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POSS and SSQ Materials in Dental Applications: Recent Advances and Future Outlooks. Int J Mol Sci 2023; 24:ijms24054493. [PMID: 36901923 PMCID: PMC10003367 DOI: 10.3390/ijms24054493] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/07/2023] [Accepted: 02/11/2023] [Indexed: 03/03/2023] Open
Abstract
Recently, silsesquioxanes (SSQ) and polyhedral oligomeric silsesquioxanes (POSS) have gained much interest in the area of biomaterials, mainly due to their intrinsic properties such as biocompatibility, complete non-toxicity, the ability to self-assemble and to form a porous structure, facilitating cell proliferation, creating a superhydrophobic surface, osteoinductivity, and ability to bind hydroxyapatite. All the above has resulted in new developments in medicine. However, the application of POSS-containing materials in dentistry is still at initial stage and deserves a systematic description to ensure future development. Significant problems, such as reduction of polymerization shrinkage, water absorption, hydrolysis rate, poor adhesion and strength, unsatisfactory biocompatibility, and corrosion resistance of dental alloys, can be addressed by the design of multifunctional POSS-containing materials. Because of the presence of silsesquioxanes, it is possible to obtain smart materials that allow the stimulation of phosphates deposition and repairing of micro-cracks in dental fillings. Hybrid composites result in materials exhibiting shape memory, as well as antibacterial, self-cleaning, and self-healing properties. Moreover, introducing POSS into polymer matrix allows for materials for bone reconstruction, and wound healing. This review covers the recent developments in the field of POSS application in dental materials and gives the future perspectives within a promising field of biomedical material science and chemical engineering.
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Fu Y, Huang S, Feng Z, Huang L, Zhang X, Lin H, Mo A. MXene-Functionalized Ferroelectric Nanocomposite Membranes with Modulating Surface Potential Enhance Bone Regeneration. ACS Biomater Sci Eng 2023; 9:900-917. [PMID: 36715700 DOI: 10.1021/acsbiomaterials.2c01174] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Rapid and effective bone defect repair remains a challenging issue for clinical treatment. Applying biomaterials with endogenous surface potential has been widely studied to enhance bone regeneration, but how to regulate the electric potential and surface morphology of the implanted materials precisely to achieve an optimal bioelectric microenvironment is still a major challenge. The aim of this study is to develop electroactive biomaterials that better mimic the extracellular microenvironment for bone regeneration. Hence, MXene/polyvinylidene fluoride (MXene/PVDF) ferroelectric nanocomposite membranes were prepared by electrospinning. Physicochemical characterization demonstrated that Ti3C2Tx MXene nanosheets were wrapped in PVDF shell layer and the surface morphology and potential were modulated by altering the content of MXene, where uniform distribution of fibers and enhanced electric potential can be obtained and precisely assembled into a natural extracellular matrix (ECM) in bone tissue. Consequently, the MXene/PVDF membranes facilitated cell adhesion, stretching, and growth, showing good biocompatibility; meanwhile, their intrinsic electric potential promoted the recruitment of osteogenic cells and accelerated the differentiation of osteoblast. Furthermore, 1 wt % MXene/PVDF membrane with a suitable surface potential and better topographical structure for bone regeneration qualitatively and quantitatively promoted bone tissue formation in a rat calvarial bone defect after 4 and 8 weeks of healing. The fabricated MXene/PVDF ferroelectric nanocomposite membranes show a biomimetic microenvironment with a sustainable electric potential and optimal 3D topographical structure, providing an innovative and well-suited strategy for application in bone regeneration.
