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Strangis G, Labardi M, Gallone G, Milazzo M, Capaccioli S, Forli F, Cinelli P, Berrettini S, Seggiani M, Danti S, Parchi P. 3D Printed Piezoelectric BaTiO 3/Polyhydroxybutyrate Nanocomposite Scaffolds for Bone Tissue Engineering. Bioengineering (Basel) 2024; 11:193. [PMID: 38391679 PMCID: PMC10886384 DOI: 10.3390/bioengineering11020193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
Bone defects are a significant health problem worldwide. Novel treatment approaches in the tissue engineering field rely on the use of biomaterial scaffolds to stimulate and guide the regeneration of damaged tissue that cannot repair or regrow spontaneously. This work aimed at developing and characterizing new piezoelectric scaffolds to provide electric bio-signals naturally present in bone and vascular tissues. Mixing and extrusion were used to obtain nanocomposites made of polyhydroxybutyrate (PHB) as a matrix and barium titanate (BaTiO3) nanoparticles as a filler, at BaTiO3/PHB compositions of 5/95, 10/90, 15/85 and 20/80 (w/w%). The morphological, thermal, mechanical and piezoelectric properties of the nanocomposites were studied. Scanning electron microscopy analysis showed good nanoparticle dispersion within the polymer matrix. Considerable increases in the Young's modulus, compressive strength and the piezoelectric coefficient d31 were observed with increasing BaTiO3 content, with d31 = 37 pm/V in 20/80 (w/w%) BaTiO3/PHB. 3D printing was used to produce porous cubic-shaped scaffolds using a 90° lay-down pattern, with pore size ranging in 0.60-0.77 mm and good mechanical stability. Biodegradation tests conducted for 8 weeks in saline solution at 37 °C showed low mass loss (∼4%) for 3D printed scaffolds. The results obtained in terms of piezoelectric, mechanical and chemical properties of the nanocomposite provide a new promising strategy for vascularized bone tissue engineering.
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Affiliation(s)
- Giovanna Strangis
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
| | - Massimiliano Labardi
- Institute for Chemical and Physical Processes (IPCF), National Research Council (CNR), Pisa Research Area, Via Moruzzi 1, 56124 Pisa, Italy
| | - Giuseppe Gallone
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
| | - Mario Milazzo
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
| | - Simone Capaccioli
- Institute for Chemical and Physical Processes (IPCF), National Research Council (CNR), Pisa Research Area, Via Moruzzi 1, 56124 Pisa, Italy
- Department of Physics "Enrico Fermi", University of Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy
| | - Francesca Forli
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, 56126 Pisa, Italy
| | - Patrizia Cinelli
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Institute for Chemical and Physical Processes (IPCF), National Research Council (CNR), Pisa Research Area, Via Moruzzi 1, 56124 Pisa, Italy
| | - Stefano Berrettini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, 56126 Pisa, Italy
| | - Maurizia Seggiani
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Institute for Chemical and Physical Processes (IPCF), National Research Council (CNR), Pisa Research Area, Via Moruzzi 1, 56124 Pisa, Italy
| | - Paolo Parchi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy
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Wang N, Wang H, Weng D, Wang Y, Yu L, Wang F, Zhang T, Liu J, He Z. Nanomaterials for small diameter vascular grafts: overview and outlook. NANOSCALE ADVANCES 2023; 5:6751-6767. [PMID: 38059025 PMCID: PMC10696638 DOI: 10.1039/d3na00666b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/05/2023] [Indexed: 12/08/2023]
Abstract
Small-diameter vascular grafts (SDVGs) cannot meet current clinical demands owing to their suboptimal long-term patency rate. Various materials have been employed to address this issue, including nanomaterials (NMs), which have demonstrated exceptional capabilities and promising application potentials. In this review, the utilization of NMs in different forms, including nanoparticles, nanofibers, and nanofilms, in the SDVG field is discussed, and future perspectives for the development of NM-loading SDVGs are highlighted. It is expected that this review will provide helpful information to scholars in the innovative interdiscipline of cardiovascular disease treatment and NM.
