1
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Sogore T, Guo M, Sun N, Jiang D, Shen M, Ding T. Microbiological and chemical hazards in cultured meat and methods for their detection. Compr Rev Food Sci Food Saf 2024; 23:e13392. [PMID: 38865212 DOI: 10.1111/1541-4337.13392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/23/2024] [Accepted: 05/19/2024] [Indexed: 06/14/2024]
Abstract
Cultured meat, which involves growing meat in a laboratory rather than breeding animals, offers potential benefits in terms of sustainability, health, and animal welfare compared to conventional meat production. However, the cultured meat production process involves several stages, each with potential hazards requiring careful monitoring and control. Microbial contamination risks exist in the initial cell collection from source animals and the surrounding environment. During cell proliferation, hazards may include chemical residues from media components such as antibiotics and growth factors, as well as microbial issues from improper bioreactor sterilization. In the differentiation stage where cells become muscle tissue, potential hazards include residues from scaffolding materials, microcarriers, and media components. Final maturation and harvesting stages risk environmental contamination from nonsterile conditions, equipment, or worker handling if proper aseptic conditions are not maintained. This review examines the key microbiological and chemical hazards that must be monitored and controlled during the manufacturing process for cultured meats. It describes some conventional and emerging novel techniques that could be applied for the detection of microbial and chemical hazards in cultured meat. The review also outlines the current evolving regulatory landscape around cultured meat and explains how thorough detection and characterization of microbiological and chemical hazards through advanced analytical techniques can provide crucial data to help develop robust, evidence-based food safety regulations specifically tailored for the cultured meat industry. Implementing new digital food safety methods is recommended for further research on the sensitive and effective detection of microbiological and chemical hazards in cultured meat.
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Affiliation(s)
- Tahirou Sogore
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Meimei Guo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Na Sun
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Donglei Jiang
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Mofei Shen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Zhongyuan Institute, Zhejiang University, Zhengzhou, China
| | - Tian Ding
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, China
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2
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Ang EWJ, Djordjevic I, Solic I, Goh CY, Steele TWJ. Tougher Bioadhesives through Dual Stimulation Strategies. Adv Healthc Mater 2024; 13:e2303666. [PMID: 38431774 DOI: 10.1002/adhm.202303666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Carbene-based bioadhesives have favourable attributes for tissue adhesion, including non-specific bonding to wet and dry tissues, but suffer from relatively weak fracture strength after photocuring. Light irradiation of carbene-precursor (diazirine) also creates inert side products that are absent under thermal activation. Herein, a dual activation method combines light irradiation at elevated temperatures for the evaluation of diazirine depletion and effects on cohesive properties. A customized photo/thermal-rheometer evaluates viscoelastic properties, correlated to the kinetics of carbene:diazoalkane ratios via 19F NMR). The latter exploits the sensitive -CF3 functional group to determine joule-based light/temperature kinetics on trifluoroaryl diazirine consumption. The combination of heat and photoactivation produced bioadhesives that are 3× tougher compared to control. Dual thermal/light irradiation may be a strategy to improve viscoelastic dissipation and toughness of photo-activated adhesive resins.
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Affiliation(s)
- Elwin W J Ang
- Nanyang Environment and Water Research Institute, Interdisciplinary Graduate School, Nanyang Technological University, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ivan Djordjevic
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ivan Solic
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chen Yee Goh
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Terry W J Steele
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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3
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Moghaddam A, Bahrami M, Mirzadeh M, Khatami M, Simorgh S, Chimehrad M, Kruppke B, Bagher Z, Mehrabani D, Khonakdar HA. Recent trends in bone tissue engineering: a review of materials, methods, and structures. Biomed Mater 2024; 19:042007. [PMID: 38636500 DOI: 10.1088/1748-605x/ad407d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 04/18/2024] [Indexed: 04/20/2024]
Abstract
Bone tissue engineering (BTE) provides the treatment possibility for segmental long bone defects that are currently an orthopedic dilemma. This review explains different strategies, from biological, material, and preparation points of view, such as using different stem cells, ceramics, and metals, and their corresponding properties for BTE applications. In addition, factors such as porosity, surface chemistry, hydrophilicity and degradation behavior that affect scaffold success are introduced. Besides, the most widely used production methods that result in porous materials are discussed. Gene delivery and secretome-based therapies are also introduced as a new generation of therapies. This review outlines the positive results and important limitations remaining in the clinical application of novel BTE materials and methods for segmental defects.
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Affiliation(s)
| | - Mehran Bahrami
- Department of Mechanical Engineering and Mechanics, Lehigh University, 27 Memorial Dr W, Bethlehem, PA 18015, United States of America
| | | | - Mehrdad Khatami
- Iran Polymer and Petrochemical Institute (IPPI), Tehran 14965-115, Iran
| | - Sara Simorgh
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Chimehrad
- Department of Mechanical & Aerospace Engineering, College of Engineering & Computer Science, University of Central Florida, Orlando, FL, United States of America
| | - Benjamin Kruppke
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, 01069 Dresden, Germany
| | - Zohreh Bagher
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Davood Mehrabani
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71345-1744, Iran
| | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute (IPPI), Tehran 14965-115, Iran
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, 01069 Dresden, Germany
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Agrawal P, Tiwari A, Chowdhury SK, Vohra M, Gour A, Waghmare N, Bhutani U, Kamalnath S, Sangwan B, Rajput J, Raj R, Rajendran NP, Kamath AV, Haddadin R, Chandru A, Sangwan VS, Bhowmick T. Kuragel: A biomimetic hydrogel scaffold designed to promote corneal regeneration. iScience 2024; 27:109641. [PMID: 38646166 PMCID: PMC11031829 DOI: 10.1016/j.isci.2024.109641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/30/2024] [Accepted: 03/26/2024] [Indexed: 04/23/2024] Open
Abstract
Cornea-related injuries are the most common cause of blindness worldwide. Transplantation remains the primary approach for addressing corneal blindness, though the demand for donor corneas outmatches the supply by millions. Tissue adhesives employed to seal corneal wounds have shown inefficient healing and incomplete vision restoration. We have developed a biodegradable hydrogel - Kuragel, with the ability to promote corneal regeneration. Functionalized gelatin and hyaluronic acid form photo-crosslinkable hydrogel with transparency and compressive modulus similar to healthy human cornea. Kuragel composition was tuned to achieve sufficient adhesive strength for sutureless integration to host tissue, with minimal swelling post-administration. Studies in the New Zealand rabbit mechanical injury model affecting corneal epithelium and stroma demonstrate that Kuragel efficiently promotes re-epithelialization within 1 month of administration, while stroma and sub-basal nerve plexus regenerate within 3 months. We propose Kuragel as a regenerative treatment for patients suffering from corneal defects including thinning, by restoration of transparency and thickness.
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Affiliation(s)
| | - Anil Tiwari
- Pandorum Technologies Pvt., Ltd, Bangalore, India
- Dr. Shroff’s Charity Eye Hospital, New Delhi, India
| | | | - Mehak Vohra
- Pandorum Technologies Pvt., Ltd, Bangalore, India
| | - Abha Gour
- Pandorum Technologies Pvt., Ltd, Bangalore, India
- Dr. Shroff’s Charity Eye Hospital, New Delhi, India
| | | | | | - S. Kamalnath
- Pandorum Technologies Pvt., Ltd, Bangalore, India
| | | | - Jyoti Rajput
- Pandorum Technologies Pvt., Ltd, Bangalore, India
| | - Ritu Raj
- Pandorum Technologies Pvt., Ltd, Bangalore, India
| | | | | | - Ramez Haddadin
- Feinberg School of Medicine Northwestern University, Chicago, IL, USA
| | - Arun Chandru
- Pandorum Technologies Pvt., Ltd, Bangalore, India
| | | | - Tuhin Bhowmick
- Pandorum Technologies Pvt., Ltd, Bangalore, India
- Pandorum International Inc, San Francisco, CA, USA
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Yao S, Yang Y, Li C, Yang K, Song X, Li C, Cao Z, Zhao H, Yu X, Wang X, Wang LN. Axon-like aligned conductive CNT/GelMA hydrogel fibers combined with electrical stimulation for spinal cord injury recovery. Bioact Mater 2024; 35:534-548. [PMID: 38414842 PMCID: PMC10897856 DOI: 10.1016/j.bioactmat.2024.01.021] [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: 08/03/2023] [Revised: 12/18/2023] [Accepted: 01/19/2024] [Indexed: 02/29/2024] Open
Abstract
Rehabilitation and regenerative medicine are two promising approaches for spinal cord injury (SCI) recovery, but their combination has been limited. Conductive biomaterials could bridge regenerative scaffolds with electrical stimulation by inducing axon regeneration and supporting physiological electrical signal transmission. Here, we developed aligned conductive hydrogel fibers by incorporating carbon nanotubes (CNTs) into methacrylate acylated gelatin (GelMA) hydrogel via rotating liquid bath electrospinning. The electrospun CNT/GelMA hydrogel fibers mimicked the micro-scale aligned structure, conductivity, and soft mechanical properties of neural axons. For in vitro studies, CNT/GelMA hydrogel fibers supported PC12 cell proliferation and aligned adhesion, which was enhanced by electrical stimulation (ES). Similarly, the combination of aligned CNT/GelMA hydrogel fibers and ES promoted neuronal differentiation and axon-like neurite sprouting in neural stem cells (NSCs). Furthermore, CNT/GelMA hydrogel fibers were transplanted into a T9 transection rat spinal cord injury model for in vivo studies. The results showed that the incorporating CNTs could remain at the injury site with the GelMA fibers biodegraded and improve the conductivity of regenerative tissue. The aligned structure of the hydrogel could induce the neural fibers regeneration, and the ES enhanced the remyelination and axonal regeneration. Behavioral assessments and electrophysiological results suggest that the combination of aligned CNT/GelMA hydrogel fibers and ES could significantly restore motor function in rats. This study demonstrates that conductive aligned CNT/GelMA hydrogel fibers can not only induce neural regeneration as a scaffold but also support ESto promote spinal cord injury recovery. The conductive hydrogel fibers enable merging regenerative medicine and rehabilitation, showing great potential for satisfactory locomotor recovery after SCI.
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Affiliation(s)
- Shenglian Yao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yongdong Yang
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Hai Yun Cang, Beijing, 100700, China
| | - Chenyu Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Kaitan Yang
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Hai Yun Cang, Beijing, 100700, China
| | - Xin Song
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chuanhong Li
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Hai Yun Cang, Beijing, 100700, China
| | - Zheng Cao
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - He Zhao
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Hai Yun Cang, Beijing, 100700, China
| | - Xing Yu
- Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Hai Yun Cang, Beijing, 100700, China
| | - Xiumei Wang
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Lu-Ning Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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6
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Jia B, Huang H, Dong Z, Ren X, Lu Y, Wang W, Zhou S, Zhao X, Guo B. Degradable biomedical elastomers: paving the future of tissue repair and regenerative medicine. Chem Soc Rev 2024; 53:4086-4153. [PMID: 38465517 DOI: 10.1039/d3cs00923h] [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: 03/12/2024]
Abstract
Degradable biomedical elastomers (DBE), characterized by controlled biodegradability, excellent biocompatibility, tailored elasticity, and favorable network design and processability, have become indispensable in tissue repair. This review critically examines the recent advances of biodegradable elastomers for tissue repair, focusing mainly on degradation mechanisms and evaluation, synthesis and crosslinking methods, microstructure design, processing techniques, and tissue repair applications. The review explores the material composition and cross-linking methods of elastomers used in tissue repair, addressing chemistry-related challenges and structural design considerations. In addition, this review focuses on the processing methods of two- and three-dimensional structures of elastomers, and systematically discusses the contribution of processing methods such as solvent casting, electrostatic spinning, and three-/four-dimensional printing of DBE. Furthermore, we describe recent advances in tissue repair using DBE, and include advances achieved in regenerating different tissues, including nerves, tendons, muscle, cardiac, and bone, highlighting their efficacy and versatility. The review concludes by discussing the current challenges in material selection, biodegradation, bioactivation, and manufacturing in tissue repair, and suggests future research directions. This concise yet comprehensive analysis aims to provide valuable insights and technical guidance for advances in DBE for tissue engineering.