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Affiliation(s)
- Yu Fu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Si Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Zeru Feng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Lirong Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Xiaoqing Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Hua Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
| | - Anchun Mo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, 14th 3 sect of Renmin South Road, Chengdu610041, China
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Frydrych M, Sztorch B, Brząkalski D, Kozera R, Konieczna R, Osiecki T, Przekop RE. Silsesquioxane-Doped Electrospun Nanofibrillar Membranes for Separation Systems. Polymers (Basel) 2022; 14:polym14173569. [PMID: 36080643 PMCID: PMC9460418 DOI: 10.3390/polym14173569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, a series of cage siloxanes (CS), e.g., three polyhedral oligomeric silsesquioxanes (SSQs) and one spherosilicate (SS) derivative, were applied as functional additives for the preparation of poly(lactic acid)-based (PLA) nanofibrillar membranes with an electrospinning technique utilizing an efficient spinning wire electrode setup. The impact of the additives’ structure, chemistry, and electrospinning parameters on the obtained materials’ morphology (scanning electron microscopy) and physicochemical (thermogravimetry, differential scanning calorimetry, contact angle analysis, air flow analysis) properties is discussed. It is presented that applying organosilicon additives may extend the already tuneable properties of the membranes produced by electrospinning performed under different conditions and that they enable to obtain nanofibres of smaller diameter, which in turn increases the membrane porosity. Furthermore, the solvent-assisted electrospinning method allowed for unparalleled mixing of the PLA matrix with the CS additives, as no traces of free additives were visible on the membranes by scanning electron microscopy (SEM) imaging. The resulting membranes can be utilized as filter materials.
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Affiliation(s)
- Miłosz Frydrych
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland
| | - Bogna Sztorch
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland
| | - Dariusz Brząkalski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland
| | - Rafał Kozera
- Faculty of Material Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland
| | - Roksana Konieczna
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland
| | - Tomasz Osiecki
- Department of Mechanical Engineering, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Robert E. Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland
- Correspondence:
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Xia G, Song B, Fang J. Electrical Stimulation Enabled via Electrospun Piezoelectric Polymeric Nanofibers for Tissue Regeneration. Research (Wash D C) 2022; 2022:9896274. [PMID: 36061820 PMCID: PMC9394050 DOI: 10.34133/2022/9896274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022] Open
Abstract
Electrical stimulation has demonstrated great effectiveness in the modulation of cell fate in vitro and regeneration therapy in vivo. Conventionally, the employment of electrical signal comes with the electrodes, battery, and connectors in an invasive fashion. This tedious procedure and possible infection hinder the translation of electrical stimulation technologies in regenerative therapy. Given electromechanical coupling and flexibility, piezoelectric polymers can overcome these limitations as they can serve as a self-powered stimulator via scavenging mechanical force from the organism and external stimuli wirelessly. Wireless electrical cue mediated by electrospun piezoelectric polymeric nanofibers constitutes a promising paradigm allowing the generation of localized electrical stimulation both in a noninvasive manner and at cell level. Recently, numerous studies based on electrospun piezoelectric nanofibers have been carried out in electrically regenerative therapy. In this review, brief introduction of piezoelectric polymer and electrospinning technology is elucidated first. Afterward, we highlight the activating strategies (e.g., cell traction, physiological activity, and ultrasound) of piezoelectric stimulation and the interaction of piezoelectric cue with nonelectrically/electrically excitable cells in regeneration medicine. Then, quantitative comparison of the electrical stimulation effects using various activating strategies on specific cell behavior and various cell types is outlined. Followingly, this review explores the present challenges in electrospun nanofiber-based piezoelectric stimulation for regeneration therapy and summarizes the methodologies which may be contributed to future efforts in this field for the reality of this technology in the clinical scene. In the end, a summary of this review and future perspectives toward electrospun nanofiber-based piezoelectric stimulation in tissue regeneration are elucidated.
