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Tang X, Wang Y, Liu N, Deng X, Zhou Z, Yu C, Wang Y, Fang K, Wu T. Methacrylated Carboxymethyl Chitosan Scaffold Containing Icariin-Loaded Short Fibers for Antibacterial, Hemostasis, and Bone Regeneration. ACS Biomater Sci Eng 2024. [PMID: 38935742 DOI: 10.1021/acsbiomaterials.4c00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Bone defects typically result in bone nonunion, delayed or nonhealing, and localized dysfunction, and commonly used clinical treatments (i.e., autologous and allogeneic grafts) have limited results. The multifunctional bone tissue engineering scaffold provides a new treatment for the repair of bone defects. Herein, a three-dimensional porous composite scaffold with stable mechanical support, effective antibacterial and hemostasis properties, and the ability to promote the rapid repair of bone defects was synthesized using methacrylated carboxymethyl chitosan and icariin-loaded poly-l-lactide/gelatin short fibers (M-CMCS-SFs). Icariin-loaded SFs in the M-CMCS scaffold resulted in the sustained release of osteogenic agents, which was beneficial for mechanical reinforcement. Both the porous structure and the use of chitosan facilitate the effective absorption of blood and fluid exudates. Moreover, its superior antibacterial properties could prevent the occurrence of inflammation and infection. When cultured with bone mesenchymal stem cells, the composite scaffold showed a promotion in osteogenic differentiation. Taken together, such a multifunctional composite scaffold showed comprehensive performance in antibacterial, hemostasis, and bone regeneration, thus holding promising potential in the repair of bone defects and related medical treatments.
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Affiliation(s)
- Xunmeng Tang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Yawen Wang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Na Liu
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
| | - Xinyuan Deng
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
| | - Ziyi Zhou
- Department of Plastic, Reconstructive and Cosmetic Surgery, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Chenghao Yu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
| | - Yuanfei Wang
- Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao 266001, China
| | - Kuanjun Fang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
- Laboratory for Manufacturing Low Carbon and Functionalized Textiles in the Universities of Shandong Province, State Key Laboratory for Biofibers and Eco-textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, China
| | - Tong Wu
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266000, China
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Lv Z, Ji Y, Wen G, Liang X, Zhang K, Zhang W. Structure-optimized and microenvironment-inspired nanocomposite biomaterials in bone tissue engineering. BURNS & TRAUMA 2024; 12:tkae036. [PMID: 38855573 PMCID: PMC11162833 DOI: 10.1093/burnst/tkae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/11/2024] [Accepted: 05/23/2024] [Indexed: 06/11/2024]
Abstract
Critical-sized bone defects represent a significant clinical challenge due to their inability to undergo spontaneous regeneration, necessitating graft interventions for effective treatment. The development of tissue-engineered scaffolds and regenerative medicine has made bone tissue engineering a highly viable treatment for bone defects. The physical and biological properties of nanocomposite biomaterials, which have optimized structures and the ability to simulate the regenerative microenvironment of bone, are promising for application in the field of tissue engineering. These biomaterials offer distinct advantages over traditional materials by facilitating cellular adhesion and proliferation, maintaining excellent osteoconductivity and biocompatibility, enabling precise control of degradation rates, and enhancing mechanical properties. Importantly, they can simulate the natural structure of bone tissue, including the specific microenvironment, which is crucial for promoting the repair and regeneration of bone defects. This manuscript provides a comprehensive review of the recent research developments and applications of structure-optimized and microenvironment-inspired nanocomposite biomaterials in bone tissue engineering. This review focuses on the properties and advantages these materials offer for bone repair and tissue regeneration, summarizing the latest progress in the application of nanocomposite biomaterials for bone tissue engineering and highlighting the challenges and future perspectives in the field. Through this analysis, the paper aims to underscore the promising potential of nanocomposite biomaterials in bone tissue engineering, contributing to the informed design and strategic planning of next-generation biomaterials for regenerative medicine.
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Affiliation(s)
- Zheng Lv
- Department of Radiology, Affiliated Hospital, Guilin Medical University, No. 15 Lequn Road, Guilin 541001, Guangxi, China
| | - Ying Ji
- Department of Orthopaedics, Affiliated Hospital, Guilin Medical University, No. 15 Lequn Road, Guilin 541001, Guangxi, China
| | - Guoliang Wen
- Department of Radiology, Affiliated Hospital, Guilin Medical University, No. 15 Lequn Road, Guilin 541001, Guangxi, China
| | - Xiayi Liang
- Department of Medical Ultrasound, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu 610072, Sichuan, China
| | - Kun Zhang
- Department of Medical Ultrasound, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu 610072, Sichuan, China
| | - Wei Zhang
- Department of Radiology, Liuzhou People’s Hospital, Guangxi Medical University, No. 8 Wenchang Road, Liuzhou 545006, Guangxi, China
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Diez-Escudero A, Espanol M, Ginebra MP. High-aspect-ratio nanostructured hydroxyapatite: towards new functionalities for a classical material. Chem Sci 2023; 15:55-76. [PMID: 38131070 PMCID: PMC10732134 DOI: 10.1039/d3sc05344j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Hydroxyapatite-based materials have been widely used in countless applications, such as bone regeneration, catalysis, air and water purification or protein separation. Recently, much interest has been given to controlling the aspect ratio of hydroxyapatite crystals from bulk samples. The ability to exert control over the aspect ratio may revolutionize the applications of these materials towards new functional materials. Controlling the shape, size and orientation of HA crystals allows obtaining high aspect ratio structures, improving several key properties of HA materials such as molecule adsorption, ion exchange, catalytic reactions, and even overcoming the well-known brittleness of ceramic materials. Regulating the morphogenesis of HA crystals to form elongated oriented fibres has led to flexible inorganic synthetic sponges, aerogels, membranes, papers, among others, with applications in sustainability, energy and catalysis, and especially in the biomedical field.
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Affiliation(s)
- Anna Diez-Escudero
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC) Av. Eduard Maristany 16 08019 Barcelona Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology Baldiri Reixac 10-12 08028 Barcelona Spain
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Zheng XQ, Huang J, Lin JL, Song CL. Pathophysiological mechanism of acute bone loss after fracture. J Adv Res 2023; 49:63-80. [PMID: 36115662 PMCID: PMC10334135 DOI: 10.1016/j.jare.2022.08.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 07/29/2022] [Accepted: 08/31/2022] [Indexed: 10/14/2022] Open
Abstract
BACKGROUND Acute bone loss after fracture is associated with various effects on the complete recovery process and a risk of secondary fractures among patients. Studies have reported similarities in pathophysiological mechanisms involved in acute bone loss after fractures and osteoporosis. However, given the silence nature of bone loss and bone metabolism complexities, the actual underlying pathophysiological mechanisms have yet to be fully elucidated. AIM OF REVIEW To elaborate the latest findings in basic research with a focus on acute bone loss after fracture. To briefly highlight potential therapeutic targets and current representative drugs. To arouse researchers' attention and discussion on acute bone loss after fracture. KEY SCIENTIFIC CONCEPTS OF REVIEW Bone loss after fracture is associated with immobilization, mechanical unloading, blood supply damage, sympathetic nerve regulation, and crosstalk between musculoskeletals among other factors. Current treatment strategies rely on regulation of osteoblasts and osteoclasts, therefore, there is a need to elucidate on the underlying mechanisms of acute bone loss after fractures to inform the development of efficacious and safe drugs. In addition, attention should be paid towards ensuring long-term skeletal health.