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Affiliation(s)
- Ben Jia
- School of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Heyuan Huang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Zhicheng Dong
- School of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiaoyang Ren
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Yanyan Lu
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Wenzhi Wang
- School of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Shaowen Zhou
- Department of Periodontology, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xin Zhao
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
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Karamzadeh V, Shen ML, Ravanbakhsh H, Sohrabi-Kashani A, Okhovatian S, Savoji H, Radisic M, Juncker D. High-Resolution Additive Manufacturing of a Biodegradable Elastomer with A Low-Cost LCD 3D Printer. Adv Healthc Mater 2024; 13:e2303708. [PMID: 37990819 DOI: 10.1002/adhm.202303708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/11/2023] [Indexed: 11/23/2023]
Abstract
Artificial organs and organs-on-a-chip (OoC) are of great clinical and scientific interest and have recently been made by additive manufacturing, but depend on, and benefit from, biocompatible, biodegradable, and soft materials. Poly(octamethylene maleate (anhydride) citrate (POMaC) meets these criteria and has gained popularity, and as in principle, it can be photocured and is amenable to vat-photopolymerization (VP) 3D printing, but only low-resolution structures have been produced so far. Here, a VP-POMaC ink is introduced and 3D printing of 80 µm positive features and complex 3D structures is demonstrated using low-cost (≈US$300) liquid-crystal display (LCD) printers. The ink includes POMaC, a diluent and porogen additive to reduce viscosity within the range of VP, and a crosslinker to speed up reaction kinetics. The mechanical properties of the cured ink are tuned to match the elastic moduli of different tissues simply by varying the porogen concentration. The biocompatibility is assessed by cell culture which yielded 80% viability and the potential for tissue engineering illustrated with a 3D-printed gyroid seeded with cells. VP-POMaC and low-cost LCD printers make the additive manufacturing of high resolution, elastomeric, and biodegradable constructs widely accessible, paving the way for a myriad of applications in tissue engineering and 3D cell culture as demonstrated here, and possibly in OoC, implants, wearables, and soft robotics.
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Affiliation(s)
- Vahid Karamzadeh
- Biomedical Engineering Department, McGill University, Montreal, QC, H3A 0G4, Canada
- McGill Genome Centre, McGill University, Montreal, QC, H3A 0G4, Canada
| | - Molly L Shen
- Biomedical Engineering Department, McGill University, Montreal, QC, H3A 0G4, Canada
- McGill Genome Centre, McGill University, Montreal, QC, H3A 0G4, Canada
| | - Hossein Ravanbakhsh
- Biomedical Engineering Department, McGill University, Montreal, QC, H3A 0G4, Canada
- McGill Genome Centre, McGill University, Montreal, QC, H3A 0G4, Canada
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Ahmad Sohrabi-Kashani
- Biomedical Engineering Department, McGill University, Montreal, QC, H3A 0G4, Canada
- McGill Genome Centre, McGill University, Montreal, QC, H3A 0G4, Canada
| | - Sargol Okhovatian
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, M1C 1A4, Canada
| | - Houman Savoji
- Institute of Biomedical Engineering, Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC, H3C 3J7, Canada
- Research Center, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC, H3T 1C5, Canada
- Montreal TransMedTech Institute, Montreal, QC, H3C 3A7, Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, M1C 1A4, Canada
| | - David Juncker
- Biomedical Engineering Department, McGill University, Montreal, QC, H3A 0G4, Canada
- McGill Genome Centre, McGill University, Montreal, QC, H3A 0G4, Canada
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Deshmukh K, Bit A. Numerical analysis of scaffold degradation in cryogenic environment: impact of cell migration and cell apoptosis. Biomed Phys Eng Express 2024; 10:035010. [PMID: 38447212 DOI: 10.1088/2057-1976/ad30cc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 03/06/2024] [Indexed: 03/08/2024]
Abstract
The analysis of degradation in the presence of cell death and migration is a critical aspect of research in various biological fields, such as tissue engineering, regenerative medicine, and disease pathology. In present study, numerical study of degradation of scaffold were performed in present of cells, cell apoptosis and cell migration. A poly electrolyte complex (PEC) silk fibroin scaffold was used for degradation study. Degradation study in the presence of cells and migration were performed at fixed pH concentration 7.2. Similarly, degradation study of scaffold were performed at different pH cell apoptosis. A transient analysis of scaffold was evaluated in COMSOL 5.5 in presence of cryogenic temperature at different temperature gradient. The parameters; temperature, stress, strain tensor and deformation gradient associated with the degradation of polyelectrolyte complex scaffold were evaluated. Result shows that in both geometries minimum temperature had been achieved as 230.051 K at point P4 in series view and parallel view and at a point P3 for cell migration study for -5 k min-1and -1 k min-1, respectively. The maximum stress had been generated for 5.57 × 107N m-2for the temperature gradient of -2 K min-1at T cycle in the case of cell migration study. In contrast in series view the maximum stress 2.9 × 107 N m-2were observed at P4 which was higher as compare to P3. Similarly, for a parallel view, maximum stress (3.93 × 107 N m-2) was obtained for point P3. It had been observed that the maximum strain tensor 5.21 × 10-3, 5.15 × 10-3and 5.26 × 10-3was generated in series view at 230 k on a point P3 for - 1, -2 and -5 K min-1, respectively. Similarly, the maximum strain tensor 8.16 × 10-3, 8.09 × 10-3and 8.09 × 10-3was generated in parallel view at 230 k on a point P3 for -1, -2 and -5 K min-1, respectively. In the presence of cells, at a point P4 for temperature gradient of -1 and -2 K min-1, it had been closed to the scaffold wall, which had a different temperature profile than the point P3 and scaffold comes to the contact with the cells. The analysis of PEC scaffold degradation in the presence of cells, including cell apoptosis and migration, offers significant insights into the relationship between scaffold properties, cell behaviour, and tissue regeneration.
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Affiliation(s)
- Khemraj Deshmukh
- Department of Biomedical Engineering, Parul Institute of Technology (Parul University), Vadodra, Gujraat , India
| | - Arindam Bit
- Department of Biomedical Engineering, National Institute of Technology, Raipur, India
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Wang L, Li Y, Yang J, Wu Q, Liang S, Liu Z. Poly(Propylene Carbonate)-Based Biodegradable and Environment-Friendly Materials for Biomedical Applications. Int J Mol Sci 2024; 25:2938. [PMID: 38474185 DOI: 10.3390/ijms25052938] [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: 01/22/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Poly(propylene carbonate) (PPC) is an emerging "carbon fixation" polymer that holds the potential to become a "biomaterial of choice" in healthcare owing to its good biocompatibility, tunable biodegradability and safe degradation products. However, the commercialization and wide application of PPC as a biomedical material are still hindered by its narrow processing temperature range, poor mechanical properties and hydrophobic nature. Over recent decades, several physical, chemical and biological modifications of PPC have been achieved by introducing biocompatible polymers, inorganic ions or small molecules, which can endow PPC with better cytocompatibility and desirable biodegradability, and thus enable various applications. Indeed, a variety of PPC-based degradable materials have been used in medical applications including medical masks, surgical gowns, drug carriers, wound dressings, implants and scaffolds. In this review, the molecular structure, catalysts for synthesis, properties and modifications of PPC are discussed. Recent biomedical applications of PPC-based biomaterials are highlighted and summarized.
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Affiliation(s)
- Li Wang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Yumin Li
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Jingde Yang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Qianqian Wu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Song Liang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Zhenning Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
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10
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Yuan Q, Bao B, Li M, Li L, Zhang X, Tang Y. Bioactive Conjugated Polymer-Based Biodegradable 3D Bionic Scaffolds for Facilitating Bone Defect Repair. Adv Healthc Mater 2024; 13:e2302818. [PMID: 37989510 DOI: 10.1002/adhm.202302818] [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: 08/24/2023] [Revised: 11/19/2023] [Indexed: 11/23/2023]
Abstract
Bone defect regeneration is one of the great clinical challenges. Suitable bioactive composite scaffolds with high biocompatibility, robust new-bone formation capability and degradability are still required. This work designs and synthesizes an unprecedented bioactive conjugated polymer PT-C3 -NH2 , demonstrating low cytotoxicity, cell proliferation/migration-promoting effect, as well as inducing cell differentiation, namely regulating angiogenesis and osteogenesis to MC3T3-E1 cells. PT-C3 -NH2 is incorporated into polylactic acid-glycolic acid (PLGA) scaffolds, which is decorated with caffeic acid (CA)-modified gelatin (Gel), aiming to improve the surface water-wettability of PLGA and also facilitate to the linkage of conjugated polymer through catechol chemistry. A 3D composite scaffold PLGA@GC-PT is then generated. This scaffold demonstrates excellent bionic structures with pore size of 50-300 µm and feasible biodegradation ability. Moreover, it also exhibites robust osteogenic effect to promote osteoblast proliferation and differentiation in vitro, thus enabling the rapid regeneration of bone defects in vivo. Overall, this study provides a new bioactive factor and feasible fabrication approach of biomimetic scaffold for bone regeneration.
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Affiliation(s)
- Qiong Yuan
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Benkai Bao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Meiqi Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Ling Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Xinyi Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Yanli Tang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
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11
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Wang Y, Chen S, Bao S, Yao L, Wen Z, Xu L, Chen X, Guo S, Pang H, Zhou Y, Zhou P. Deciphering the fibrotic process: mechanism of chronic radiation skin injury fibrosis. Front Immunol 2024; 15:1338922. [PMID: 38426100 PMCID: PMC10902513 DOI: 10.3389/fimmu.2024.1338922] [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: 11/16/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
This review explores the mechanisms of chronic radiation-induced skin injury fibrosis, focusing on the transition from acute radiation damage to a chronic fibrotic state. It reviewed the cellular and molecular responses of the skin to radiation, highlighting the role of myofibroblasts and the significant impact of Transforming Growth Factor-beta (TGF-β) in promoting fibroblast-to-myofibroblast transformation. The review delves into the epigenetic regulation of fibrotic gene expression, the contribution of extracellular matrix proteins to the fibrotic microenvironment, and the regulation of the immune system in the context of fibrosis. Additionally, it discusses the potential of biomaterials and artificial intelligence in medical research to advance the understanding and treatment of radiation-induced skin fibrosis, suggesting future directions involving bioinformatics and personalized therapeutic strategies to enhance patient quality of life.
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Affiliation(s)
- Yiren Wang
- School of Nursing, Southwest Medical University, Luzhou, China
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
| | - Shouying Chen
- School of Nursing, Southwest Medical University, Luzhou, China
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
| | - Shuilan Bao
- School of Nursing, Southwest Medical University, Luzhou, China
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
| | - Li Yao
- School of Nursing, Southwest Medical University, Luzhou, China
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
| | - Zhongjian Wen
- School of Nursing, Southwest Medical University, Luzhou, China
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
| | - Lixia Xu
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Xiaoman Chen
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Shengmin Guo
- Department of Nursing, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Haowen Pang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yun Zhou
- School of Medical Information and Engineering, Southwest Medical University, Luzhou, China
| | - Ping Zhou
- Wound Healing Basic Research and Clinical Application Key Laboratory of Luzhou, Southwest Medical University, Luzhou, China
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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12
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Klar RM, Cox J, Raja N, Lohfeld S. The 3D-McMap Guidelines: Three-Dimensional Multicomposite Microsphere Adaptive Printing. Biomimetics (Basel) 2024; 9:94. [PMID: 38392141 PMCID: PMC10886723 DOI: 10.3390/biomimetics9020094] [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: 12/18/2023] [Revised: 01/18/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
Microspheres, synthesized from diverse natural or synthetic polymers, are readily utilized in biomedical tissue engineering to improve the healing of various tissues. Their ability to encapsulate growth factors, therapeutics, and natural biomolecules, which can aid tissue regeneration, makes microspheres invaluable for future clinical therapies. While microsphere-supplemented scaffolds have been investigated, a pure microsphere scaffold with an optimized architecture has been challenging to create via 3D printing methods due to issues that prevent consistent deposition of microsphere-based materials and their ability to maintain the shape of the 3D-printed structure. Utilizing the extrusion printing process, we established a methodology that not only allows the creation of large microsphere scaffolds but also multicomposite matrices into which cells, growth factors, and therapeutics encapsulated in microspheres can be directly deposited during the printing process. Our 3D-McMap method provides some critical guidelines for issues with scaffold shape fidelity during and after printing. Carefully timed breaks, minuscule drying steps, and adjustments to extrusion parameters generated an evenly layered large microsphere scaffold that retained its internal architecture. Such scaffolds are superior to other microsphere-containing scaffolds, as they can release biomolecules in a highly controlled spatiotemporal manner. This capability permits us to study cell responses to the delivered signals to develop scaffolds that precisely modulate new tissue formation.