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Affiliation(s)
- Guangbo Xia
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
| | - Beibei Song
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
| | - Jian Fang
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
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Samadi A, Salati MA, Safari A, Jouyandeh M, Barani M, Singh Chauhan NP, Golab EG, Zarrintaj P, Kar S, Seidi F, Hejna A, Saeb MR. Comparative review of piezoelectric biomaterials approach for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1555-1594. [PMID: 35604896 DOI: 10.1080/09205063.2022.2065409] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 06/15/2023]
Abstract
Bone as a minerals' reservoir and rigid tissue of the body generating red and white blood cells supports various organs. Although the self-regeneration property of bone, it cannot regenerate spontaneously in severe damages and still remains as a challenging issue. Tissue engineering offers several techniques for regenerating damaged bones, where various biomaterials are examined to fabricate scaffolds for bone repair. Piezoelectric characteristic plays a crucial role in repairing and regenerating damaged bone by mimicking the bone niche behavior. Piezoelectric biomaterials show significant potential for bone tissue engineering. Herein we try to have a comparative review on piezoelectric and non-piezoelectric biomaterials used in bone tissue engineering, classified them, and discussed their effects on implanted cells and manufacturing techniques. Especially, Polyvinylidene fluoride (PVDF) and its composites are the most practically used piezoelectric biomaterials for bone regeneration. PVDF and its composites have been summarized and discussed to repair damaged bone tissues.
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Affiliation(s)
- Ali Samadi
- Department of Polymer Engineering, Faculty of Engineering, Urmia University, Urmia, Iran
| | | | - Amin Safari
- Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
| | - Maryam Jouyandeh
- Center of Excellent in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Mahmood Barani
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman 7616913555, Iran
| | - Narendra Pal Singh Chauhan
- Department of Chemistry, Faculty of Science, Bhupal Nobles' University, Udaipur 313002, Rajasthan, India
| | - Elias Ghaleh Golab
- Department of Petroleum Engineering, Omidiyeh Branch, Islamic Azad University, Iran
| | - Payam Zarrintaj
- Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, MT 59812, USA
| | - Saptarshi Kar
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Aleksander Hejna
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk, Poland
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk, Poland
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Gao ZR, Feng YZ, Zhao YQ, Zhao J, Zhou YH, Ye Q, Chen Y, Tan L, Zhang SH, Feng Y, Hu J, Ou-Yang ZY, Dusenge MA, Guo Y. Traditional Chinese medicine promotes bone regeneration in bone tissue engineering. Chin Med 2022; 17:86. [PMID: 35858928 PMCID: PMC9297608 DOI: 10.1186/s13020-022-00640-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/30/2022] [Indexed: 11/10/2022] Open
Abstract
Bone tissue engineering (BTE) is a promising method for the repair of difficult-to-heal bone tissue damage by providing three-dimensional structures for cell attachment, proliferation, and differentiation. Traditional Chinese medicine (TCM) has been introduced as an effective global medical program by the World Health Organization, comprising intricate components, and promoting bone regeneration by regulating multiple mechanisms and targets. This study outlines the potential therapeutic capabilities of TCM combined with BTE in bone regeneration. The effective active components promoting bone regeneration can be generally divided into flavonoids, alkaloids, glycosides, terpenoids, and polyphenols, among others. The chemical structures of the monomers, their sources, efficacy, and mechanisms are described. We summarize the use of compounds and medicinal parts of TCM to stimulate bone regeneration. Finally, the limitations and prospects of applying TCM in BTE are introduced, providing a direction for further development of novel and potential TCM.
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Affiliation(s)
- Zheng-Rong Gao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yun-Zhi Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ya-Qiong Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Jie Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ying-Hui Zhou
- Department of Endocrinology and Metabolism, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Ye
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yun Chen
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Li Tan
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Shao-Hui Zhang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yao Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Jing Hu
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ze-Yue Ou-Yang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Marie Aimee Dusenge
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China.
