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Li C, Zhu A, Yang L, Wang X, Guo Z. Advances in magnetoelectric composites for promoting bone regeneration: a review. J Mater Chem B 2024; 12:4361-4374. [PMID: 38639047 DOI: 10.1039/d3tb02617e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Repair of large bone defects is one of the clinical problems that have not yet been fully solved. The dynamic balance of bone tissue is regulated by many biological, chemical and physical environmental factors. Simulating the microenvironment of bone tissue in the physiological state through biomimetic materials is an important development direction of tissue engineering in recent years. With the deepening of research, it has been found that when bone tissue is damaged, its surrounding magnetoelectric microenvironment is subsequently destroyed, and providing a magnetoelectric microenvironment in the biomimetic state will be beneficial to promote bone repair. This review describes the piezoelectric effect of natural bone tissue with magnetoelectric stimulation for bone regeneration, provides a detailed account of the historical development of magnetoelectric composites and the current magnetoelectric composites that are most commonly utilized in the field of tissue engineering. Besides, the hypothesized mechanistic pathways through which magnetoelectric composite materials promote bone regeneration are critically examined, including the enhancement of osteogenesis, promotion of cell adhesion and angiogenesis, modulation of bone immunity, and promotion of nerve regeneration.
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Affiliation(s)
- Chengyu Li
- Department of Periodontology and Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, P. R. China.
| | - Andi Zhu
- Department of Implantology and Prosthodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, P. R. China
| | - Liqing Yang
- Department of Periodontology and Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, P. R. China.
| | - Xinyi Wang
- Department of Periodontology and Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, P. R. China.
| | - Zehong Guo
- Department of Periodontology and Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, P. R. China.
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2
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Luo B, Wang S, Song X, Chen S, Qi Q, Chen W, Deng X, Ni Y, Chu C, Zhou G, Qin X, Lei D, You Z. An Encapsulation-Free and Hierarchical Porous Triboelectric Scaffold with Dynamic Hydrophilicity for Efficient Cartilage Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401009. [PMID: 38548296 DOI: 10.1002/adma.202401009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/13/2024] [Indexed: 04/26/2024]
Abstract
Tissue engineering and electrotherapy are two promising methods to promote tissue repair. However, their integration remains an underexplored area, because their requirements on devices are usually distinct. Triboelectric nanogenerators (TENGs) have shown great potential to develop self-powered devices. However, due to their susceptibility to moisture, TENGs have to be encapsulated in vivo. Therefore, existing TENGs cannot be employed as tissue engineering scaffolds, which require direct interaction with surrounding cells. Here, the concept of triboelectric scaffolds (TESs) is proposed. Poly(glycerol sebacate), a biodegradable and relatively hydrophobic elastomer, is selected as the matrix of TESs. Each hydrophobic micropore in multi-hierarchical porous TESs efficiently serves as a moisture-resistant working unit of TENGs. Integration of tons of micropores ensures the electrotherapy ability of TESs in vivo without encapsulation. Originally hydrophobic TESs are degraded by surface erosion and transformed into hydrophilic surfaces, facilitating their role as tissue engineering scaffolds. Notably, TESs seeded with chondrocytes obtain dense and large matured cartilages after subcutaneous implantation in nude mice. Importantly, rabbits with osteochondral defects receiving TES implantation show favorable hyaline cartilage regeneration and complete cartilage healing. This work provides a promising electronic biomedical device and will inspire a series of new in vivo applications.
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Affiliation(s)
- Bin Luo
- College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, P. R. China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Sinan Wang
- Department of Plastic and Reconstructive Surgery, Department of Cardiology, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Xingqi Song
- Department of Plastic and Reconstructive Surgery, Department of Cardiology, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Shuo Chen
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Qiaoyu Qi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Wenyi Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Xiaoyuan Deng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Yufeng Ni
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Chengzhen Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Department of Cardiology, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Xiaohong Qin
- College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, P. R. China
| | - Dong Lei
- Department of Plastic and Reconstructive Surgery, Department of Cardiology, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, P. R. China
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3
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Tavares C, Vieira T, Silva JC, Borges JPMR, Lança MC. Bioactive Hydroxyapatite Aerogels with Piezoelectric Particles. Biomimetics (Basel) 2024; 9:143. [PMID: 38534828 DOI: 10.3390/biomimetics9030143] [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: 11/21/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024] Open
Abstract
Open-cell foams based on hydroxyapatite (HAp) can mimic the extracellular matrix (ECM) to better replace damaged hard tissues and assist in their regeneration processes. Aerogels of HAp nanowires (NW) with barium titanate (BT) particles were produced and characterized regarding their physical and chemical properties, bioactivity, and in vitro cytotoxicity. Considering the role of piezoelectricity (mainly due to collagen) and surface charges in bone remodeling, all BT particles, of size 280 nm and 2 and 3 µm, contained BaTiO3 in their piezoelectric tetragonal phase. The synthesized nanowires were verified to be AB-type carbonated hydroxyapatite. The aerogels showed high porosity and relatively homogeneous distribution of the BT particles. Barium titanate proved to be non-cytotoxic while all the aerogels produced were cytotoxic for an extract concentration of 1 mg/mL but became non-cytotoxic at concentrations of 0.5 mg/mL and below. It is possible that these results were affected by the higher surface area and quicker dissolution rate of the aerogels. In the bioactivity assays, SEM/EDS, it was not easy to differentiate between the apatite deposition and the surface of the HAp wires. However, a quantitative EDS analysis shows a possible CaP deposition/dissolution cycle taking place.
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Affiliation(s)
- Catarina Tavares
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Tânia Vieira
- CENIMAT|i3N, Department of Physics, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Jorge C Silva
- CENIMAT|i3N, Department of Physics, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - João P M R Borges
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - M Carmo Lança
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
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4
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Gao Q, Liu J, Wang M, Liu X, Jiang Y, Su J. Biomaterials regulates BMSCs differentiation via mechanical microenvironment. BIOMATERIALS ADVANCES 2024; 157:213738. [PMID: 38154401 DOI: 10.1016/j.bioadv.2023.213738] [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: 10/08/2023] [Revised: 12/11/2023] [Accepted: 12/16/2023] [Indexed: 12/30/2023]
Abstract
Bone mesenchymal stem cells (BMSCs) are crucial for bone tissue regeneration, the mechanical microenvironment of hard tissues, including bone and teeth, significantly affects the osteogenic differentiation of BMSCs. Biomaterials may mimic the microenvironment of the extracellular matrix and provide mechanical signals to regulate BMSCs differentiation via inducing the secretion of various intracellular factors. Biomaterials direct the differentiation of BMSCs via mechanical signals, including tension, compression, shear, hydrostatic pressure, stiffness, elasticity, and viscoelasticity, which can be transmitted to cells through mechanical signalling pathways. Besides, biomaterials with piezoelectric effects regulate BMSCs differentiation via indirect mechanical signals, such as, electronic signals, which are transformed from mechanical stimuli by piezoelectric biomaterials. Mechanical stimulation facilitates achieving vectored stem cell fate regulation, while understanding the underlying mechanisms remains challenging. Herein, this review summarizes the intracellular factors, including translation factors, epigenetic modifications, and miRNA level, as well as the extracellular factor, including direct and indirect mechanical signals, which regulate the osteogenic differentiation of BMSCs. Besides, this review will also give a comprehensive summary about how mechanical stimuli regulate cellular behaviours, as well as how biomaterials promote the osteogenic differentiation of BMSCs via mechanical microenvironments. The cellular behaviours and activated signal pathways will give more implications for the design of biomaterials with superior properties for bone tissue engineering. Moreover, it will also provide inspiration for the construction of bone organoids which is a useful tool for mimicking in vivo bone tissue microenvironments.
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Affiliation(s)
- Qianmin Gao
- Institute of Translational Medicine, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; Organoid Research Centre, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; National Centre for Translational Medicine (Shanghai) SHU Branch, NO.333 Nanchen Road, Shanghai University, Shanghai 200444, PR China
| | - Jinlong Liu
- Institute of Translational Medicine, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; Organoid Research Centre, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; National Centre for Translational Medicine (Shanghai) SHU Branch, NO.333 Nanchen Road, Shanghai University, Shanghai 200444, PR China
| | - Mingkai Wang
- Institute of Translational Medicine, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; Organoid Research Centre, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; National Centre for Translational Medicine (Shanghai) SHU Branch, NO.333 Nanchen Road, Shanghai University, Shanghai 200444, PR China
| | - Xiangfei Liu
- Department of Orthopedics, Shanghai Zhongye Hospital, NO. 456 Chunlei Road, Shanghai 200941, PR China.
| | - Yingying Jiang
- Institute of Translational Medicine, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China.
| | - Jiacan Su
- Institute of Translational Medicine, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; Organoid Research Centre, Shanghai University, NO.333 Nanchen Road, Shanghai 200444, PR China; National Centre for Translational Medicine (Shanghai) SHU Branch, NO.333 Nanchen Road, Shanghai University, Shanghai 200444, PR China; Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, NO.1665 Kongjiang Road, Shanghai 200092, PR China.
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5
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Duta L, Grumezescu V. The Effect of Doping on the Electrical and Dielectric Properties of Hydroxyapatite for Medical Applications: From Powders to Thin Films. MATERIALS (BASEL, SWITZERLAND) 2024; 17:640. [PMID: 38591446 PMCID: PMC10856152 DOI: 10.3390/ma17030640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/20/2024] [Accepted: 01/25/2024] [Indexed: 04/10/2024]
Abstract
Recently, the favorable electrical properties of biomaterials have been acknowledged as crucial for various medical applications, including both bone healing and growth processes. This review will specifically concentrate on calcium phosphate (CaP)-based bioceramics, with a notable emphasis on hydroxyapatite (HA), among the diverse range of synthetic biomaterials. HA is currently the subject of extensive research in the medical field, particularly in dentistry and orthopedics. The existing literature encompasses numerous studies exploring the physical-chemical, mechanical, and biological properties of HA-based materials produced in various forms (i.e., powders, pellets, and/or thin films) using various physical and chemical vapor deposition techniques. In comparison, there is a relative scarcity of research on the electrical and dielectric properties of HA, which have been demonstrated to be essential for understanding dipole polarization and surface charge. It is noteworthy that these electrical and dielectric properties also offer valuable insights into the structure and functioning of biological tissues and cells. In this respect, electrical impedance studies on living tissues have been performed to assess the condition of cell membranes and estimate cell shape and size. The need to fill the gap and correlate the physical-chemical, mechanical, and biological characteristics with the electrical and dielectric properties could represent a step forward in providing new avenues for the development of the next-generation of high-performance HA-doped biomaterials for future top medical applications. Therefore, this review focuses on the electrical and dielectric properties of HA-based biomaterials, covering a range from powders and pellets to thin films, with a particular emphasis on the impact of the various dopants used. Therefore, it will be revealed that each dopant possesses unique properties capable of enhancing the overall characteristics of the produced structures. Considering that the electrical and dielectric properties of HA-based biomaterials have not been extensively explored thus far, the aim of this review is to compile and thoroughly discuss the latest research findings in the field, with special attention given to biomedical applications.