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Affiliation(s)
- Roland M Klar
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - James Cox
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Naren Raja
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Stefan Lohfeld
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
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13
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Hou X, Sitthisang S, Song B, Xu X, Jonhson W, Tan Y, Yodmuang S, He C. Entropically Toughened Robust Biodegradable Polymer Blends and Composites for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2912-2920. [PMID: 38174974 DOI: 10.1021/acsami.3c14716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Biodegradable polymers and composites are promising candidates for biomedical implants in tissue engineering. However, state-of-the-art composite scaffolds suffer from a strength-toughness dilemma due to poor interfacial adhesion and filler dispersion. In this work, we propose a facile and scalable strategy to fabricate strong and tough biocomposite scaffolds through interfacial toughening. The immiscible biopolymer matrix is compatible by the direct incorporation of a third polymer. Densely entangled polymer chains lead to massive crazes and global shear yields under tension. Weak chemical interaction and high-shear melt processing create nanoscale dispersion of nanofillers within the matrix. The resultant ternary blends and composites exhibit an 11-fold increase in toughness without compromising stiffness and strength. At 70% porosity, three-dimensional (3D)-printed composite scaffolds demonstrate high compressive properties comparable to those of cancellous bones. In vitro cell culture on the scaffolds demonstrates not only good cell viability but also effective osteogenic differentiation of human mesenchymal stem cells. Our findings present a widely applicable strategy to develop high-performance biocomposite materials for tissue regeneration.
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Affiliation(s)
- Xunan Hou
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Sonthikan Sitthisang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, 1873 Rama IV Road, Pathum Wan, Bangkok 10330, Thailand
| | - Bangjie Song
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Xin Xu
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Win Jonhson
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Yonghao Tan
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Supansa Yodmuang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, 1873 Rama IV Road, Pathum Wan, Bangkok 10330, Thailand
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok 10330 Thailand
| | - Chaobin He
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
- Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Innovis 138635, Singapore
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14
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Cheng YJ, Wu TH, Tseng YS, Chen WF. Development of hybrid 3D printing approach for fabrication of high-strength hydroxyapatite bioscaffold using FDM and DLP techniques. Biofabrication 2024; 16:025003. [PMID: 38226849 DOI: 10.1088/1758-5090/ad1b20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/04/2024] [Indexed: 01/17/2024]
Abstract
This study develops a hybrid 3D printing approach that combines fused deposition modeling (FDM) and digital light processing (DLP) techniques for fabricating bioscaffolds, enabling rapid mass production. The FDM technique fabricates outer molds, while DLP prints struts for creating penetrating channels. By combining these components, hydroxyapatite (HA) bioscaffolds with different channel sizes (600, 800, and 1000μm) and designed porosities (10%, 12.5%, and 15%) are fabricated using the slurry casting method with centrifugal vacuum defoaming for significant densification. This innovative method produces high-strength bioscaffolds with an overall porosity of 32%-37%, featuring tightly bound HA grains and a layered surface structure, resulting in remarkable cell viability and adhesion, along with minimal degradation rates and superior calcium phosphate deposition. The HA scaffolds show hardness ranging from 1.43 to 1.87 GPa, with increasing compressive strength as the designed porosity and channel size decrease. Compared to human cancellous bone at a similar porosity range of 30%-40%, exhibiting compressive strengths of 13-70 MPa and moduli of 0.8-8 GPa, the HA scaffolds demonstrate robust strengths ranging from 40 to 73 MPa, paired with lower moduli of 0.7-1.23 GPa. These attributes make them well-suited for cancellous bone repair, effectively mitigating issues like stress shielding and bone atrophy.
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Affiliation(s)
- Yu-Jui Cheng
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Tsung-Han Wu
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Department of Orthopaedics, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Yu-Sheng Tseng
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Wen-Fan Chen
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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15
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Lei X, Yang B, Chen J, Yang F, Tang J, Li J, Zhao Q, Zhang J, Li J, Li Y, Zuo Y. Biodegradable Polyurethane Scaffolds in Regeneration Therapy: Characterization and In Vivo Real-Time Degradation Monitoring by Grafted Fluorescent Tracer. ACS APPLIED MATERIALS & INTERFACES 2024; 16:111-126. [PMID: 38112686 DOI: 10.1021/acsami.3c13187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
There is an urgent need to assess material degradation in situ and in real time for their promising application in regeneration therapy. However, traditional monitoring methods in vitro cannot always profile the complicated behavior in vivo. This study designed and synthesized a new biodegradable polyurethane (PU-P) scaffold with polycaprolactone glycol, isophorone diisocyanate, and l-lysine ethyl ester dihydrochloride. To monitor the degradation process of PU-P, calcein was introduced into the backbone (PU-5) as a chromophore tracing in different sites of the body and undegradable fluorescent scaffold (CPU-5) as the control group. Both PU-P and PU-5 can be enzymatically degraded, and the degradation products are molecularly small and biosafe. Meanwhile, by virtue of calcein anchoring with urethane, polymer chains of PU-5 have maintained the conformational stability and extended the system conjugation, raising a structure-induced emission effect that successfully achieved a significant enhancement in the fluorescence intensity better than pristine calcein. Evidently, unlike the weak fluorescent response of CPU-5, PU-5 and its degradation can be clearly imaged and monitored in real time after implantation in the subcutaneous tissue of nude mice. Meanwhile, the in situ osteogeneration has also been promoted after the two degradable scaffolds have been implanted in the rabbit femoral condyles and degraded with time. To sum up, the strategy of underpinning tracers into degradable polymer chains provides a possible and effective way for real-time monitoring of the degradation process of implants in vivo.
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Affiliation(s)
- Xiaoyu Lei
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Boyuan Yang
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Jie Chen
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Fang Yang
- Radboud Institute for Molecular Life Sciences, Department of Dentistry-Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, Nijmegen 6525EX, The Netherlands
| | - Jiajing Tang
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Jihua Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, People's Republic of China
| | - Qing Zhao
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Jinzheng Zhang
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Jidong Li
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Yubao Li
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Yi Zuo
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
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16
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Bandzerewicz A, Wierzchowski K, Mierzejewska J, Denis P, Gołofit T, Szymczyk-Ziółkowska P, Pilarek M, Gadomska-Gajadhur A. Biological Activity of Poly(1,3-propanediol citrate) Films and Nonwovens: Mechanical, Thermal, Antimicrobial, and Cytotoxicity Studies. Macromol Rapid Commun 2024; 45:e2300452. [PMID: 37838916 DOI: 10.1002/marc.202300452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/10/2023] [Indexed: 10/16/2023]
Abstract
Polymers are of great interest for medical and cosmeceutical applications. The current trend is to combine materials of natural and synthetic origin in order to obtain products with appropriate mechanical strength and good biocompatibility, additionally biodegradable and bioresorbable. Citric acid, being an important metabolite, is an interesting substance for the synthesis of materials for biomedical applications. Due to the high functionality of the molecule, it is commonly used in biomaterials chemistry as a crosslinking agent. Among citric acid-based biopolyesters, poly(1,8-octanediol citrate) is the best known. It shows application potential in soft tissue engineering. This work focuses on a much less studied polyester, poly(1,3-propanediol citrate). Porous and non-porous materials based on the synthesized polyesters are prepared and characterized, including mechanical, thermal, and surface properties, morphology, and degradation. The main focus is on assessing the biocompatibility and antimicrobial properties of the materials.
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Affiliation(s)
- Aleksandra Bandzerewicz
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Street, Warsaw, 00-664, Poland
| | - Kamil Wierzchowski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1 Street, Warsaw, 00-645, Poland
| | - Jolanta Mierzejewska
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Street, Warsaw, 00-664, Poland
| | - Piotr Denis
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5B Street, Warsaw, 02-106, Poland
| | - Tomasz Gołofit
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Street, Warsaw, 00-664, Poland
| | - Patrycja Szymczyk-Ziółkowska
- Centre for Advanced Manufacturing Technologies-Fraunhofer Project Center, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, Wroclaw, 50-371, Poland
| | - Maciej Pilarek
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1 Street, Warsaw, 00-645, Poland
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17
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Widener AE, Roberts A, Phelps EA. Granular Hydrogels for Harnessing the Immune Response. Adv Healthc Mater 2023:e2303005. [PMID: 38145369 DOI: 10.1002/adhm.202303005] [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: 09/08/2023] [Revised: 11/13/2023] [Indexed: 12/26/2023]
Abstract
This review aims to understand the current progress in immune-instructive granular hydrogels and identify the key features used as immunomodulatory strategies. Published work is systematically reviewed and relevant information about granular hydrogels used throughout these studies is collected. The base polymer, microgel generation technique, polymer crosslinking chemistry, particle size and shape, annealing strategy, granular hydrogel stiffness, pore size and void space, degradability, biomolecule presentation, and drug release are cataloged for each work. Several granular hydrogel parameters used for immune modulation: porosity, architecture, bioactivity, drug release, cell delivery, and modularity, are identified. The authors found in this review that porosity is the most significant factor influencing the innate immune response to granular hydrogels, while incorporated bioactivity is more significant in influencing adaptive immune responses. Here, the authors' findings and summarized results from each section are presented and suggestions are made for future studies to better understand the benefits of using immune-instructive granular hydrogels.
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Affiliation(s)
- Adrienne E Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
| | - Abilene Roberts
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
| | - Edward A Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
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18
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Wu Z, Li Q, Wang L, Zhang Y, Liu W, Zhao S, Geng X, Fan Y. A novel biomimetic nanofibrous cardiac tissue engineering scaffold with adjustable mechanical and electrical properties based on poly(glycerol sebacate) and polyaniline. Mater Today Bio 2023; 23:100798. [PMID: 37753375 PMCID: PMC10518490 DOI: 10.1016/j.mtbio.2023.100798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/02/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
Biomaterial tissue engineering scaffolds play a critical role in providing mechanical support, promoting cells growth and proliferation. However, due to the insulation and inappropriate stiffness of most biomaterials, there is an unmet need to engineer a biomimetic nanofibrous cardiac tissue engineering scaffold with tailorable mechanical and electrical properties. Here, we demonstrate for the first time the feasibility to generate a novel type of biocompatible fibrous scaffolds by blending elastic poly(glycerol sebacate) (PGS) and conductive polyaniline (PANI) with the help of a nontoxic carrier polymer, poly (vinyl alcohol) (PVA). Aligned and random PGS/PANI scaffolds are successfully obtained after electrospinning, cross-linking, water and ethanol wash. Incorporating of different concentrations of PANI into PGS fibers, the fibrous sheets show enhanced conductivity and slower degradation rates while maintaining the favorable hemocompatibility. The elastic modulus of the PGS/PANI scaffolds is in the range of 0.65-2.18 MPa under wet conditions, which is similar to that of natural myocardium. All of these fibrous mats show good cell viability and were able to promote adhesion and proliferation of H9c2 cells. Furthermore, the in vivo host responses of both random and aligned scaffolds confirm their good biocompatibility. Therefore, these PGS/PANI scaffolds have great potential for cardiac tissue engineering.
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Affiliation(s)
- Zebin Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Qiao Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- School of Engineering Medicine, Beihang University, Beijing 100083, China
| | - Lizhen Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yang Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Wei Liu
- Department of Cardiology, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
| | - Shudong Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xuezheng Geng
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- School of Engineering Medicine, Beihang University, Beijing 100083, China
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19
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Martínez G, Begines B, Pajuelo E, Vázquez J, Rodriguez-Albelo LM, Cofini D, Torres Y, Alcudia A. Versatile Biodegradable Poly(acrylic acid)-Based Hydrogels Infiltrated in Porous Titanium Implants to Improve the Biofunctional Performance. Biomacromolecules 2023; 24:4743-4758. [PMID: 37677155 PMCID: PMC10646965 DOI: 10.1021/acs.biomac.3c00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/27/2023] [Indexed: 09/09/2023]
Abstract
This research work proposes a synergistic approach to improve implants' performance through the use of porous Ti substrates to reduce the mismatch between Young's modulus of Ti (around 110 GPa) and the cortical bone (20-25 GPa), and the application of a biodegradable, acrylic acid-based polymeric coating to reduce bacterial adhesion and proliferation, and to enhance osseointegration. First, porous commercially pure Ti substrates with different porosities and pore size distributions were fabricated by using space-holder techniques to obtain substrates with improved tribomechanical behavior. On the other hand, a new diacrylate cross-linker containing a reduction-sensitive disulfide bond was synthesized to prepare biodegradable poly(acrylic acid)-based hydrogels with 1, 2, and 4% cross-linker. Finally, after the required characterization, both strategies were implemented, and the combination of 4% cross-linked poly(acrylic acid)-based hydrogel infiltrated in 30 vol % porosity, 100-200 μm average pore size, was revealed as an outstanding choice for enhancing implant performance.