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7
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Raja IS, Preeth DR, Vedhanayagam M, Hyon SH, Lim D, Kim B, Rajalakshmi S, Han DW. Polyphenols-loaded electrospun nanofibers in bone tissue engineering and regeneration. Biomater Res 2021; 25:29. [PMID: 34563260 PMCID: PMC8466400 DOI: 10.1186/s40824-021-00229-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 08/30/2021] [Indexed: 01/27/2023] Open
Abstract
Bone is a complex structure with unique cellular and molecular process in its formation. Bone tissue regeneration is a well-organized and routine process at the cellular and molecular level in humans through the activation of biochemical pathways and protein expression. Though many forms of biomaterials have been applied for bone tissue regeneration, electrospun nanofibrous scaffolds have attracted more attention among researchers with their physicochemical properties such as tensile strength, porosity, and biocompatibility. When drugs, antibiotics, or functional nanoparticles are taken as additives to the nanofiber, its efficacy towards the application gets increased. Polyphenol is a versatile green/phytochemical small molecule playing a vital role in several biomedical applications, including bone tissue regeneration. When polyphenols are incorporated as additives to the nanofibrous scaffold, their combined properties enhance cell attachment, proliferation, and differentiation in bone tissue defect. The present review describes bone biology encompassing the composition and function of bone tissue cells and exemplifies the series of biological processes associated with bone tissue regeneration. We have highlighted the molecular mechanism of bioactive polyphenols involved in bone tissue regeneration and specified the advantage of electrospun nanofiber as a wound healing scaffold. As the polyphenols contribute to wound healing with their antioxidant and antimicrobial properties, we have compiled a list of polyphenols studied, thus far, for bone tissue regeneration along with their in vitro and in vivo experimental biological results and salient observations. Finally, we have elaborated on the importance of polyphenol-loaded electrospun nanofiber in bone tissue regeneration and discussed the possible challenges and future directions in this field.
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Affiliation(s)
| | - Desingh Raj Preeth
- Chemical Biology and Nanobiotechnology Laboratory, AU-KBC Research Centre, Anna University, MIT Campus, Chromepet, Chennai, 600 044, India
| | | | | | - Dohyung Lim
- Department of Mechanical Engineering, Sejong University, Seoul, 05006, South Korea
| | - Bongju Kim
- Dental Life Science Research Institute / Innovation Research & Support Center for Dental Science, Seoul National University Dental Hospital, Seoul, 03080, South Korea.
| | - Subramaniyam Rajalakshmi
- Chemical Biology and Nanobiotechnology Laboratory, AU-KBC Research Centre, Anna University, MIT Campus, Chromepet, Chennai, 600 044, India.
| | - Dong-Wook Han
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, South Korea. .,Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, South Korea.
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Mokhtari F, Azimi B, Salehi M, Hashemikia S, Danti S. Recent advances of polymer-based piezoelectric composites for biomedical applications. J Mech Behav Biomed Mater 2021; 122:104669. [PMID: 34280866 DOI: 10.1016/j.jmbbm.2021.104669] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/19/2021] [Accepted: 06/27/2021] [Indexed: 02/07/2023]
Abstract
Over the past decades, electronics have become central to many aspects of biomedicine and wearable device technologies as a promising personalized healthcare platform. Lead-free piezoelectric materials for converting mechanical into electrical energy through piezoelectric transduction are of significant value in a diverse range of technological applications. Organic piezoelectric biomaterials have attracted widespread attention as the functional materials in the biomedical devices due to their advantages of excellent biocompatibility. They include synthetic and biological polymers. Many biopolymers have been discovered to possess piezoelectricity in an appreciable amount, however their investigation is still preliminary. Due to their piezoelectric properties, better known synthetic fluorinated polymers have been intensively investigated and applied in biomedical applications including controlled drug delivery systems, tissue engineering, microfluidic and artificial muscle actuators, among others. Piezoelectric polymers, especially poly (vinylidene fluoride) (PVDF) and its copolymers are increasingly receiving interest as smart biomaterials due to their ability to convert physiological movements to electrical signals when in a controllable and reproducible manner. Despite possessing the greatest piezoelectric coefficients among all piezoelectric polymers, it is often desirable to increase the electrical outputs. The most promising routes toward significant improvements in the piezoelectric response and energy-harvesting performance of such materials is loading them with various inorganic nanofillers and/or applying some modification during the fabrication process. This paper offers a comprehensive review of the principles, properties, and applications of organic piezoelectric biomaterials (polymers and polymer/ceramic composites) with special attention on PVDF-based polymers and their composites in sensors, drug delivery and tissue engineering. Subsequently focuses on the most common fabrication routes to produce piezoelectric scaffolds, tissue and sensors which is electrospinning process. Promising upcoming strategies and new piezoelectric materials and fabrication techniques for these applications are presented to enable a future integration among these applications.