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Affiliation(s)
- Liviu Duta
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Valentina Grumezescu
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
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6
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Joo S, Gwon Y, Kim S, Park S, Kim J, Hong S. Piezoelectrically and Topographically Engineered Scaffolds for Accelerating Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1999-2011. [PMID: 38175621 PMCID: PMC10798259 DOI: 10.1021/acsami.3c12575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/27/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024]
Abstract
Bone regeneration remains a critical concern across diverse medical disciplines, because it is a complex process that requires a combinatorial approach involving the integration of mechanical, electrical, and biological stimuli to emulate the native cellular microenvironment. In this context, piezoelectric scaffolds have attracted considerable interest owing to their remarkable ability to generate electric fields in response to dynamic forces. Nonetheless, the application of such scaffolds in bone tissue engineering has been limited by the lack of a scaffold that can simultaneously provide both the intricate electromechanical environment and the biocompatibility of the native bone tissue. Here, we present a pioneering biomimetic scaffold that combines the unique properties of piezoelectric and topographical enhancement with the inherent osteogenic abilities of hydroxyapatite (HAp). Notably, the novelty of this work lies in the incorporation of HAp into polyvinylidene fluoride-co-trifluoro ethylene in a freestanding form, leveraging its natural osteogenic potential within a piezoelectric framework. Through comprehensive in vitro and in vivo investigations, we demonstrate the remarkable potential of these scaffolds to accelerate bone regeneration. Moreover, we demonstrate and propose three pivotal mechanisms─(i) electrical, (ii) topographical, and (iii) paracrine─that collectively contribute to the facilitated bone healing process. Our findings present a synergistically derived biomimetic scaffold design with wide-ranging prospects for bone regeneration as well as various regenerative medicine applications.
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Affiliation(s)
- Soyun Joo
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yonghyun Gwon
- Department
of Convergence Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
- Department
of Rural and Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
- Interdisciplinary
Program in IT-Bio Convergence System, Chonnam
National University, Gwangju 61186, Republic
of Korea
| | - Soyeon Kim
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Sunho Park
- Department
of Convergence Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
- Department
of Rural and Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
| | - Jangho Kim
- Department
of Convergence Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
- Department
of Rural and Biosystems Engineering, Chonnam
National University, Gwangju 61186, Republic
of Korea
- Interdisciplinary
Program in IT-Bio Convergence System, Chonnam
National University, Gwangju 61186, Republic
of Korea
| | - Seungbum Hong
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- KAIST
Institute for NanoCentury (KINC), KAIST, Daejeon 34141, Republic of Korea
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7
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Badali V, Checa S, Zehn MM, Marinkovic D, Mohammadkhah M. Computational design and evaluation of the mechanical and electrical behavior of a piezoelectric scaffold: a preclinical study. Front Bioeng Biotechnol 2024; 11:1261108. [PMID: 38274011 PMCID: PMC10808828 DOI: 10.3389/fbioe.2023.1261108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Piezoelectric scaffolds have been recently developed to explore their potential to enhance the bone regeneration process using the concept of piezoelectricity, which also inherently occurs in bone. In addition to providing mechanical support during bone healing, with a suitable design, they are supposed to produce electrical signals that ought to favor the cell responses. In this study, using finite element analysis (FEA), a piezoelectric scaffold was designed with the aim of providing favorable ranges of mechanical and electrical signals when implanted in a large bone defect in a large animal model, so that it could inform future pre-clinical studies. A parametric analysis was then performed to evaluate the effect of the scaffold design parameters with regard to the piezoelectric behavior of the scaffold. The designed scaffold consisted of a porous strut-like structure with piezoelectric patches covering its free surfaces within the scaffold pores. The results showed that titanium or PCL for the scaffold and barium titanate (BT) for the piezoelectric patches are a promising material combination to generate favorable ranges of voltage, as reported in experimental studies. Furthermore, the analysis of variance showed the thickness of the piezoelectric patches to be the most influential geometrical parameter on the generation of electrical signals in the scaffold. This study shows the potential of computer tools for the optimization of scaffold designs and suggests that patches of piezoelectric material, attached to the scaffold surfaces, can deliver favorable ranges of electrical stimuli to the cells that might promote bone regeneration.
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Affiliation(s)
- Vahid Badali
- Department of Structural Mechanics and Analysis, Technische Universität Berlin, Berlin, Germany
- Julius Wolff Institute, Berlin Institute of Health, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Sara Checa
- Department of Structural Mechanics and Analysis, Technische Universität Berlin, Berlin, Germany
- Julius Wolff Institute, Berlin Institute of Health, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Manfred M. Zehn
- Department of Structural Mechanics and Analysis, Technische Universität Berlin, Berlin, Germany
| | - Dragan Marinkovic
- Department of Structural Mechanics and Analysis, Technische Universität Berlin, Berlin, Germany
| | - Melika Mohammadkhah
- Department of Structural Mechanics and Analysis, Technische Universität Berlin, Berlin, Germany
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Rahman M, Mahady Dip T, Padhye R, Houshyar S. Review on electrically conductive smart nerve guide conduit for peripheral nerve regeneration. J Biomed Mater Res A 2023; 111:1916-1950. [PMID: 37555548 DOI: 10.1002/jbm.a.37595] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/29/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023]
Abstract
At present, peripheral nerve injuries (PNIs) are one of the leading causes of substantial impairment around the globe. Complete recovery of nerve function after an injury is challenging. Currently, autologous nerve grafts are being used as a treatment; however, this has several downsides, for example, donor site morbidity, shortage of donor sites, loss of sensation, inflammation, and neuroma development. The most promising alternative is the development of a nerve guide conduit (NGC) to direct the restoration and renewal of neuronal axons from the proximal to the distal end to facilitate nerve regeneration and maximize sensory and functional recovery. Alternatively, the response of nerve cells to electrical stimulation (ES) has a substantial regenerative effect. The incorporation of electrically conductive biomaterials in the fabrication of smart NGCs facilitates the function of ES throughout the active proliferation state. This article overviews the potency of the various categories of electroactive smart biomaterials, including conductive and piezoelectric nanomaterials, piezoelectric polymers, and organic conductive polymers that researchers have employed latterly to fabricate smart NGCs and their potentiality in future clinical application. It also summarizes a comprehensive analysis of the recent research and advancements in the application of ES in the field of NGC.
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Affiliation(s)
- Mustafijur Rahman
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Brunswick, Australia
- Department of Dyes and Chemical Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh
| | - Tanvir Mahady Dip
- Department of Materials, University of Manchester, Manchester, UK
- Department of Yarn Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh
| | - Rajiv Padhye
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Brunswick, Australia
| | - Shadi Houshyar
- School of Engineering, RMIT University, Melbourne, Victoria, Australia
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9
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Zhu T, Zhou H, Chen X, Zhu Y. Recent advances of responsive scaffolds in bone tissue engineering. Front Bioeng Biotechnol 2023; 11:1296881. [PMID: 38047283 PMCID: PMC10691504 DOI: 10.3389/fbioe.2023.1296881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/09/2023] [Indexed: 12/05/2023] Open
Abstract
The investigation of bone defect repair has been a significant focus in clinical research. The gradual progress and utilization of different scaffolds for bone repair have been facilitated by advancements in material science and tissue engineering. In recent times, the attainment of precise regulation and targeted drug release has emerged as a crucial concern in bone tissue engineering. As a result, we present a comprehensive review of recent developments in responsive scaffolds pertaining to the field of bone defect repair. The objective of this review is to provide a comprehensive summary and forecast of prospects, thereby contributing novel insights to the field of bone defect repair.
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Affiliation(s)
| | | | | | - Yuanjing Zhu
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, Hunan, China
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10
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Singh P, Dubey AK. Accelerated Osteogenic Response of Electrodynamically Stimulated Mg 1-xCa xSi 1-xZr xO 3 ( x = 0-0.4) Bioelectrets. ACS Biomater Sci Eng 2023; 9:6293-6308. [PMID: 37877692 DOI: 10.1021/acsbiomaterials.3c00955] [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: 10/26/2023]
Abstract
MgSiO3-based biodegradable ceramics demonstrated remarkable potential for treating small-scale bone defects and temporary bone replacement. In addition, the dissolution behavior of MgSiO3 bioceramics can be tuned by doping of Ca and Zr elements at Mg and Si sites, respectively. The present study reported the influence of formation of Ca- and Zr-codoped Mg1-xCaxSi1-xZrxO3 (x = 0, 0.1, 0.2, 0.3, and 0.4) bioelectrets and electrodynamic stimulation toward improving their osteogenic response. Mg1-xCaxSi1-xZrxO3 electrets were successfully synthesized by a solid-state route. A detailed X-ray photoelectron spectroscopy (XPS) analyses revealed that the electrets produced oxygen-deficient active sites. The formation of Mg1-xCaxSi1-xZrxO3 electrets significantly increased the surface hydrophilicity. Inductively coupled plasma (ICP) analyses were used to examine the leaching behavior of Ca/Zr-codoped MgSiO3 bioceramics. In vitro cell culture analyses indicated that the osteogenesis of MG-63 cells was remarkably enhanced on the electrodynamic field-treated Mg1-xCaxSi1-xZrxO3 bioelectrets as compared to hydroxyapatite (HA). Moreover, a better osteogenic response was observed for higher concentrations of Ca (0.3 and 0.4) and Zr (0.3 and 0.4) doping in the MgSiO3 bioelectrets. Further, the mechanism of enhanced cellular functionality was revealed by the measurement of intracellular Ca2+.
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Affiliation(s)
- Priya Singh
- Department of Ceramic Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, India
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11
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Wang Y, Zhu H, Xue Y, Yan P, Ouyang J. Microstructure Evolution with Rapid Thermal Annealing Time in (001)-Oriented Piezoelectric PZT Films Integrated on (111) Si. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2068. [PMID: 36903182 PMCID: PMC10003855 DOI: 10.3390/ma16052068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/20/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
In our recently published paper (Y.-Y. Wang et al., High performance LaNiO3-buffered, (001)-oriented PZT piezoelectric films integrated on (111) Si, Appl. Phys. Lett. 121, 182902, 2022), highly (001)-oriented PZT films with a large transverse piezoelectric coefficient e31,f prepared on (111) Si substrates were reported. This work is beneficial for the development of piezoelectric micro-electro-mechanical systems (Piezo-MEMS) because of (111) Si's isotropic mechanical properties and desirable etching characteristics. However, the underlying mechanism for the achievement of a high piezoelectric performance in these PZT films going through a rapid thermal annealing process has not been thoroughly analyzed. In this work, we present complete sets of data in microstructure (XRD, SEM and TEM) and electrical properties (ferroelectric, dielectric and piezoelectric) for these films with typical annealing times of 2, 5, 10 and 15 min. Through data analyses, we revealed competing effects in tuning the electrical properties of these PZT films, i.e., the removal of residual PbO and proliferation of nanopores with an increasing annealing time. The latter turned out to be the dominating factor for a deteriorated piezoelectric performance. Therefore, the PZT film with the shortest annealing time of 2 min showed the largest e31,f piezoelectric coefficient. Furthermore, the performance degradation occurred in the PZT film annealed for 10 min can be explained by a film morphology change, which involved not only the change in grain shape, but also the generation of a large amount of nanopores near its bottom interface.
