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Chen L, Mei S, Fu K, Zhou J. Spinning the Future: The Convergence of Nanofiber Technologies and Yarn Fabrication. ACS NANO 2024; 18:15358-15386. [PMID: 38837241 DOI: 10.1021/acsnano.4c02399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The rapid advancement in nanofiber technologies has revolutionized the domain of yarn materials, marking a significant leap in textile technology. This review dissects the nexus between cutting-edge nanofiber technologies and yarn manufacturing, aiming to illuminate the pathway toward engineering advanced textiles with unparalleled functionality. It first discusses the fundamentals of nanofiber assemblies and spinning techniques, primarily focusing on electrospinning, centrifugal spinning, and blow spinning. Additionally, the study delves into integrating nanofiber spinning technologies with traditional and modern yarn fabrication principles, elucidating the design principles that underlie the creation of yarns incorporating nanofibers. Twisting technologies are explored to examine how they can be optimized and adapted for incorporating nanofibers, thus enabling the production of innovative nanofiber-based yarns. Special attention is given to scalable strategies like centrifugal and blow spinning, which are spotlighted for their efficiency and scalability in fabricating nanofiber yarns. This review further analyses recently developed nanofiber yarn applications, including wearable sensors, biomedical devices, moisture management textiles, and energy harvesting and storage devices. We finally present a forward-looking perspective to address unresolved issues in nanofiber-based yarn technologies.
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Affiliation(s)
- Long Chen
- Hubei Digital Textile Equipment Key Laboratory, Wuhan Textile University, Wuhan, Hubei 430200, China
- The Advanced Textile Technology Innovation Center (Jianhu Laboratory), Shaoxing 312000, China
- School of Material Science and Engineering, Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, State Key Laboratory for Optoelectronic Materials and Technologies, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Laboratory of Advanced Electronic and Fiber Materials, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Shunqi Mei
- Hubei Digital Textile Equipment Key Laboratory, Wuhan Textile University, Wuhan, Hubei 430200, China
- The Advanced Textile Technology Innovation Center (Jianhu Laboratory), Shaoxing 312000, China
| | - Kelvin Fu
- Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Jian Zhou
- School of Material Science and Engineering, Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, State Key Laboratory for Optoelectronic Materials and Technologies, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Laboratory of Advanced Electronic and Fiber Materials, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
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Keckstein P, Dittrich R, Bleisinger N, Hoffmann I, Beckmann MW, Gebhardt A, Schmid B, Keckstein S. Survival and hormone production of isolated mouse follicles in three-dimensional artificial scaffolds after stimulation with bpV(HOpic). Arch Gynecol Obstet 2024; 309:2127-2136. [PMID: 38472502 PMCID: PMC11018681 DOI: 10.1007/s00404-024-07419-z] [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] [Accepted: 02/05/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE To preserve fertility before gonadotoxic therapy, ovarian tissue can be removed, cryopreserved, and transplanted back again after treatment. An alternative is the artificial ovary, in which the ovarian follicles are extracted from the tissue, which reduces the risk of reimplantation of potentially remaining malignant cells. The PTEN inhibitor bpV(HOpic) has been shown to activate human, bovine and alpacas ovarian follicles, and it is therefore considered a promising substance for developing the artificial ovary. The purpose of this study was to examine the impact of different scaffolds and the vanadate derivative bpV(HOpic) on mice follicle survival and hormone secretion over 10 days. METHODS A comparative analysis was performed, studying the survival rates (SR) of isolated mice follicle in four different groups that differed either in the scaffold (polycaprolactone scaffold versus polyethylene terephthalate membrane) or in the medium-bpV(HOpic) versus control medium. The observation period of the follicles was 10 days. On days 2, 6, and 10, the viability and morphology of the follicles were checked using fluorescence or confocal microscopy. Furthermore, hormone levels of estrogen (pmol/L) and progesterone (nmol/L) were determined. RESULTS When comparing the SR of follicles among the four groups, it was observed that on day 6, the study groups utilizing the polycaprolactone scaffold with bpV(HOpic) in the medium (SR: 0.48 ± 0.18; p = 0.004) or functionalized in the scaffold (SR: 0.50 ± 0.20; p = 0.003) exhibited significantly higher survival rates compared to the group using only the polyethylene terephthalate membrane (SR: 0). On day 10, a significantly higher survival rate was only noted when comparing the polycaprolactone scaffold with bpV(HOpic) in the medium to the polyethylene terephthalate membrane group (SR: 0.38 ± 0.20 versus 0; p = 0.007). Higher levels of progesterone were only significantly associated with better survival rates in the group with the polycaprolactone scaffold functionalized with bpV(HOpic) (p = 0.017). CONCLUSION This study demonstrates that three-dimensional polycaprolactone scaffolds improve the survival rates of isolated mice follicles in comparison with a conventional polyethylene terephthalate membrane. The survival rates slightly improve with added bpV(HOpic). Furthermore, higher rates of progesterone were also partly associated with improved survival.