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Affiliation(s)
- Xuan-Qi Zheng
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Jie Huang
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Jia-Liang Lin
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Chun-Li Song
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, China.
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Farkas NI, Marincaș L, Barbu-Tudoran L, Barabás R, Turdean GL. Investigation of the Real-Time Release of Doxycycline from PLA-Based Nanofibers. J Funct Biomater 2023; 14:331. [PMID: 37367295 DOI: 10.3390/jfb14060331] [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: 06/06/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 06/28/2023] Open
Abstract
Electrospun mats of PLA and PLA/Hap nanofibers produced by electrospinning were loaded with doxycycline (Doxy) through physical adsorption from a solution with initial concentrations of 3 g/L, 7 g/L, and 12 g/L, respectively. The morphological characterization of the produced material was performed using scanning electron microscopy (SEM). The release profiles of Doxy were studied in situ using the differential pulse voltammetry (DPV) electrochemical method on a glassy carbon electrode (GCE) and validated through UV-VIS spectrophotometric measurements. The DPV method has been shown to be a simple, rapid, and advantageous analytical technique for real-time measurements, allowing accurate kinetics to be established. The kinetics of the release profiles were compared using model-dependent and model-independent analyses. The diffusion-controlled mechanism of Doxy release from both types of fibers was confirmed by a good fit to the Korsmeyer-Peppas model.
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Affiliation(s)
- Noémi-Izabella Farkas
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany János Street, 400028 Cluj-Napoca, Romania
| | - Laura Marincaș
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany János Street, 400028 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeș-Bolyai University, 1 Mihail Kogălniceanu Street, 400084 Cluj-Napoca, Romania
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donath Street, 400293 Cluj-Napoca, Romania
| | - Réka Barabás
- Department of Chemistry and Chemical Engineering of Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany János Street, 400028 Cluj-Napoca, Romania
| | - Graziella Liana Turdean
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany János Street, 400028 Cluj-Napoca, Romania
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Turhan EA, Akbaba S, Tezcaner A, Evis Z. Boron nitride nanofiber/Zn-doped hydroxyapatite/polycaprolactone scaffolds for bone tissue engineering applications. BIOMATERIALS ADVANCES 2023; 148:213382. [PMID: 36963343 DOI: 10.1016/j.bioadv.2023.213382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/21/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023]
Abstract
In this study, Zn doped hydroxyapatite (Zn HA)/boron nitride nanofiber (BNNF)/poly-ε-caprolactone (PCL) composite aligned fibrous scaffolds are produced with rotary jet spinning (RJS) for bone tissue engineering applications. It is hypothesized that addition of Zn HA and BNNF will contribute to cell viability as well as mechanical and osteogenic properties of the PCL scaffolds. Zn HA was synthesized by mixing Ca and P sources followed by sonication and aging whereas BNNF was obtained by the reaction of melamine with boric acid followed by freeze-drying for annealing of fibers. It is found that incorporation of both Zn HA and BNNF in PCL fibers resulted in higher calcium phosphate (CaP) precipitation on the scaffolds. Also, in vitro cell culture studies showed that presence of both Zn HA and BNNF also had synergistic effect for enhanced proliferation and osteogenic activity of Saos-2 cells. Mechanical properties of PCL-Zn HA-BNNF were found similar to that of non-load bearing bones. Furthermore, the presence of Zn HA and BNNF had synergistic effects to cell attachment, proliferation and spreading without causing cytotoxic effect on cells. The highest ALP activity was obtained in the PCL-Zn HA- BNNF group at days 7 and 14 due to release of zinc, calcium, phosphate and boron. Considering its mechanical and bioactivity properties, PCL-Zn HA-BNNF composite scaffolds hold promise as non-load bearing bone substitutes.
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Affiliation(s)
- Emine Ayşe Turhan
- Department of Micro and Nanotechnology, Middle East Technical University, Ankara 06800, Turkey
| | - Sema Akbaba
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Boron Research Institute, Turkish Energy Nuclear and Mineral Research Agency, Ankara 06520, Turkey
| | - Ayşen Tezcaner
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey; Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara 06800, Turkey
| | - Zafer Evis
- Department of Micro and Nanotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey.
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Zhang Q, Qiang L, Liu Y, Fan M, Si X, Zheng P. Biomaterial-assisted tumor therapy: A brief review of hydroxyapatite nanoparticles and its composites used in bone tumors therapy. Front Bioeng Biotechnol 2023; 11:1167474. [PMID: 37091350 PMCID: PMC10119417 DOI: 10.3389/fbioe.2023.1167474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/24/2023] [Indexed: 04/25/2023] Open
Abstract
Malignant bone tumors can inflict significant damage to affected bones, leaving patients to contend with issues like residual tumor cells, bone defects, and bacterial infections post-surgery. However, hydroxyapatite nanoparticles (nHAp), the principal inorganic constituent of natural bone, possess numerous advantages such as high biocompatibility, bone conduction ability, and a large surface area. Moreover, nHAp's nanoscale particle size enables it to impede the growth of various tumor cells via diverse pathways. This article presents a comprehensive review of relevant literature spanning the past 2 decades concerning nHAp and bone tumors. The primary goal is to explore the mechanisms responsible for nHAp's ability to hinder tumor initiation and progression, as well as to investigate the potential of integrating other drugs and components for bone tumor diagnosis and treatment. Lastly, the article discusses future prospects for the development of hydroxyapatite materials as a promising modality for tumor therapy.