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Affiliation(s)
- Yingying Wang
- Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hanfei Zhu
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yinxiu Xue
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Peng Yan
- Key Laboratory of High-efficiency and Clean Mechanical Manufacturing (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Jun Ouyang
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
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12
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Zheng Y, Zhao L, Li Y, Zhang X, Zhang W, Wang J, Liu L, An W, Jiao H, Ma C. Nanostructure Mediated Piezoelectric Effect of Tetragonal BaTiO 3 Coatings on Bone Mesenchymal Stem Cell Shape and Osteogenic Differentiation. Int J Mol Sci 2023; 24:ijms24044051. [PMID: 36835464 PMCID: PMC9961896 DOI: 10.3390/ijms24044051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/05/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
In recent years, porous titanium (Ti) scaffolds with BaTiO3 coatings have been designed to promote bone regeneration. However, the phase transitions of BaTiO3 have been understudied, and their coatings have yielded low effective piezoelectric coefficients (EPCs < 1 pm/V). In addition, piezoelectric nanomaterials bring many advantages in eliciting cell-specific responses. However, no study has attempted to design a nanostructured BaTiO3 coating with high EPCs. Herein, nanoparticulate tetragonal phase BaTiO3 coatings with cube-like nanoparticles but different effective piezoelectric coefficients were fabricated via anodization combining two hydrothermal processes. The effects of nanostructure-mediated piezoelectricity on the spreading, proliferation, and osteogenic differentiation of human jaw bone marrow mesenchymal stem cells (hJBMSCs) were explored. We found that the nanostructured tetragonal BaTiO3 coatings exhibited good biocompatibility and an EPC-dependent inhibitory effect on hJBMSC proliferation. The nanostructured tetragonal BaTiO3 coatings of relatively smaller EPCs (<10 pm/V) exhibited hJBMSC elongation and reorientation, broad lamellipodia extension, strong intercellular connection and osteogenic differentiation enhancement. Overall, the improved hJBMSC characteristics make the nanostructured tetragonal BaTiO3 coatings promising for application on implant surfaces to promote osseointegration.
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Affiliation(s)
- Yafei Zheng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Lingzhou Zhao
- Air Force Medical Center, The Fourth Military Medical University, 30 Fucheng Road, Beijing 100089, China
| | - Ying Li
- Air Force Medical Center, The Fourth Military Medical University, 30 Fucheng Road, Beijing 100089, China
| | - Xinyuan Zhang
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
| | - Wei Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Jing Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Lipeng Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Weikang An
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Hua Jiao
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
- Correspondence: (H.J.); (C.M.)
| | - Chufan Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
- Air Force Medical Center, The Fourth Military Medical University, 30 Fucheng Road, Beijing 100089, China
- Correspondence: (H.J.); (C.M.)
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13
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Sikder P, Nagaraju P, Naganaboyina HPS. 3D-Printed Piezoelectric Porous Bioactive Scaffolds and Clinical Ultrasonic Stimulation Can Help in Enhanced Bone Regeneration. Bioengineering (Basel) 2022; 9:679. [PMID: 36421081 PMCID: PMC9687159 DOI: 10.3390/bioengineering9110679] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/08/2022] [Accepted: 11/08/2022] [Indexed: 12/01/2023] Open
Abstract
This paper presents a comprehensive effort to develop and analyze first-of-its-kind design-specific and bioactive piezoelectric scaffolds for treating orthopedic defects. The study has three major highlights. First, this is one of the first studies that utilize extrusion-based 3D printing to develop design-specific macroporous piezoelectric scaffolds for treating bone defects. The scaffolds with controlled pore size and architecture were synthesized based on unique composite formulations containing polycaprolactone (PCL) and micron-sized barium titanate (BaTiO3) particles. Second, the bioactive PCL-BaTiO3 piezoelectric composite formulations were explicitly developed in the form of uniform diameter filaments, which served as feedstock material for the fused filament fabrication (FFF)-based 3D printing. A combined method comprising solvent casting and extrusion (melt-blending) was designed and deemed suitable to develop the high-quality PCL-BaTiO3 bioactive composite filaments for 3D printing. Third, clinical ultrasonic stimulation (US) was used to stimulate the piezoelectric effect, i.e., create stress on the PCL-BaTiO3 scaffolds to generate electrical fields. Subsequently, we analyzed the impact of scaffold-generated piezoelectric stimulation on MC3T3 pre-osteoblast behavior. Our results confirmed that FFF could form high-resolution, macroporous piezoelectric scaffolds, and the poled PCL-BaTiO3 composites resulted in the d33 coefficient in the range of 1.2-2.6 pC/N, which is proven suitable for osteogenesis. In vitro results revealed that the scaffolds with a mean pore size of 320 µm resulted in the highest pre-osteoblast growth kinetics. While 1 Hz US resulted in enhanced pre-osteoblast adhesion, proliferation, and spreading, 3 Hz US benefited osteoblast differentiation by upregulating important osteogenic markers. This study proves that 3D-printed bioactive piezoelectric scaffolds coupled with US are promising to expedite bone regeneration in orthopedic defects.
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Affiliation(s)
- Prabaha Sikder
- Department of Mechanical Engineering, Cleveland State University, Cleveland, OH 44115, USA
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Khare D, Majumdar S, Krishnamurthy S, Dubey AK. An in vivo toxicity assessment of piezoelectric sodium potassium niobate [Na xK 1-xNbO 3 (x = 0.2-0.8)] nanoparticulates towards bone tissue engineering approach. BIOMATERIALS ADVANCES 2022; 140:213080. [PMID: 35985067 DOI: 10.1016/j.bioadv.2022.213080] [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: 05/22/2022] [Revised: 07/26/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
One of the recent challenges in the design/development of prosthetic orthopedic implants is to address the concern of local/systemic toxicity of debris particles, released due to wear or degradation. Such debris particles often lead to inflammation at the implanted site or aseptic loosening of the prosthesis which results in failure of the implant during long run. Several in vitro studies demonstrated the potentiality of piezoelectric sodium potassium niobate [NaxK1-xNbO3 (x = 0.2, 0.5, 0.8), NKN] as an emerging next-generation polarizable orthopedic implant. In this perspective, we performed an in vivo study to examine the local and systemic toxicity of NKN nanoparticulates, as a first report. In the present study, male Wistar rats were intra-articularly injected to the knee joint with 100 μl of NKN nanoparticulates (25 mg/ml in normal saline). After 7 days of exposure, the histopathological analyses demonstrate the absence of any inflammation or dissemination of nanoparticulates in vital organs such as heart, liver, kidney and spleen. The anti-inflammatory cytokines (IL-4 and IL-10) profile analyses suggest the increased anti-inflammatory response in the treated rats as compared to non-injected (control) rats, preferably for the sodium and potassium rich NKN i.e., Na0.8K0.2NbO3 and Na0.2K0.8NbO3. The biochemical analyses revealed no pathological changes in the liver and kidney of particulate treated rats. The present study is the first proof to confirm the non-toxic nature of NKN nanoparticulates which provides a step forward towards the development of prosthetic orthopedic implants using biocompatible piezoelectric NKN ceramics.
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Affiliation(s)
- Deepak Khare
- Department of Ceramic Engineering, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Shreyasi Majumdar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Sairam Krishnamurthy
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU) Varanasi, 221005, India.
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15
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Khare D, Singh P, Dubey AK. Interplay of surface polarization charge, dynamic electrical stimulation and compositional modification towards accelerated osteogenic response of Na xK 1-xNbO 3 piezo-bioceramics. BIOMATERIALS ADVANCES 2022; 140:213042. [PMID: 35914328 DOI: 10.1016/j.bioadv.2022.213042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/10/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Bone remodeling processes involve endogenous bioelectrical signals such as piezoelectric charges. Moreover, external electrical stimulation helps in improving the healing capability of injured tissues by modulating the metabolic signaling pathways of cells. Towards this end, the present study reveals the influence of the combined action of electrostatic surface polarization charge and dynamic pulsed electrical stimulation alongwith compositional modification towards improving the osteogenic response of emerging piezo-bioceramics, sodium potassium niobate [NaxK1-xNbO3 (x = 0.2-0.8), NKN]. The dependence of crystal structure on compositions (x) was retrieved by Rietveld refinement and X-ray peak profile analyses. The surface charge, stored in the polarized (@ 25 kV at 500 °C) NaxK1-xNbO3 (x = 0.2, 0.5, 0.8) samples were measured to be 0.52, 0.50 and 0.47 μC/cm2, respectively, using thermally stimulated depolarized current (TSDC). X-ray photoelectron spectroscopy (XPS) survey scan spectra revealed that the polarization process does not alter the surface chemistry of NKN. Negatively charged surfaces are observed to accelerate early-stage adhesion of osteoblast-like cells which further results in enhanced spreading of adhered cells. Subsequently, the dynamic pulsed electrical stimulation of 1 V/cm with the pulse duration of 400 μs was applied, while the cells were being adhered on electrostatically charged surfaces. The quantitative and qualitative analyses revealed that the synergistic action of electrostatic surface polarization charge and dynamic pulsed electrical stimulation further accelerates cell proliferation and differentiation on negatively charged surfaces of Na and K-rich compositions of NKN. The mechanism of augmented cellular activity was analyzed using intracellular Ca2+ measurement.
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Affiliation(s)
- Deepak Khare
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, INDIA
| | - Priya Singh
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, INDIA
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi 221005, INDIA.
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16
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Paci C, Iberite F, Arrico L, Vannozzi L, Parlanti P, Gemmi M, Ricotti L. Piezoelectric nanocomposite bioink and ultrasound stimulation modulate early skeletal myogenesis. Biomater Sci 2022; 10:5265-5283. [PMID: 35913209 DOI: 10.1039/d1bm01853a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the significant progress in bioprinting for skeletal muscle tissue engineering, new stimuli-responsive bioinks to boost the myogenesis process are highly desirable. In this work, we developed a printable alginate/Pluronic-based bioink including piezoelectric barium titanate nanoparticles (nominal diameter: ∼60 nm) for the 3D bioprinting of muscle cell-laden hydrogels. The aim was to investigate the effects of the combination of piezoelectric nanoparticles with ultrasound stimulation on early myogenic differentiation of the printed structures. After the characterization of nanoparticles and bioinks, viability tests were carried out to investigate three nanoparticle concentrations (100, 250, and 500 μg mL-1) within the printed structures. An excellent cytocompatibility was confirmed for nanoparticle concentrations up to 250 μg mL-1. TEM imaging demonstrated the internalization of BTNPs in intracellular vesicles. The combination of piezoelectric nanoparticles and ultrasound stimulation upregulated the expression of MYOD1, MYOG, and MYH2 and enhanced cell aggregation, which is a crucial step for myoblast fusion, and the presence of MYOG in the nuclei. These results suggest that the direct piezoelectric effect induced by ultrasound on the internalized piezoelectric nanoparticles boosts myogenesis in its early phases.
