1002/bio.4201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 11/09/2022]
Abstract
Smart window can be defined as switchable material whose light transmission is altered upon exposure to light, voltage, or heat. However, smart windows usually produced from expensive and breakable glass materials. Herein, transparent smart window with long-persistent phosphorescence, high optical transmittance, ultraviolet protection, rigid, high photostability and durability, and superhydrophobicity was developed from recycled polyester (PET). Recycled polyester waste (RBW) was simply immobilized with different ratios of lanthanide-doped aluminate nanoparticles (LdAN) to provide a long-persistent phosphorescent polyester smart window (LdAN@PET) with an ability to persist emitting light for extended time periods. The solid-state high temperature technique was used to prepare LdA micro-scale powder. Then, the top-down technique was applied to afford the corresponding LdA nanoparticles. Recycled shredded recycled polyester bottles were charged into a hot bath to provide a clear plastic shred bulk, which was then well-mixed with LdAN and drop-casted to provide long-persistent luminescent smart window. In order to improve the phosphor dispersion in the PET bulk, LdAN was synthesized in the nanoparticle form which was characterized utilizing transmission electron microscope (TEM). For better preparation of translucent smart window of long-persistent phosphorescent polyester, LdAN must be homogeneously dispersed in the PET matrix without agglomeration. The morphology and chemical composition were studied by infrared spectra (FT-IR), X-ray fluorescent (XRF) analysis, scanning electron microscopy (SEM), and energy-dispersion X-ray analyzer (EDS). In addition, spectral profiles of excitation and emission, and decay and lifetime were used to better understand the photoluminescence properties. The hardness properties were also investigated. The developed phosphorescent transparent polyester smart window demonstrated a color switch to intense green underneath UV irradiation and greenish-yellow under darkness as verified by CIE Lab color parameters. The afterglow polyester smart window showed an absorption wavelength at 365 nm and two phosphorescence intensities at 442 and 512 nm. An enhanced UV protection, photostability and hydrophobic activity were detected. The luminescent polyester substrates with lower LdAN ratios demonstrated rapid and reversible fluorescent photochromic activity beneath the UV light. The luminescent polyester substrates with higher LdAN contents displayed long-persistent phosphorescence afterglow. The current strategy can be simply applied for the production of smart windows, low thickness anticounterfeiting films and warning signs.
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Affiliation(s)
- Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Hany El-Hamshary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - A Meera Moydeen
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed M Tawfeek
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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Duan S, Yang X, Yang Z, Liu Y, Shi Q, Yang Z, Wu H, Han Y, Wang Y, Shen H, Huang Z, Dong XH, Zhang Z. A Versatile Synthetic Platform for Discrete Oligo- and Polyesters Based on Optimized Protective Groups Via Iterative Exponential Growth. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Suhua Duan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Xiaojie Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Ze Yang
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, 510640 Guangzhou, China
| | - Yuxin Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Qiunan Shi
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Zhilin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Haibing Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Yue Han
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Yongquan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Hang Shen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Zhihao Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Xue-Hui Dong
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, 510640 Guangzhou, China
| | - Zhengbiao Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, 215123 Suzhou, China
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24
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Arabiyat AS, Pfau MR, Grunlan MA, Hahn MS. Intrinsic osteoinductivity of PCL-DA/PLLA semi-IPN shape memory polymer scaffolds. J Biomed Mater Res A 2021; 109:2334-2345. [PMID: 33988292 PMCID: PMC8736335 DOI: 10.1002/jbm.a.37216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/22/2021] [Accepted: 05/01/2021] [Indexed: 02/06/2023]
Abstract
Engineering osteoinductive, self-fitting scaffolds offers a potential treatment modality to repair irregularly shaped craniomaxillofacial bone defects. Recently, we innovated on osteoinductive poly(ε-caprolactone)-diacrylate (PCL-DA) shape memory polymers (SMPs) to incorporate poly-L-lactic acid (PLLA) into the PCL-DA network, forming a semi-interpenetrating network (semi-IPN). Scaffolds formed from these PCL-DA/PLLA semi-IPNs display stiffnesses within the range of trabecular bone and accelerated degradation relative to scaffolds formed from slowly degrading PCL-DA SMPs. Herein, we demonstrate for the first time that PCL-DA/PLLA semi-IPN SMP scaffolds show increased intrinsic osteoinductivity relative to PCL-DA. We also confirm that application of a bioinspired polydopamine (PD) coating further improves the osteoinductive capacity of these PCL-DA/PLLA semi-IPN SMPs. In the absence of osteogenic supplements, protein level assessment of human mesenchymal stem cells (h-MSCs) cultured in PCL-DA/PLLA scaffolds revealed an increase in expression of osteogenic markers osterix, bone morphogenetic protein-4 (BMP-4), and collagen 1 alpha 1 (COL1A1), relative to PCL-DA scaffolds and osteogenic medium controls. Likewise, the expression of runt-related transcription factor 2 (RUNX2) and BMP-4 was elevated in the presence of PD-coating. In contrast, the chondrogenic and adipogenic responses associated with the scaffolds matched or were reduced relative to osteogenic medium controls, indicating that the scaffolds display intrinsic osteoinductivity.