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Affiliation(s)
- Philip Keckstein
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany.
| | - Ralf Dittrich
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Nathalie Bleisinger
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Inge Hoffmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Albrecht Gebhardt
- Department of Statistics, University of Klagenfurt, Klagenfurt, Austria
| | - Benjamin Schmid
- Optical Imaging Center Erlangen (OICE), University of Erlangen-Nürnberg, Erlangen, Germany
| | - Simon Keckstein
- Department of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Munich, Germany
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Ozdemir S, Oztemur J, Sezgin H, Yalcin-Enis I. Optimization of Electrospun Bilayer Vascular Grafts through Assessment of the Mechanical Properties of Monolayers. ACS Biomater Sci Eng 2024; 10:960-974. [PMID: 38196384 DOI: 10.1021/acsbiomaterials.3c01161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Small-diameter vascular grafts must be obtained with the most appropriate materials and design selection to harmoniously display a variety of features, including adequate tensile strength, compliance, burst strength, biocompatibility, and biodegradability against challenging physiological and hemodynamic conditions. In this study, monolayer vascular grafts with randomly distributed or radially oriented fibers are produced using neat, blended, and copolymer forms of polycaprolactone (PCL) and poly(lactic acid) (PLA) via the electrospinning technique. The blending ratio is varied by increasing 10 in the range of 50-100%. Bilayer graft designs are realized by determining the layers with a random fiber distribution for the inner layer and radial fiber orientation for the outer layer. SEM analysis, wall thickness and fiber diameter measurements, tensile strength, elongation, burst strength, and compliance tests are done for both mono- and bilayer scaffolds. The findings revealed that the scaffolds made of neat PCL show more flexibility than the neat PLA samples, which possess higher tensile strength values than neat PCL scaffolds. Also, in blended samples, the tensile strength values do not show a significant improvement, whereas the elongation values are enhanced in tubular samples, depending on the blending ratio. Also, neat poly(l-lactide-co-caprolactone) (PLCL) samples have both higher elongation and strength values than neat and blended scaffolds, with some exceptions. The blended specimens comprising a combination of PCL and PLA, with blending ratios of 80/20 and 70/30, exhibited the most elevated burst pressures. Conversely, the PLCL scaffolds demonstrated superior compliance levels. These findings suggest that the blending approach and fiber orientation offer enhanced burst strength, while copolymer utilization in PLCL scaffolds without fiber alignment enhances their compliance properties. Thus, it is evident that using a copolymer instead of blending PCL and PLA and combining the PLCL layer with PCL and PLA monolayers in bilayer vascular graft design is promising in terms of mechanical and biological properties.