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Affiliation(s)
- Claudia Paci
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Federica Iberite
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Lorenzo Arrico
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Lorenzo Vannozzi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Paola Parlanti
- Istituto Italiano di Tecnologia, Center for Materials Interfaces, Electron Crystallography, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Mauro Gemmi
- Istituto Italiano di Tecnologia, Center for Materials Interfaces, Electron Crystallography, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
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17
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Najjari A, Mehdinavaz Aghdam R, Ebrahimi SAS, Suresh K S, Krishnan S, Shanthi C, Ramalingam M. Smart piezoelectric biomaterials for tissue engineering and regenerative medicine: a review. BIOMED ENG-BIOMED TE 2022; 67:71-88. [PMID: 35313098 DOI: 10.1515/bmt-2021-0265] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 03/01/2022] [Indexed: 01/06/2023]
Abstract
Due to the presence of electric fields and piezoelectricity in various living tissues, piezoelectric materials have been incorporated into biomedical applications especially for tissue regeneration. The piezoelectric scaffolds can perfectly mimic the environment of natural tissues. The ability of scaffolds which have been made from piezoelectric materials in promoting cell proliferation and regeneration of damaged tissues has encouraged researchers in biomedical areas to work on various piezoelectric materials for fabricating tissue engineering scaffolds. In this review article, the way that cells of different tissues like cardio, bone, cartilage, bladder, nerve, skin, tendon, and ligament respond to electric fields and the mechanism of tissue regeneration with the help of piezoelectric effect will be discussed. Furthermore, all of the piezoelectric materials are not suitable for biomedical applications even if they have high piezoelectricity since other properties such as biocompatibility are vital. Seen in this light, the proper piezoelectric materials which are approved for biomedical applications are mentioned. Totally, the present review introduces the recent materials and technologies that have been used for tissue engineering besides the role of electric fields in living tissues.
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Affiliation(s)
- Aryan Najjari
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | | | - S A Seyyed Ebrahimi
- Advanced Magnetic Materials Research Center, College of Engineering, University of Tehran, Tehran, Iran
| | - Shoma Suresh K
- Advanced Magnetic Materials Research Center, College of Engineering, University of Tehran, Tehran, Iran
| | - Sasirekha Krishnan
- Advanced Magnetic Materials Research Center, College of Engineering, University of Tehran, Tehran, Iran
| | - Chittibabu Shanthi
- Biomaterials & Organ Engineering Group, Centre for Biomaterials, Cellular and Molecular Theranostics, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, India
| | - Murugan Ramalingam
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
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18
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D’Alessandro D, Ricci C, Milazzo M, Strangis G, Forli F, Buda G, Petrini M, Berrettini S, Uddin MJ, Danti S, Parchi P. Piezoelectric Signals in Vascularized Bone Regeneration. Biomolecules 2021; 11:1731. [PMID: 34827729 PMCID: PMC8615512 DOI: 10.3390/biom11111731] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 02/07/2023] Open
Abstract
The demand for bone substitutes is increasing in Western countries. Bone graft substitutes aim to provide reconstructive surgeons with off-the-shelf alternatives to the natural bone taken from humans or animal species. Under the tissue engineering paradigm, biomaterial scaffolds can be designed by incorporating bone stem cells to decrease the disadvantages of traditional tissue grafts. However, the effective clinical application of tissue-engineered bone is limited by insufficient neovascularization. As bone is a highly vascularized tissue, new strategies to promote both osteogenesis and vasculogenesis within the scaffolds need to be considered for a successful regeneration. It has been demonstrated that bone and blood vases are piezoelectric, namely, electric signals are locally produced upon mechanical stimulation of these tissues. The specific effects of electric charge generation on different cells are not fully understood, but a substantial amount of evidence has suggested their functional and physiological roles. This review summarizes the special contribution of piezoelectricity as a stimulatory signal for bone and vascular tissue regeneration, including osteogenesis, angiogenesis, vascular repair, and tissue engineering, by considering different stem cell sources entailed with osteogenic and angiogenic potential, aimed at collecting the key findings that may enable the development of successful vascularized bone replacements useful in orthopedic and otologic surgery.
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Affiliation(s)
- Delfo D’Alessandro
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, 56126 Pisa, Italy; (D.D.); (F.F.); (S.B.)
| | - Claudio Ricci
- Department of Translational Research and of New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (C.R.); (P.P.)
| | - Mario Milazzo
- The BioRobotics Intitute, Scuola Superiore Sant’Anna, 56024 Pontedera, Italy;
| | - Giovanna Strangis
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy;
| | - Francesca Forli
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, 56126 Pisa, Italy; (D.D.); (F.F.); (S.B.)
| | - Gabriele Buda
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (G.B.); (M.P.)
| | - Mario Petrini
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (G.B.); (M.P.)
| | - Stefano Berrettini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, 56126 Pisa, Italy; (D.D.); (F.F.); (S.B.)
| | - Mohammed Jasim Uddin
- Department of Chemistry, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA;
| | - Serena Danti
- The BioRobotics Intitute, Scuola Superiore Sant’Anna, 56024 Pontedera, Italy;
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy;
| | - Paolo Parchi
- Department of Translational Research and of New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (C.R.); (P.P.)
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19
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Advancing Regenerative Medicine Through the Development of Scaffold, Cell Biology, Biomaterials and Strategies of Smart Material. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00227-w] [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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20
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Mostafa AA, Mahmoud AA, Hamid MAA, Basha M, El-Okaily MS, Abdelkhalek AFA, El-Anwar MI, El Moshy S, Gibaly A, Hassan EA. An in vitro / in vivo release test of risedronate drug loaded nano-bioactive glass composite scaffolds. Int J Pharm 2021; 607:120989. [PMID: 34389417 DOI: 10.1016/j.ijpharm.2021.120989] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 01/06/2023]
Abstract
Three-dimensional (3D) matrices scaffolds play a noteworthy role in promoting cell generation and propagation. In this study, scaffolds prepared from chitosan/polyvinyl alcohol loaded with/without an osteoporotic drug (risedronate) and nano-bioactive glass (nBG) have been developed to promote healing of bone defects. The scaffolds were characterized by scanning electron microscopy (SEM), porosity test as well as mechanical strength. The pattern of drug release and ability to promote the proliferation of Saos-2osteosarcoma cells had also been reported. Osteogenic potential of the scaffolds was evaluated by testing their effect on healing critical-sized dog's mandibular bone defects. Increasing chitosan and nBG in the porous scaffolds induced decrease in drug release, increased the scaffold's strength and supported their cell proliferation, alkaline phosphatase (ALP) activities, as well as increased calcium deposition. Histological and histomorphometric results demonstrated newly formed bone trabeculae inside critical-sized mandibular defects when treated with scaffolds. Trabecular thickness, bone volume/tissue volume and the percentage of mature collagen fibers increased in groups treated with scaffolds loaded with 10% nBG and risedronate or loaded with 30% nBG with/without risedronate compared with those treated with non-loaded scaffolds and empty control groups. These findings confirmed the potential osteogenic activity of chitosan/polyvinyl alcohol-based scaffolds loaded with risedronate and nBG.
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Affiliation(s)
- Amany A Mostafa
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Refractories, Ceramics & Building Materials Department (Biomaterials group), National Research Centre, Cairo, Egypt.
| | - Azza A Mahmoud
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Department of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt; Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Mohamed A Abdel Hamid
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mona Basha
- Department of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt
| | - Mohamed S El-Okaily
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Refractories, Ceramics & Building Materials Department (Biomaterials group), National Research Centre, Cairo, Egypt
| | - Abdel Fattah A Abdelkhalek
- Department of Microbiology of Supplementary General Science, Faculty of Oral & Dental Medicine, Future University in Egypt, Cairo, Egypt
| | - Mohamed I El-Anwar
- Department of Mechanical Engineering, National Research Centre, Cairo, Egypt
| | - Sara El Moshy
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Amr Gibaly
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Beni-Suef University, Beni-Suef, Egypt
| | - Elham A Hassan
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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21
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A self-powered implantable and bioresorbable electrostimulation device for biofeedback bone fracture healing. Proc Natl Acad Sci U S A 2021; 118:2100772118. [PMID: 34260393 PMCID: PMC8285966 DOI: 10.1073/pnas.2100772118] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Electrostimulation has been recognized as a promising nonpharmacological treatment in orthopedics to promote bone fracture healing. However, clinical applications have been largely limited by the complexity of equipment operation and stimulation implementation. Here, we present a self-powered implantable and bioresorbable bone fracture electrostimulation device, which consists of a triboelectric nanogenerator for electricity generation and a pair of dressing electrodes for applying electrostimulations directly toward the fracture. The device can be attached to irregular tissue surfaces and provide biphasic electric pulses in response to nearby body movements. We demonstrated the operation of this device on rats and achieved effective bone fracture healing in as short as 6 wk versus the controls for more than 10 wk to reach the same healing result. The optimized electrical field could activate relevant growth factors to regulate bone microenvironment for promoting bone formation and bone remodeling to accelerate bone regeneration and maturation, with statistically significant 27% and 83% improvement over the control groups in mineral density and flexural strength, respectively. This work provided an effective implantable fracture therapy device that is self-responsive, battery free, and requires no surgical removal after fulfilling the biomedical intervention.
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Mei Q, Rao J, Bei HP, Liu Y, Zhao X. 3D Bioprinting Photo-Crosslinkable Hydrogels for Bone and Cartilage Repair. Int J Bioprint 2021; 7:367. [PMID: 34286152 PMCID: PMC8287509 DOI: 10.18063/ijb.v7i3.367] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/31/2021] [Indexed: 11/23/2022] Open
Abstract
Three-dimensional (3D) bioprinting has become a promising strategy for bone manufacturing, with excellent control over geometry and microarchitectures of the scaffolds. The bioprinting ink for bone and cartilage engineering has thus become the key to developing 3D constructs for bone and cartilage defect repair. Maintaining the balance of cellular viability, drugs or cytokines' function, and mechanical integrity is critical for constructing 3D bone and/or cartilage scaffolds. Photo-crosslinkable hydrogel is one of the most promising materials in tissue engineering; it can respond to light and induce structural or morphological transition. The biocompatibility, easy fabrication, as well as controllable mechanical and degradation properties of photo-crosslinkable hydrogel can meet various requirements of the bone and cartilage scaffolds, which enable it to serve as an effective bio-ink for 3D bioprinting. Here, in this review, we first introduce commonly used photo-crosslinkable hydrogel materials and additives (such as nanomaterials, functional cells, and drugs/cytokine), and then discuss the applications of the 3D bioprinted photo-crosslinkable hydrogel scaffolds for bone and cartilage engineering. Finally, we conclude the review with future perspectives about the development of 3D bioprinting photo-crosslinkable hydrogels in bone and cartilage engineering.