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Affiliation(s)
- Fatemeh Mokhtari
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Maryam Salehi
- Department of Civil Engineering, The University of Memphis, Memphis, TN, USA
| | - Samaneh Hashemikia
- Faculty of Textile Engineering, Urmia University of Technology, Urmia, Iran
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA.
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Montoya C, Du Y, Gianforcaro AL, Orrego S, Yang M, Lelkes PI. On the road to smart biomaterials for bone research: definitions, concepts, advances, and outlook. Bone Res 2021; 9:12. [PMID: 33574225 PMCID: PMC7878740 DOI: 10.1038/s41413-020-00131-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 01/31/2023] Open
Abstract
The demand for biomaterials that promote the repair, replacement, or restoration of hard and soft tissues continues to grow as the population ages. Traditionally, smart biomaterials have been thought as those that respond to stimuli. However, the continuous evolution of the field warrants a fresh look at the concept of smartness of biomaterials. This review presents a redefinition of the term "Smart Biomaterial" and discusses recent advances in and applications of smart biomaterials for hard tissue restoration and regeneration. To clarify the use of the term "smart biomaterials", we propose four degrees of smartness according to the level of interaction of the biomaterials with the bio-environment and the biological/cellular responses they elicit, defining these materials as inert, active, responsive, and autonomous. Then, we present an up-to-date survey of applications of smart biomaterials for hard tissues, based on the materials' responses (external and internal stimuli) and their use as immune-modulatory biomaterials. Finally, we discuss the limitations and obstacles to the translation from basic research (bench) to clinical utilization that is required for the development of clinically relevant applications of these technologies.
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Affiliation(s)
- Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
| | - Yu Du
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Guangdong Provincial Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Anthony L Gianforcaro
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Maobin Yang
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Peter I Lelkes
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA.
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA.
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10
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Castro Coelho S, Nogueiro Estevinho B, Rocha F. Encapsulation in food industry with emerging electrohydrodynamic techniques: Electrospinning and electrospraying - A review. Food Chem 2020; 339:127850. [PMID: 32861932 DOI: 10.1016/j.foodchem.2020.127850] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 07/20/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023]
Abstract
Nowadays the world population has been more conscious about healthy food products based on bioactive ingredients in order to protect against diseases and to develop healthy diets. Emerging electrohydrodynamic techniques have been object of interest in the scientific community as well as in the industry. In fact, electrospinning and electrospraying methods are promising techniques to fabricate delivery vehicles. These vehicles present structural and functional benefits for encapsulation of bioactive ingredients. They can be used in several food and nutraceutical matrices, protecting the ingredients from environmental conditions. They can also enhance biomolecules bioavailability and controlled release, at the same time that improve the product's shelf life. This review provides the recent state of art for electrospinning/electrospraying techniques. It highlights the crucial parameters that influence these techniques. Further, the recent studies of vitamins encapsulation for applications in functional foods and nutraceuticals fields are summarized. Electrosprayed particles/electrospun fibres are easily produced and present suitable physico-chemical characteristics to encapsulate bioactives to improve the functional foods.