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Affiliation(s)
- Suzan Ozdemir
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Janset Oztemur
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Hande Sezgin
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
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Toloue EB, Mohammadalipour M, Mukherjee S, Karbasi S. Ultra-thin electrospun nanocomposite scaffold of poly (3-hydroxybutyrate)-chitosan/magnetic mesoporous bioactive glasses for bone tissue engineering applications. Int J Biol Macromol 2024; 254:127860. [PMID: 37939755 DOI: 10.1016/j.ijbiomac.2023.127860] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
Bioglass is widely used in skeletal tissue engineering due to its outstanding bioactive properties. In the present study, magnetic mesoporous bioglass (MMBG) synthesized through the sol-gel method was incorporated into poly(3-hydroxybutyrate)-chitosan (PHB-Cs) solution and the resulting electrospun nanocomposite scaffolds were investigated and compared with MMBG free scaffold. The addition of 10 wt% MMBG has an outstanding effect on producing ultra-thin electrospun nanocomposite fibers due to its magnetic content (diameter of ≃128 nm). This improvement led to better mechanical properties, including an increase in both tensile modulus (up to ≃229 MPa) and tensile strength (to ≃4.95 MPa). Although the inclusion of MMBG slightly decreased the surface roughness of the nanofibrous scaffold (RMS from ≃197 to 154 nm), it could improve the wettability (WCA from ≃54 to 44°). This achievement has the potential to bring an enhancement in biomineralization and biological response. These outputs, combined with the observed increase in human osteoblast MG-63 cell viability (≃53 % improvement) as measured by MTT assay, DAPI, and SEM indicate prefer cell behavior of this nanocomposite structure. Additionally, the qualitative improvement in Alizarin Red staining and the quantitative enhancement of ALP secretion, serve as further evidence of the PHB-Cs/MMBG ultrathin nanofibers potential in bone tissue engineering.
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Affiliation(s)
- Elahe Bahremandi Toloue
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Australia; Department of Obstetrics and Gynecology, Monash University, Clayton, Australia
| | - Mohammad Mohammadalipour
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Shayanti Mukherjee
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Australia; Department of Obstetrics and Gynecology, Monash University, Clayton, Australia
| | - 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.
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Piatti E, Miola M, Liverani L, Verné E, Boccaccini AR. Poly(ε-caprolactone)/bioactive glass composite electrospun fibers for tissue engineering applications. J Biomed Mater Res A 2023; 111:1692-1709. [PMID: 37300320 DOI: 10.1002/jbm.a.37578] [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: 12/21/2022] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023]
Abstract
In this work, composite electrospun fibers containing innovative bioactive glass nanoparticles were produced and characterized. Poly(ε-caprolactone), benign solvents, and sol-gel B- and Cu-doped bioactive glass powders were used to fabricate fibrous scaffolds. The retention of bioactive glass nanoparticles in the polymer matrix, the electrospinnability of this novel solution and the obtained electrospun composites were extensively characterized. As a result, composite electrospun fibers characterized by biocompatibility, bioactivity, and exhibiting overall properties adequate for both hard and soft tissue engineering applications, have been produced. The addition of these bioactive glass nanoparticles was, indeed, able to impart bioactive properties to the fibers. Cell culture studies show promising results, demonstrating proliferation and growth of cells on the composite fibers. Wettability, degradation rate, and mechanical performance were also tested and are in line with previous results.