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Affiliation(s)
- Quanjing Mei
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Jingdong Rao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Ho Pan Bei
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | | | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
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23
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Stupin DD, Kuzina EA, Abelit AA, Emelyanov AK, Nikolaev DM, Ryazantsev MN, Koniakhin SV, Dubina MV. Bioimpedance Spectroscopy: Basics and Applications. ACS Biomater Sci Eng 2021; 7:1962-1986. [PMID: 33749256 DOI: 10.1021/acsbiomaterials.0c01570] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this review, we aim to introduce the reader to the technique of electrical impedance spectroscopy (EIS) with a focus on its biological, biomaterials, and medical applications. We explain the theoretical and experimental aspects of the EIS with the details essential for biological studies, i.e., interaction of metal electrodes with biological matter and liquids, strategies of measurement rate increasing, noise reduction in bio-EIS experiments, etc. We also give various examples of successful bio-EIS practical implementations in science and technology, from whole-body health monitoring and sensors for vision prosthetic care to single living cell examination platforms, virus disease research, biomolecules detection, and implementation of novel biomaterials. The present review can be used as a bio-EIS tutorial for students as well as a handbook for scientists and engineers because of the extensive references covering the contemporary research papers in the field.
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Affiliation(s)
- Daniil D Stupin
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia
| | - Ekaterina A Kuzina
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia
| | - Anna A Abelit
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia.,Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, St. Petersburg 195251, Russia
| | - Anton K Emelyanov
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia.,Pavlov First Saint Petersburg State Medical University, L'va Tolstogo Street. 6-8, Saint Petersburg 197022, Russia
| | - Dmitrii M Nikolaev
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia
| | - Mikhail N Ryazantsev
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii pr, Saint Petersburg 198504, Russia
| | - Sergei V Koniakhin
- Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia.,Institut Pascal, PHOTON-N2, Université Clermont Auvergne, CNRS, SIGMA Clermont, Clermont-Ferrand F-63000, France
| | - Michael V Dubina
- Institute of Highly Pure Biopreparation of the Federal Medical-Biological Agency, Pudozhskaya 7, St. Petersburg 197110, Russia
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24
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Riaz A, Witte K, Bodnar W, Seitz H, Schell N, Springer A, Burkel E. Tunable Pseudo-Piezoelectric Effect in Doped Calcium Titanate for Bone Tissue Engineering. MATERIALS 2021; 14:ma14061495. [PMID: 33803796 PMCID: PMC8003264 DOI: 10.3390/ma14061495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/11/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022]
Abstract
CaTiO3 is a promising candidate as a pseudo-piezoelectric scaffold material for bone implantation. In this study, pure and magnesium/iron doped CaTiO3 are synthesized by sol-gel method and spark plasma sintering. Energy dispersive X-ray mapping confirm the homogenous distribution of doping elements in sintered samples. High-energy X-ray diffraction investigations reveal that doping of nanostructured CaTiO3 increased the strain and defects in the structure of CaTiO3 compared to the pure one. This led to a stronger pseudo-piezoelectric effect in the doped samples. The charge produced in magnesium doped CaTiO3 due to the direct piezoelectric effect is (2.9 ± 0.1) pC which was larger than the one produced in pure CaTiO3 (2.1 ± 0.3) pC, whereas the maximum charge was generated by iron doped CaTiO3 with (3.6 ± 0.2) pC. Therefore, the pseudo-piezoelectric behavior can be tuned by doping. This tuning of pseudo-piezoelectric response provides the possibility to systematically study the bone response using different piezoelectric strengths and possibly adjust for bone tissue engineering.
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Affiliation(s)
- Abdullah Riaz
- Chair of Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 6, 18059 Rostock, Germany;
- Correspondence: ; Tel.: +49-381-498-9138
| | - Kerstin Witte
- INP Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; (K.W.); (W.B.)
| | - Wiktor Bodnar
- INP Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; (K.W.); (W.B.)
| | - Hermann Seitz
- Chair of Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig-Weg 6, 18059 Rostock, Germany;
- Department of Life, Light and Matter, University of Rostock, Albert Einstein-Str. 25, 18059 Rostock, Germany
| | - Norbert Schell
- Helmholtz-Zentrum Geesthacht, Max Plank-Str. 1, 21502 Geesthacht, Germany;
| | - Armin Springer
- Medical Biology and Electron Microscopy Centre, University Medical Center Rostock, Strempel-Str. 14, 18057 Rostock, Germany;
| | - Eberhard Burkel
- Institute of Physics, University of Rostock, Albert Einstein-Str. 23-24, 18059 Rostock, Germany;
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25
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Design and development of poly-L/D-lactide copolymer and barium titanate nanoparticle 3D composite scaffolds using breath figure method for tissue engineering applications. Colloids Surf B Biointerfaces 2021; 199:111530. [DOI: 10.1016/j.colsurfb.2020.111530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/30/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
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26
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Singh A, Dubey AK. Improved antibacterial and cellular response of electrets and piezobioceramics. J Biomater Appl 2021; 36:441-459. [PMID: 33599133 DOI: 10.1177/0885328221991965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The bacterial contamination in implants has been recognized as one of the key issues in orthopedics. In this article, a new technique of electrical polarization of various non-piezoelectric and piezoelectric biocompatible ceramics has been explored to develop antibacterial implants. Optimally processed hydroxyapatite (HA), BaTiO3 (BT), CaTiO3 (CT), Na0.5K0.5NbO3 (NKN) and their composites have been used as model biomaterials to verify the concept. The phase evolution analyses and microstructural characterizations were performed for sintered samples. The samples were polarized at polarizing voltage and temperature of 20 kV and 500°C, respectively, for 30 min. The hydrophilicity of polarized surfaces was examined using deionized water and culture media. The polarization induced in-vitro antibacterial study was performed for both, gram positive and gram negative bacteria. The viability of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) bacteria reduces significantly on the polarized surfaces. In addition, the influence of polarization on antibacterial response has been explored via various mechanisms such as development of reactive oxygen species (ROS), catalase activity and lipoperoxidation. Furthermore, the cellular response of polarized surfaces was also examined using SaOS2 and MG-63 cells. The viability of SaOS2 and MG-63 cells was observed to increase significantly on negatively polarized surfaces. Overall, the surface treatment enhances the antibacterial response of HA, NKN, BT, CT and their composites surfaces with positive influence on cellular response.
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Affiliation(s)
- Angaraj Singh
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi, India
| | - Ashutosh Kumar Dubey
- Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi, India
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27
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Beta-Titanium Alloy Covered by Ferroelectric Coating–Physicochemical Properties and Human Osteoblast-Like Cell Response. COATINGS 2021. [DOI: 10.3390/coatings11020210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Beta-titanium alloys are promising materials for bone implants due to their advantageous mechanical properties. For enhancing the interaction of bone cells with this perspective material, we developed a ferroelectric barium titanate (BaTiO3) coating on a Ti39Nb alloy by hydrothermal synthesis. This coating was analyzed by scanning electron and Raman microscopy, X-ray diffraction, piezoresponse force microscopy, X-ray photoelectron spectroscopy, nanoindentation, and roughness measurement. Leaching experiments in a saline solution revealed that Ba is released from the coating. A progressive decrease of Ba concentration in the material was also found after 1, 3, and 7 days of cultivation of human osteoblast-like Saos-2 cells. On day 1, the Saos-2 cells adhered on the BaTiO3 film in higher initial numbers than on the bare alloy, but they were less spread, and their initial proliferation rate was slower. These cells also contained a lower amount of beta1-integrins and vinculin, i.e., molecules involved in cell adhesion, and produced a lower amount of collagen I. This cell behavior was attributed to a higher surface roughness of BaTiO3 film rather than to its potential cytotoxicity, because the cell viability on this film was very high, reaching almost 99%. The amount of alkaline phosphatase, an enzyme involved in bone matrix mineralization, was similar in cells on the BaTiO3-coated and uncoated alloy, and on day 7, the cells on BaTiO3 film attained a higher final cell population density. These results indicate that after some improvements, particularly in its roughness and stability, the hydrothermal ferroelectric BaTiO3 film could be promising coating for improved osseointegration of bone implants.
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28
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Zheng T, Huang Y, Zhang X, Cai Q, Deng X, Yang X. Mimicking the electrophysiological microenvironment of bone tissue using electroactive materials to promote its regeneration. J Mater Chem B 2020; 8:10221-10256. [PMID: 33084727 DOI: 10.1039/d0tb01601b] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The process of bone tissue repair and regeneration is complex and requires a variety of physiological signals, including biochemical, electrical and mechanical signals, which collaborate to ensure functional recovery. The inherent piezoelectric properties of bone tissues can convert mechanical stimulation into electrical effects, which play significant roles in bone maturation, remodeling and reconstruction. Electroactive materials, including conductive materials, piezoelectric materials and electret materials, can simulate the physiological and electrical microenvironment of bone tissue, thereby promoting bone regeneration and reconstruction. In this paper, the structures and performances of different types of electroactive materials and their applications in the field of bone repair and regeneration are reviewed, particularly by providing the results from in vivo evaluations using various animal models. Their advantages and disadvantages as bone repair materials are discussed, and the methods for tuning their performances are also described, with the aim of providing an up-to-date account of the proposed topics.
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Affiliation(s)
- Tianyi Zheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Xuliang Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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29
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Olson JL, Groman S, Velez-Montoya R. Bioceramic implant reduces intraocular VEGF levels. Exp Eye Res 2020; 200:108227. [PMID: 32898514 DOI: 10.1016/j.exer.2020.108227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/02/2020] [Accepted: 09/03/2020] [Indexed: 11/26/2022]
Abstract
Elevated intraocular levels of angiogenic cytokines such as vascular endothelial growth factor (VEGF) have been implicated the development of diabetic retinopathy. Over a decade of clinical evidence shows intravitreal injection of anti-VEGF agents is associated with decreased disease progression and preservation of vision. However, the treatment burden associated with monthly injections limits the effectiveness of existing anti-VEGF therapies. Current research has focused on sustained treatment paradigms such as longer acting drugs, drug delivery implants, and gene therapy. In this study, we tested a novel approach by dialyzing proteins from the vitreous using bioceramic implant composed of hydroxyapatite. Preliminary in vitro and in vivo studies demonstrate a high affinity and capacity for VEGF absorption. After three months implantation in New Zealand White Cross rabbits, the hydroxyapatite demonstrated good biocompatibility with no inflammation and normal retinal physiology and histology. These studies demonstrate that prolonged VEGF suppression intraocularly may be accomplished with a bioceramic implant.
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Affiliation(s)
- Jeffrey L Olson
- Sue Anschutz-Rodgers Eye Center, Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA.
| | - Sergio Groman
- Sue Anschutz-Rodgers Eye Center, Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Raul Velez-Montoya
- Sue Anschutz-Rodgers Eye Center, Department of Ophthalmology, University of Colorado School of Medicine, Aurora, CO, USA
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30
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Qian W, Yang W, Zhang Y, Bowen CR, Yang Y. Piezoelectric Materials for Controlling Electro-Chemical Processes. NANO-MICRO LETTERS 2020; 12:149. [PMID: 34138166 PMCID: PMC7770897 DOI: 10.1007/s40820-020-00489-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/15/2020] [Indexed: 05/19/2023]
Abstract
Piezoelectric materials have been analyzed for over 100 years, due to their ability to convert mechanical vibrations into electric charge or electric fields into a mechanical strain for sensor, energy harvesting, and actuator applications. A more recent development is the coupling of piezoelectricity and electro-chemistry, termed piezo-electro-chemistry, whereby the piezoelectrically induced electric charge or voltage under a mechanical stress can influence electro-chemical reactions. There is growing interest in such coupled systems, with a corresponding growth in the number of associated publications and patents. This review focuses on recent development of the piezo-electro-chemical coupling multiple systems based on various piezoelectric materials. It provides an overview of the basic characteristics of piezoelectric materials and comparison of operating conditions and their overall electro-chemical performance. The reported piezo-electro-chemical mechanisms are examined in detail. Comparisons are made between the ranges of material morphologies employed, and typical operating conditions are discussed. In addition, potential future directions and applications for the development of piezo-electro-chemical hybrid systems are described. This review provides a comprehensive overview of recent studies on how piezoelectric materials and devices have been applied to control electro-chemical processes, with an aim to inspire and direct future efforts in this emerging research field.