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Affiliation(s)
- Ahmad S. Arabiyat
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute (RPI), Troy, New York
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), Troy, New York
| | - Michaela R. Pfau
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
| | - Melissa A. Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas
- Department of Chemistry, Texas A&M University, College Station, Texas
| | - Mariah S. Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute (RPI), Troy, New York
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), Troy, New York
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Abdelghafour MM, Orbán Á, Deák Á, Lamch Ł, Frank É, Nagy R, Ádám A, Sipos P, Farkas E, Bari F, Janovák L. The Effect of Molecular Weight on the Solubility Properties of Biocompatible Poly(ethylene succinate) Polyester. Polymers (Basel) 2021; 13:2725. [PMID: 34451264 PMCID: PMC8398594 DOI: 10.3390/polym13162725] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 01/08/2023] Open
Abstract
Poly(ethylene succinate) (PES) is one of the most promising biodegradable and biocompatible polyesters and is widely used in different biomedical applications. However, little information is available on its solubility and precipitation properties, despite that these solution behavior properties affect its applicability. In order to systematically study these effects, biodegradable and biocompatible poly(ethylene succinate) (PES) was synthesized using ethylene glycol and succinic acid monomers with an equimolar ratio. Despite the optimized reaction temperature (T = 185 °C) of the direct condensation polymerization, relatively low molecular mass values were achieved without using a catalyst, and the Mn was adjustable with the reaction time (40-100 min) in the range of ~850 and ~1300 Da. The obtained crude products were purified by precipitation from THF ("good" solvent) with excess of methanol ("bad" solvent). The solvents for PES oligomers purification were chosen according to the calculated values of solubility parameters by different approaches (Fedors, Hoy and Hoftyzer-van Krevelen). The theta-solvent composition of the PES solution was 0.3 v/v% water and 0.7 v/v% DMSO in this binary mixture. These measurements were also allowed to determine important parameters such as the coefficients A (=0.67) and B (=3.69 × 104) from the Schulz equation, or the Kη (=8.22 × 10-2) and α (=0.52) constants from the Kuhn-Mark-Houwink equation. Hopefully, the prepared PES with different molecular weights is a promising candidate for biomedical applications and the reported data and constants are useful for other researchers who work with this promising polyester.
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Affiliation(s)
- Mohamed M. Abdelghafour
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary; (M.M.A.); (Á.O.); (Á.D.)
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ágoston Orbán
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary; (M.M.A.); (Á.O.); (Á.D.)
| | - Ágota Deák
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary; (M.M.A.); (Á.O.); (Á.D.)
| | - Łukasz Lamch
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Éva Frank
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary;
| | - Roland Nagy
- Department of MOL Department of Hydrocarbon and Coal Processing, Faculty of Engineering, University of Pannonia, Egyetem Str. 10, H-8200 Veszprém, Hungary;
| | - Adél Ádám
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary; (A.Á.); (P.S.)
| | - Pál Sipos
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary; (A.Á.); (P.S.)
| | - Eszter Farkas
- HCEMM-USZ Cerebral Blood Flow and Metabolism Research Group, University of Szeged, Dugonics Square 13, H-6720 Szeged, Hungary;
- Department of Cell Biology and Molecular Medicine, Faculty of Science and Informatics & Faculty of Medicine, University of Szeged, Somogyi Str. 4, H-6720 Szeged, Hungary
- Department of Medical Physics and Informatics, Faculty of Medicine & Faculty of Science and Informatics, University of Szeged, Korányi Fasor 9, H-6720 Szeged, Hungary;
| | - Ferenc Bari
- Department of Medical Physics and Informatics, Faculty of Medicine & Faculty of Science and Informatics, University of Szeged, Korányi Fasor 9, H-6720 Szeged, Hungary;
| | - László Janovák
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary; (M.M.A.); (Á.O.); (Á.D.)
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Abstract
Calcium phosphate nanoparticles have a high biocompatibility and biodegradability due to their chemical similarity to human hard tissue, for example, bone and teeth. They can be used as efficient carriers for different kinds of biomolecules such as nucleic acids, proteins, peptides, antibodies, or drugs, which alone are not able to enter cells where their biological effect is required. They can be loaded with cargo molecules by incorporating them, unlike solid nanoparticles, and also by surface functionalization. This offers protection, for example, against nucleases, and the possibility for cell targeting. If such nanoparticles are functionalized with fluorescing dyes, they can be applied for imaging in vitro and in vivo. Synthesis, functionalization and cell uptake mechanisms of calcium phosphate nanoparticles are discussed together with applications in transfection, gene silencing, imaging, immunization, and bone substitution. Biodistribution data of calcium phosphate nanoparticles in vivo are reviewed.
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Affiliation(s)
- Viktoriya Sokolova
- Inorganic chemistryUniversity of Duisburg-EssenUniversitaetsstr. 5–745117EssenGermany
| | - Matthias Epple
- Inorganic chemistryUniversity of Duisburg-EssenUniversitaetsstr. 5–745117EssenGermany
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27
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Zhu G, Zhang T, Chen M, Yao K, Huang X, Zhang B, Li Y, Liu J, Wang Y, Zhao Z. Bone physiological microenvironment and healing mechanism: Basis for future bone-tissue engineering scaffolds. Bioact Mater 2021; 6:4110-4140. [PMID: 33997497 PMCID: PMC8091181 DOI: 10.1016/j.bioactmat.2021.03.043] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/19/2021] [Accepted: 03/28/2021] [Indexed: 02/06/2023] Open
Abstract
Bone-tissue defects affect millions of people worldwide. Despite being common treatment approaches, autologous and allogeneic bone grafting have not achieved the ideal therapeutic effect. This has prompted researchers to explore novel bone-regeneration methods. In recent decades, the development of bone tissue engineering (BTE) scaffolds has been leading the forefront of this field. As researchers have provided deep insights into bone physiology and the bone-healing mechanism, various biomimicking and bioinspired BTE scaffolds have been reported. Now it is necessary to review the progress of natural bone physiology and bone healing mechanism, which will provide more valuable enlightenments for researchers in this field. This work details the physiological microenvironment of the natural bone tissue, bone-healing process, and various biomolecules involved therein. Next, according to the bone physiological microenvironment and the delivery of bioactive factors based on the bone-healing mechanism, it elaborates the biomimetic design of a scaffold, highlighting the designing of BTE scaffolds according to bone biology and providing the rationale for designing next-generation BTE scaffolds that conform to natural bone healing and regeneration.