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Affiliation(s)
- Nuoxin Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Haoyuan Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Zunyi Medical University Zunyi 563006 Guizhou China
- The Second Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Dong Weng
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Yanyang Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Limei Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Feng Wang
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Zunyi Medical University Zunyi 563006 Guizhou China
- The Second Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Cardiovascular Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004 Guizhou China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Juan Liu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Zhixu He
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Pediatrics, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
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Liu W, Wang X. Recent Advances of Nanogenerator Technology for Cardiovascular Sensing and Monitoring. NANO ENERGY 2023; 117:108910. [PMID: 39183759 PMCID: PMC11343574 DOI: 10.1016/j.nanoen.2023.108910] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Cardiovascular sensing and monitoring is a widely used function in cardiovascular devices. Nowadays, achieving desired flexibility, wearability and implantability becomes a major design goal for the advancement of this family of devices. As an emerging technology, nanogenerator (NG) offers an intriguing promise for replacing the battery, an essential obstacle toward tissue-like soft electronics. This article reviews most recent advancements in NG technology for advanced cardiovascular sensing and monitoring. Based on the application targets, the discuss covers implantable NGs on hearts, implantable NGs for blood vessel grafts and patches, and wearable NGs with various sensing functions. The applications of NGs as a power source and as an electromechanical sensing element are both discussed. At the end, current challenges in this direction and future research perspectives are elaborated. This emerging and impactful application direction reviewed in this article is expected to inspire many new research and commercialization opportunities in the field of NG technology.
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Affiliation(s)
- Wenjian Liu
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
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Adhami M, Martin NK, Maguire C, Courtenay AJ, Donnelly RF, Domínguez-Robles J, Larrañeta E. Drug loaded implantable devices to treat cardiovascular disease. Expert Opin Drug Deliv 2023; 20:507-522. [PMID: 36924328 DOI: 10.1080/17425247.2023.2190580] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
INTRODUCTION It is widely acknowledged that cardiovascular diseases (CVDs) continue to be the leading cause of death globally. Furthermore, CVDs are the leading cause of diminished quality of life for patients, frequently as a result of their progressive deterioration. Medical implants that release drugs into the body are active implants that do more than just provide mechanical support; they also have a therapeutic role. Primarily, this is achieved through the controlled release of active pharmaceutical ingredients (API) at the implementation site. AREAS COVERED In this review, the authors discuss drug-eluting stents, drug-eluting vascular grafts, and drug-eluting cardiac patches with the aim of providing a broad overview of the three most common types of cardiac implant. EXPERT OPINION Drug eluting implants are an ideal alternative to traditional drug delivery because they allow for accurate drug release, local drug delivery to the target tissue, and minimise the adverse side effects associated with systemic administration. Despite the fact that there are still challenges that need to be addressed, the ever-evolving new technologies are making the fabrication of drug eluting implants a rewarding therapeutic endeavour with the possibility for even greater advances.
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Affiliation(s)
| | | | | | - Aaron J Courtenay
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, UK
| | | | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, UK.,Department of Pharmacy and Pharmaceutical Technology, University of Seville, Seville, Spain
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Bakhtar LJ, Abdoos H, Rashidi S. A review on fabrication and in vivo applications of piezoelectric nanocomposites for energy harvesting. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Foffa I, Losi P, Quaranta P, Cara A, Al Kayal T, D'Acunto M, Presciuttini G, Pistello M, Soldani G. A Copper nanoparticles-based polymeric spray coating: Nanoshield against Sars-Cov-2. J Appl Biomater Funct Mater 2022; 20:22808000221076326. [PMID: 35611488 DOI: 10.1177/22808000221076326] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Face masks are an effective protection tool to prevent bacterial and viral transmission. However, commercial face masks contain filters made of materials that are not capable of inactivating either SARS-CoV-2. In this regard, we report the development of an antiviral coating of polyurethane and Copper nanoparticles on a face mask filter fabricated with a spray technology that is capable of inactivating more than 99% of SARS-CoV-2 particles in 30 min of contact.