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Affiliation(s)
- Weiqi Qian
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Weiyou Yang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315211, People's Republic of China.
| | - Yan Zhang
- Department of Mechanical Engineering, University of Bath, Bath, BA2 7AK, UK
| | - Chris R Bowen
- Department of Mechanical Engineering, University of Bath, Bath, BA2 7AK, UK.
| | - Ya Yang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China.
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
- Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, People's Republic of China.
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31
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Municoy S, Álvarez Echazú MI, Antezana PE, Galdopórpora JM, Olivetti C, Mebert AM, Foglia ML, Tuttolomondo MV, Alvarez GS, Hardy JG, Desimone MF. Stimuli-Responsive Materials for Tissue Engineering and Drug Delivery. Int J Mol Sci 2020; 21:E4724. [PMID: 32630690 PMCID: PMC7369929 DOI: 10.3390/ijms21134724] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/28/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
Smart or stimuli-responsive materials are an emerging class of materials used for tissue engineering and drug delivery. A variety of stimuli (including temperature, pH, redox-state, light, and magnet fields) are being investigated for their potential to change a material's properties, interactions, structure, and/or dimensions. The specificity of stimuli response, and ability to respond to endogenous cues inherently present in living systems provide possibilities to develop novel tissue engineering and drug delivery strategies (for example materials composed of stimuli responsive polymers that self-assemble or undergo phase transitions or morphology transformations). Herein, smart materials as controlled drug release vehicles for tissue engineering are described, highlighting their potential for the delivery of precise quantities of drugs at specific locations and times promoting the controlled repair or remodeling of tissues.
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Affiliation(s)
- Sofia Municoy
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - María I. Álvarez Echazú
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - Pablo E. Antezana
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - Juan M. Galdopórpora
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - Christian Olivetti
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - Andrea M. Mebert
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - María L. Foglia
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - María V. Tuttolomondo
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - Gisela S. Alvarez
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
| | - John G. Hardy
- Department of Chemistry, Faraday Building, Lancaster University, Lancaster, Lancashire LA1 4YB, UK
- Materials Science Institute, Faraday Building, Lancaster University, Lancaster, Lancashire LA1 4YB, UK
| | - Martin F. Desimone
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Junín 956, Piso 3° (1113), Buenos Aires 1113, Argentina; (S.M.); (M.I.Á.E.); (P.E.A.); (J.M.G.); (C.O.); (A.M.M.); (M.L.F.); (M.V.T.); (G.S.A.)
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32
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Zaszczynska A, Sajkiewicz P, Gradys A. Piezoelectric Scaffolds as Smart Materials for Neural Tissue Engineering. Polymers (Basel) 2020; 12:E161. [PMID: 31936240 PMCID: PMC7022784 DOI: 10.3390/polym12010161] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/31/2019] [Accepted: 01/05/2020] [Indexed: 01/03/2023] Open
Abstract
Injury to the central or peripheral nervous systems leads to the loss of cognitive and/or sensorimotor capabilities, which still lacks an effective treatment. Tissue engineering in the post-injury brain represents a promising option for cellular replacement and rescue, providing a cell scaffold for either transplanted or resident cells. Tissue engineering relies on scaffolds for supporting cell differentiation and growth with recent emphasis on stimuli responsive scaffolds, sometimes called smart scaffolds. One of the representatives of this material group is piezoelectric scaffolds, being able to generate electrical charges under mechanical stimulation, which creates a real prospect for using such scaffolds in non-invasive therapy of neural tissue. This paper summarizes the recent knowledge on piezoelectric materials used for tissue engineering, especially neural tissue engineering. The most used materials for tissue engineering strategies are reported together with the main achievements, challenges, and future needs for research and actual therapies. This review provides thus a compilation of the most relevant results and strategies and serves as a starting point for novel research pathways in the most relevant and challenging open questions.
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Affiliation(s)
- Angelika Zaszczynska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
| | - Arkadiusz Gradys
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
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33
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Metwally S, Stachewicz U. Surface potential and charges impact on cell responses on biomaterials interfaces for medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109883. [DOI: 10.1016/j.msec.2019.109883] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/02/2019] [Accepted: 06/11/2019] [Indexed: 12/12/2022]
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Saberi A, Jabbari F, Zarrintaj P, Saeb MR, Mozafari M. Electrically Conductive Materials: Opportunities and Challenges in Tissue Engineering. Biomolecules 2019; 9:E448. [PMID: 31487913 PMCID: PMC6770812 DOI: 10.3390/biom9090448] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 01/09/2023] Open
Abstract
Tissue engineering endeavors to regenerate tissues and organs through appropriate cellular and molecular interactions at biological interfaces. To this aim, bio-mimicking scaffolds have been designed and practiced to regenerate and repair dysfunctional tissues by modifying cellular activity. Cellular activity and intracellular signaling are performances given to a tissue as a result of the function of elaborated electrically conductive materials. In some cases, conductive materials have exhibited antibacterial properties; moreover, such materials can be utilized for on-demand drug release. Various types of materials ranging from polymers to ceramics and metals have been utilized as parts of conductive tissue engineering scaffolds, having conductivity assortments from a range of semi-conductive to conductive. The cellular and molecular activity can also be affected by the microstructure; therefore, the fabrication methods should be evaluated along with an appropriate selection of conductive materials. This review aims to address the research progress toward the use of electrically conductive materials for the modulation of cellular response at the material-tissue interface for tissue engineering applications.
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Affiliation(s)
- Azadeh Saberi
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box: 31787-316 Tehran, Iran.
| | - Farzaneh Jabbari
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box: 31787-316 Tehran, Iran.
| | - Payam Zarrintaj
- Polymer Engineering Department, Faculty of Engineering, Urmia University, P.O. Box: 5756151818-165 Urmia, Iran.
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654 Tehran, Iran.
| | - Masoud Mozafari
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), P.O Box: 14665-354 Tehran, Iran.
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35
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Poon KK, Wurm MC, Evans DM, Einarsrud MA, Lutz R, Glaum J. Biocompatibility of (Ba,Ca)(Zr,Ti)O 3 piezoelectric ceramics for bone replacement materials. J Biomed Mater Res B Appl Biomater 2019; 108:1295-1303. [PMID: 31444960 DOI: 10.1002/jbm.b.34477] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/01/2019] [Accepted: 08/06/2019] [Indexed: 02/02/2023]
Abstract
Total joint replacement implants are generally designed to physically mimic the biological environment to ensure compatibility with the host tissue. However, implant instability exposes patients to long recovery periods, high risk for revision surgeries, and high expenses. Introducing electrical stimulation to the implant site to accelerate healing is promising, but the cumbersome nature of wired devices is detrimental to the implant design. We propose a novel strategy to stimulate cells at the implant site by utilizing piezoelectric ceramics as electrical stimulation sources. The inherent ability of these materials to form electric surface potentials under mechanical load allows them to act as internal power sources. This characteristic is commonly exploited in non-biomedical applications such as transducers or sensors. We investigate calcium/zirconium-doped barium titanate (BCZT) ceramics in an in vitro environment to determine their potential as implant materials. BCZT exhibits low cytotoxicity with human osteoblast and endothelial cells as well as high piezoelectric responses. Microstructural adaptation was identified as a route for optimizing piezoelectric behavior. Our results show that BCZT is a promising system for biomedical applications. Its characteristic ability to autonomously generate electric surface potentials opens the possibility to functionalize existing bone replacement implant designs to improve implant ingrowth and long-term stability.
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Affiliation(s)
- Kara K Poon
- Department of Materials Science and Engineering, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Matthias C Wurm
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Donald M Evans
- Department of Materials Science and Engineering, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Mari-Ann Einarsrud
- Department of Materials Science and Engineering, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Rainer Lutz
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Julia Glaum
- Department of Materials Science and Engineering, NTNU Norwegian University of Science and Technology, Trondheim, Norway
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36
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Olthof MGL, Kempen DHR, Liu X, Dadsetan M, Tryfonidou MA, Yaszemski MJ, Dhert WJA, Lu L. Effect of Biomaterial Electrical Charge on Bone Morphogenetic Protein-2-Induced In Vivo Bone Formation. Tissue Eng Part A 2019; 25:1037-1052. [PMID: 30612538 DOI: 10.1089/ten.tea.2018.0140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
IMPACT STATEMENT Biomaterials can play a dual role in bone regeneration: they enable local sustained delivery of growth factors, such as bone morphogenetic protein-2 (BMP-2), while they provide structural support as scaffold. By better imitating the properties of native bone tissue, scaffolds may be both osteoconductive and osteoinductive. The latter can be achieved by modifying the electrical charge of the surface. The present work uses tunable oligo[(polyethylene glycol) fumarate] hydrogel and demonstrates that negative charge enhances BMP-2-induced bone formation compared with neutral or positive charge. Altogether, this indicates that tissue-specific surface charge modifications of biomaterials hold great promise in the field of tissue regeneration.
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Affiliation(s)
- Maurits G L Olthof
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota.,2Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota.,3Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.,4Department of Orthopaedics, University Medical Center, Utrecht, The Netherlands
| | | | - Xifeng Liu
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota.,2Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Mahrokh Dadsetan
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota.,2Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota
| | | | - Michael J Yaszemski
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota.,2Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Wouter J A Dhert
- 3Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.,4Department of Orthopaedics, University Medical Center, Utrecht, The Netherlands
| | - Lichun Lu
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota.,2Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota
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37
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Olthof MGL, Tryfonidou MA, Dadsetan M, Dhert WJA, Yaszemski MJ, Kempen DHR, Lu L. In Vitro and In Vivo Correlation of Bone Morphogenetic Protein-2 Release Profiles from Complex Delivery Vehicles. Tissue Eng Part C Methods 2019; 24:379-390. [PMID: 29756545 DOI: 10.1089/ten.tec.2018.0024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Local sustained delivery of bioactive molecules from biomaterials is a promising strategy to enhance bone regeneration. To optimize delivery vehicles for bone formation, the design characteristics are tailored with consequential effect on bone morphogenetic protein-2 (BMP-2) release and bone regeneration. Complying with the 3R principles (Replacement, Reduction, and Refinement), the growth factor release is often investigated in vitro using several buffers to mimic the in vivo physiological environment. However, this remains an unmet need. Therefore, this study investigates the in vitro-in vivo correlation (IVIVC) of BMP-2 release from complex delivery vehicles in several commonly used in vitro buffers: cell culture model, phosphate buffered saline, and a strong desorption buffer. The results from this study showed that the release environment affected the BMP-2 release profiles, creating distinct relationships between release versus time and differences in extent of release. According to the guidance set by the U.S. Food and Drug Administration (FDA), IVIVC resulted in level A internal predictability for individual composites. Since the IVIVC was influenced by the BMP-2 loading method and composite surface chemistry, the external predictive value of the IVIVCs was limited. These results show that the IVIVCs can be used for predicting the release of an individual composite. However, the models cannot be used for predicting in vivo release for different composite formulations since they lack external predictability. Potential confounding effects of drug type, delivery vehicle formulations, and application site should be added to the equation to develop one single IVIVC applicable for complex delivery vehicles. Altogether, these results imply that more sophisticated in vitro systems should be used in bone regeneration to accurately discriminate and predict in vivo BMP-2 release from different complex delivery vehicles.