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Affiliation(s)
- Guillermo Martínez
- Departamento
de Química Orgánica y Farmacéutica, Facultad
de Farmacia, Universidad de Sevilla, Seville 41012, Spain
| | - Belén Begines
- Departamento
de Química Orgánica y Farmacéutica, Facultad
de Farmacia, Universidad de Sevilla, Seville 41012, Spain
| | - Eloisa Pajuelo
- Departamento
de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, Seville 41012, Spain
| | - Juan Vázquez
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Sevilla, Seville 41004, Spain
| | - Luisa Marleny Rodriguez-Albelo
- Departamento
de Ingeniería y Ciencia de los Materiales y del Transporte,
Escuela Politécnica Superior, Universidad
de Sevilla, Seville 41011, Spain
| | - Davide Cofini
- Departamento
de Química Orgánica y Farmacéutica, Facultad
de Farmacia, Universidad de Sevilla, Seville 41012, Spain
| | - Yadir Torres
- Departamento
de Ingeniería y Ciencia de los Materiales y del Transporte,
Escuela Politécnica Superior, Universidad
de Sevilla, Seville 41011, Spain
| | - Ana Alcudia
- Departamento
de Química Orgánica y Farmacéutica, Facultad
de Farmacia, Universidad de Sevilla, Seville 41012, Spain
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20
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Zanotti A, Baldino L, Reverchon E. Production of Exopolysaccharide-Based Porous Structures for Biomedical Applications: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2920. [PMID: 37999274 PMCID: PMC10675614 DOI: 10.3390/nano13222920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
Exopolysaccharides, obtained from microorganisms as fermentation products, are interesting candidates for biomedical applications as scaffolds: they are biocompatible, nontoxic, antimicrobial, antitumor materials. To produce exopolysaccharide-based scaffolds, sol-gel technology could be used, which ends with the removal of the liquid phase from the polymeric network (i.e., the drying step). The aim of this review is to point out the most relevant strengths and weaknesses of the different drying techniques, focusing attention on the production of exopolysaccharide-based porous structures. Among these drying processes, supercritical carbon dioxide-assisted drying is the most promising strategy to obtain dried gels to use in the biomedical field: it produces highly porous and lightweight devices with outstanding surface areas and regular microstructure and nanostructure (i.e., aerogels). As a result of the analysis carried out in the present work, it emerged that supercritical technologies should be further explored and applied to the production of exopolysaccharide-based nanostructured scaffolds. Moving research towards this direction, exopolysaccharide utilization could be intensified and extended to the production of high added-value devices.
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Affiliation(s)
| | - Lucia Baldino
- Departement of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (A.Z.); (E.R.)
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21
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Mo F, Zhong S, You T, Lu J, Sun D. Aptamer and DNAzyme-Functionalized Cu-MOF Hybrid Nanozymes for the Monitoring and Management of Bacteria-Infected Wounds. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37921634 DOI: 10.1021/acsami.3c10682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Metal-organic frameworks (MOFs) with peroxidase (POD)-like activity have great potential for combating drug-resistant bacterial infections. However, the use of POD-like activities is severely limited by low oxygen levels and high levels of glutathione (GSH) within the microenvironment of bacterial infection. Herein, G-quadruplex/hemin DNAzyme-aptamer probes and tannic acid-chelated Au nanoparticle (Au-TA)-decorated Cu-based MOF nanosheets (termed GATC) with triple-enzyme activities were developed for visual detection and efficient antibacterial therapy. First, the monometallic MOFs (Cu-ZIF) showed the best catalytic and loading capacity performance compared with the bimetallic MOFs (CoCu-ZIF and ZnCu-ZIF). Then, Cu-MOFs, Au-TA, and DNAzyme improve the POD-like activity to generate more hydroxyl radicals (•OH) to kill bacteria. GATC can bind to bacteria through aptamer recognition, increasing the bacterial surface contact area for efficient antibacterial activity. GATC can decompose H2O2 into O2 to alleviate hypoxia and improve the microenvironment due to its catalase (CAT)-like activity. In addition, GATC exhibited GSH peroxidase-like activity, which can avoid the loss of •OH and result in bacterial death more easily. Compared with previous studies, GATC exhibited extraordinary bactericidal ability at an extremely low dosage of 3 μg/mL against methicillin-resistant Staphylococcus aureus (MRSA). Notably, the GATC-catalyzed chromogenic reaction could accurately monitor the MRSA infection treatment process. Overall, this work could establish a therapeutic platform for the monitoring and management of bacteria-infected wounds.
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Affiliation(s)
- Fayin Mo
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong, China
- Key Specialty of Clinical Pharmacy, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510699, Guangdong, China
| | - Sheng Zhong
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong, China
| | - Tianhui You
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong, China
| | - Jing Lu
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China
| | - Duanping Sun
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong, China
- Key Specialty of Clinical Pharmacy, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510699, Guangdong, China
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22
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Dokuchaeva AA, Mochalova AB, Timchenko TP, Kuznetsova EV, Podolskaya KS, Pashkovskaya OA, Filatova NA, Vaver AA, Zhuravleva IY. Remote Outcomes with Poly-ε-Caprolactone Aortic Grafts in Rats. Polymers (Basel) 2023; 15:4304. [PMID: 37959984 PMCID: PMC10649699 DOI: 10.3390/polym15214304] [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: 09/30/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Poly-ε-caprolactone ((1,7)-polyoxepan-2-one; PCL) is a biodegradable polymer widely used in various fields of bioengineering, but its behavior in long-term studies appears to depend on many conditions, such as application specificity, chemical structure, in vivo test systems, and even environmental conditions in which the construction is exploited in. In this study, we offer an observation of the remote outcomes of PCL tubular grafts for abdominal aorta replacement in an in vivo experiment on a rat model. Adult Wistar rats were implanted with PCL vascular matrices and observed for 180 days. The results of ultrasound diagnostics and X-ray tomography (CBCT) show that the grafts maintained patency for the entire follow-up period without thrombosis, leakage, or interruptions, but different types of tissue reactions were found at this time point. By the day of examination, all the implants revealed a confluent endothelial monolayer covering layers of hyperplastic neointima formed on the luminal surface of the grafts. Foreign body reactions were found in several explants including those without signs of stenosis. Most of the scaffolds showed a pronounced infiltration with fibroblastic cells. All the samples revealed subintimal calcium phosphate deposits. A correlation between chondroid metaplasia in profound cells of neointima and the process of mineralization was supported by immunohistochemical (IHC) staining for S100 proteins and EDS mapping. Microscopy showed that the scaffolds with an intensive inflammatory response or formed fibrotic capsules retain their fibrillar structure even on day 180 after implantation, but matrices infiltrated with viable cells partially save the original fibrillary network. This research highlights the advantages of PCL vascular scaffolds, such as graft permeability, revitalization, and good surgical outcomes. The disadvantages are low biodegradation rates and exceptionally high risks of mineralization and intimal hyperplasia.
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Affiliation(s)
- Anna A. Dokuchaeva
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (A.B.M.); (T.P.T.); (E.V.K.); (K.S.P.); (O.A.P.); (N.A.F.); (A.A.V.); (I.Y.Z.)
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23
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Anitua E, Zalduendo M, Troya M, Tierno R, Alkhraisat MH. Cellular composition modifies the biological properties and stability of platelet rich plasma membranes for tissue engineering. J Biomed Mater Res A 2023; 111:1710-1721. [PMID: 37318048 DOI: 10.1002/jbm.a.37579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 03/03/2023] [Accepted: 05/30/2023] [Indexed: 06/16/2023]
Abstract
Scaffolds should provide structural support for tissue regeneration, allowing their gradual biodegradation and interacting with cells and bioactive molecules to promote remodeling. Thus, the scaffold's intrinsic properties affect cellular processes involved in tissue regeneration, including migration, proliferation, differentiation, and protein synthesis. In this sense, due to its biological effect and clinical potential, Platelet Rich Plasma (PRP) fibrin could be considered a successful scaffold. Given the high variability in commercial PRPs formulations, this research focused on assessing the influence of cellular composition on fibrin membrane stability and remodeling cell activity. The stability and biological effect were evaluated at different time points via D-dimer, type I collagen and elastase quantification in culture media conditioned by Plasma Rich in Growth Factors - Fraction 1 (PRGF-F1), Plasma Rich in Growth Factors - Whole Plasma (PRGF-WP) and Leukocyte-rich Platelet Rich Plasma (L-PRP) membranes, and by gingival fibroblast cells seeded on them, respectively. Ultrastructure of PRP membranes was also evaluated. Histological analyses were performed after 5 and 18 days. Additionally, the effect of fibrin membranes on cell proliferation was determined. According to the results, L-PRP fibrin membranes degradation was complete at the end of the study, while PRGF membranes remained practically unchanged. Considering fibroblast behavior, PRGF membranes, in contrast to L-PRP ones, promoted extracellular matrix biosynthesis at the same time as fibrinolysis and enhanced cell proliferation. In conclusion, leukocytes in PRP fibrin membranes drastically reduce scaffold stability and induce behavioral changes in fibroblasts by reducing their proliferation rate and remodeling ability.
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Affiliation(s)
- Eduardo Anitua
- Regenerative Medicine Laboratory, BTI-Biotechnology Institute, Vitoria, Spain
| | - Mar Zalduendo
- Regenerative Medicine Laboratory, BTI-Biotechnology Institute, Vitoria, Spain
| | - María Troya
- Regenerative Medicine Laboratory, BTI-Biotechnology Institute, Vitoria, Spain
| | - Roberto Tierno
- Regenerative Medicine Laboratory, BTI-Biotechnology Institute, Vitoria, Spain
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24
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Sharifi E, Yousefiasl S, Laderian N, Rabiee N, Makvandi P, Pourmotabed S, Ashrafizadeh M, Familsattarian F, Fang W. Cell-loaded genipin cross-linked collagen/gelatin skin substitute adorned with zinc-doped bioactive glass-ceramic for cutaneous wound regeneration. Int J Biol Macromol 2023; 251:125898. [PMID: 37479201 DOI: 10.1016/j.ijbiomac.2023.125898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
An optimal tissue-engineered dermal substitute should possess biocompatibility and cell adhesion conduction to facilitate fibroblast and keratinocyte infiltration and proliferation, as well as angiogenesis potential to escalate wound healing. Zinc was doped to bioactive glass-ceramic (Zn-BGC) to promote biocompatibility and angiogenesis properties. Zn-BGC was then incorporated into a collagen (Col) and gelatin (Gel) porous scaffold. The bioactive porous bionanocomposite exhibited biocompatibility along with improved cell attachment and proliferation. Scaffolds including Col-Gel/Zn-BGC with or without mouse embryonic fibroblasts were applied on full-thickness skin wounds on the BALB/c mice to assess their wound healing potential in vivo. The results indicated that the biodegradation rate of the Col-Gel/Zn-BGC nanocomposites was comparable to the rate of skin tissue regeneration in vivo. Macroscopic wound healing results showed that Col-Gel/Zn-BGC loaded with mouse embryonic fibroblast possesses the smallest wound size, indicating the fastest healing process. Histopathological evaluations displayed that the optimal wound regeneration was observed in Col-Gel/Zn-BGC nanocomposites loaded with mouse embryonic fibroblasts indicated by epithelialization and angiogenesis; besides the number of fibroblasts and hair follicles was increased. The bioactive nanocomposite scaffold of Col-Gel containing Zn-BGC nanoparticles loaded with mouse embryonic fibroblasts can be employed as a desirable skin substitute to ameliorate cutaneous wound regeneration.