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Affiliation(s)
- Guanyin Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Tianxu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Miao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Ke Yao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Xinqi Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Bo Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Yazhen Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Jun Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610041, PR China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
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28
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Lu J, Wang Z, Zhang H, Xu W, Zhang C, Yang Y, Zheng X, Xu J. Bone Graft Materials for Alveolar Bone Defects in Orthodontic Tooth Movement. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:35-51. [PMID: 33307972 DOI: 10.1089/ten.teb.2020.0212] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Clinically, orthodontic tooth movement (OTM) across the narrow alveolar ridge area inevitably entails some adverse reactions such as limited movement and periodontal tissue damage. Hence, it is essential to reconstruct the morphology of the alveolar crest before the tooth movement. Unlike the routine reconstruction of alveolar ridge in the field of implant, the orthodontic practices are distinctive, which require dental movement across the constructed alveolar ridge with safety and stability. Herein, we addressed the pros and cons of reconstruction of the defected orthodontic alveolar ridge with different bone graft materials. Attention is also paid to other factors such as the postgraft initiation time of OTM that can substantially influence the bone reconstruction and tooth movement effect. Rather, considering the lack of a unified standard in orthodontic clinics related to bone reconstruction for OTM, we provide some recommendations and guidance for OTM through alveolar ridge defect area.
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Affiliation(s)
- Jiajia Lu
- Key Lab. of Oral Diseases Research of Anhui Province, Stomatological Hospital and College, Anhui Medical University, Hefei, China
| | - Zishuo Wang
- School of Stomatology, Tongji University, Shanghai, China
| | - Hongyan Zhang
- Key Lab. of Oral Diseases Research of Anhui Province, Stomatological Hospital and College, Anhui Medical University, Hefei, China
| | - Wenhua Xu
- Key Lab. of Oral Diseases Research of Anhui Province, Stomatological Hospital and College, Anhui Medical University, Hefei, China
| | - Chengfei Zhang
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Xianyu Zheng
- Key Lab. of Oral Diseases Research of Anhui Province, Stomatological Hospital and College, Anhui Medical University, Hefei, China
| | - Jianguang Xu
- Key Lab. of Oral Diseases Research of Anhui Province, Stomatological Hospital and College, Anhui Medical University, Hefei, China
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Siddiqui N, Kishori B, Rao S, Anjum M, Hemanth V, Das S, Jabbari E. Electropsun Polycaprolactone Fibres in Bone Tissue Engineering: A Review. Mol Biotechnol 2021; 63:363-388. [PMID: 33689142 DOI: 10.1007/s12033-021-00311-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 02/20/2021] [Indexed: 01/17/2023]
Abstract
Regeneration of bone tissue requires novel load bearing, biocompatible materials that support adhesion, spreading, proliferation, differentiation, mineralization, ECM production and maturation of bone-forming cells. Polycaprolactone (PCL) has many advantages as a biomaterial for scaffold production including tuneable biodegradation, relatively high mechanical toughness at physiological temperature. Electrospinning produces nanofibrous porous matrices that mimic many properties of natural tissue extracellular matrix with regard to surface area, porosity and fibre alignment. The biocompatibility and hydrophilicity of PCL nanofibres can be improved by combining PCL with other biomaterials to form composite scaffolds for bone regeneration. This work reviews the most recent research on synthesis, characterization and cellular response to nanofibrous PCL scaffolds and the composites of PCL with other natural and synthetic materials for bone tissue engineering.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India.
| | - Braja Kishori
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Saranya Rao
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Mohammad Anjum
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Venkata Hemanth
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Swati Das
- Department of Genetic Engineering, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Esmaiel Jabbari
- Biomaterials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
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30
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Zamani Y, Amoabediny G, Mohammadi J, Zandieh-Doulabi B, Klein-Nulend J, Helder MN. Increased Osteogenic Potential of Pre-Osteoblasts on Three-Dimensional Printed Scaffolds Compared to Porous Scaffolds for Bone Regeneration. IRANIAN BIOMEDICAL JOURNAL 2021; 25:78-87. [PMID: 33461289 PMCID: PMC7921523 DOI: 10.29252/ibj.25.2.78] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background One of the main challenges with conventional scaffold fabrication methods is the inability to control scaffold architecture. Recently, scaffolds with controlled shape and architecture have been fabricated using three-dimensional printing (3DP). Herein, we aimed to determine whether the much tighter control of microstructure of 3DP poly(lactic-co-glycolic) acid/β-tricalcium phosphate (PLGA/β-TCP) scaffolds is more effective in promoting osteogenesis than porous scaffolds produced by solvent casting/porogen leaching. Methods Physical and mechanical properties of porous and 3DP scaffolds were studied. The response of pre-osteoblasts to the scaffolds was analyzed after 14 days. Results TThe 3DP scaffolds had a smoother surface (Ra: 22 ± 3 µm) relative to the highly rough surface of porous scaffolds (Ra: 110 ± 15 µm). Water contact angle was 112 ± 4° on porous and 76 ± 6° on 3DP scaffolds. Porous and 3DP scaffolds had the pore size of 408 ± 90 and 315 ± 17 µm and porosity of 85 ± 5% and 39 ± 7%, respectively. Compressive strength of 3DP scaffolds (4.0 ± 0.3 MPa) was higher than porous scaffolds (1.7 ± 0.2 MPa). Collagenous matrix deposition was similar on both scaffolds. Cells proliferated from day 1 to day 14 by fourfold in porous and by 3.8-fold in 3DP scaffolds. Alkaline phosphatase (ALP) activity was 21-fold higher in 3DP scaffolds than porous scaffolds. Conclusion The 3DP scaffolds show enhanced mechanical properties and ALP activity compared to porous scaffolds in vitro, suggesting that 3DP PLGA/β-TCP scaffolds are possibly more favorable for bone formation.