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Affiliation(s)
- Elisa Piatti
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
| | - Marta Miola
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nürnberg, Erlangen, Germany
- DGS S.p.A., Rome, Italy
| | - Enrica Verné
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nürnberg, Erlangen, Germany
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Ege D, Pourshahrestani S, Iorio F, Reinfelder H, de Ligny D, Boccaccini AR. Processing and characterization of aligned electrospun gelatin/polycaprolactone nanofiber mats incorporating borate glass (13-93B3) microparticles. Biomed Mater 2023; 18:055030. [PMID: 37582377 DOI: 10.1088/1748-605x/acf0ad] [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: 06/02/2023] [Accepted: 08/15/2023] [Indexed: 08/17/2023]
Abstract
Aligned biodegradable fibers incorporating bioactive glass particles are being highly investigated for tissue engineering applications. In this study, 5, 7 and 10 wt% melt-derived 1393B3 borate glass (BG) microparticles (average size: 3.15 µm) were incorporated in 83 wt% polycaprolactone (PCL) and 17 wt% gelatin (GEL) (83PCL/17GEL) solutions to produce aligned electrospun composite nanofiber mats. Addition of 5 wt% BG particles significantly increased the alignment of the nanofibers. However, further incorporation of BG particles led to reduced degree of alignment, likely due to an increase of viscosity. Mechanical tests indicated a tensile modulus and tensile strength of approximately 51 MPa and 3.4 MPa, respectively, for 5 wt% addition of 1393B3 BG microparticles, values considered suitable for soft tissue engineering applications. However, with the increasing amount of 1393B3 BG, the nanofiber mats became brittle. Contact angle was reduced after the addition of 5 wt% of 1393B3 BG particles from∼45° to∼39°. Cell culture studies with normal human dermal fibroblast (NHDF) cells indicated that 5 wt% 1393B3 BG incorporated nanofiber mats were cytocompatible whereas higher doping with 1393B3 BGs reduced biocompatibility. Overall, 5 wt% 1393B3 BG doped PCL/GEL nanofiber mats were aligned with high biocompatibility exhibiting desirable mechanical properties for soft tissue engineering, which indicates their potential for applications requiring aligned nanofibers, such as peripheral neural regeneration.
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Affiliation(s)
- Duygu Ege
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
- Institute of Biomedical Engineering, Bogazici University, Rasathane St., Kandilli 34684, Istanbul, Turkey
| | - Sara Pourshahrestani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Francesco Iorio
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Heike Reinfelder
- Department of Materials Science and Engineering, Institute of Glass and Ceramics, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Dominique de Ligny
- Department of Materials Science and Engineering, Institute of Glass and Ceramics, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Investigation of Cell Adhesion and Cell Viability of the Endothelial and Fibroblast Cells on Electrospun PCL, PLGA and Coaxial Scaffolds for Production of Tissue Engineered Blood Vessel. J Funct Biomater 2022; 13:jfb13040282. [PMID: 36547542 PMCID: PMC9782893 DOI: 10.3390/jfb13040282] [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: 11/03/2022] [Revised: 11/27/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022] Open
Abstract
Endothelialization of artificial scaffolds is considered an effective strategy for increasing the efficiency of vascular transplantation. This study aimed to compare the biophysical/biocompatible properties of three different biodegradable fibrous scaffolds: Poly (ɛ-caprolactone) (PCL) alone, Poly Lactic-co-Glycolic Acid (PLGA) alone (both processed using Spraybase® electrospinning machine), and Coaxial scaffold where the fiber core and sheath was made of PCL and PLGA, respectively. Scaffold structural morphology was assessed by scanning electron microscope and tensile testing was used to investigate the scaffold tension resistance over time. Biocompatibility studies were carried out with human umbilical vein endothelial cells (HUVEC) and human vascular fibroblasts (HVF) for which cell viability (and cell proliferation over a 4-day period) and cell adhesion to the scaffolds were assessed by cytotoxicity assays and confocal microscopy, respectively. Our results showed that all biodegradable polymeric scaffolds are a reliable host to adhere and promote proliferation in HUVEC and HVF cells. In particular, PLGA membranes performed much better adhesion and enhanced cell proliferation compared to control in the absence of polymers. In addition, we demonstrate here that these biodegradable membranes present improved mechanical properties to construct potential tissue-engineered vascular graft.