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Affiliation(s)
- Sílvia Castro Coelho
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Berta Nogueiro Estevinho
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Fernando Rocha
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Orkwis JA, Wolf AK, Shahid SM, Smith C, Esfandiari L, Harris GM. Development of a Piezoelectric PVDF-TrFE Fibrous Scaffold to Guide Cell Adhesion, Proliferation, and Alignment. Macromol Biosci 2020; 20:e2000197. [PMID: 32691517 DOI: 10.1002/mabi.202000197] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/28/2020] [Indexed: 12/20/2022]
Abstract
Severe peripheral nervous system injuries currently hold limited therapeutic solutions. Existing clinical techniques such as autografts, allografts, and newer nerve guidance conduits have shown variable outcomes in functional recovery, adverse immune responses, and in some cases low or minimal availability. This can be attributed in part to the lack of chemical, physical, and electrical cues directing both nerve guidance and regeneration. To address this pressing clinical issue, electrospun nanofibers and microfibers composed of piezoelectric polyvinylidene flouride-triflouroethylene (PVDF-TrFE) have been introduced as an alternative template for tissue engineered biomaterials, specifically as it pertains to their relevance in soft tissue and nerve repair. Here, biocompatible scaffolds of PVDF-TrFE are fabricated and their ability to generate an electrical response to mechanical deformations and produce a suitable regenerative microenvironment is examined. It is determined that 20% (w/v) PVDF-TrFE in (6:4) dimethyl formamide (DMF):acetone solvent maintains a desirable piezoelectric coefficient and the proper physical and electrical characteristics for tissue regeneration. Further, it is concluded that scaffolds of varying thickness promoted the adhesion and alignment of Schwann cells and fibroblasts. This work offers a prelude to further advancements in nanofibrous technology and a promising outlook for alternative, autologous remedies to peripheral nerve damage.
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Affiliation(s)
- Jacob A Orkwis
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Ann K Wolf
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Syed M Shahid
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Corinne Smith
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Leyla Esfandiari
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, 45221, USA.,Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Greg M Harris
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA.,Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA.,Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
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Novel Unsaturated Polyester Nanocomposites via Hybrid 3D POSS-Modified Graphene Oxide Reinforcement: Electro-Technical Application Perspective. NANOMATERIALS 2020; 10:nano10020260. [PMID: 32028588 PMCID: PMC7075121 DOI: 10.3390/nano10020260] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/26/2020] [Accepted: 01/31/2020] [Indexed: 12/17/2022]
Abstract
The latest trends in technologies has shifted the focus to developing innovative methods for comprehensive property enhancement of the polymer composites with facile and undemanding experimental techniques. This work reports an elementary technique to fabricate high-performance unsaturated polyester-based nanocomposites. It focuses on the interactive effect of polyhedral oligomeric silsesquioxanes (POSS)-functionalized graphene oxide (GO) within the unsaturated polymermatrix. The hybrid framework of POSS-functionalized graphene oxide has been configured via peptide bonding between the aminopropyl isobutyl POSS and graphene oxide. The synergistic effect of POSS and graphene oxide paved the way for a mechanism to inculcate a hybrid framework within the unsaturated polyester (UP) via in situ polymerization to develop UP/GO-POSS nanocomposites. The surface-appended POSS within the graphene oxide boosted its dispersion in the UP matrix, furnishing an enhancement in tensile strength of the UP/GO-POSS composites by 61.9%, thermal decomposition temperature (10% mass loss) by 69.8 °C and electrical conductivity by 108 S/m, in contrast to pure UP. In particular, the homogenous influence of the POSS-modified GO could be vindicated in the surging of the limiting oxygen index (%) in the as-prepared nanocomposites. The inclusive property amelioration vindicates the use of fabricated nanocomposites as high-performance nanomaterials in electrotechnical applications.
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Hanifah MFR, Jaafar J, Othman M, Ismail A, Rahman M, Yusof N, Aziz F. Electro-spun of novel PVDF-Pt-Pd/RGO-CeO2 composite nanofibers as the high potential of robust anode catalyst in direct methanol fuel cell: Fabrication and characterization. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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