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Affiliation(s)
- Maurits G L Olthof
- 1 Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine , Rochester, Minnesota.,2 Department of Orthopedic Surgery, Mayo Clinic College of Medicine , Rochester, Minnesota.,3 Department of Orthopaedics, University Medical Center Utrecht , Utrecht, The Netherlands .,4 Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University , Utrecht, The Netherlands
| | - Marianna A Tryfonidou
- 4 Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University , Utrecht, The Netherlands
| | - Mahrokh Dadsetan
- 1 Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine , Rochester, Minnesota.,2 Department of Orthopedic Surgery, Mayo Clinic College of Medicine , Rochester, Minnesota
| | - Wouter J A Dhert
- 4 Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University , Utrecht, The Netherlands
| | - Michael J Yaszemski
- 1 Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine , Rochester, Minnesota.,2 Department of Orthopedic Surgery, Mayo Clinic College of Medicine , Rochester, Minnesota
| | - Diederik H R Kempen
- 5 Department of Orthopaedic Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Lichun Lu
- 1 Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine , Rochester, Minnesota.,2 Department of Orthopedic Surgery, Mayo Clinic College of Medicine , Rochester, Minnesota
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Zlotnik S, Maltez-da Costa M, Barroca N, Hortigüela MJ, Singh MK, Fernandes MHV, Vilarinho PM. Functionalized-ferroelectric-coating-driven enhanced biomineralization and protein-conformation on metallic implants. J Mater Chem B 2019; 7:2177-2189. [DOI: 10.1039/c8tb02777c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the context of bone regeneration, it is important to have platforms that with appropriate stimuli can support the attachment and direct the growth, proliferation and differentiation of cells.
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Affiliation(s)
- Sebastian Zlotnik
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Marisa Maltez-da Costa
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Nathalie Barroca
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - María J. Hortigüela
- Center for Mechanical Technology and Automation (TEMA)
- Department of Mechanical Engineering
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Manoj Kumar Singh
- Center for Mechanical Technology and Automation (TEMA)
- Department of Mechanical Engineering
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Maria Helena V. Fernandes
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Paula Maria Vilarinho
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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Szewczyk PK, Metwally S, Karbowniczek JE, Marzec MM, Stodolak-Zych E, Gruszczyński A, Bernasik A, Stachewicz U. Surface-Potential-Controlled Cell Proliferation and Collagen Mineralization on Electrospun Polyvinylidene Fluoride (PVDF) Fiber Scaffolds for Bone Regeneration. ACS Biomater Sci Eng 2018; 5:582-593. [DOI: 10.1021/acsbiomaterials.8b01108] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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40
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Mandracchia B, Gennari O, Bramanti A, Grilli S, Ferraro P. Label-free quantification of the effects of lithium niobate polarization on cell adhesion via holographic microscopy. JOURNAL OF BIOPHOTONICS 2018; 11:e201700332. [PMID: 29405583 DOI: 10.1002/jbio.201700332] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/31/2018] [Indexed: 06/07/2023]
Abstract
The surface of a c- cut ferroelectric crystal at room temperature is characterized by the so-called screening surface charges, able to compensate the charge due to the spontaneous polarization. Recently, these charges inspired the investigation of the interaction affinity of live cells with lithium niobate and lithium tantalate crystals. However, different knowledge gaps still remain that prevent a reasonable application of these materials for biological applications. Here, a label-free holographic total internal reflection microscopy is shown; the technique is able to evaluate quantitatively the contact area of live fibroblast cells adhering onto the surface of a ferroelectric lithium niobate crystal. The results show values of contact area significantly different between cells adhering onto the positive or negative face of the crystal. This reinforces the reasons for using the polarization charge of these materials to study and/or control cellular processes and, thus, to develop an innovative platform based on polar dielectric functional substrates.
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Affiliation(s)
- Biagio Mandracchia
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Pozzuoli, Naples, Italy
| | - Oriella Gennari
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Pozzuoli, Naples, Italy
| | - Alessia Bramanti
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Pozzuoli, Naples, Italy
| | - Simonetta Grilli
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Pozzuoli, Naples, Italy
| | - Pietro Ferraro
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Pozzuoli, Naples, Italy
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41
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Giannini M, Primerano C, Berger L, Giannaccini M, Wang Z, Landi E, Cuschieri A, Dente L, Signore G, Raffa V. Nano-topography: Quicksand for cell cycle progression? NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:2656-2665. [PMID: 30010000 DOI: 10.1016/j.nano.2018.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/26/2018] [Accepted: 07/01/2018] [Indexed: 01/01/2023]
Abstract
The 3-D spatial and mechanical features of nano-topography can create alternative environments, which influence cellular response. In this paper, murine fibroblast cells were grown on surfaces characterized by protruding nanotubes. Cells cultured on such nano-structured surface exhibit stronger cellular adhesion compared to control groups, but despite the fact that stronger adhesion is generally believed to promote cell cycle progression, the time cells spend in G1 phase is doubled. This apparent contradiction is solved by confocal microscopy analysis, which shows that the nano-topography inhibits actin stress fiber formation. In turn, this impairs RhoA activation, which is required to suppress the inhibition of cell cycle progression imposed by p21/p27. This finding suggests that the generation of stress fibers, required to impose the homeostatic intracellular tension, rather than cell adhesion/spreading is the limiting factor for cell cycle progression. Indeed, nano-topography could represent a unique tool to inhibit proliferation in adherent well-spread cells.
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Affiliation(s)
| | | | - Liron Berger
- Department of Biology, Università di Pisa, Pisa, Italy.
| | | | - Zhigang Wang
- Institute for Medical Science and Technology, University of Dundee, Dundee, United Kingdom.
| | - Elena Landi
- Department of Biology, Università di Pisa, Pisa, Italy.
| | - Alfred Cuschieri
- Institute for Medical Science and Technology, University of Dundee, Dundee, United Kingdom.
| | - Luciana Dente
- Department of Biology, Università di Pisa, Pisa, Italy.
| | - Giovanni Signore
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy; NEST, Scuola Normale Superiore, and Istituto Nanoscienze-CNR, Pisa, Italy.
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42
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Piezoelectric materials as stimulatory biomedical materials and scaffolds for bone repair. Acta Biomater 2018; 73:1-20. [PMID: 29673838 DOI: 10.1016/j.actbio.2018.04.026] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/19/2018] [Accepted: 04/15/2018] [Indexed: 12/14/2022]
Abstract
The process of bone repair and regeneration requires multiple physiological cues including biochemical, electrical and mechanical - that act together to ensure functional recovery. Myriad materials have been explored as bioactive scaffolds to deliver these cues locally to the damage site, amongst these piezoelectric materials have demonstrated significant potential for tissue engineering and regeneration, especially for bone repair. Piezoelectric materials have been widely explored for power generation and harvesting, structural health monitoring, and use in biomedical devices. They have the ability to deform with physiological movements and consequently deliver electrical stimulation to cells or damaged tissue without the need of an external power source. Bone itself is piezoelectric and the charges/potentials it generates in response to mechanical activity are capable of enhancing bone growth. Piezoelectric materials are capable of stimulating the physiological electrical microenvironment, and can play a vital role to stimulate regeneration and repair. This review gives an overview of the association of piezoelectric effect with bone repair, and focuses on state-of-the-art piezoelectric materials (polymers, ceramics and their composites), the fabrication routes to produce piezoelectric scaffolds, and their application in bone repair. Important characteristics of these materials from the perspective of bone tissue engineering are highlighted. Promising upcoming strategies and new piezoelectric materials for this application are presented. STATEMENT OF SIGNIFICANCE Electrical stimulation/electrical microenvironment are known effect the process of bone regeneration by altering the cellular response and are crucial in maintaining tissue functionality. Piezoelectric materials, owing to their capability of generating charges/potentials in response to mechanical deformations, have displayed great potential for fabricating smart stimulatory scaffolds for bone tissue engineering. The growing interest of the scientific community and compelling results of the published research articles has been the motivation of this review article. This article summarizes the significant progress in the field with a focus on the fabrication aspects of piezoelectric materials. The review of both material and cellular aspects on this topic ensures that this paper appeals to both material scientists and tissue engineers.
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43
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Jelínek M, Buixaderas E, Drahokoupil J, Kocourek T, Remsa J, Vaněk P, Vandrovcová M, Doubková M, Bačáková L. Laser-synthesized nanocrystalline, ferroelectric, bioactive BaTiO 3/Pt/FS for bone implants. J Biomater Appl 2018; 32:1464-1475. [PMID: 29621929 DOI: 10.1177/0885328218768646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The goal of our study is to design BaTiO3 ferroelectric layers that will cover metal implants and provide improved osseointegration. We synthesized ferroelectric BaTiO3 layers on Pt/fused silica substrates, and we studied their physical and bio-properties. BaTiO3 and Pt layers were prepared using KrF excimer laser ablation at substrate temperature Ts in the range from 200°C to 750°C in vacuum or under oxygen pressure of 10 Pa, 15 Pa, and 20 Pa. The BaTiO3/Pt and Pt layers adhered well to the substrates. BaTiO3 films of crystallite size 60-140 nm were fabricated. Ferroelectric loops were measured and ferroelectricity was also confirmed using Raman scattering measurements. Results of atomic force microscopy topology and the X-ray diffraction structure of the BaTiO3/Pt/fused silica multilayers are presented. The adhesion, viability, growth, and osteogenic differentiation of human osteoblast-like Saos-2 cells were also studied. On days 1, 3, and 7 after seeding, the lowest cell numbers were found on non-ferroelectric BaTiO3, while the values on ferroelectric BaTiO3, on non-annealed and annealed Pt interlayers, and on the control tissue culture polystyrene dishes and microscopic glass slides were similar, and were usually significantly higher than on non-ferroelectric BaTiO3. A similar trend was observed for the intensity of the fluorescence of alkaline phosphatase, a medium-term marker of osteogenic differentiation, and of osteocalcin, a late marker of osteogenic differentiation. At the same time, the cell viability, tested on day 1 after seeding, was very high on all tested samples, reaching 93-99%. Ferroelectric BaTiO3 films deposited on metallic bone implants through a Pt interlayer can therefore markedly improve the osseointegration of these implants in comparison with non-ferroelectric BaTiO3 films.