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Affiliation(s)
- Yasaman Zamani
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.,Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
| | - Ghassem Amoabediny
- Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran.,School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran.,Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers-location VUmc and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Javad Mohammadi
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Behrouz Zandieh-Doulabi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA)-University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA)-University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Marco N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers-location VUmc and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Amsterdam, the Netherlands
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Jyoti J, Kiran A, Sandhu M, Kumar A, Singh BP, Kumar N. Improved nanomechanical and in-vitro biocompatibility of graphene oxide-carbon nanotube hydroxyapatite hybrid composites by synergistic effect. J Mech Behav Biomed Mater 2021; 117:104376. [PMID: 33618240 DOI: 10.1016/j.jmbbm.2021.104376] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 01/27/2021] [Accepted: 01/31/2021] [Indexed: 12/26/2022]
Abstract
Hydroxyapatite (HAP) is an attractive bio-material for new bone growth process, hard tissue repair, bioactivity, osteoblast adhesion and proliferation due to its physicochemical resembles natural apatite. The intrinsic brittleness and poor mechanical properties of HAP restrict it for potential clinical applications. This problem is undertaken by exploiting the unique properties of carbon nanofillers (carbon nanotube (CNTs), graphene oxide (GO), graphene oxide-carbon nanotube (GCNTs) hybrid) which are used as reinforcement for preparing the carbon nanofillers based HAP composites. The nanomechanical and in-vitro biocompatibility of carbon nanofiller reinforced HAP composites have been studied. Carbon nanofiller reinforced HAP composites led to an improvement in nanomechanical and biocompatibility properties. The nanoindentation hardness and elastic modulus of GCNTs-HAP composites are significantly higher than other carbon nanofiller reinforced composites and pristine HAP powder. The in-vitro cytotoxicity of the prepared carbon nanofillers reinforced HAP composites is examined using MTT-assay on the MDCK cell line. The prepared GCNTs-HAP composites containing 2% of GCNTs nanofiller show higher cell viability, improved compatibility, and superior one cell proliferation induction than the other carbon nanofillers and HAP. These findings will provide the new prospects for utilizing the GO and its hybrid in HAP composites in bone repair, regeneration, augmentation and implantation.
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Affiliation(s)
- Jeevan Jyoti
- School of Mechanical Engineering Department, Indian Institute of Technology Ropar, Nangal Road, Rupnagr, 140001, Punjab, India
| | - Abhimanyu Kiran
- School of Mechanical Engineering Department, Indian Institute of Technology Ropar, Nangal Road, Rupnagr, 140001, Punjab, India
| | - Manjit Sandhu
- School of Mechanical Engineering Department, Indian Institute of Technology Ropar, Nangal Road, Rupnagr, 140001, Punjab, India
| | - Amit Kumar
- School of Mechanical Engineering Department, Indian Institute of Technology Ropar, Nangal Road, Rupnagr, 140001, Punjab, India
| | - Bhanu Pratap Singh
- Advanced Carbon Products and Metrology, CSIR-National Physical Laboratory, New Delhi, 110012, India.
| | - Navin Kumar
- School of Mechanical Engineering Department, Indian Institute of Technology Ropar, Nangal Road, Rupnagr, 140001, Punjab, India.
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Vasconcellos LMR, Santana-Melo GF, Silva E, Pereira VF, Araújo JCR, Silva ADR, Furtado ASA, Elias CDMV, Viana BC, Marciano FR, Lobo AO. Electrospun Poly(butylene-adipate-co-terephthalate)/Nano-hyDroxyapatite/Graphene Nanoribbon Scaffolds Improved the In Vivo Osteogenesis of the Neoformed Bone. J Funct Biomater 2021; 12:11. [PMID: 33562592 PMCID: PMC7931057 DOI: 10.3390/jfb12010011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 02/07/2023] Open
Abstract
Electrospun ultrathin fibrous scaffold filed with synthetic nanohydroxyapatite (nHAp) and graphene nanoribbons (GNR) has bioactive and osteoconductive properties and is a plausible strategy to improve bone regeneration. Poly(butylene-adipate-co-terephthalate) (PBAT) has been studied as fibrous scaffolds due to its low crystallinity, faster biodegradability, and good mechanical properties; however, its potential for in vivo applications remains underexplored. We proposed the application of electrospun PBAT with high contents of incorporated nHAp and nHAp/GNR nanoparticles as bone grafts. Ultrathin PBAT, PBAT/nHAp, and PBAT/nHAp/GNR fibers were produced using an electrospinning apparatus. The produced fibers were characterized morphologically and structurally using scanning electron (SEM) and high-resolution transmission electron (TEM) microscopies, respectively. Mechanical properties were analyzed using a texturometer. All scaffolds were implanted into critical tibia defects in rats and analyzed after two weeks using radiography, microcomputed tomography, histological, histomorphometric, and biomechanical analyses. The results showed through SEM and high-resolution TEM characterized the average diameters of the fibers (ranged from 0.208 µm ± 0.035 to 0.388 µm ± 0.087) and nHAp (crystallite around 0.28, 0.34, and 0.69 nm) and nHAp/GNR (200-300 nm) nanoparticles distribution into PBAT matrices. Ultrathin fibers were obtained, and the incorporated nHAp and nHAp/GNR nanoparticles were well distributed into PBAT matrices. The addition of nHAp and nHAp/GNR nanoparticles improved the elastic modulus of the ultrathin fibers compared to neat PBAT. High loads of nHAp/GNR (PBATnH5G group) improved the in vivo lamellar bone formation promoting greater radiographic density, trabecular number and stiffness in the defect area 2 weeks after implantation than control and PBAT groups.