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Peidavosi N, Azami M, Beheshtizadeh N, Ramazani Saadatabadi A. Piezoelectric conductive electrospun nanocomposite PCL/Polyaniline/Barium Titanate scaffold for tissue engineering applications. Sci Rep 2022; 12:20828. [PMID: 36460783 PMCID: PMC9718788 DOI: 10.1038/s41598-022-25332-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022] Open
Abstract
Recent trends in tissue engineering technology have switched to electrical potentials generated through bioactive scaffolds regarding their appropriate effects on cell behaviors. Preparing a piezo-electrical stimuli scaffold with high electrical conductivity for bone and cartilage tissue regeneration is the ultimate goal of the present study. Here, Barium Titanate nanoparticles (BaTiO3 NPs) were used as piezoelectric material and highly conductive binary doped Polyaniline nanoparticles (PANI NPs) were synthesized by oxidative polymerization. Polycaprolactone (PCL) was applied as carrier substrate polymer and conductive spun nanofibrous scaffolds of PCL/PANI composites were prepared in two different amounts of PANI (3 and 5 wt.%). The conductivity of PCL/PANI nanofibers has been analyzed by standard four probes test. Based on the obtained results, the PCL/PANI5 (with 5 wt.% PANI) was selected due to the superior electrical conductivity of 8.06 × 10-4 s cm - 1. Moreover, the piezoelectric nanofibrous scaffolds of PCL/BT composite were electrospun in three different amounts of BT (20, 30, and 40 wt.%). To investigate the synergic effect of conductive PANI and piezoelectric BT, ternary nanocomposite scaffolds of PCL/PANI/BT were prepared using the dual jet electrospinning technique. The piezoelectric properties have been analyzed by determining the produced voltage. The morphological assessment, contact angle, mechanical test, and MTT assay have been conducted to evaluate other properties including biocompatibility of nanofibrous scaffolds. The PCL/PANI5/BT40 composite resulted in an unprecedented voltage of 1.9 Volt. SEM results confirm that BT NPs have been distributed and embedded inside PCL fibers quite appropriately. Also, the chosen scaffolds were homogeneously intertwined and possessed an average fiber diameter of 288 ± 180 nm, and a contact angle of 92 ± 7°, making it a desirable surface for cell attachment and protein interactions. Moreover, Young's modulus, ultimate tensile stress, and elongation were obtained as 11 ± 1 MPa, 5 ± 0.6 MPa, and 109 ± 15% respectively. Obtained results assert the novel potential of piezo-electrical stimuli conductive nanocomposite scaffold for tissue engineering applications.
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Affiliation(s)
- Naeemeh Peidavosi
- grid.411463.50000 0001 0706 2472Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran ,grid.411705.60000 0001 0166 0922Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Azami
- grid.411705.60000 0001 0166 0922Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Beheshtizadeh
- grid.411705.60000 0001 0166 0922Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Ramazani Saadatabadi
- grid.412553.40000 0001 0740 9747Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
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Alkaissy R, Richard M, Morris H, Snelling S, Pinchbeck H, Carr A, Mouthuy PA. Manufacture of Soft-Hard Implants from Electrospun Filaments Embedded in 3D Printed Structures. Macromol Biosci 2022; 22:e2200156. [PMID: 36048528 DOI: 10.1002/mabi.202200156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/14/2022] [Indexed: 01/15/2023]
Abstract
Rotator cuff tendon tears are common injuries of the musculoskeletal system that often require surgical repair. However, re-tearing following repair is a significant clinical problem, with a failure rate of up to 40%, notably at the transition from bone to tendon. The development of biphasic materials consisting of soft and hard components, which can mimic this interface, is therefore promising. Here, a simple manufacturing approach is proposed that combines electrospun filaments and 3D printing to achieve scaffolds made of a soft polydioxanone cuff embedded in a porous polycaprolactone block. The insertion area of the cuff is based on the supraspinatus tendon footprint and the size of the cuff is scaled up from 9 to 270 electrospun filaments to reach a clinically relevant strength of 227N on average. The biological evaluation shows that the biphasic scaffold components are noncytotoxic, and that tendon and bone cells can be grown on the cuff and block, respectively. Overall, these results indicate that combining electrospinning and 3D printing is a feasible and promising approach to create soft-to-hard biphasic scaffolds that can improve the outcomes of rotator cuff repair.