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Affiliation(s)
- Esmaeel Sharifi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Science, 8815713471 Shahrekord, Iran; Cancer Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Satar Yousefiasl
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran 1417614411, Iran.
| | - Nilofar Laderian
- School of Medicine, Shahrekord University of Medical Science, 8815713471 Shahrekord, Iran
| | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Pooyan Makvandi
- School of Engineering, Institute for Bioengineering, The University of Edinburgh, Edinburgh EH9 3JL, UK
| | - Samiramis Pourmotabed
- Department of Emergency Medicine, School of Medicine, Hamadan University of Medical Sciences, 6517838736 Hamadan, Iran
| | - Milad Ashrafizadeh
- Department of General Surgery and Integrated Chinese and Western Medicine, Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong 518060, China; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Fatemeh Familsattarian
- Department of Materials Engineering, Bu-Ali Sina University, P.O.B: 65178-38695, Hamedan, Iran
| | - Wei Fang
- Department of Laser and Aesthetic Medicine, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.
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25
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Haudum S, Strasser P, Teasdale I. Phosphorus and Silicon-Based Macromolecules as Degradable Biomedical Polymers. Macromol Biosci 2023; 23:e2300127. [PMID: 37326117 DOI: 10.1002/mabi.202300127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Indexed: 06/17/2023]
Abstract
Synthetic polymers are indispensable in biomedical applications because they can be fabricated with consistent and reproducible properties, facile scalability, and customizable functionality to perform diverse tasks. However, currently available synthetic polymers have limitations, most notably when timely biodegradation is required. Despite there being, in principle, an entire periodic table to choose from, with the obvious exception of silicones, nearly all known synthetic polymers are combinations of carbon, nitrogen, and oxygen in the main chain. Expanding this to main-group heteroatoms can open the way to novel material properties. Herein the authors report on research to incorporate the chemically versatile and abundant silicon and phosphorus into polymers to induce cleavability into the polymer main chain. Less stable polymers, which degrade in a timely manner in mild biological environments, have considerable potential in biomedical applications. Herein the basic chemistry behind these materials is described and some recent studies into their medical applications are highlighted.
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Affiliation(s)
- Stephan Haudum
- Johannes Kepler University Linz, Altenbergerstrasse 69, Linz, 4040, Austria
| | - Paul Strasser
- Johannes Kepler University Linz, Altenbergerstrasse 69, Linz, 4040, Austria
| | - Ian Teasdale
- Johannes Kepler University Linz, Altenbergerstrasse 69, Linz, 4040, Austria
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26
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Wang M, Mequanint K. Preparation and Microscopic Mechanical Characterization of L-Methionine-Based Polyphosphazene Fibrous Mats for Vascular Tissue Engineering. Pharmaceutics 2023; 15:2546. [PMID: 38004526 PMCID: PMC10674633 DOI: 10.3390/pharmaceutics15112546] [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: 09/25/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
This study investigates the mechanical properties, degradation behavior, and biocompatibility of poly[(α-amino acid ester) phosphazene] electrospun fibers based on the ethyl ester of L-methionine (PαAPz-M), a material with potential applications in tissue engineering. We utilized atomic force microscopy (AFM) to evaluate the fiber mechanical characteristics and calculate its Young's modulus, revealing it to closely mimic the stiffness of a natural extracellular matrix (ECM). We also studied the degradation behavior of PαAPz-M scaffolds over 21 days, showing that they maintain the highly porous structure required for tissue engineering. Further evaluation of mesenchymal multipotent 10T1/2 cell and mesenchymal stem cell (MSC) behavior on the scaffolds demonstrated significant cell viability, proliferation, and successful MSC differentiation into smooth muscle cells. Expression of collagen and elastin by MSCs on the fiber mats highlighted potential ECM formation during scaffold degradation, confirming PαAPz-M as a promising material for vascular tissue engineering.
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Affiliation(s)
| | - Kibret Mequanint
- Department of Chemical & Biochemical Engineering, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5B9, Canada;
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27
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Ivanova E, Fayzullin A, Minaev N, Dolganova I, Serejnikova N, Gafarova E, Tokarev M, Minaeva E, Aleksandrova P, Reshetov I, Timashev P, Shekhter A. Surface Topography of PLA Implants Defines the Outcome of Foreign Body Reaction: An In Vivo Study. Polymers (Basel) 2023; 15:4119. [PMID: 37896364 PMCID: PMC10610271 DOI: 10.3390/polym15204119] [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: 07/27/2023] [Revised: 09/19/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
The formation of a dense fibrous capsule around the foreign body and its contracture is the most common complication of biomaterial implantation. The aim of our research is to find out how the surface of the implant influences the inflammatory and fibrotic reactions in the surrounding tissues. We made three types of implants with a remote surface topography formed of polylactide granules with different diameters: large (100-200 µm), medium (56-100 µm) and small (1-56 µm). We placed these implants in skin pockets in the ears of six chinchilla rabbits. We explanted the implants on the 7th, 14th, 30th and 60th days and performed optical coherence tomography, and histological, immunohistochemical and morphometric studies. We examined 72 samples and compared the composition of immune cell infiltration, vascularization, the thickness of the peri-implant tissues, the severity of fibrotic processes and α-SMA expression in myofibroblasts. We analyzed the scattering coefficient of tissue layers on OCT scans. We found that implants made from large granules induced a milder inflammatory process and slower formation of a connective tissue capsule around the foreign body. Our results prove the importance of assessing the surface texture in order to avoid the formation of capsular contracture after implantation.
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Affiliation(s)
- Elena Ivanova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
- B.V. Petrovsky Russian Research Center of Surgery, 2 Abrikosovskiy Lane, Moscow 119991, Russia
| | - Alexey Fayzullin
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
| | - Nikita Minaev
- Institute of Photon Technologies of FSRC “Crystallography and Photonics” RAS, Troitsk, Moscow 108840, Russia; (N.M.); (E.M.)
| | - Irina Dolganova
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, 2 Osipyan St., Chernogolovka 142432, Russia;
| | - Natalia Serejnikova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
| | - Elvira Gafarova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
| | - Mark Tokarev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
| | - Ekaterina Minaeva
- Institute of Photon Technologies of FSRC “Crystallography and Photonics” RAS, Troitsk, Moscow 108840, Russia; (N.M.); (E.M.)
| | - Polina Aleksandrova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., Moscow 119991, Russia;
| | - Igor Reshetov
- L.L. Levshin Institute of Cluster Oncology, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia;
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
- World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia
| | - Anatoly Shekhter
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya St., Moscow 119991, Russia; (E.I.); (A.F.); (N.S.); (E.G.); (M.T.); (P.T.)
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28
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Cheng X, Li T, Yan L, Jiao Y, Zhang Y, Wang K, Cheng Z, Ma J, Shao L. Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation. SCIENCE ADVANCES 2023; 9:eadh8195. [PMID: 37611103 PMCID: PMC10446487 DOI: 10.1126/sciadv.adh8195] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/21/2023] [Indexed: 08/25/2023]
Abstract
Although membrane technology has attracted considerable attention for oily wastewater treatment, the plastic waste generated from discarded membranes presents an immediate challenge for achieving eco-friendly separation. We designed on-demand biodegradable superhydrophilic membranes composed of polylactic acid nanofibers in conjunction with polyethylene oxide hydrogels using electrospinning technology for ultrafast purification of oily water. Our results showed that the use of the polyethylene oxide hydrogels increased the number of hydrogen bonds formed between the membrane surface and water molecules by 357.6%. This converted hydrophobic membranes into superhydrophilic ones, which prevented membrane fouling and accelerated emulsion penetration through the membranes. The oil-in-water emulsion permeance of our newly designed nanofiber membranes increased by 61.9 times (2.1 × 104 liters per square meter per hour per bar) with separation efficiency >99.6%, which was superior to state-of-the-art membranes. Moreover, the formation of hydrogen bonds was found to accelerate polylactic acid biodegradation into lactic acid by over 30%, offering a promising approach for waste membrane treatment.
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Affiliation(s)
- Xiquan Cheng
- State Key Laboratory of Urban Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P.R. China
- Shandong Sino-European Membrane Technology Research Institute Co. Ltd., Weihai Key Laboratory of Water Treatment and Membrane Technology, Weihai 264209, P.R. China
| | - Tongyu Li
- State Key Laboratory of Urban Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P.R. China
| | - Linlin Yan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Yang Jiao
- State Key Laboratory of Urban Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P.R. China
| | - Yingjie Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P.R. China
- Shandong Sino-European Membrane Technology Research Institute Co. Ltd., Weihai Key Laboratory of Water Treatment and Membrane Technology, Weihai 264209, P.R. China
| | - Kai Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P.R. China
| | - Zhongjun Cheng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, P.R. China
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29
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Liu G, Zou F, He W, Li J, Xie Y, Ma M, Zheng Y. The controlled degradation of bacterial cellulose in simulated physiological environment by immobilization and release of cellulase. Carbohydr Polym 2023; 314:120906. [PMID: 37173043 DOI: 10.1016/j.carbpol.2023.120906] [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: 12/16/2022] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 05/15/2023]
Abstract
Bacterial cellulose (BC) has good network structure, biocompatibility, and excellent mechanical properties, and is widely used in the field of biomaterials. The controllable degradation of BC can further broaden its application. Oxidative modification and cellulases may endow BC with degradability, but these methods inevitably lead to the obvious reduction of its initial mechanical properties and uncontrolled degradation. In this paper, the controllable degradation of BC was realized for the first time by using a new controlled release structure that combines the immobilization and release of cellulase. The immobilized enzyme has higher stability and is gradually released in the simulated physiological environment, and its load can control the hydrolysis rate of BC well. Furthermore, the BC-based membrane prepared by this method retains the favorable physicochemical performance of the original BC, including flexibility and great biocompatibility, and holds good application prospects in drug control release or tissue repair.
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Affiliation(s)
- Guodong Liu
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Faxing Zou
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Wei He
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Junfei Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yajie Xie
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Mengjiao Ma
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China.
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30
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Machková A, Vaňková E, Obrová K, Fürhacker P, Košutová T, Lion T, Hanuš J, Scholtz V. Silver nanoparticles with plasma-polymerized hexamethyldisiloxane coating on 3D printed substrates are non-cytotoxic and effective against respiratory pathogens. Front Microbiol 2023; 14:1217617. [PMID: 37637122 PMCID: PMC10450633 DOI: 10.3389/fmicb.2023.1217617] [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: 05/05/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Due to the emerging resistance of microorganisms and viruses to conventional treatments, the importance of self-disinfecting materials is highly increasing. Such materials could be silver or its nanoparticles (AgNPs), both of which have been studied for their antimicrobial effect. In this study, we compared the biological effects of AgNP coatings with and without a plasma-polymerized hexamethyldisiloxane (ppHMDSO) protective film to smooth silver or copper coatings under three ambient conditions that mimic their potential medical use (dry or wet environments and an environment simulating the human body). The coatings were deposited on 3D printed polylactic acid substrates by DC magnetron sputtering, and their surface morphology was visualized using scanning electron microscopy. Cytotoxicity of the samples was evaluated using human lung epithelial cells A549. Furthermore, antibacterial activity was determined against the Gram-negative pathogenic bacterium Pseudomonas aeruginosa PAO1 and antiviral activity was assessed using human rhinovirus species A/type 2. The obtained results showed that overcoating of AgNPs with ppHMDSO creates the material with antibacterial and antiviral activity and at the same time without a cytotoxic effect for the surrounding tissue cells. These findings suggest that the production of 3D printed substrates coated with a layer of AgNPs-ppHMDSO could have potential applications in the medical field as functional materials.