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Affiliation(s)
- Luana Marotta Reis Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Sao Paulo 12450-000, Brazil; (G.F.S.-M.); (E.S.); (V.F.P.); (J.C.R.A.)
| | - Gabriela F. Santana-Melo
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Sao Paulo 12450-000, Brazil; (G.F.S.-M.); (E.S.); (V.F.P.); (J.C.R.A.)
| | - Edmundo Silva
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Sao Paulo 12450-000, Brazil; (G.F.S.-M.); (E.S.); (V.F.P.); (J.C.R.A.)
| | - Vanessa Fernandes Pereira
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Sao Paulo 12450-000, Brazil; (G.F.S.-M.); (E.S.); (V.F.P.); (J.C.R.A.)
| | - Juliani Caroline Ribeiro Araújo
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Sao Paulo 12450-000, Brazil; (G.F.S.-M.); (E.S.); (V.F.P.); (J.C.R.A.)
| | | | - André S. A. Furtado
- LIMAV—Interdisciplinary Laboratory for Advanced Materials, UFPI-Federal University of Piaui, Teresina 64049-550, Brazil;
| | | | - Bartolomeu Cruz Viana
- Department of Physics, Federal University of Piaui, Teresina 64049-550, Brazil; (B.C.V.); (F.R.M.)
| | | | - Anderson Oliveira Lobo
- LIMAV—Interdisciplinary Laboratory for Advanced Materials, UFPI-Federal University of Piaui, Teresina 64049-550, Brazil;
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Kovylin RS, Aleynik DY, Fedushkin IL. Modern Porous Polymer Implants: Synthesis, Properties, and Application. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
The needs of modern surgery triggered the intensive development of transplantology, medical materials science, and tissue engineering. These directions require the use of innovative materials, among which porous polymers occupy one of the leading positions. The use of natural and synthetic polymers makes it possible to adjust the structure and combination of properties of a material to its particular application. This review generalizes and systematizes the results of recent studies describing requirements imposed on the structure and properties of synthetic (or artificial) porous polymer materials and implants on their basis and the advantages and limitations of synthesis methods. The most extensively employed, promising initial materials are considered, and the possible areas of application of polymer implants based on these materials are highlighted.
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Liao C, Li Y, Tjong SC. Polyetheretherketone and Its Composites for Bone Replacement and Regeneration. Polymers (Basel) 2020; 12:E2858. [PMID: 33260490 PMCID: PMC7760052 DOI: 10.3390/polym12122858] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/23/2020] [Accepted: 07/25/2020] [Indexed: 12/18/2022] Open
Abstract
In this article, recent advances in the development, preparation, biocompatibility and mechanical properties of polyetheretherketone (PEEK) and its composites for hard and soft tissue engineering are reviewed. PEEK has been widely employed for fabricating spinal fusions due to its radiolucency, chemical stability and superior sterilization resistance at high temperatures. PEEK can also be tailored into patient-specific implants for treating orbital and craniofacial defects in combination with additive manufacturing process. However, PEEK is bioinert, lacking osseointegration after implantation. Accordingly, several approaches including surface roughening, thin film coating technology, and addition of bioactive hydroxyapatite (HA) micro-/nanofillers have been adopted to improve osseointegration performance. The elastic modulus of PEEK is 3.7-4.0 GPa, being considerably lower than that of human cortical bone ranging from 7-30 GPa. Thus, PEEK is not stiff enough to sustain applied stress in load-bearing orthopedic implants. Therefore, HA micro-/nanofillers, continuous and discontinuous carbon fibers are incorporated into PEEK for enhancing its stiffness for load-bearing applications. Among these, carbon fibers are more effective than HA micro-/nanofillers in providing additional stiffness and load-bearing capabilities. In particular, the tensile properties of PEEK composite with 30wt% short carbon fibers resemble those of cortical bone. Hydrophobic PEEK shows no degradation behavior, thus hampering its use for making porous bone scaffolds. PEEK can be blended with hydrophilic polymers such as polyglycolic acid and polyvinyl alcohol to produce biodegradable scaffolds for bone tissue engineering applications.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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The role of nanohydroxyapatite on the morphological, physical, and biological properties of chitosan nanofibers. Clin Oral Investig 2020; 25:3095-3103. [PMID: 33047204 DOI: 10.1007/s00784-020-03633-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES This study aimed to evaluate the effects of nanohydroxyapatite (nHAp) particles on the morphological, chemical, physical, and biological properties of chitosan electrospun nanofibers. MATERIALS AND METHODS nHAp particles with a 1.67 Ca/P ratio were synthesized via the aqueous precipitation method, incorporated into chitosan polymer solution (0.5 wt%), and electrospun into nHAp-loaded fibers (ChHa fibers). Neat chitosan fibers (nHAp-free, Ch fibers) were used as the control. The electrospun fiber mats were characterized using morphological, topographical, chemical, thermal, and a range of biological (antibacterial, antibiofilm, cell viability, and alkaline phosphatase [ALP] activity) analyses. Data were analyzed using ANOVA and Tukey's test (α = 0.05). RESULTS ChHa fibers demonstrated a bead-like morphology, with thinner (331 ± 110 nm) and smoother (Ra = 2.9 ± 0.3 μm) distribution as compared to the control fibers. Despite showing similar cell viability and ALP activity to Ch fibers, the ChHa fibers demonstrated greater antibacterial potential against most tested bacteria (except for P. intermedia), and higher antibiofilm activity against P. gingivalis biofilm. CONCLUSIONS The incorporation of nHAp particles did not jeopardize the overall morphology, topography, physical, and biological characteristics of the chitosan nanofibers. CLINICAL RELEVANCE The combination of nHAp particles with chitosan can be used to engineer bioactive, electrospun composite nanofibers with potential applications in regenerative dentistry.