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Affiliation(s)
- Miroslav Jelínek
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Elena Buixaderas
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Jan Drahokoupil
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Tomáš Kocourek
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Jan Remsa
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Přemysl Vaněk
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Marta Vandrovcová
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Martina Doubková
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Lucie Bačáková
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
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44
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Tandon B, Magaz A, Balint R, Blaker JJ, Cartmell SH. Electroactive biomaterials: Vehicles for controlled delivery of therapeutic agents for drug delivery and tissue regeneration. Adv Drug Deliv Rev 2018; 129:148-168. [PMID: 29262296 DOI: 10.1016/j.addr.2017.12.012] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 12/16/2017] [Indexed: 01/09/2023]
Abstract
Electrical stimulation for delivery of biochemical agents such as genes, proteins and RNA molecules amongst others, holds great potential for controlled therapeutic delivery and in promoting tissue regeneration. Electroactive biomaterials have the capability of delivering these agents in a localized, controlled, responsive and efficient manner. These systems have also been combined for the delivery of both physical and biochemical cues and can be programmed to achieve enhanced effects on healing by establishing control over the microenvironment. This review focuses on current state-of-the-art research in electroactive-based materials towards the delivery of drugs and other therapeutic signalling agents for wound care treatment. Future directions and current challenges for developing effective electroactive approach based therapies for wound care are discussed.
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45
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Zhang Y, Xie M, Adamaki V, Khanbareh H, Bowen CR. Control of electro-chemical processes using energy harvesting materials and devices. Chem Soc Rev 2018; 46:7757-7786. [PMID: 29125613 DOI: 10.1039/c7cs00387k] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Energy harvesting is a topic of intense interest that aims to convert ambient forms of energy such as mechanical motion, light and heat, which are otherwise wasted, into useful energy. In many cases the energy harvester or nanogenerator converts motion, heat or light into electrical energy, which is subsequently rectified and stored within capacitors for applications such as wireless and self-powered sensors or low-power electronics. This review covers the new and emerging area that aims to directly couple energy harvesting materials and devices with electro-chemical systems. The harvesting approaches to be covered include pyroelectric, piezoelectric, triboelectric, flexoelectric, thermoelectric and photovoltaic effects. These are used to influence a variety of electro-chemical systems such as applications related to water splitting, catalysis, corrosion protection, degradation of pollutants, disinfection of bacteria and material synthesis. Comparisons are made between the range harvesting approaches and the modes of operation are described. Future directions for the development of electro-chemical harvesting systems are highlighted and the potential for new applications and hybrid approaches are discussed.
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Affiliation(s)
- Yan Zhang
- Materials and Structures Centre, Department of Mechanical Engineering, University of Bath, BA1 7AY, UK.
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46
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Ehterami A, Kazemi M, Nazari B, Saraeian P, Azami M. Fabrication and characterization of highly porous barium titanate based scaffold coated by Gel/HA nanocomposite with high piezoelectric coefficient for bone tissue engineering applications. J Mech Behav Biomed Mater 2018; 79:195-202. [DOI: 10.1016/j.jmbbm.2017.12.034] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/25/2017] [Accepted: 12/29/2017] [Indexed: 12/18/2022]
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47
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Jacob J, More N, Kalia K, Kapusetti G. Piezoelectric smart biomaterials for bone and cartilage tissue engineering. Inflamm Regen 2018; 38:2. [PMID: 29497465 PMCID: PMC5828134 DOI: 10.1186/s41232-018-0059-8] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/12/2018] [Indexed: 01/10/2023] Open
Abstract
Tissues like bone and cartilage are remodeled dynamically for their functional requirements by signaling pathways. The signals are controlled by the cells and extracellular matrix and transmitted through an electrical and chemical synapse. Scaffold-based tissue engineering therapies largely disturb the natural signaling pathways, due to their rigidity towards signal conduction, despite their therapeutic advantages. Thus, there is a high need of smart biomaterials, which can conveniently generate and transfer the bioelectric signals analogous to native tissues for appropriate physiological functions. Piezoelectric materials can generate electrical signals in response to the applied stress. Furthermore, they can stimulate the signaling pathways and thereby enhance the tissue regeneration at the impaired site. The piezoelectric scaffolds can act as sensitive mechanoelectrical transduction systems. Hence, it is applicable to the regions, where mechanical loads are predominant. The present review is mainly concentrated on the mechanism related to the electrical stimulation in a biological system and the different piezoelectric materials suitable for bone and cartilage tissue engineering.
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Affiliation(s)
- Jaicy Jacob
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Namdev More
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Kiran Kalia
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
| | - Govinda Kapusetti
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, 380054 India
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48
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Tolde Z, Starý V, Cvrček L, Vandrovcová M, Remsa J, Daniš S, Krčil J, Bačáková L, Špatenka P. Growth of a TiNb adhesion interlayer for bioactive coatings. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:652-658. [PMID: 28866212 DOI: 10.1016/j.msec.2017.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 06/06/2017] [Accepted: 07/10/2017] [Indexed: 11/19/2022]
Abstract
Surface bioactivity has been under intensive study with reference to its use in medical implants. Our study is focused on coatings prepared from an electroactive material which can support bone cell adhesion. Until now, hydroxyapatite films have usually been utilized as a chemically-active surface agent. However, electrically-active films could set a new direction in hard tissue replacement. As a base for these films, it is necessary to prepare an intermediate film, which can serve as a suitable barrier against the possible diffusion of some allergens and toxic elements from the substrate. The intermediate film also improves the adaptation of the mechanical properties of the basic material to an electroactive film. The aim of our work was to select an implantable and biocompatible material for this intermediate film that is suitable for coating several widely-used materials, to check the possibility of preparing an electroactive film for use on a material of this type, and to characterize the structure and several mechanical properties of this intermediate film. TiNb was selected as the material for the intermediate film, because of its excellent chemical and mechanical properties. TiNb coatings were deposited by magnetron sputtering on various substrates, namely Ti, Ti6Al4V, stainless steel, and bulk TiNb (as standard), and important properties of the layers, e.g. surface morphology and surface roughness, crystalline structure, etc., were characterized by several methods (SEM, EBSD, X-ray diffraction, nanoindentation and roughness measurement). It was found that the structure and the mechanical properties of the TiNb layer depended significantly on the type of substrate. TiNb was then used as a substrate for depositing a ferroelectrically active material, e.g., BaTiO3, and the adhesion, viability and proliferation of human osteoblast-like Saos-2 cells on this system were studied. We found that the electroactive BaTiO3 film was not only non-cytotoxic (i.e. it did not affect the cell viability). It also enhanced the growth of Saos-2 cells in comparison with pure TiNb and with standard tissue culture polystyrene wells, and also in comparison with BaTiO3 films deposited on Ti, i.e. a material clinically used for implantation into the bone.
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Affiliation(s)
- Zdeněk Tolde
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Vladimír Starý
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic.
| | - Ladislav Cvrček
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Marta Vandrovcová
- Dept. of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, Prague 4-Krc, Czech Republic
| | - Jan Remsa
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3108, 21201 Kladno, Czech Republic
| | - Stanislav Daniš
- Dept. of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Jan Krčil
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Lucie Bačáková
- Dept. of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, Prague 4-Krc, Czech Republic
| | - Petr Špatenka
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
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49
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Scalize PH, Bombonato-Prado KF, de Sousa LG, Rosa AL, Beloti MM, Semprini M, Gimenes R, de Almeida ALG, de Oliveira FS, Hallak Regalo SC, Siessere S. Poly(Vinylidene Fluoride-Trifluorethylene)/barium titanate membrane promotes de novo bone formation and may modulate gene expression in osteoporotic rat model. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:180. [PMID: 27770393 DOI: 10.1007/s10856-016-5799-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 10/14/2016] [Indexed: 05/20/2023]
Abstract
Osteoporosis is a chronic disease that impairs proper bone remodeling. Guided bone regeneration is a surgical technique that improves bone defect in a particular region through new bone formation, using barrier materials (e.g. membranes) to protect the space adjacent to the bone defect. The polytetrafluorethylene membrane is widely used in guided bone regeneration, however, new membranes are being investigated. The purpose of this study was to evaluate the effect of P(VDFTrFE)/BT [poly(vinylidene fluoride-trifluoroethylene)/barium titanate] membrane on in vivo bone formation. Twenty-three Wistar rats were submitted to bilateral ovariectomy. Five animals were subjected to sham surgery. After 150 days, bone defects were created and filled with P(VDF-TrFE)/BT membrane or PTFE membrane (except for the sham and OVX groups). After 4 weeks, the animals were euthanized and calvaria samples were subjected to histomorphometric and computed microtomography analysis (microCT), besides real time polymerase chain reaction (real time PCR) to evaluate gene expression. The histomorphometric analysis showed that the animals that received the P(VDF-TrFE)/BT membrane presented morphometric parameters similar or even better compared to the animals that received the PTFE membrane. The comparison between groups showed that gene expression of RUNX2, BSP, OPN, OSX and RANKL were lower on P(VDF-TrFE)/BT membrane; the gene expression of ALP, OC, RANK and CTSK were similar and the gene expression of OPG, CALCR and MMP9 were higher when compared to PTFE. The results showed that the P(VDF-TrFE)/BT membrane favors bone formation, and therefore, may be considered a promising biomaterial to support bone repair in a situation of osteoporosis.
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Affiliation(s)
- Priscilla Hakime Scalize
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Karina F Bombonato-Prado
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Luiz Gustavo de Sousa
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Adalberto Luiz Rosa
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Marcio Mateus Beloti
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Marisa Semprini
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | - Rossano Gimenes
- Federal University of Itajubá (UNIFEI), Itajubá, Minas Gerais, Brazil
| | - Adriana L G de Almeida
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil
| | | | | | - Selma Siessere
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, São Paulo, Brazil.
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50
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Jelínek M, Vaněk P, Tolde Z, Buixaderas E, Kocourek T, Studnička V, Drahokoupil J, Petzelt J, Remsa J, Tyunina M. PLD prepared bioactive BaTiO 3 films on TiNb implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:334-339. [PMID: 27770900 DOI: 10.1016/j.msec.2016.08.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/27/2016] [Accepted: 08/27/2016] [Indexed: 11/18/2022]
Abstract
BaTiO3 (BTO) layers were deposited by pulsed laser deposition (PLD) on TiNb, Pt/TiNb, Si (100), and fused silica substrates using various deposition conditions. Polycrystalline BTO with sizes of crystallites in the range from 90nm to 160nm was obtained at elevated substrate temperatures of (600°C-700°C). With increasing deposition temperature above 700°C the formation of unwanted rutile phase prevented the growth of perovskite ferroelectric BTO. Concurrently, with decreasing substrate temperature below 500°C, amorphous films were formed. Post-deposition annealing of the amorphous deposits allowed obtaining perovskite BTO. Using a very thin Pt interlayer between the BTO films and TiNb substrate enabled high-temperature growth of preferentially oriented BTO. Raman spectroscopy and electrical characterization indicated polar ferroelectric behaviour of the BTO films.
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Affiliation(s)
- Miroslav Jelínek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Přemysl Vaněk
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Zdeněk Tolde
- Department of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo náměstí 13, 121 35 Prague 2, Czech Republic
| | - Elena Buixaderas
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Tomáš Kocourek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Václav Studnička
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Drahokoupil
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Petzelt
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Remsa
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Marina Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland; Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
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