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Affiliation(s)
- Anna Machková
- Department of Physics and Measurements, Faculty of Chemical Engineering, University of Chemistry and Technology in Prague, Prague, Czechia
| | - Eva Vaňková
- Department of Physics and Measurements, Faculty of Chemical Engineering, University of Chemistry and Technology in Prague, Prague, Czechia
| | - Klára Obrová
- St. Anna Children’s Cancer Research Institute, Vienna, Austria
| | - Paola Fürhacker
- St. Anna Children’s Cancer Research Institute, Vienna, Austria
| | - Tereza Košutová
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
| | - Thomas Lion
- St. Anna Children’s Cancer Research Institute, Vienna, Austria
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Jan Hanuš
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
| | - Vladimír Scholtz
- Department of Physics and Measurements, Faculty of Chemical Engineering, University of Chemistry and Technology in Prague, Prague, Czechia
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31
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Dokuchaeva AA, Vladimirov SV, Borodin VP, Karpova EV, Vaver AA, Shiliaev GE, Chebochakov DS, Kuznetsov VA, Surovtsev NV, Adichtchev SV, Malikov AG, Gulov MA, Zhuravleva IY. Influence of Single-Wall Carbon Nanotube Suspension on the Mechanical Properties of Polymeric Films and Electrospun Scaffolds. Int J Mol Sci 2023; 24:11092. [PMID: 37446270 DOI: 10.3390/ijms241311092] [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: 05/02/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Carbon nanotubes (CNTs) are used in applications ranging from electrical engineering to medical device manufacturing. It is well known that the addition of nanotubes can influence the mechanical properties of various industrial materials, including plastics. Electrospinning is a popular method for fabricating nanomaterials, widely suggested for polymer scaffold manufacturing. In this study, we aimed to describe the influence of single-walled carbon nanotube (SWCNT) suspensions on polymeric poured films and electrospun scaffolds and to investigate their structural and mechanical properties obtained from various compositions. To obtain films and electrospun scaffolds of 8 mm diameter, we used poly-ε-caprolactone (PCL) and poly(cyclohexene carbonate) (PCHC) solutions containing several mass fractions of SWCNT. The samples were characterized using tensile tests, atomic force and scanning electronic microscopy (AFM and SEM). All the studied SWCNT concentrations were shown to decrease the extensibility and strength of electrospun scaffolds, so SWCNT use was considered unsuitable for this technique. The 0.01% mass fraction of SWCNT in PCL films increased the polymer strength, while fractions of 0.03% and more significantly decreased the polymer strength and extensibility compared to the undoped polymer. The PHCH polymeric films showed a similar behavior with an extremum at 0.02% concentration for strength at break.
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Affiliation(s)
- Anna A Dokuchaeva
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Sergey V Vladimirov
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Vsevolod P Borodin
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Elena V Karpova
- Group of Optical Spectrometry, Center of Spectral Investigations, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Andrey A Vaver
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Gleb E Shiliaev
- LLC "Tuball Center NSK", 24 Inzhenernaya St., Novosibirsk 630090, Russia
| | | | - Vasily A Kuznetsov
- I.Ya. Postovsky Insititute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences (IOS UB RAS), S. Kovalevskoy St., 22/20, Yekaterinburg 620108, Russia
| | - Nikolay V Surovtsev
- Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Academician Koptyug Avenue, 1, Novosibirsk 630090, Russia
| | - Sergey V Adichtchev
- Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Academician Koptyug Avenue, 1, Novosibirsk 630090, Russia
| | - Alexander G Malikov
- Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
| | - Mikhail A Gulov
- Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
| | - Irina Y Zhuravleva
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
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Maples MM, Schneider MC, Bryant SJ. Impact of Inter- and Intra-Donor Variability by Age on the Gel-to-Tissue Transition in MMP-Sensitive PEG Hydrogels for Cartilage Regeneration. ACS APPLIED BIO MATERIALS 2023. [PMID: 37367934 DOI: 10.1021/acsabm.3c00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Matrix metalloproteinase (MMP)-sensitive hydrogels are promising for cartilage tissue engineering due to cell-mediated control over hydrogel degradation. However, any variability in MMP, tissue inhibitors of matrix metalloproteinase (TIMP), and/or extracellular matrix (ECM) production among donors will impact neotissue formation in the hydrogels. The goal for this study was to investigate the impact of inter- and intra-donor variability on the hydrogel-to-tissue transition. Transforming growth factor β3 was tethered into the hydrogel to maintain the chondrogenic phenotype and support neocartilage production, allowing the use of chemically defined medium. Bovine chondrocytes were isolated from two donor groups, skeletally immature juvenile and skeletally mature adult donors (inter-donor variability) and three donors within each group (intra-donor group variability). While the hydrogel supported neocartilaginous growth by all donors, donor age impacted MMP, TIMP, and ECM synthesis rates. Of the MMPs and TIMPs studied, MMP-1 and TIMP-1 were the most abundantly produced by all donors. Adult chondrocytes secreted higher levels of MMPs, which was accompanied by higher production of TIMPs. Juvenile chondrocytes exhibited more rapid ECM growth. By day 29, juvenile chondrocytes had surpassed the gel-to-tissue transition. On the contrary, the adult donors had a percolated polymer network indicating that despite higher levels of MMPs the gel-to-transition had not yet been achieved. The intra-donor group variability of MMP, TIMP, and ECM production was higher in adult chondrocytes but did not impact the extent of the gel-to-tissue transition. In summary, age-dependent inter-donor variations in MMPs and TIMPs significantly impact the timing of the gel-to-tissue transition in MMP-sensitive hydrogels.
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Affiliation(s)
- Mollie M Maples
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0596, United States
| | - Margaret C Schneider
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0596, United States
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0596, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80309-0596, United States
- BioFrontiers Institute, University of Colorado, Boulder, Colorado 80309-0596, United States
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Zhang X, Guo Z, Zhu L, Liu Y, Wang H, Jiang Y, Du B, Hu Y. Challenges and chances coexist: A visualized analysis and bibliometric study of research on bioresorbable vascular scaffolds from 2000 to 2022. Medicine (Baltimore) 2023; 102:e33885. [PMID: 37233419 PMCID: PMC10219738 DOI: 10.1097/md.0000000000033885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/09/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Bioresorbable scaffolds (BVS) provide a transient supporting force for blocked vessels and allow them to return to previous physiological characteristics. After verification with twists and turns, it has been acknowledged as an emerging revolution in percutaneous coronary intervention that expresses the current concept of intervention without placement. Through this bibliometric study, we organized the knowledge structure of bioresorbable scaffolds and attempted to predict future research hotspots in this field. METHODS seven thousand sixty-three articles were retrieved from the web of science core collection database from 2000 to 2022. Then, we utilize CiteSpace 6.1.R2, Biblioshiny and VOS viewer 1.6.18 to analyze the data visually. RESULTS First, according to the spatial analysis, the number of annual publications has shown an approximately increasing trend over the past 2 decades. The USA, the People's Republic of China, and GERMANY published the most articles on bioresorbable scaffolds. Second, SERRUYS P ranked first for his most prolific work and highest cited frequency in this domain. Third, the hotspots in this field can be inferred from the keyword distribution; they were the fabrication technique based on tissue engineering; the factors to be optimized for bioresorbable scaffolds, such as mechanical property, degradation, and implantation; and the common adverse effects of bioresorbable scaffolds, such as thrombosis. Most importantly, in terms of burst detection, we could speculate that cutting-edge technology for manufacturing scaffolds represented by 3D printing constitutes the future hotspots in bioresorbable scaffold development. CONCLUSION In the first visualized bibliometric analysis of BVS, we attempt to provide a panoramic view. By enrolling extensive literature, we review the growing trend of BVSs. Since its first introduction, it has been through periods of early prosperity, questioned safety subsequently and the resultantly advanced techniques in recent years. In future, the research should focus on utilizing novel techniques to consummate the manufacturing quality and assure the safety of BVSs.
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Affiliation(s)
- Xiaohan Zhang
- Department of Cardiovascular Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zezhen Guo
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Lihong Zhu
- Department of Cerebrovascular Disease, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yao Liu
- The Second Clinical College, Shanxi University of Chinese Medicine, Shanxi, China
| | - Huan Wang
- Department of Cardiovascular Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuchen Jiang
- Department of Cardiovascular Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bai Du
- Department of Cardiovascular Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuanhui Hu
- Department of Cardiovascular Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Hoque MA, Mahmood N, Ali KM, Sefat E, Huang Y, Petersen E, Harrington S, Fang X, Gluck JM. Development of a Pneumatic-Driven Fiber-Shaped Robot Scaffold for Use as a Complex 3D Dynamic Culture System. Biomimetics (Basel) 2023; 8:biomimetics8020170. [PMID: 37092422 PMCID: PMC10123682 DOI: 10.3390/biomimetics8020170] [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: 03/21/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023] Open
Abstract
Cells can sense and respond to different kinds of continuous mechanical strain in the human body. Mechanical stimulation needs to be included within the in vitro culture system to better mimic the existing complexity of in vivo biological systems. Existing commercial dynamic culture systems are generally two-dimensional (2D) which fail to mimic the three-dimensional (3D) native microenvironment. In this study, a pneumatically driven fiber robot has been developed as a platform for 3D dynamic cell culture. The fiber robot can generate tunable contractions upon stimulation. The surface of the fiber robot is formed by a braiding structure, which provides promising surface contact and adequate space for cell culture. An in-house dynamic stimulation using the fiber robot was set up to maintain NIH3T3 cells in a controlled environment. The biocompatibility of the developed dynamic culture systems was analyzed using LIVE/DEAD™ and alamarBlue™ assays. The results showed that the dynamic culture system was able to support cell proliferation with minimal cytotoxicity similar to static cultures. However, we observed a decrease in cell viability in the case of a high strain rate in dynamic cultures. Differences in cell arrangement and proliferation were observed between braided sleeves made of different materials (nylon and ultra-high molecular weight polyethylene). In summary, a simple and cost-effective 3D dynamic culture system has been proposed, which can be easily implemented to study complex biological phenomena in vitro.
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Affiliation(s)
- Muh Amdadul Hoque
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Nasif Mahmood
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Kiran M Ali
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Eelya Sefat
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Yihan Huang
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Emily Petersen
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Shane Harrington
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Xiaomeng Fang
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
| | - Jessica M Gluck
- Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA
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Hu Y, Ma Y, Liu L, Yu J, Cui J, Ling S, Fan Y. Nanosilk Template-Guided/Induced Construction of Brush-/Flower-like 3D Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 36916656 DOI: 10.1021/acsami.2c20339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Biomaterials with natural hierarchical structures typically exhibit extraordinary properties because of their multilevel structural designs. They offer many templates and models as well as inspiration for material design, particularly for fabricating structure-regulated, performance-enhanced, and function-enriched materials. Biopolymer-based nanocomposites with ingenious nanostructures constructed through ecofriendly and sustainable approaches are highly desirable to meet the multifunctional requirements of developing bioinspired materials. Herein, an all-silk fibroin-based nanocomposite with a brush-like nanostructure was constructed for the first time using a nanotemplate-guided assembly approach in which dissolved silk assembled directly on a silk nanowhisker (SNW) backbone to form peculiar nanobrushes based on the classical micelle model. Three-dimensional spider-like or centipede-like silk nanobrushes (SNBs) were fabricated by varying the SNW backbone length from 0.16 to 6 μm. The branches with average lengths of 32-290 nm were also adjustable. SNBs were further designed to regulate and induce biomineralization of hydroxyapatite (HAP) to form interesting flower-like nanostructures, in which the HAP nanosphere (diameters ∼16 nm) "core" was covered by SNBs with branches extending to form a "shell" (∼101 nm in length). Based on such protein nanotemplate-guided formation of nanoscale structures, practical hollow conduits with remarkable mechanical properties, biocompatibility, shape memory behavior, and bone engineering potential were fabricated. This study inspires the design of polymorphous biopolymer-based nanostructures with enhanced performance at multiple length scales where the weaknesses of individual building blocks are offset.