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Affiliation(s)
- Quan Zhang
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Lei Qiang
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yihao Liu
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Shanghai Key Laboratory of Orthopedic Implant, Department of Orthopedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Minjie Fan
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Xinxin Si
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
- *Correspondence: Xinxin Si, ; Pengfei Zheng,
| | - Pengfei Zheng
- Department of Orthopaedic Surgery, Children’s Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Xinxin Si, ; Pengfei Zheng,
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Elyaderani AK, De Lama-Odría MDC, del Valle LJ, Puiggalí J. Multifunctional Scaffolds Based on Emulsion and Coaxial Electrospinning Incorporation of Hydroxyapatite for Bone Tissue Regeneration. Int J Mol Sci 2022; 23:ijms232315016. [PMID: 36499342 PMCID: PMC9738225 DOI: 10.3390/ijms232315016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
Tissue engineering is nowadays a powerful tool to restore damaged tissues and recover their normal functionality. Advantages over other current methods are well established, although a continuous evolution is still necessary to improve the final performance and the range of applications. Trends are nowadays focused on the development of multifunctional scaffolds with hierarchical structures and the capability to render a sustained delivery of bioactive molecules under an appropriate stimulus. Nanocomposites incorporating hydroxyapatite nanoparticles (HAp NPs) have a predominant role in bone tissue regeneration due to their high capacity to enhance osteoinduction, osteoconduction, and osteointegration, as well as their encapsulation efficiency and protection capability of bioactive agents. Selection of appropriated polymeric matrices is fundamental and consequently great efforts have been invested to increase the range of properties of available materials through copolymerization, blending, or combining structures constituted by different materials. Scaffolds can be obtained from different processes that differ in characteristics, such as texture or porosity. Probably, electrospinning has the greater relevance, since the obtained nanofiber membranes have a great similarity with the extracellular matrix and, in addition, they can easily incorporate functional and bioactive compounds. Coaxial and emulsion electrospinning processes appear ideal to generate complex systems able to incorporate highly different agents. The present review is mainly focused on the recent works performed with Hap-loaded scaffolds having at least one structural layer composed of core/shell nanofibers.
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Affiliation(s)
- Amirmajid Kadkhodaie Elyaderani
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
| | - María del Carmen De Lama-Odría
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
| | - Luis J. del Valle
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
- Correspondence: (L.J.d.V.); (J.P.)
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri i Reixac 11-15, 08028 Barcelona, Spain
- Correspondence: (L.J.d.V.); (J.P.)
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9
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Electrochemical and electrophoretic coatings of medical implants by nanomaterials. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05235-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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10
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Qiu Y, Gao Y, Liu Y, Li Z, Wei Q, Xu W, Wang Y. Near-infrared electrospun fiber with bimetallic coating for antibacterial and bone regeneration. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Shuai C, Yu L, Feng P, Peng S, Pan H, Bai X. Construction of a stereocomplex between poly(D-lactide) grafted hydroxyapatite and poly(L-lactide): toward a bioactive composite scaffold with enhanced interfacial bonding. J Mater Chem B 2021; 10:214-223. [PMID: 34927656 DOI: 10.1039/d1tb02111g] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The poly(L-lactide) (PLLA)/hydroxyapatite (HAP) composite scaffold is expected to combine the favorable compatibility and processability of PLLA with the excellent bioactivity and osteoconductivity of HAP. Unfortunately, the poor interfacial bonding between PLLA and HAP leads to a deterioration in mechanical properties. In this study, poly(D-lactide) (PDLA) was grafted onto the surface of HAP nanoparticles (g-HAP), and then g-HAP was incorporated into PLLA to improve interfacial bonding by stereocomplexation in a scaffold fabricated via selective laser sintering (SLS). The results showed that HAP nanoparticles were grafted with PDLA at a grafting rate of 8.72% by ring-opening polymerization through chemical bonding in the presence of the hydroxyl groups of HAP. The grafted PDLA formed an interfacial stereocomplex with PLLA via an intertwined spiral structure ascribed to their antiparallel and complementary configuration under the action of hydrogen bonding. Consequently, the tensile strength and modulus of the PLLA/g-HAP scaffold increased by 86% and 69%, respectively, compared to those of the PLLA/HAP scaffold. In addition, the scaffold displayed good bioactivity by inducing apatite nucleation and deposition and possessed good cytocompatibility for cell adhesion, growth and proliferation.
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Affiliation(s)
- Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China. .,School of Energy and Machinery Engineering, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Li Yu
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
| | - Shuping Peng
- School of Energy and Machinery Engineering, Jiangxi University of Science and Technology, Nanchang 330013, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, School of Basic Medical Science, Central South University, Changsha, 410078, China
| | - Hao Pan
- Department of Periodontics & Oral Mucosal Section, Xiangya Stomatological Hospital, Central South University, Changsha 410013, China
| | - Xinna Bai
- Department of Conservative Dentistry & Endodontics, Xiangya Stomatological Hospital & Xiangya School of Stomatology Central South University, Changsha 410013, China
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12
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Saiding Q, Cui W. Functional nanoparticles in electrospun fibers for biomedical applications. NANO SELECT 2021. [DOI: 10.1002/nano.202100335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Qimanguli Saiding
- Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai P. R. China
| | - Wenguo Cui
- Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai P. R. China
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13
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Mosaad KE, Shoueir KR, Dewidar MM. Fabrication of Multifunctional Wound Dressing Composite Biomaterials Composed of Ag/Mg-Hydroxyapatite Doped Electrospun Poly (Vinyl Alcohol) Nanofibers for Skin Tissue Regeneration. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02195-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Nazir F, Iqbal M. Comparative Study of Crystallization, Mechanical Properties, and In Vitro Cytotoxicity of Nanocomposites at Low Filler Loadings of Hydroxyapatite for Bone-Tissue Engineering Based on Poly(l-lactic acid)/Cyclo Olefin Copolymer. Polymers (Basel) 2021; 13:3865. [PMID: 34833163 PMCID: PMC8619963 DOI: 10.3390/polym13223865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/28/2021] [Accepted: 11/01/2021] [Indexed: 12/23/2022] Open
Abstract
A poly(l-lactic acid)/nanohydroxyapatite (PLLA/nHA) scaffold works as a bioactive, osteoconductive scaffold for bone-tissue engineering, but its low degradation rate limits embedded HA in PLLA to efficiently interact with body fluids. In this work, nano-hydroxyapatite (nHA) was added in lower filler loadings (1, 5, 10, and 20 wt%) in a poly(l-lactic acid)/cyclo olefin copolymer10 wt% (PLLA/COC10) blend to obtain novel poly(l-lactic acid)/cyclo olefin copolymer/nanohydroxyapatite (PLLA/COC10-nHA) scaffolds for bone-tissue regeneration and repair. Furthermore, the structure-activity relationship of PLLA/COC10-nHA (ternary system) nanocomposites in comparison with PLLA/nHA (binary system) nanocomposites was systematically studied. Nanocomposites were evaluated for structural (morphology, crystallization), thermomechanical properties, antibacterial potential, and cytocompatibility for bone-tissue engineering applications. Scanning electron microscope images revealed that PLLA/COC10-nHA had uniform morphology and dispersion of nanoparticles up to 10% of HA, and the overall nHA dispersion in matrix was better in PLLA/COC10-nHA as compared to PLLA/nHA. Fourier transformation infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), and differential scanning calorimetry (DSC) studies confirmed miscibility and transformation of the α-crystal form of PLLA to the ά-crystal form by the addition of nHA in all nanocomposites. The degree of crystallinity (%) in the case of PLLA/COC10-nHA 10 wt% was 114% higher than pure PLLA/COC10 and 128% higher than pristine PLLA, indicating COC and nHA are acting as nucleating agents in the PLLA/COC10-nHA nanocomposites, causing an increase in the degree of crystallinity (%). Moreover, PLLA/COC10-nHA exhibited 140 to 240% (1-20 wt% HA) enhanced mechanical properties in terms of ductility as compared to PLLA/nHA. Antibacterial activity results showed that 10 wt% HA in PLLA/COC10-nHA showed substantial activity against P. aeruginosa, S. aureus, and L. monocytogenes. In vitro cytocompatibility of PLLA/COC10 and PLLA nanocomposites with nHA osteoprogenitor cells (MC3T3-E1) and bone mesenchymal stem cells (BMSC) was evaluated. Both cell lines showed two- to three-fold enhancement in cell viability and 10- to 30-fold in proliferation upon culture on PLLA/COC10-nHA as compared to PLLA/nHA composites. It was observed that the ternary system PLLA/COC10-nHA had good dispersion and interfacial interaction resulting in improved thermomechanical and enhanced osteoconductive properties as compared to PLLA/nHA.