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da Fonseca GF, Avelino SDOM, Mello DDCR, do Prado RF, Campos TMB, de Vasconcellos LMR, de Sousa Trichês E, Borges ALS. Scaffolds of PCL combined to bioglass: synthesis, characterization and biological performance. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:41. [PMID: 32350625 DOI: 10.1007/s10856-020-06382-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Biomaterials may be useful in filling lost bone portions in order to restore balance and improve bone regeneration. The objective of this study was to produce polycaprolactone (PCL) membranes combined with two types of bioglass (Sol-Gel and melt-quenched) and determine their physical and biological properties. Membranes were produced through electrospinning. This study presented three experimental groups: pure PCL membranes, PCL-Melt-Bioglass and PCL-Sol-gel-Bioglass. Membranes were characterized using Scanning Electron Microscopy, Fourier Transform Infrared Spectrophotometry (FTIR), Energy-Dispersive Spectroscopy and Zeta Potential. The following in vitro tests were performed: MTT assay, alkaline phosphatase activity, total protein content and mineralization nodules. Twenty-four male rats were used to observe biological performance through radiographic, fracture energy, histological and histomorphometric analyses. The physical and chemical analysis results showed success in manufacturing bioactive membranes which significantly enhanced cell viability and osteoblast differentiation. The new formed bone from the in vivo experiment was similar to that observed in the control group. In conclusion, the electrospinning enabled preparing PCL membranes with bioglass incorporated into the structure and onto the surface of PCL fibers. The microstructure of the PCL membranes was influenced by the bioglass production method. Both bioglasses seem to be promising biomaterials to improve bone tissue regeneration when incorporated into PCL.
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Affiliation(s)
- Gabriela Fernandes da Fonseca
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Sarah de Oliveira Marco Avelino
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Daphne de Camargo Reis Mello
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Renata Falchete do Prado
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil.
| | - Tiago Moreira Bastos Campos
- Technological Institute of Aeronautics (ITA), Praça Marechal Eduardo Gomes, 50 Vila das Acácias, São José dos Campos, SP, 12228-900, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Eliandra de Sousa Trichês
- Bioceramics Laboratory (BIOCERAM), Institute of Science and Technology, Federal University of São Paulo-UNIFESP, Av. Cesare Monsueto Giulio Lattes1201-Eugênio de Melo, São José dos Campos, SP, 12247-014, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
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Nyoka M, Choonara YE, Kumar P, Kondiah PPD, Pillay V. Synthesis of Cerium Oxide Nanoparticles Using Various Methods: Implications for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E242. [PMID: 32013189 PMCID: PMC7075153 DOI: 10.3390/nano10020242] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/12/2022]
Abstract
Cerium oxide nanoparticles have been used in a number of non-medical products over the years. The therapeutic application of these nanoparticles has mainly been due to their oxidative stress ameliorating abilities. Their enzyme-mimetic catalytic ability to change between the Ce3+ and Ce4+ species makes them ideal for a role as free-radical scavengers for systemic diseases as well as neurodegenerative diseases. In this review, we look at various methods of synthesis (including the use of stabilizing/capping agents and precursors), and how the synthesis method affects the physicochemical properties, their behavior in biological environments, their catalytic abilities as well as their reported toxicity.
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Affiliation(s)
| | | | | | | | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (M.N.); (Y.E.C.); (P.K.); (P.P.D.K.)
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38
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Fan D, Staufer U, Accardo A. Engineered 3D Polymer and Hydrogel Microenvironments for Cell Culture Applications. Bioengineering (Basel) 2019; 6:E113. [PMID: 31847117 PMCID: PMC6955903 DOI: 10.3390/bioengineering6040113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/13/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022] Open
Abstract
The realization of biomimetic microenvironments for cell biology applications such as organ-on-chip, in vitro drug screening, and tissue engineering is one of the most fascinating research areas in the field of bioengineering. The continuous evolution of additive manufacturing techniques provides the tools to engineer these architectures at different scales. Moreover, it is now possible to tailor their biomechanical and topological properties while taking inspiration from the characteristics of the extracellular matrix, the three-dimensional scaffold in which cells proliferate, migrate, and differentiate. In such context, there is therefore a continuous quest for synthetic and nature-derived composite materials that must hold biocompatible, biodegradable, bioactive features and also be compatible with the envisioned fabrication strategy. The structure of the current review is intended to provide to both micro-engineers and cell biologists a comparative overview of the characteristics, advantages, and drawbacks of the major 3D printing techniques, the most promising biomaterials candidates, and the trade-offs that must be considered in order to replicate the properties of natural microenvironments.
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Affiliation(s)
| | | | - Angelo Accardo
- Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; (D.F.); (U.S.)
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The Role of Functionalization in the Applications of Carbon Materials: An Overview. C — JOURNAL OF CARBON RESEARCH 2019. [DOI: 10.3390/c5040084] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The carbon-based materials (CbMs) refer to a class of substances in which the carbon atoms can assume different hybridization states (sp1, sp2, sp3) leading to different allotropic structures -. In these substances, the carbon atoms can form robust covalent bonds with other carbon atoms or with a vast class of metallic and non-metallic elements, giving rise to an enormous number of compounds from small molecules to long chains to solids. This is one of the reasons why the carbon chemistry is at the basis of the organic chemistry and the biochemistry from which life on earth was born. In this context, the surface chemistry assumes a substantial role dictating the physical and chemical properties of the carbon-based materials. Different functionalities are obtained by bonding carbon atoms with heteroatoms (mainly oxygen, nitrogen, sulfur) determining a certain reactivity of the compound which otherwise is rather weak. This holds for classic materials such as the diamond, the graphite, the carbon black and the porous carbon but functionalization is widely applied also to the carbon nanostructures which came at play mainly in the last two decades. As a matter of fact, nowadays, in addition to fabrication of nano and porous structures, the functionalization of CbMs is at the basis of a number of applications as catalysis, energy conversion, sensing, biomedicine, adsorption etc. This work is dedicated to the modification of the surface chemistry reviewing the different approaches also considering the different macro and nano allotropic forms of carbon.