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Affiliation(s)
- Rand Alkaissy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Michael Richard
- 3D LifePrints UK Ltd, Nuffield Orthopaedic Centre, Old Road, Oxford, OX3 7LD, United Kingdom
| | - Hayley Morris
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Henry Pinchbeck
- 3D LifePrints UK Ltd, Nuffield Orthopaedic Centre, Old Road, Oxford, OX3 7LD, United Kingdom
| | - Andrew Carr
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Pierre-Alexis Mouthuy
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Renkler NZ, Cruz-Maya I, Bonadies I, Guarino V. Electro Fluid Dynamics: A Route to Design Polymers and Composites for Biomedical and Bio-Sustainable Applications. Polymers (Basel) 2022; 14:polym14194249. [PMID: 36236197 PMCID: PMC9572386 DOI: 10.3390/polym14194249] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 12/01/2022] Open
Abstract
In the last two decades, several processes have been explored for the development of micro and/or nanostructured substrates by sagely physically and/or chemically manipulating polymer materials. These processes have to be designed to overcome some of the limitations of the traditional ones in terms of feasibility, reproducibility, and sustainability. Herein, the primary aim of this work is to focus on the enormous potential of using a high voltage electric field to manipulate polymers from synthetic and/or natural sources for the fabrication of different devices based on elementary units, i.e., fibers or particles, with different characteristic sizes—from micro to nanoscale. Firstly, basic principles and working mechanisms will be introduced in order to correlate the effect of selected process parameters (i.e., an applied voltage) on the dimensional features of the structures. Secondly, a comprehensive overview of the recent trends and potential uses of these processes will be proposed for different biomedical and bio-sustainable application areas.
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Han W, Wang L, Li Q, Ma B, He C, Guo X, Nie J, Ma G. A Review: Current Status and Emerging Developments on Natural Polymer‐Based Electrospun Fibers. Macromol Rapid Commun 2022; 43:e2200456. [DOI: 10.1002/marc.202200456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/03/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Weisen Han
- Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Liangyu Wang
- Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Qin Li
- Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Bomou Ma
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 P. R. China
| | - Chunju He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 P. R. China
| | - Xuefeng Guo
- Changzhou Vocational Institute of Textile and Garment School of Textile 53 Gehu Middle Road Changzhou Jiangsu 213164 P.R. China
| | - Jun Nie
- Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Guiping Ma
- Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 P. R. China
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12
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Szewczyk J, Aguilar-Ferrer D, Coy E. Polydopamine films: Electrochemical growth and sensing applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Opálková Šišková A, Mosnáčková K, Musioł M, Opálek A, Bučková M, Rychter P, Eckstein Andicsová A. Electrospun Nisin-Loaded Poly(ε-caprolactone)-Based Active Food Packaging. MATERIALS 2022; 15:ma15134540. [PMID: 35806664 PMCID: PMC9267198 DOI: 10.3390/ma15134540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/30/2022]
Abstract
Packaging for fresh fruits and vegetables with additional properties such as inhibition of pathogens grown can reduce food waste. With its biodegradability, poly(ε-caprolactone) (PCL) is a good candidate for packaging material, especially in the form of an electrospun membrane. The preparation of nonwoven fabric of PCL loaded with food additive, antimicrobial nisin makes them an active packaging with antispoilage properties. During the investigation of the nonwoven fabric mats, different concentrations of nisin were obtained from the solution of PCL via the electrospinning technique. The obtained active porous PCL loaded with varying concentrations of nisin inhibited the growth of Staphylococcus aureus and Escherichia coli. Packages made of PCL and PCL/nisin fibrous mats demonstrated a prolongation of the fruits’ freshness, improving their shelf life and, consequently, their safety.
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Affiliation(s)
- Alena Opálková Šišková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (K.M.); (A.E.A.)