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Affiliation(s)
| | - Mudassir Iqbal
- Department of Chemistry, School of Natural Sciences, National University of Science and Technology (NUST), Islamabad 44000, Pakistan;
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15
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Biocomposites Containing Silver Nanoparticles for Biomedical Applications. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02180-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Feeley A, Feeley I, Ni Fhoghlú C, Sheehan E, Kennedy M. Use of biomaterials in scaphoid fracture fixation, a systematic review. Clin Biomech (Bristol, Avon) 2021; 89:105480. [PMID: 34530377 DOI: 10.1016/j.clinbiomech.2021.105480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Scaphoid fractures account for 60-70% carpal injury. Due to limited vascular supply achieving adequate reduction and healing is important to avoid complications including avascular necrosis. Recent technological advances have led to renewed vigour in bioabsorbable material research to develop devices which could be used without the need for removal and complications including stress shielding and suboptimal imaging. METHODS A systematic search of databases including PubMed, Ovid Medline, and Google Scholar databases was made to identify studies related to the use of bioabsorbable materials in scaphoid fixation and postoperative patient outcomes. PRISMA guidelines were utilised for this review. FINDINGS Initial search results yielded 852 studies. 124 studies were screened, with 79 patients across 7 studies included in this review. Poly-L-Lactic acid derivatives were the most common biomaterial for scaphoid fixation, with magnesium and polyglycolide also used. Levels of evidence for studies ranged between III-IV. Analysis demonstrated mixed findings with generally comparable outcomes to conventional alloy-based screws. INTERPRETATION Development in bioabsorbable materials is ongoing, however there remains a dearth in data regarding their use in the scaphoid. Further research is needed to establish the efficacy and applicability of bioabsorbable devices in the scaphoid bone.
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Affiliation(s)
- Aoife Feeley
- Department of Orthopaedics, Midlands Regional Hospital Tullamore, Ireland; School of Medicine, University College Dublin, Ireland.
| | - Iain Feeley
- Department of Orthopaedics, National Orthopaedic Hospital Cappagh, Ireland
| | | | - Eoin Sheehan
- Department of Orthopaedics, Midlands Regional Hospital Tullamore, Ireland
| | - Muiris Kennedy
- Department of Orthopaedics, Midlands Regional Hospital Tullamore, Ireland
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17
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Potential wound dressings from electrospun medicated poly(butylene-adipate-co-terephthalate)/poly-(ε-caprolactone) microfibers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116694] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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18
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Zhang Y, Gulati K, Li Z, Di P, Liu Y. Dental Implant Nano-Engineering: Advances, Limitations and Future Directions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2489. [PMID: 34684930 PMCID: PMC8538755 DOI: 10.3390/nano11102489] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/08/2021] [Accepted: 09/18/2021] [Indexed: 12/27/2022]
Abstract
Titanium (Ti) and its alloys offer favorable biocompatibility, mechanical properties and corrosion resistance, which makes them an ideal material choice for dental implants. However, the long-term success of Ti-based dental implants may be challenged due to implant-related infections and inadequate osseointegration. With the development of nanotechnology, nanoscale modifications and the application of nanomaterials have become key areas of focus for research on dental implants. Surface modifications and the use of various coatings, as well as the development of the controlled release of antibiotics or proteins, have improved the osseointegration and soft-tissue integration of dental implants, as well as their antibacterial and immunomodulatory functions. This review introduces recent nano-engineering technologies and materials used in topographical modifications and surface coatings of Ti-based dental implants. These advances are discussed and detailed, including an evaluation of the evidence of their biocompatibility, toxicity, antimicrobial activities and in-vivo performances. The comparison between these attempts at nano-engineering reveals that there are still research gaps that must be addressed towards their clinical translation. For instance, customized three-dimensional printing technology and stimuli-responsive, multi-functional and time-programmable implant surfaces holds great promise to advance this field. Furthermore, long-term in vivo studies under physiological conditions are required to ensure the clinical application of nanomaterial-modified dental implants.
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Affiliation(s)
- Yifan Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China;
| | - Karan Gulati
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia;
| | - Ze Li
- School of Stomatology, Chongqing Medical University, Chongqing 400016, China;
| | - Ping Di
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia;
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Sharma D, Satapathy BK. Polymer Substrate-Based Transition Metal Modified Electrospun Nanofibrous Materials: Current Trends in Functional Applications and Challenges. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1972006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K. Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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Ruffini A, Sandri M, Dapporto M, Campodoni E, Tampieri A, Sprio S. Nature-Inspired Unconventional Approaches to Develop 3D Bioceramic Scaffolds with Enhanced Regenerative Ability. Biomedicines 2021; 9:916. [PMID: 34440120 PMCID: PMC8389705 DOI: 10.3390/biomedicines9080916] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Material science is a relevant discipline in support of regenerative medicine. Indeed, tissue regeneration requires the use of scaffolds able to guide and sustain the natural cell metabolism towards tissue regrowth. This need is particularly important in musculoskeletal regeneration, such as in the case of diseased bone or osteocartilaginous regions for which calcium phosphate-based scaffolds are considered as the golden solution. However, various technological barriers related to conventional ceramic processing have thus far hampered the achievement of biomimetic and bioactive scaffolds as effective solutions for still unmet clinical needs in orthopaedics. Driven by such highly impacting socioeconomic needs, new nature-inspired approaches promise to make a technological leap forward in the development of advanced biomaterials. The present review illustrates ion-doped apatites as biomimetic materials whose bioactivity resides in their unstable chemical composition and nanocrystallinity, both of which are, however, destroyed by the classical sintering treatment. In the following, recent nature-inspired methods preventing the use of high-temperature treatments, based on (i) chemically hardening bioceramics, (ii) biomineralisation process, and (iii) biomorphic transformations, are illustrated. These methods can generate products with advanced biofunctional properties, particularly biomorphic transformations represent an emerging approach that could pave the way to a technological leap forward in medicine and also in various other application fields.