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Vasile E, Pandele AM, Andronescu C, Selaru A, Dinescu S, Costache M, Hanganu A, Raicopol MD, Teodorescu M. Hema-Functionalized Graphene Oxide: a Versatile Nanofiller for Poly(Propylene Fumarate)-Based Hybrid Materials. Sci Rep 2019; 9:18685. [PMID: 31822794 PMCID: PMC6904734 DOI: 10.1038/s41598-019-55081-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
Poly(propylene fumarate) (PPF) is a linear unsaturated polyester which has been widely investigated for tissue engineering due to its good biocompatibility and biodegradability. In order to extend the range of possible applications and enhance its mechanical properties, current approaches consist in the incorporation of various fillers or obtaining blends with other polymers. In the current study we designed a reinforcing agent based on carboxylated graphene oxide (GO-COOH) grafted with 2-hydroxyethyl methacrylate (GO@HEMA) for poly(propylene fumarate)/poly(ethylene glycol) dimethacrylate (PPF/PEGDMA), in order to enhance the nanofiller adhesion and compatibility with the polymer matrix, and in the same time to increase the crosslinking density. The covalent modification of GO-COOH was proved by Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and Raman spectroscopy. The mechanical properties, water uptake capacity, morphology, biodegradability, mineralization and in vitro cytotoxicity of PPF/PEGDMA hybrid materials containing GO@HEMA were investigated. A 14-fold increase of the compressive modulus and a 2-fold improvement in compressive strength were observed after introduction of the nanofiller. Moreover, the decrease in sol fraction and solvent swelling in case of the hybrid materials containing GO@HEMA suggests an increase of the crosslinking density. SEM images illustrate an exfoliated structure at lower nanofiller content and a tendency for agglomeration at higher concentrations. Finally, the synthesized hybrid materials proved non-cytotoxic to murine pre-osteoblast cells and induced the formation of hydroxyapatite crystals under mineralization conditions.
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Affiliation(s)
- Eugeniu Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Polizu St., 011061, Bucharest, Romania
| | - Andreea M Pandele
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Polizu St., 011061, Bucharest, Romania
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Polizu St., 011061, Bucharest, Romania
| | - Corina Andronescu
- Chemical Technology III, University of Duisburg-Essen, Carl-Benz-Straße 199, D-47057, Duisburg, Germany
- CENIDE Center for Nanointegration, University of Duisburg-Essen, Carl-Benz-Straße 199, D-47057, Duisburg, Germany
| | - Aida Selaru
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Anamaria Hanganu
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, 90-92 Şos. Panduri, 050657, Bucharest, Romania
| | - Matei D Raicopol
- Costin Nenitzescu" Department of Organic Chemistry, University Politehnica of Bucharest, 1-7 Polizu St., 011061, Bucharest, Romania.
| | - Mircea Teodorescu
- Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Polizu St., 011061, Bucharest, Romania
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Agüero A, Morcillo MDC, Quiles-Carrillo L, Balart R, Boronat T, Lascano D, Torres-Giner S, Fenollar O. Study of the Influence of the Reprocessing Cycles on the Final Properties of Polylactide Pieces Obtained by Injection Molding. Polymers (Basel) 2019; 11:E1908. [PMID: 31756897 PMCID: PMC6960523 DOI: 10.3390/polym11121908] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/14/2019] [Accepted: 11/18/2019] [Indexed: 01/21/2023] Open
Abstract
This research work aims to study the influence of the reprocessing cycles on the mechanical, thermal, and thermomechanical properties of polylactide (PLA). To this end, PLA was subjected to as many as six extrusion cycles and the resultant pellets were shaped into pieces by injection molding. Mechanical characterization revealed that the PLA pieces presented relatively similar properties up to the third reprocessing cycle, whereas further cycles induced an intense reduction in ductility and toughness. The effect of the reprocessing cycles was also studied by the changes in the melt fluidity, which showed a significant increase after four reprocessing cycles. An increase in the bio-polyester chain mobility was also attained with the number of the reprocessing cycles that subsequently favored an increase in crystallinity of PLA. A visual inspection indicated that PLA developed certain yellowing and the pieces also became less transparent with the increasing number of reprocessing cycles. Therefore, the obtained results showed that PLA suffers a slight degradation after one or two reprocessing cycles whereas performance impairment becomes more evident above the fourth reprocessing cycle. This finding suggests that the mechanical recycling of PLA for up to three cycles of extrusion and subsequent injection molding is technically feasible.
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Affiliation(s)
- Angel Agüero
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Maria del Carmen Morcillo
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Luis Quiles-Carrillo
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Rafael Balart
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Teodomiro Boronat
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
| | - Diego Lascano
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
- Escuela Politécnica Nacional, Quito 17-01-2759, Ecuador
| | - Sergio Torres-Giner
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
| | - Octavio Fenollar
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain; (A.A.); (M.d.C.M.); (L.Q.-C.); (R.B.); (T.B.); (O.F.)