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Affiliation(s)
- Yanlei Hu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, No. 159 Lonpan Road, Nanjing, Jiangsu 210037, China
| | - Yue Ma
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, No. 159 Lonpan Road, Nanjing, Jiangsu 210037, China
| | - Liang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, No. 159 Lonpan Road, Nanjing, Jiangsu 210037, China
| | - Juan Yu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, No. 159 Lonpan Road, Nanjing, Jiangsu 210037, China
| | - Jing Cui
- School of Physical Science and Technology, ShanghaiTech University, No. 393 Middle Huaxia Road, Shanghai 201210, China
| | - Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, No. 393 Middle Huaxia Road, Shanghai 201210, China
| | - Yimin Fan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, No. 159 Lonpan Road, Nanjing, Jiangsu 210037, China
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Egorikhina MN, Timofeeva LB, Linkova DD, Rubtsova YP, Bugrova ML, Charykova IN, Ryabkov MG, Kobyakova II, Farafontova EA, Aleynik DY. Biocompatibility Study of Hydrogel Biopolymer Scaffold with Encapsulated Mesenchymal Stem Cells. Polymers (Basel) 2023; 15:polym15061337. [PMID: 36987118 PMCID: PMC10052012 DOI: 10.3390/polym15061337] [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: 01/12/2023] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
One of the key and actively developing areas of regenerative medicine is tissue-engineering. There is no doubt that the use of tissue-engineering products can have a significant impact on the efficiency of repair of damaged tissues and organs. However, before being used in clinical practice, tissue-engineering products require thorough preclinical studies to confirm their safety and efficacy, both with in vitro models and in experimental animals. This paper presents preclinical studies of a tissue-engineered construct, based on a hydrogel biopolymer scaffold carrier (consisting of blood plasma cryoprecipitate and collagen) with encapsulated mesenchymal stem cells, to evaluate its biocompatibility in vivo. The results were analyzed using histomorphology and transmission electron microscopy. It was shown that when implanted into animal (rat) tissues, the implants were completely replaced by connective tissue components. We also confirmed that no acute inflammation occurred in response to the scaffold implantation. The observed processes of cell recruitment to the scaffold from the surrounding tissues, the active formation of collagen fibers and the absence of acute inflammation testified that the regeneration process was ongoing in the implantation area. Thus, the presented tissue-engineered construct shows promise for becoming an effective tool for regenerative medicine in the future and may be used, in particular, to repair soft tissues.
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Affiliation(s)
- Marfa N Egorikhina
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Lidia B Timofeeva
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Daria D Linkova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Yulia P Rubtsova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Marina L Bugrova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Irina N Charykova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Maxim G Ryabkov
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Irina I Kobyakova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Ekaterina A Farafontova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Diana Y Aleynik
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
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37
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Zhang F, Tao H, Gluck JM, Wang L, Daneshmand MA, King MW. A textile-reinforced composite vascular graft that modulates macrophage polarization and enhances endothelial cell migration, adhesion and proliferation in vitro. SOFT MATTER 2023; 19:1624-1641. [PMID: 36752696 DOI: 10.1039/d2sm01190e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
At the present time, there is no successful off-the-shelf small-caliber vascular graft (<6 mm) for the repair or bypass of the coronary or carotid arteries. In this study, we engineer a textile-reinforced hydrogel vascular graft. The textile fibers are circularly knitted into a flexible yet robust conduit to serve as the backbone of the composite vascular graft and provide the primary mechanical support. It is embedded in the hydrogel matrix which seals the open structure of the knitted reinforcement and mediates cellular response toward a faster reendothelialization. The mechanical properties of the composite vascular graft, including bursting strength, suture retention strength and radial compliance, significantly surpass the requirement for the vascular graft application and can be adjusted by altering the structure of the textile reinforcement. The addition of hydrogel matrix, on the other hand, improves the survival, adhesion and proliferation of endothelial cells in vitro. The composite vascular graft also enhances macrophage activation and upregulates M1 and M2 related gene expression, which further improves the endothelial cell migration that might favor the reendothelialization of the vascular graft. Taken together, the textile-reinforced hydrogel shows it potential to be a promising scaffold material to fabricate a tissue engineered vascular graft.
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Affiliation(s)
- Fan Zhang
- Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA.
| | - Hui Tao
- College of Textiles, Donghua University, Shanghai, 201620, China
| | - Jessica M Gluck
- Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA.
| | - Lu Wang
- College of Textiles, Donghua University, Shanghai, 201620, China
| | - Mani A Daneshmand
- Department of Surgery, School of Medicine, Emory University, Atlanta, Georgia 30322, USA
| | - Martin W King
- Wilson College of Textiles, North Carolina State University, Raleigh, NC 27606, USA.
- College of Textiles, Donghua University, Shanghai, 201620, China
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38
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Zhang Q, Gao Y, Luo B, Cui Y, Shu S, Chen W, Wang L. Effect of Styrene-Maleic Anhydride Copolymer on Properties of PBST/PLA Blends. Polymers (Basel) 2023; 15:polym15040952. [PMID: 36850235 PMCID: PMC9960150 DOI: 10.3390/polym15040952] [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: 01/19/2023] [Revised: 02/02/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Poly(butylene succinate-butylene terephthalate) (PBST) and polylactic acid (PLA) are both biodegradable polymeric materials. PBST has good ductility but low strength, while PLA exhibits high strength but poor toughness. Based on the complementary mechanical properties of the two polymers, PBST/PLA blends were prepared by melt blending in the mixing chamber of a torque rheometer using styrene-maleic anhydride copolymer (PSMA) as a compatibilizer. The effects of different contents of PSMA on the crystalline properties, thermal properties, mechanical properties, rheological behavior, and morphology of PBST/PLA blends were investigated. The results showed that the addition of PSMA improved the compatibility between PBST and PLA. When the amount of PSMA is 3-4 wt%, the comprehensive mechanical properties of the blends are optimal, and the tensile strength was increased by 61.7% compared with the binary blend without PSMA. Additionally, rheological tests illustrated that the blends exhibited a typical shear-thinning behavior and belonged to pseudoplastic non-Newtonian fluids.
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Affiliation(s)
- Qing Zhang
- Correspondence: ; Tel.: +86-31-5386-3393
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Yang Q, Guo J, Zhang S, Guan F, Yu Y, Feng S, Yao Q, Bao D. Improved biomedical bioactivity of polyvinyl alcohol/polyethylene oxide composite system-based nanofiber membranes via incorporating Antarctic krill protein. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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40
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Cao S, Bo R, Zhang Y. Polymeric Scaffolds for Regeneration of Central/Peripheral Nerves and Soft Connective Tissues. ADVANCED NANOBIOMED RESEARCH 2023. [DOI: 10.1002/anbr.202200147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Shunze Cao
- Applied Mechanics Laboratory Department of Engineering Mechanics Laboratory for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Renheng Bo
- Applied Mechanics Laboratory Department of Engineering Mechanics Laboratory for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Yihui Zhang
- Applied Mechanics Laboratory Department of Engineering Mechanics Laboratory for Flexible Electronics Technology Tsinghua University Beijing 100084 China
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Sharma A, Kokil GR, He Y, Lowe B, Salam A, Altalhi TA, Ye Q, Kumeria T. Inorganic/organic combination: Inorganic particles/polymer composites for tissue engineering applications. Bioact Mater 2023; 24:535-550. [PMID: 36714332 PMCID: PMC9860401 DOI: 10.1016/j.bioactmat.2023.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 12/19/2022] [Accepted: 01/03/2023] [Indexed: 01/13/2023] Open
Abstract
Biomaterials have ushered the field of tissue engineering and regeneration into a new era with the development of advanced composites. Among these, the composites of inorganic materials with organic polymers present unique structural and biochemical properties equivalent to naturally occurring hybrid systems such as bones, and thus are highly desired. The last decade has witnessed a steady increase in research on such systems with the focus being on mimicking the peculiar properties of inorganic/organic combination composites in nature. In this review, we discuss the recent progress on the use of inorganic particle/polymer composites for tissue engineering and regenerative medicine. We have elaborated the advantages of inorganic particle/polymer composites over their organic particle-based composite counterparts. As the inorganic particles play a crucial role in defining the features and regenerative capacity of such composites, the review puts a special emphasis on the various types of inorganic particles used in inorganic particle/polymer composites. The inorganic particles that are covered in this review are categorised into two broad types (1) solid (e.g., calcium phosphate, hydroxyapatite, etc.) and (2) porous particles (e.g., mesoporous silica, porous silicon etc.), which are elaborated in detail with recent examples. The review also covers other new types of inorganic material (e.g., 2D inorganic materials, clays, etc.) based polymer composites for tissue engineering applications. Lastly, we provide our expert analysis and opinion of the field focusing on the limitations of the currently used inorganic/organic combination composites and the immense potential of new generation of composites that are in development.
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Affiliation(s)
- Astha Sharma
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- Australian Centre for Nanomedicine, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
| | - Ganesh R. Kokil
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- Australian Centre for Nanomedicine, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- School of Pharmacy, University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Yan He
- Institute of Regenerative and Translational Medicine, Department of Stomatology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, 430030, China
| | - Baboucarr Lowe
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- Australian Centre for Nanomedicine, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
| | - Arwa Salam
- Chemistry Department, College of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Tariq A. Altalhi
- Chemistry Department, College of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Qingsong Ye
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Corresponding author. Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Tushar Kumeria
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- Australian Centre for Nanomedicine, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
- School of Pharmacy, University of Queensland, Woolloongabba, QLD, 4102, Australia
- Corresponding author. School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia.
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Selvaras T, Alshamrani SA, Gopal R, Jaganathan SK, Sivalingam S, Kadiman S, Saidin S. Biodegradable and antithrombogenic chitosan/elastin blended polyurethane electrospun membrane for vascular tissue integration. J Biomed Mater Res B Appl Biomater 2023; 111:1171-1181. [PMID: 36625453 DOI: 10.1002/jbm.b.35223] [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: 08/14/2022] [Revised: 12/24/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023]
Abstract
Current commercialized vascular membranes to treat coronary heart disease (CHD) such as Dacron and expanded polytetrafluoroethylene (ePTFE) have been associated with biodegradable and thrombogenic issues that limit tissue integration. In this study, biodegradable vascular membranes were fabricated in a structure of electrospun nanofibers composed of polyurethane (PU), chitosan (CS) and elastin (0.5%, 1.0%, and 1.5%). The physicochemical properties of the membranes were analyzed, followed by the conduction of several test analyses. The blending of CS and elastin has increased the fiber diameter, pore size and porosity percentage with the appearance of identical chemical groups. The wettability of PU membranes was enhanced up to 39.6%, demonstrating higher degradation following the incorporation of both natural polymers. The PU/CS/elastin electrospun membranes exhibited a controlled release of CS (Higuchi and first-order mechanisms) and elastin (Higuchi and Korsmeyer-Peppas mechanisms). Delayed blood clotting time was observed through both activated partial thromboplastin time (APTT) and partial thromboplastin time (PT) analyses where significantly delay of 26.8% APTT was recorded on the PU membranes blended with CS and elastin, in comparison with the PU membranes, supporting the membrane's antithrombogenic properties. Besides, these membranes produced a minimum of 2.6 ± 0.1 low hemolytic percentage, projecting its hemocompatibility to be used as vascular membrane.
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Affiliation(s)
- Thiviya Selvaras
- Department of Biomedical Engineering & Health Sciences, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Somyah Ali Alshamrani
- Department of Biomedical Engineering & Health Sciences, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Rathosivan Gopal
- Department of Biomedical Engineering & Health Sciences, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | | | - Sivakumar Sivalingam
- Department of Cardiothoracic Surgery, Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - Suhaini Kadiman
- Department of Clinical Research, Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - Syafiqah Saidin
- Department of Biomedical Engineering & Health Sciences, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia.,IJN-UTM Cardiovascular Engineering Centre, Institute of Human Centered Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
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Shabbirahmed AM, Sekar R, Gomez LA, Sekhar MR, Hiruthyaswamy SP, Basavegowda N, Somu P. Recent Developments of Silk-Based Scaffolds for Tissue Engineering and Regenerative Medicine Applications: A Special Focus on the Advancement of 3D Printing. Biomimetics (Basel) 2023; 8:16. [PMID: 36648802 PMCID: PMC9844467 DOI: 10.3390/biomimetics8010016] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/21/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Regenerative medicine has received potential attention around the globe, with improving cell performances, one of the necessary ideas for the advancements of regenerative medicine. It is crucial to enhance cell performances in the physiological system for drug release studies because the variation in cell environments between in vitro and in vivo develops a loop in drug estimation. On the other hand, tissue engineering is a potential path to integrate cells with scaffold biomaterials and produce growth factors to regenerate organs. Scaffold biomaterials are a prototype for tissue production and perform vital functions in tissue engineering. Silk fibroin is a natural fibrous polymer with significant usage in regenerative medicine because of the growing interest in leftovers for silk biomaterials in tissue engineering. Among various natural biopolymer-based biomaterials, silk fibroin-based biomaterials have attracted significant attention due to their outstanding mechanical properties, biocompatibility, hemocompatibility, and biodegradability for regenerative medicine and scaffold applications. This review article focused on highlighting the recent advancements of 3D printing in silk fibroin scaffold technologies for regenerative medicine and tissue engineering.