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Affiliation(s)
| | | | | | | | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, 48018 Faenza, Italy; (A.R.); (M.S.); (M.D.); (E.C.)
| | - Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council, 48018 Faenza, Italy; (A.R.); (M.S.); (M.D.); (E.C.)
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21
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Donya H, Darwesh R, Ahmed MK. Morphological features and mechanical properties of nanofibers scaffolds of polylactic acid modified with hydroxyapatite/CdSe for wound healing applications. Int J Biol Macromol 2021; 186:897-908. [PMID: 34273344 DOI: 10.1016/j.ijbiomac.2021.07.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/07/2021] [Accepted: 07/11/2021] [Indexed: 02/07/2023]
Abstract
Ternary nanocomposites, including graphene oxide (GO), hydroxyapatite (HAP), and cadmium selenite (CdSe) have been encapsulated into nanofibrous scaffolds of polylactic acid. These compositions were indexed as HAP@PLA (C1), CdSe@PLA (C2), HAP/CdSe@PLA (C3), HAP/GO@PLA (C4), and HAP/CdSe/GO@PLA (C5). Structural confirmation is executed by XRD and XPS techniques, while FESEM performs morphological characteristics. CdSe and GO dopants cause a significant increase in nanofiber diameter, HAP/GO@PLA (C4), showing thin surface fibers with fiber diameter up to 3.1 μm, followed by HAP/CdSe/GO@PLA (C4) composite that belongs to filament size up to 2.1 μm. On the other hand, the mechanical properties reveal that the dual dopant composites HAP/CdSe@PLA (C3) and HAP/GO@PLA (C4) hit the maximum tensile fracture values with 1.49 ± 0.3 and 0.99 ± 0.2 MPa. Further, the ternary C5 composite represents the lowest contact angle of 86.1 ± 3.7°. The antibacterial activity increased from 32.4 ± 9.7 and 28.4 ± 6.5% to be 85.3 ± 4.6 and 88.1 ± 5.6% for C1 and C5, respectively, against both E. coli and S. aureus in dark conditions. Moreover, the antibacterial potency enhanced from 75.4 ± 7.6 to be 83.5 ± 6.5 from dark to light conditions against E. coli for the composition of PLA containing the binary composition of HAP/CdSe.
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Affiliation(s)
- Hossam Donya
- Physics Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Reem Darwesh
- Physics Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M K Ahmed
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed 12588, Egypt.
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22
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Song H, Zhang Y, Zhang Z, Xiong S, Ma X, Li Y. Hydroxyapatite/NELL-1 Nanoparticles Electrospun Fibers for Osteoinduction in Bone Tissue Engineering Application. Int J Nanomedicine 2021; 16:4321-4332. [PMID: 34211273 PMCID: PMC8241815 DOI: 10.2147/ijn.s309567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/28/2021] [Indexed: 12/27/2022] Open
Abstract
Background As commonly bone defect is a disease of jaw that can seriously affect implant restoration, the bioactive scaffold can be used as potential systems to provide effective repair for bone defect. Purpose A osteoinductive bone tissue engineering scaffold has been prepared in order to explore the effect of bioactive materials on bone tissue engineering. Methods In this study, NELL-1 nanoparticles (Chi/NNP) and nano hydroxyapatite were incorporated in composite scaffolds by electrospinning and characterized using TEM, SEM, contact angle, tensile tests and in vitro drug release. In vitro biological activities such as MC3T3-E1 cell attachment, proliferation and osteogenic activity were studied. Results With the addition of nHA and nanoparticles, the fiber diameter of PCL/BNPs group, PCL/NNPs group and PCL/nHA/NNPs group was significantly increased. Moreover, the hydrophilic hydroxyl group and amino group presented in nHA and nanoparticles had improved the hydrophilicity of the composite fibers. The composite electrospun containing Chi/NNPs can form a double protective barrier which can effectively prolong the release time of NELL-1 growth factor. In addition, the hydroxyapatite/NELL-1 nanoparticles electrospun fibers can promote attachment, proliferation, differentiation of MC3T3-E1 cells and good cytocompatibility, indicating better ability of inducing osteogenic differentiation. Conclusion A multi-functional PCL/nHA/NNPs composite fiber with long-term bioactivity and osteoinductivity was successfully prepared by electrospinning. This potential composite could be used as scaffolds in bone tissue engineering application after in vivo studies.
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Affiliation(s)
- Hualei Song
- Department of Laboratory, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Yuntao Zhang
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Zihan Zhang
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Shijiang Xiong
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People's Republic of China
| | - Xiangrui Ma
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Yourui Li
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
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Luraghi A, Peri F, Moroni L. Electrospinning for drug delivery applications: A review. J Control Release 2021; 334:463-484. [PMID: 33781809 DOI: 10.1016/j.jconrel.2021.03.033] [Citation(s) in RCA: 227] [Impact Index Per Article: 75.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022]
Abstract
Drug delivery devices are promising tools in the pharmaceutical field, as they are able to maximize the therapeutic effects of the delivered drug while minimizing the undesired side effects. In the past years, electrospun nanofibers attracted rising attention due to their unique features, like biocompatibility and broad flexibility. Incorporation of active principles in nanofibrous meshes proved to be an efficient method for in situ delivery of a wide range of drugs, expanding the possibility and applicability of those devices. In this review, the principle of electrospinning and different fields of applications are treated to give an overview of the recent literature, underlining the easy tuning and endless combination of this technique, that in the future could be the new frontier of personalized medicine.
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Affiliation(s)
- Andrea Luraghi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milan, Italy
| | - Francesco Peri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126 Milan, Italy
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ET Maastricht, the Netherlands.