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Llenas M, Sandoval S, Costa PM, Oró-Solé J, Lope-Piedrafita S, Ballesteros B, Al-Jamal KT, Tobias G. Microwave-Assisted Synthesis of SPION-Reduced Graphene Oxide Hybrids for Magnetic Resonance Imaging (MRI). NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1364. [PMID: 31554159 PMCID: PMC6835838 DOI: 10.3390/nano9101364] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/11/2022]
Abstract
Magnetic resonance imaging (MRI) is a useful tool for disease diagnosis and treatment monitoring. Superparamagnetic iron oxide nanoparticles (SPION) show good performance as transverse relaxation (T2) contrast agents, thus facilitating the interpretation of the acquired images. Attachment of SPION onto nanocarriers prevents their agglomeration, improving the circulation time and efficiency. Graphene derivatives, such as graphene oxide (GO) and reduced graphene oxide (RGO), are appealing nanocarriers since they have both high surface area and functional moieties that make them ideal substrates for the attachment of nanoparticles. We have employed a fast, simple and environmentally friendly microwave-assisted approach for the synthesis of SPION-RGO hybrids. Different iron precursor/GO ratios were used leading to SPION, with a median diameter of 7.1 nm, homogeneously distributed along the RGO surface. Good relaxivity (r2*) values were obtained in MRI studies and no significant toxicity was detected within in vitro tests following GL261 glioma and J774 macrophage-like cells for 24 h with SPION-RGO, demonstrating the applicability of the hybrids as T2-weighted MRI contrast agents.
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Affiliation(s)
- Marina Llenas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra (Barcelona), Spain.
| | - Stefania Sandoval
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra (Barcelona), Spain.
| | - Pedro M Costa
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, UK.
| | - Judith Oró-Solé
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra (Barcelona), Spain.
| | - Silvia Lope-Piedrafita
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain.
- Centro de Investigación Biomédica en Red-Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain.
| | - Belén Ballesteros
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona), Spain.
| | - Khuloud T Al-Jamal
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, UK.
| | - Gerard Tobias
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra (Barcelona), Spain.
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Montava-Jorda S, Chacon V, Lascano D, Sanchez-Nacher L, Montanes N. Manufacturing and Characterization of Functionalized Aliphatic Polyester from Poly(lactic acid) with Halloysite Nanotubes. Polymers (Basel) 2019; 11:E1314. [PMID: 31390814 PMCID: PMC6722548 DOI: 10.3390/polym11081314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 07/31/2019] [Accepted: 08/03/2019] [Indexed: 02/07/2023] Open
Abstract
This work reports the potential of poly(lactic acid)-PLA composites with different halloysite nanotube (HNTs) loading (3, 6 and 9 wt%) for further uses in advanced applications as HNTs could be used as carriers for active compounds for medicine, packaging and other sectors. This work focuses on the effect of HNTs on mechanical, thermal, thermomechanical and degradation of PLA composites with HNTs. These composites can be manufactured by conventional extrusion-compounding followed by injection molding. The obtained results indicate a slight decrease in tensile and flexural strength as well as in elongation at break, both properties related to material cohesion. On the contrary, the stiffness increases with the HNTs content. The tensile strength and modulus change from 64.6 MPa/2.1 GPa (neat PLA) to 57.7/2.3 GPa MPa for the composite with 9 wt% HNTs. The elongation at break decreases from 6.1% (neat PLA) down to a half for composites with 9 wt% HNTs. Regarding flexural properties, the flexural strength and modulus change from 116.1 MPa and 3.6 GPa respectively for neat PLA to values of 107.6 MPa and 3.9 GPa for the composite with 9 wt% HNTs. HNTs do not affect the glass transition temperature with invariable values of about 64 °C, or the melt peak temperature, while they move the cold crystallization process towards lower values, from 112.4 °C for neat PLA down to 105.4 °C for the composite containing 9 wt% HNTs. The water uptake has been assessed to study the influence of HNTs on the water saturation. HNTs contribute to increased hydrophilicity with a change in the asymptotic water uptake from 0.95% (neat PLA) up to 1.67% (PLA with 9 wt % HNTs) and the effect of HNTs on disintegration in controlled compost soil has been carried out to see the influence of HNTs on this process, which is a slight delay on it. These PLA-HNT composites show good balanced properties and could represent an interesting solution to develop active materials.
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Affiliation(s)
- Sergi Montava-Jorda
- Department of Mechanical and Materials Engineering, Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain
| | - Victor Chacon
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain
| | - Diego Lascano
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
- Escuela Politécnica Nacional, 17-01-2759 Quito, Ecuador.
| | - Lourdes Sanchez-Nacher
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain
| | - Nestor Montanes
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain
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Liao C, Li Y, Tjong SC. Antibacterial Activities of Aliphatic Polyester Nanocomposites with Silver Nanoparticles and/or Graphene Oxide Sheets. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1102. [PMID: 31374855 PMCID: PMC6724040 DOI: 10.3390/nano9081102] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 12/18/2022]
Abstract
Aliphatic polyesters such as poly(lactic acid) (PLA), polycaprolactone (PCL) and poly(lactic-co-glycolic) acid (PLGA) copolymers have been widely used as biomaterials for tissue engineering applications including: bone fixation devices, bone scaffolds, and wound dressings in orthopedics. However, biodegradable aliphatic polyesters are prone to bacterial infections due to the lack of antibacterial moieties in their macromolecular chains. In this respect, silver nanoparticles (AgNPs), graphene oxide (GO) sheets and AgNPs-GO hybrids can be used as reinforcing nanofillers for aliphatic polyesters in forming antimicrobial nanocomposites. However, polymeric matrix materials immobilize nanofillers to a large extent so that they cannot penetrate bacterial membrane into cytoplasm as in the case of colloidal nanoparticles or nanosheets. Accordingly, loaded GO sheets of aliphatic polyester nanocomposites have lost their antibacterial functions such as nanoknife cutting, blanket wrapping and membrane phospholipid extraction. In contrast, AgNPs fillers of polyester nanocomposites can release silver ions for destroying bacterial cells. Thus, AgNPs fillers are more effective than loaded GO sheets of polyester nanocomposiites in inhibiting bacterial infections. Aliphatic polyester nanocomposites with AgNPs and AgNPs-GO fillers are effective to kill multi-drug resistant bacteria that cause medical device-related infections.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China.
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