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Affiliation(s)
- Asma Musfira Shabbirahmed
- Department of Biotechnology, School of Agriculture and Biosciences, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore 641 114, Tamil Nadu, India
| | - Rajkumar Sekar
- Department of Chemistry, Karpaga Vinayaga College of Engineering and Technology, GST Road, Chinna Kolambakkam, Chengalpattu 603308, Tamil Nadu, India
| | - Levin Anbu Gomez
- Department of Biotechnology, School of Agriculture and Biosciences, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore 641 114, Tamil Nadu, India
| | - Medidi Raja Sekhar
- Department of Chemistry, College of Natural Sciences, Kebri Dehar University, Korahe Zone, Somali Region, Kebri Dehar 3060, Ethiopia
| | | | - Nagaraj Basavegowda
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Prathap Somu
- Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (Deemed to be University), Chennai 600124, Tamil Nadu, India
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Abdelgawad M, Elkodous MA, El Rouby WMA. Biodegradable Polymers in Biomedical Applications: A Focus on Skin and Bone Regeneration. HANDBOOK OF BIODEGRADABLE MATERIALS 2023:1015-1043. [DOI: 10.1007/978-3-031-09710-2_45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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45
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Asl MA, Karbasi S, Beigi-Boroujeni S, Benisi SZ, Saeed M. Polyhydroxybutyrate-starch/carbon nanotube electrospun nanocomposite: A highly potential scaffold for bone tissue engineering applications. Int J Biol Macromol 2022; 223:524-542. [PMID: 36356869 DOI: 10.1016/j.ijbiomac.2022.11.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
Blend nanofibers composed of synthetic and natural polymers with carbon nanomaterial, have a great potential for bone tissue engineering. In this study, the electrospun nanocomposite scaffolds based on polyhydroxybutyrate(PHB)-Starch-multiwalled carbon nanotubes (MWCNTs) were fabricated with different concentrations of MWCNTs including 0.5, 0.75 and 1 wt%. The synthesized scaffolds were characterized in terms of morphology, porosity, thermal and mechanical properties, biodegradation, bioactivity, and cell behavior. The effect of the developed structures on MG63 cells was determined by real-time PCR quantification of collagen type I, osteocalcin, osteopontin and osteonectin genes. Our results showed that the scaffold containing 1 wt% MWCNTs presented the lowest fiber diameter (124 ± 44 nm) with a porosity percentage above 80 % and the highest tensile strength (24.37 ± 0.22 MPa). The addition of MWCNTs has a positive effect on surface roughness and hydrophilicity. The formation of calcium phosphate sediments on the surface of the scaffolds after immersion in SBF is observed by SEM and verified by EDS and XRD analysis.MG63 cells were well cultured on the scaffold containing MWCNTs and presented more cell viability, ALP secretion, calcium deposition and gene expression compared to the scaffolds without MWCNTs. The PHB-starch-1wt.%MWCNTs scaffold can be considerable for studies of supplemental bone tissue engineering applications.
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Affiliation(s)
- Maryam Abdollahi Asl
- Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran 1469669191, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Saeed Beigi-Boroujeni
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada Sur, Monterrey 2501, N.L., Mexico; Hard Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Soheila Zamanlui Benisi
- Stem Cell Research Center, Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mahdi Saeed
- Soft Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Rodriguez Barroso LG, Azaman FA, Pogue R, Devine D, Fournet MB. Monitoring In Vitro Extracellular Matrix Protein Conformations in the Presence of Biomimetic Bone-Regeneration Scaffolds Using Functionalized Gold-Edge-Coated Triangular Silver Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:57. [PMID: 36615967 PMCID: PMC9823344 DOI: 10.3390/nano13010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
In the cellular environment, high noise levels, such as fluctuations in biochemical reactions, protein variability, molecular diffusion, cell-to-cell contact, and pH, can both mediate and interfere with cellular functions. In this work, gold edge-coated triangular silver nanoparticles (AuTSNP) were validated as a promising new tool to indicate protein conformational transitions in cultured cells and to monitor essential protein activity in the presence of an optimized bone biomimetic chitosan-based scaffold whose rational design mimics the ECM as a natural scaffold. A chitosan-based scaffold formulation with hydroxyapatite (CS/HAp) was selected due to its promising features for orthopedic applications, including combined high mechanical strength biocompatibility and biodegradability. Functionalized AuTSNP-based tests with the model ECM protein, fibronectin (Fn), illustrate that the protein interactions can be clearly sensed over time through the local surface plasmon resonance (LSPR) technique. This demonstrates that AuTNSP are a powerful tool to detect protein conformational activity in the presence of biomimetic bone tissue regeneration scaffolds within a cellular environment that comprises a diversity of molecular cues.
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Affiliation(s)
- Laura G. Rodriguez Barroso
- Technological University of the Shannon: Midlands Midwest, Dublin Rd., N37 HD68 Athlone, Co. Westmeath, Ireland
| | - Farah Alwani Azaman
- Technological University of the Shannon: Midlands Midwest, Dublin Rd., N37 HD68 Athlone, Co. Westmeath, Ireland
| | - Robert Pogue
- Technological University of the Shannon: Midlands Midwest, Dublin Rd., N37 HD68 Athlone, Co. Westmeath, Ireland
- Universidade Católica de Brasília, Campus Asa Norte. SGAN Módulo B 916 Avenida W5—Asa Norte, Brasilia 70790-160-DF, Brazil
| | - Declan Devine
- Technological University of the Shannon: Midlands Midwest, Dublin Rd., N37 HD68 Athlone, Co. Westmeath, Ireland
| | - Margaret Brennan Fournet
- Technological University of the Shannon: Midlands Midwest, Dublin Rd., N37 HD68 Athlone, Co. Westmeath, Ireland
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Koushik TM, Miller CM, Antunes E. Bone Tissue Engineering Scaffolds: Function of Multi-Material Hierarchically Structured Scaffolds. Adv Healthc Mater 2022; 12:e2202766. [PMID: 36512599 DOI: 10.1002/adhm.202202766] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/29/2022] [Indexed: 12/15/2022]
Abstract
Bone tissue engineering (BTE) is a topic of interest for the last decade, and advances in materials, processing techniques, and the understanding of bone healing pathways have opened new avenues of research. The dual responsibility of BTE scaffolds in providing load-bearing capability and interaction with the local extracellular matrix to promote bone healing is a challenge in synthetic scaffolds. This article describes the usage and processing of multi-materials and hierarchical structures to mimic the structure of natural bone tissues to function as bioactive and load-bearing synthetic scaffolds. The first part of this literature review describes the physiology of bone healing responses and the interactions at different stages of bone repair. The following section reviews the available literature on biomaterials used for BTE scaffolds followed by some multi-material approaches. The next section discusses the impact of the scaffold's structural features on bone healing and the necessity of a hierarchical distribution in the scaffold structure. Finally, the last section of this review highlights the emerging trends in BTE scaffold developments that can inspire new tissue engineering strategies and truly develop the next generation of synthetic scaffolds.
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Affiliation(s)
- Tejas M Koushik
- College of Science and Engineering, James Cook University, Townsville, Queensland, 4811, Australia
| | - Catherine M Miller
- College of Medicine and Dentistry, James Cook University, Smithfield, Queensland, 4878, Australia
| | - Elsa Antunes
- College of Science and Engineering, James Cook University, Townsville, Queensland, 4811, Australia
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Moise S, Dolcetti L, Dazzi F, Roach P, Buttery L, MacNeil S, Medcalf N. Assessing the immunosuppressive activity of alginate-encapsulated mesenchymal stromal cells on splenocytes. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2022; 50:168-176. [PMID: 35726746 DOI: 10.1080/21691401.2022.2088547] [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: 01/28/2022] [Revised: 04/09/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Mesenchymal stromal cells (MSCs) show immunosuppressive effects both via cell-to-cell contact (direct) with immune cells and by producing paracrine factors and extracellular vesicles (indirect). A key challenge in delivering this therapeutic effect in vivo is retaining the MSCs at the site of injection. One way to address this is by encapsulating the MSCs within suitable biomaterial scaffolds. Here, we assess the immunosuppressive effect of alginate-encapsulated murine MSCs on proliferating murine splenocytes. Our results show that MSCs are able to significantly suppress splenocyte proliferation by ∼50% via the indirect mechanism and almost completely (∼98%) via the direct mechanism. We also show for the first time that MSCs as monolayers on tissue culture plastic or encapsulated within alginate, when physically isolated from the splenocytes via transwells, are able to sustain immunosuppressive activity with repeated exposure to fresh splenocytes, for as long as 9 days. These results indicate the need to identify design strategies to simultaneously deliver both modes of MSC immunosuppression. By designing cell-biomaterial constructs with tailored degradation profiles, we can achieve a more sustained (avoiding MSCs migration and apoptosis) and controlled release of both the paracrine signals and eventually the cells themselves enabling efficient MSC-based immunosuppressive therapies for wound healing.
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Affiliation(s)
- Sandhya Moise
- Centre for Integrated Bioprocessing Research (CIBR), Department of Chemical Engineering, University of Bath, Bath, UK
- Centre for Therapeutic Innovation (CTI), University of Bath, Bath, UK
| | - Luigi Dolcetti
- Department of Medicine and Pharmaceutical Science, King's College London, London, UK
| | - Francesco Dazzi
- Department of Haematological malignancies and stem cell transplant, Kings College hospital NHS trust, London, UK
| | - Paul Roach
- Department of Chemistry, Loughborough University, Loughborough, UK
| | - Lee Buttery
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Sheila MacNeil
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, UK
| | - Nick Medcalf
- Centre for Biological Engineering, Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough, UK
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Xie Y, Zhang F, Akkus O, King MW. A collagen/PLA hybrid scaffold supports tendon-derived cell growth for tendon repair and regeneration. J Biomed Mater Res B Appl Biomater 2022; 110:2624-2635. [PMID: 35779243 PMCID: PMC9795886 DOI: 10.1002/jbm.b.35116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/12/2022] [Accepted: 06/08/2022] [Indexed: 12/30/2022]
Abstract
A rotator cuff tendon tear is a common shoulder injury with a relatively high rate of recurrence after surgical repair. In order to reinforce the repair and reduce the risk of clinical complications, a patch scaffold is typically sutured over the tendon tear to provide post-surgical mechanical support. However, despite considerable research effort in this area, a patch scaffold that provides both superior initial mechanical properties and supports cell proliferation at the same time has not yet been achieved. In this study, we engineered a collagen/poly(lactic acid) (COL/PLA) hybrid yarn to leverage mechanical strength of PLA yarn and the bioactivity of collagen. The COL/PLA yarns were used to fabricate a tissue engineering scaffold using textile weaving technology. This hybrid scaffold had a tensile strength of 354.0 ± 36.0 N under dry conditions and 267.2 ± 15.9 N under wet conditions, which was satisfactory to maintain normal tendon function. By introducing COL yarns into the hybrid scaffold, the proliferation of tendon-derived cells was significantly improved on the scaffold. Cell coverage after 28-days of in vitro cell culture was noticeably higher on the COL yarns compared to the PLA yarns as a result of a larger number of cells and more spread cell morphology on collagen. Cells spread in multiple directions on COL yarns, which resembled a more natural cell attachment on extracellular matrix. On the contrary, the cells attached to the PLA filaments presented an elongated morphology along the fiber's axial direction. Combining the mechanical robustness of PLA and the biological activity of collagen, the woven COL/PLA hybrid scaffold has shown its potential to be a promising candidate for tendon repair applications.
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Affiliation(s)
- Yu Xie
- Wilson College of TextilesNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Fan Zhang
- Wilson College of TextilesNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Ozan Akkus
- Department of Mechanical and Aerospace EngineeringCase Western Reserve UniversityClevelandOhioUSA,Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOhioUSA,Department of OrthopedicsCase Western Reserve UniversityClevelandOhioUSA
| | - Martin W. King
- Wilson College of TextilesNorth Carolina State UniversityRaleighNorth CarolinaUSA,College of TextilesDonghua UniversityShanghaiPeople's Republic of China
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50
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Bakhtiary N, Pezeshki-Modaress M, Najmoddin N. Wet-electrospinning of nanofibrous magnetic composite 3-D scaffolds for enhanced stem cells neural differentiation. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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