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Banitaba SN, Ehrmann A. Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review. Polymers (Basel) 2021; 13:1741. [PMID: 34073391 PMCID: PMC8197972 DOI: 10.3390/polym13111741] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 02/06/2023] Open
Abstract
Electrochemical devices convert chemical reactions into electrical energy or, vice versa, electricity into a chemical reaction. While batteries, fuel cells, supercapacitors, solar cells, and sensors belong to the galvanic cells based on the first reaction, electrolytic cells are based on the reversed process and used to decompose chemical compounds by electrolysis. Especially fuel cells, using an electrochemical reaction of hydrogen with an oxidizing agent to produce electricity, and electrolytic cells, e.g., used to split water into hydrogen and oxygen, are of high interest in the ongoing search for production and storage of renewable energies. This review sheds light on recent developments in the area of electrospun electrochemical devices, new materials, techniques, and applications. Starting with a brief introduction into electrospinning, recent research dealing with electrolytic cells, batteries, fuel cells, supercapacitors, electrochemical solar cells, and electrochemical sensors is presented. The paper concentrates on the advantages of electrospun nanofiber mats for these applications which are mostly based on their high specific surface area and the possibility to tailor morphology and material properties during the spinning and post-treatment processes. It is shown that several research areas dealing with electrospun parts of electrochemical devices have already reached a broad state-of-the-art, while other research areas have large space for future investigations.
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Affiliation(s)
| | - Andrea Ehrmann
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
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Hu X, Mei S, Wang F, Tang S, Xie D, Ding C, Du W, Zhao J, Yang L, Wu Z, Wei J. A microporous surface containing Si 3N 4/Ta microparticles of PEKK exhibits both antibacterial and osteogenic activity for inducing cellular response and improving osseointegration. Bioact Mater 2021; 6:3136-3149. [PMID: 33778194 PMCID: PMC7960946 DOI: 10.1016/j.bioactmat.2021.02.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/31/2021] [Accepted: 02/17/2021] [Indexed: 01/06/2023] Open
Abstract
As an implantable biomaterial, polyetherketoneketone (PEKK) exhibits good mechanical strength but it is biologically inert while tantalum (Ta) possesses outstanding osteogenic bioactivity but has a high density and elastic modulus. Also, silicon nitride (SN) has osteogenic and antibacterial activity. In this study, a microporous surface containing both SN and Ta microparticles on PEKK (STP) exhibiting excellent osteogenic and antibacterial activity was created by sulfonation. Compared with sulfonated PEKK (SPK) without microparticles, the surface properties (roughness, surface energy, hydrophilicity and protein adsorption) of STP significantly increased due to the SN and Ta particles presence on the microporous surface. In addition, STP also exhibited outstanding antibacterial activity, which inhibited bacterial growth in vitro and prevented bacterial infection in vivo because of the presence of SN particles. Moreover, the microporous surface of STP containing both SN and Ta particles remarkably induced response (e.g., proliferation and differentiation) of rat bone mesenchymal stem (rBMS) cells in vitro. Furthermore, STP significantly improved new bone regeneration and osseointegration in vivo. Regarding the induction of cellular response in vitro and improvement of osseointegration in vivo, the microporous surface containing Ta was better than the surface with SN particles. In conclusion, STP with optimized surface properties activated cellular responses in vitro, enhanced osseointegration and prevented infection in vivo. Therefore, STP possessed the dual biofunctions of excellent osteogenic and antibacterial activity, showing great potential as a bone substitute. •Microporous surface containing SN/Ta microparticles on PEKK (STP) was created. •Surface performances (e.g., roughness) of STP were significantly increased. •STP exhibited antibacterial activity in vitro and prevented infection in vivo. •STP remarkably induced response of bone mesenchymal stem cells in vitro. •STP obviously improved bone regeneration and osseointegration in vivo.
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Affiliation(s)
- Xinglong Hu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Shiqi Mei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Fan Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Dong Xie
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Chao Ding
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Wenli Du
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Jun Zhao
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Department of Orthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, 200011, China
| | - Lili Yang
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Zhaoying Wu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
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Bi F, Chen Y, Liu J, Wang Y, Xu D, Tian K. Anterior cruciate ligament reconstruction in a rabbit model using a silk-collagen scaffold modified by hydroxyapatite at both ends: a histological and biomechanical study. J Orthop Surg Res 2021; 16:139. [PMID: 33593365 PMCID: PMC7885370 DOI: 10.1186/s13018-021-02281-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/04/2021] [Indexed: 12/13/2022] Open
Abstract
Background To investigate osteointegration at the graft-bone interface and the prevention of osteoarthritis after anterior cruciate ligament (ACL) reconstruction using a silk-collagen scaffold with both ends modified by hydroxyapatite (HA) in a rabbit model. Methods The HA/silk-collagen scaffold was fabricated using a degummed, knitted silk scaffold, collagen I matrix, and simulated body fluid (SBF). The HA/silk-collagen scaffold was rolled up to make a graft for replacing the native ACL in the experimental group (HA group), and the silk-collagen scaffold was used in the control (S group). All specimens were harvested at 16 weeks postoperatively to evaluate graft-bone healing and osteoarthritis prevention. Results Histological staining revealed the massive formation of more mature bone at the tendon-bone interface, and immunohistochemistry staining revealed more collagen I and osteocalcin deposition in the HA group than in the S group. Higher signals indicating more bone mineral formation were detected in the HA group than in the S group, which was consistent with the results of biomechanical testing. Better osteoarthritis prevention was also observed in the HA group, indicating a more stable knee joint in the HA group than in the S group. Conclusion The HA/silk-collagen scaffold promotes osteointegration at the tendon-bone interface after ACL reconstruction and has great potential for clinical applications. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-021-02281-0.
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Affiliation(s)
- Fanggang Bi
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, NO.1 Jianshe East Road, Zhengzhou, 450001, China.