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Affiliation(s)
- Ilenia Foffa
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Paola Losi
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Paola Quaranta
- Retrovirus Center and Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Alice Cara
- Retrovirus Center and Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Tamer Al Kayal
- Institute of Clinical Physiology, National Research Council, Massa, Italy
| | - Mario D'Acunto
- Institute of Biophysics, National Research Council, Pisa, Italy
| | | | - Mauro Pistello
- Retrovirus Center and Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.,Pisa University Hospital, Pisa, Italy
| | - Giorgio Soldani
- Institute of Clinical Physiology, National Research Council, Massa, Italy
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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: 17] [Impact Index Per Article: 5.7] [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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Zhang B, Xu Y, Ma S, Wang L, Liu C, Xu W, Shi J, Qiao W, Yang H. Small-diameter polyurethane vascular graft with high strength and excellent compliance. J Mech Behav Biomed Mater 2021; 121:104614. [PMID: 34091151 DOI: 10.1016/j.jmbbm.2021.104614] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 11/30/2022]
Abstract
In this study, a polyurethane vascular graft with excellent strength and compliance for clinical application was designed and fabricated by preparing three small-diameter vascular graft layers via the textile techniques of wet spinning and knitting. The polyurethane filament that was fabricated by wet spinning formed the inner layer. The polyurethane tubular fabric was used as the middle layer. The outer layer was prepared by spraying polyurethane solution. The three layers of the polyurethane vascular graft have uniform wall thickness, high strength, excellent compliance, and good puncture resistance compared with clinical poly(ethylene terephthalate) (PET) and expanded polytetrafluoroethylene (ePTFE) vascular graft. Therefore, these layers can have potential clinical applications in the replacement of the conventional artificial vascular graft prepared from PET and ePTFE.
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Affiliation(s)
- Baocheng Zhang
- Department of Orthopaedics, General Hospital of Central Theater Command of PLA, Wuhan, 430070, PR China
| | - Yuan Xu
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China
| | - Sitian Ma
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China; College of Material Science and Engineering, Wuhan Textile University, Wuhan, 430200, PR China
| | - Linfeng Wang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China; College of Material Science and Engineering, Wuhan Textile University, Wuhan, 430200, PR China
| | - Changjun Liu
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China; College of Material Science and Engineering, Wuhan Textile University, Wuhan, 430200, PR China
| | - Weilin Xu
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China
| | - Jiawei Shi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, PR China
| | - Weihua Qiao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, PR China.
| | - Hongjun Yang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China; College of Material Science and Engineering, Wuhan Textile University, Wuhan, 430200, PR China.
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Kuźmińska A, Kwarta D, Ciach T, Butruk-Raszeja BA. Cylindrical Polyurethane Scaffold Fabricated Using the Phase Inversion Method: Influence of Process Parameters on Scaffolds' Morphology and Mechanical Properties. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2977. [PMID: 34072853 PMCID: PMC8198356 DOI: 10.3390/ma14112977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022]
Abstract
This work presents a method of obtaining cylindrical polymer structures with a given diameter (approx. 5 mm) using the phase inversion technique. As part of the work, the influence of process parameters (polymer hardness, polymer solution concentration, the composition of the non-solvent solution, process time) on the scaffolds' morphology was investigated. Additionally, the influence of the addition of porogen on the scaffold's mechanical properties was analyzed. It has been shown that the use of a 20% polymer solution of medium hardness (ChronoFlex C45D) and carrying out the process for 24 h in 0:100 water/ethanol leads to the achievement of repeatable structures with adequate flexibility. Among the three types of porogens tested (NaCl, hexane, polyvinyl alcohol), the most favorable results were obtained for 10% polyvinyl alcohol (PVA). The addition of PVA increases the range of pore diameters and the value of the mean pore diameter (9.6 ± 3.2 vs. 15.2 ± 6.4) while reducing the elasticity of the structure (Young modulus = 3.6 ± 1.5 MPa vs. 9.7 ± 4.3 MPa).