| | - Yangdi Chen
- Henan University of Chinese Medicine, NO.156 Jinshui East Road, Zhengzhou, 450001, China
| | - Junqi Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, NO.1 Jianshe East Road, Zhengzhou, 450001, China
| | - Yafei Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, NO.1 Jianshe East Road, Zhengzhou, 450001, China
| | - Danfeng Xu
- Department of Orthopedic Surgery, Shaoxing Central Hospital, NO.1 Huayu Road, Shaoxing, 312000, China
| | - Ke Tian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, NO.1 Jianshe East Road, Zhengzhou, 450001, China
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Mosselhy DA, Assad M, Sironen T, Elbahri M. Nanotheranostics: A Possible Solution for Drug-Resistant Staphylococcus aureus and their Biofilms? NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E82. [PMID: 33401760 PMCID: PMC7824312 DOI: 10.3390/nano11010082] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022]
Abstract
Staphylococcus aureus is a notorious pathogen that colonizes implants (orthopedic and breast implants) and wounds with a vicious resistance to antibiotic therapy. Methicillin-resistant S. aureus (MRSA) is a catastrophe mainly restricted to hospitals and emerged to community reservoirs, acquiring resistance and forming biofilms. Treating biofilms is problematic except via implant removal or wound debridement. Nanoparticles (NPs) and nanofibers could combat superbugs and biofilms and rapidly diagnose MRSA. Nanotheranostics combine diagnostics and therapeutics into a single agent. This comprehensive review is interpretative, utilizing mainly recent literature (since 2016) besides the older remarkable studies sourced via Google Scholar and PubMed. We unravel the molecular S. aureus resistance and complex biofilm. The diagnostic properties and detailed antibacterial and antibiofilm NP mechanisms are elucidated in exciting stories. We highlight the challenges of bacterial infections nanotheranostics. Finally, we discuss the literature and provide "three action appraisals". (i) The first appraisal consists of preventive actions (two wings), avoiding unnecessary hospital visits, hand hygiene, and legislations against over-the-counter antibiotics as the general preventive wing. Our second recommended preventive wing includes preventing the adverse side effects of the NPs from resistance and toxicity by establishing standard testing procedures. These standard procedures should provide breakpoints of bacteria's susceptibility to NPs and a thorough toxicological examination of every single batch of synthesized NPs. (ii) The second appraisal includes theranostic actions, using nanotheranostics to diagnose and treat MRSA, such as what we call "multifunctional theranostic nanofibers. (iii) The third action appraisal consists of collaborative actions.
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Affiliation(s)
- Dina A. Mosselhy
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
- Microbiological Unit, Fish Diseases Department, Animal Health Research Institute, Dokki, Giza 12618, Egypt
- Department of Virology, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014 Helsinki, Finland;
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
| | - Mhd Assad
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
| | - Tarja Sironen
- Department of Virology, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014 Helsinki, Finland;
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland;
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany
- Center for Nanotechnology, Zewail City of Science and Technology, Sheikh Zayed District, Giza 12588, Egypt
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Gherasim O, Puiu RA, Bîrcă AC, Burdușel AC, Grumezescu AM. An Updated Review on Silver Nanoparticles in Biomedicine. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2318. [PMID: 33238486 PMCID: PMC7700255 DOI: 10.3390/nano10112318] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022]
Abstract
Silver nanoparticles (AgNPs) represent one of the most explored categories of nanomaterials for new and improved biomaterials and biotechnologies, with impressive use in the pharmaceutical and cosmetic industry, anti-infective therapy and wound care, food and the textile industry. Their extensive and versatile applicability relies on the genuine and easy-tunable properties of nanosilver, including remarkable physicochemical behavior, exceptional antimicrobial efficiency, anti-inflammatory action and antitumor activity. Besides commercially available and clinically safe AgNPs-based products, a substantial number of recent studies assessed the applicability of nanosilver as therapeutic agents in augmented and alternative strategies for cancer therapy, sensing and diagnosis platforms, restorative and regenerative biomaterials. Given the beneficial interactions of AgNPs with living structures and their nontoxic effects on healthy human cells, they represent an accurate candidate for various biomedical products. In the present review, the most important and recent applications of AgNPs in biomedical products and biomedicine are considered.
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Affiliation(s)
- Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Rebecca Alexandra Puiu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandra Cătălina Bîrcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandra-Cristina Burdușel
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (O.G.); (R.A.P.); (A.C.B.); (A.-C.B.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 90-92 Panduri Road, 050657 Bucharest, Romania
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Liu F, Cheng X, Xiao L, Wang Q, Yan K, Su Z, Wang L, Ma C, Wang Y. Inside-outside Ag nanoparticles-loaded polylactic acid electrospun fiber for long-term antibacterial and bone regeneration. Int J Biol Macromol 2020; 167:1338-1348. [PMID: 33232699 DOI: 10.1016/j.ijbiomac.2020.11.088] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022]
Abstract
Bone infections caused by bacteria during bone graft implantations can impair the ability of bone tissue repair, which is currently a clinical problem. In this study, the electrospinning technique was used to prepare a polylactic acid (PLLA)/silver (Ag) composite fiber, in which the silver nanoparticles (Ag-NPs) were uniformly distributed on the inner surface of PLLA fibers; dopamine (DA) was self-polymerized on the composite fiber surface to construct the adhesive polydopamine (PDA) film and chitosan (CS) was used to regulate Ag+ in situ through pulse electrochemical deposition for the construction of a stable Ag-NPs coating (CS/Ag), achieving the steady and slow release of Ag-NPs, therefore accomplishing the construction of a "inside-outside" Ag-NPs-loaded PLLA/Ag@PDA@CS/Ag composite fiber with dual functions of long-lasting antibacterial effect as well as bone regeneration promotion ability. The study results showed that the composite fiber has an excellent antibacterial effect against E. coli and S. aureus, and good osteoinductive and angiogenic properties. In summary, under the dual regulations of the strong adhesion of PDA and CS chelation, the "inside-outside" Ag-NPs-loaded composite fiber was endowed with good physiological stability, long-term antibacterial effect and bone infection inhibition ability, making it a promising bone implant material.
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Affiliation(s)
- Feifei Liu
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Xuewei Cheng
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Lu Xiao
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Qiang Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, PR China
| | - Kun Yan
- Traumatic Orthopedics, The 6th affiliated hospital of Xinjiang Medical University, 39 Wuxin Road, Urumqi 830001, PR China
| | - Zhi Su
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Lei Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Wuhu 241001, Anhui, PR China.
| | - Chuang Ma
- Department of Orthopedics Center, the First Affiliated Hospital of Xinjiang Medical University, 393 Xinyi Road, Urumqi 830054, PR China.
| | - Yingbo Wang
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China.
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Qiao GY, Li SM, Niu YY. One new copper iodide coordination polymer directed by 4-pyridyl dithioether ligand: Syntheses, structures, and photocatalysis. MAIN GROUP CHEMISTRY 2020. [DOI: 10.3233/mgc-190900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
One new compound consisting of 1,1-bis(4-pyridylthio)methylene ([Bpytm]) ligand, namely [Bpytm]CuI (1), has been prepared and characterized by IR spectroscopy, solid Uv-visible diffuse reflectance spectrum, and X-ray Powder Diffraction (PXRD). Compound 1 is a 2D MOF and ligand [Bpytm] coordinate with metal ions to form tetrahedral configuration. For compound 1: Crystal system: Monoclinic, Space group: C2/c, a = 13.6671(11), b = 11.6075(11), c = 17.1225(12), α= 90°, β= 93.707(3)°, γ= 90°, V = 2710.6(4) Å3, Z = 8, Dcalc = 2.082 g cm–3. The photocatalytic properties and thermal stability have been researched.