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Affiliation(s)
- Aleksandra Kuźmińska
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
| | - Dominika Kwarta
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
| | - Tomasz Ciach
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Beata A. Butruk-Raszeja
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
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Trucco D, Vannozzi L, Teblum E, Telkhozhayeva M, Nessim GD, Affatato S, Al-Haddad H, Lisignoli G, Ricotti L. Graphene Oxide-Doped Gellan Gum-PEGDA Bilayered Hydrogel Mimicking the Mechanical and Lubrication Properties of Articular Cartilage. Adv Healthc Mater 2021; 10:e2001434. [PMID: 33586352 DOI: 10.1002/adhm.202001434] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/28/2020] [Indexed: 12/15/2022]
Abstract
Articular cartilage (AC) is a specialized connective tissue able to provide a low-friction gliding surface supporting shock-absorption, reducing stresses, and guaranteeing wear-resistance thanks to its structure and mechanical and lubrication properties. Being an avascular tissue, AC has a limited ability to heal defects. Nowadays, conventional strategies show several limitations, which results in ineffective restoration of chondral defects. Several tissue engineering approaches have been proposed to restore the AC's native properties without reproducing its mechanical and lubrication properties yet. This work reports the fabrication of a bilayered structure made of gellan gum (GG) and poly (ethylene glycol) diacrylate (PEGDA), able to mimic the mechanical and lubrication features of both AC superficial and deep zones. Through appropriate combinations of GG and PEGDA, cartilage Young's modulus is effectively mimicked for both zones. Graphene oxide is used as a dopant agent for the superficial hydrogel layer, demonstrating a lower friction than the nondoped counterpart. The bilayered hydrogel's antiwear properties are confirmed by using a knee simulator, following ISO 14243. Finally, in vitro tests with human chondrocytes confirm the absence of cytotoxicity effects. The results shown in this paper open the way to a multilayered synthetic injectable or surgically implantable filler for restoring AC defects.
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Affiliation(s)
- Diego Trucco
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
- IRCSS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Lorenzo Vannozzi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| | - Eti Teblum
- Department of Chemistry, Bar-Ilan University, Ramat Gan, 52900, Israel
- Bar Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan, 52900, Israel
| | - Madina Telkhozhayeva
- Department of Chemistry, Bar-Ilan University, Ramat Gan, 52900, Israel
- Bar Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan, 52900, Israel
| | - Gilbert Daniel Nessim
- Department of Chemistry, Bar-Ilan University, Ramat Gan, 52900, Israel
- Bar Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan, 52900, Israel
| | - Saverio Affatato
- IRCSS Istituto Ortopedico Rizzoli, Laboratorio Tecnologie Biomediche, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Hind Al-Haddad
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| | - Gina Lisignoli
- IRCSS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
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11
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Chen J, Zhang X, Millican R, Sherwood J, Martin S, Jo H, Yoon YS, Brott BC, Jun HW. Recent advances in nanomaterials for therapy and diagnosis for atherosclerosis. Adv Drug Deliv Rev 2021; 170:142-199. [PMID: 33428994 PMCID: PMC7981266 DOI: 10.1016/j.addr.2021.01.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/02/2021] [Accepted: 01/03/2021] [Indexed: 12/18/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease driven by lipid accumulation in arteries, leading to narrowing and thrombosis. It affects the heart, brain, and peripheral vessels and is the leading cause of mortality in the United States. Researchers have strived to design nanomaterials of various functions, ranging from non-invasive imaging contrast agents, targeted therapeutic delivery systems to multifunctional nanoagents able to target, diagnose, and treat atherosclerosis. Therefore, this review aims to summarize recent progress (2017-now) in the development of nanomaterials and their applications to improve atherosclerosis diagnosis and therapy during the preclinical and clinical stages of the disease.
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Affiliation(s)
- Jun Chen
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Xixi Zhang
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | | | | | - Sean Martin
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hanjoong Jo
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States; Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA, United States
| | - Young-Sup Yoon
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Brigitta C Brott
- Division of Cardiovascular Disease, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ho-Wook Jun
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States.
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Biochar as an Effective Filler of Carbon Fiber Reinforced Bio-Epoxy Composites. Processes (Basel) 2020. [DOI: 10.3390/pr8060724] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The goal of this work was to investigate the effect of the biochar additive (2.5; 5; 10 wt.%) on the properties of carbon fiber-reinforced bio-epoxy composites. The morphology of the composites was monitored by scanning electron microscopy (SEM), and the thermomechanical properties by dynamic mechanical thermal analysis (DMTA). Additionally, mechanical properties such as impact strength, flexural strength andtensile strength, as well as the thermal stability and degradation kinetics of these composites were evaluated. It was found that the introduction of biochar into the epoxy matrix improved the mechanical and thermal properties of carbon fiber-reinforced composites.
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