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Affiliation(s)
- Gui-Ying Qiao
- College of Chemistry, Zhengzhou University, Henan, P. R. China
| | - Su-Min Li
- College of Chemistry, Zhengzhou University, Henan, P. R. China
| | - Yun-Yin Niu
- College of Chemistry, Zhengzhou University, Henan, P. R. China
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Paterson TE, Shi R, Tian J, Harrison CJ, De Sousa Mendes M, Hatton PV, Li Z, Ortega I. Electrospun Scaffolds Containing Silver-Doped Hydroxyapatite with Antimicrobial Properties for Applications in Orthopedic and Dental Bone Surgery. J Funct Biomater 2020; 11:jfb11030058. [PMID: 32824017 PMCID: PMC7563183 DOI: 10.3390/jfb11030058] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/09/2020] [Accepted: 07/28/2020] [Indexed: 12/25/2022] Open
Abstract
Preventing the development of osteomyelitis while enhancing bone regeneration is challenging, with relatively little progress to date in translating promising technologies to the clinic. Nanoscale hydroxyapatite (nHA) has been employed as a bone graft substitute, and recent work has shown that it may be modified with silver to introduce antimicrobial activity against known pathogens. The aim of this study was to incorporate silver-doped nHA into electrospun scaffolds for applications in bone repair. Silver-doped nHA was produced using a modified, rapid mixing, wet precipitation method at 2, 5, 10 mol.% silver. The silver-doped nHA was added at 20 wt.% to a polycaprolactone solution for electrospinning. Bacteria studies demonstrated reduced bacterial presence, with Escherichia coli and Staphylococcus aureus undetectable after 96 h of exposure. Mesenchymal stem cells (MSCs) were used to study both toxicity and osteogenicity of the scaffolds using PrestoBlue® and alkaline phosphatase (ALP) assays. Innovative silver nHA scaffolds significantly reduced E. coli and S. aureus bacterial populations while maintaining cytocompatibility with mammalian cells and enhancing the differentiation of MSCs into osteoblasts. It was concluded that silver-doped nHA containing scaffolds have the potential to act as an antimicrobial device while supporting bone tissue healing for applications in orthopedic and dental bone surgery.
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Affiliation(s)
- Thomas E. Paterson
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
| | - Rui Shi
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing 100083, China;
| | - Jingjing Tian
- Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China;
- Central Laboratory, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Caroline J. Harrison
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
| | | | - Paul V. Hatton
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
- Correspondence: (P.V.H.); (Z.L.)
| | - Zhou Li
- Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China;
- Correspondence: (P.V.H.); (Z.L.)
| | - Ilida Ortega
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
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Electrospun Fibre Webs Templated Synthesis of Mineral Scaffolds Based on Calcium Phosphates and Barium Titanate. NANOMATERIALS 2020; 10:nano10040772. [PMID: 32316366 PMCID: PMC7221861 DOI: 10.3390/nano10040772] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
The current work focuses on the development of mineral scaffolds with complex composition and controlled morphology by using a polymeric template in the form of nonwoven fibre webs fabricated through electrospinning. By a cross-linking process, gelatine fibres stable in aqueous solutions were achieved, these being further subjected to a loading step with two types of mineral phases: calcium phosphates deposited by chemical reaction and barium titanate nanoparticles as decoration on the previously achieved structures. Thus, hybrid materials were obtained and subsequently processed in terms of freeze-drying and heat treating with the purpose of burning the template and consolidating the mineral part as potential bone implants with improved biological response by external stimulation. The results confirmed the tunable morphology, as well as the considerable applicability of both as-prepared and final samples for the development of medical devices, which encourages the continuation of research in the direction of assessing the synergistic contribution of barium titanate domains polarisation/magnetisation by external applied fields.
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Blend biopolymeric nanofibrous scaffolds of cellulose acetate/ε-polycaprolactone containing metallic nanoparticles prepared by laser ablation for wound disinfection applications. Int J Biol Macromol 2020; 155:636-644. [PMID: 32251752 DOI: 10.1016/j.ijbiomac.2020.03.257] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 12/20/2022]
Abstract
Laser ablation technique was utilized to synthesize versatile metallic nanoparticles including ZnO, Ag and CuO which were incorporated into the blend matrix of cellulose Acetate (CA) and ε-polycaprolactone (PCL) nanofibrous scaffold. The compositional, microstructural and morphological behaviors for the obtained nanofibers were investigated using X-ray diffraction (XRD), Fourier Transformed Infrared, Transmission Electron Microscope (TEM) and Field Emission-Scanning Electron Microscope (FESEM). The cell viability and antibacterial activity were investigated against Staphylococcus aureus (S. aureus) and Escherichia coli (E-coli). TEM micrographs refer that while CuONPs were involved in the middle of CA/PCL fibrous scaffold with diameters around 160 nm. The morphological investigations indicated the scaffolds were configured in a non-oriented form with diameters 0.45-0.9 μm in the case of ZnONPs involved in blend matrix fibers. The ratio of viable cells displays that compositions are biocompatible, while the antibacterial activity of both AgNPs and CuONPs showed an inhibition zone around 11.2.3 ± 2.2 mm and 9.4 ± 1.2 mm respectively. Bio-blend polymers matrices carrying nanoparticles could be tailored for a plethora of biomedical applications upon their compositions.
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Pandele AM, Constantinescu A, Radu IC, Miculescu F, Ioan Voicu S, Ciocan LT. Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E274. [PMID: 31936228 PMCID: PMC7014116 DOI: 10.3390/ma13020274] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 01/30/2023]
Abstract
This article presents a facile synthesis method used to obtain new composite films based on polylactic acid and micro-structured hydroxyapatite particles. The composite films were synthesized starting from a polymeric solution in chloroform (12 wt.%) in which various concentrations of hydroxyapatite (1, 2, and 4 wt.% related to polymer) were homogenously dispersed using ultrasonication followed by solvent evaporation. The synthesized composite films were morphologically (through SEM and atomic force microscopy (AFM)) and structurally (through FT-IR and Raman spectroscopy) characterized. The thermal behavior of the composite films was also determined. The SEM and AFM analyses showed the presence of micro-structured hydroxyapatite particles in the film's structure, as well as changes in the surface morphology. There was a significant decrease in the crystallinity of the composite films compared to the pure polymer, this being explained by a decrease in the arrangement of the polymer chains and a concurrent increase in the degree of their clutter. The presence of hydroxyapatite crystals did not have a significant influence on the degradation temperature of the composite film.
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Affiliation(s)
- Andreea Madalina Pandele
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Andreea Constantinescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Ionut Cristian Radu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
| | - Florin Miculescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Stefan Ioan Voicu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Lucian Toma Ciocan
- “Carol Davila” University of Medicine and Pharmacy, Prosthetics Technology and Dental Materials Department, 37, Dionisie Lupu Street, District 1, 020022 Bucharest, Romania;
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