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia;
- Correspondence:
| | - Katarína Mosnáčková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (K.M.); (A.E.A.)
| | - Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowska 34, 41-800 Zabrze, Poland;
| | - Andrej Opálek
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia;
| | - Mária Bučková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia;
| | - Piotr Rychter
- Faculty of Science and Technology, Jan Długosz University in Częstochowa, 13/15 Armii Krajowej Av., 42-200 Częstochowa, Poland;
| | - Anita Eckstein Andicsová
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (K.M.); (A.E.A.)
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14
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Di Berardino C, Liverani L, Peserico A, Capacchietti G, Russo V, Bernabò N, Tosi U, Boccaccini AR, Barboni B. When Electrospun Fiber Support Matters: In Vitro Ovine Long-Term Folliculogenesis on Poly (Epsilon Caprolactone) (PCL)-Patterned Fibers. Cells 2022; 11:cells11121968. [PMID: 35741097 PMCID: PMC9222101 DOI: 10.3390/cells11121968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/17/2022] [Indexed: 12/14/2022] Open
Abstract
Current assisted reproduction technologies (ART) are insufficient to cover the slice of the population needing to restore fertility, as well as to amplify the reproductive performance of domestic animals or endangered species. The design of dedicated reproductive scaffolds has opened the possibility to better recapitulate the reproductive 3D ovarian environment, thus potentially innovating in vitro folliculogenesis (ivF) techniques. To this aim, the present research has been designed to compare ovine preantral follicles in vitro culture on poly(epsilon-caprolactone) (PCL)-based electrospun scaffolds designed with different topology (Random vs. Patterned fibers) with a previously validated system. The ivF performances were assessed after 14 days under 3D-oil, Two-Step (7 days in 3D-oil and on scaffold), or One-Step PCL protocols (14 days on PCL-scaffold) by assessing morphological and functional outcomes. The results show that Two- and One-Step PCL ivF protocols, when performed on patterned scaffolds, were both able to support follicle growth, antrum formation, and the upregulation of follicle marker genes leading to a greater oocyte meiotic competence than in the 3D-oil system. In conclusion, the One-Step approach could be proposed as a practical and valid strategy to support a synergic follicle-oocyte in vitro development, providing an innovative tool to enhance the availability of matured gametes on an individual basis for ART purposes.
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Affiliation(s)
- Chiara Di Berardino
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
- Correspondence:
| | - Liliana Liverani
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University of Erlangen-Nuremberg, 91054 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Alessia Peserico
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
| | - Giulia Capacchietti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
| | - Valentina Russo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
| | - Nicola Bernabò
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
| | - Umberto Tosi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
| | - Aldo Roberto Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander University of Erlangen-Nuremberg, 91054 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy; (A.P.); (G.C.); (V.R.); (N.B.); (U.T.); (B.B.)
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15
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Zhou J, Nie Y, Jin C, Zhang JXJ. Engineering Biomimetic Extracellular Matrix with Silica Nanofibers: From 1D Material to 3D Network. ACS Biomater Sci Eng 2022; 8:2258-2280. [PMID: 35377596 DOI: 10.1021/acsbiomaterials.1c01525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biomaterials at nanoscale is a fast-expanding research field with which extensive studies have been conducted on understanding the interactions between cells and their surrounding microenvironments as well as intracellular communications. Among many kinds of nanoscale biomaterials, mesoporous fibrous structures are especially attractive as a promising approach to mimic the natural extracellular matrix (ECM) for cell and tissue research. Silica is a well-studied biocompatible, natural inorganic material that can be synthesized as morpho-genetically active scaffolds by various methods. This review compares silica nanofibers (SNFs) to other ECM materials such as hydrogel, polymers, and decellularized natural ECM, summarizes fabrication techniques for SNFs, and discusses different strategies of constructing ECM using SNFs. In addition, the latest progress on SNFs synthesis and biomimetic ECM substrates fabrication is summarized and highlighted. Lastly, we look at the wide use of SNF-based ECM scaffolds in biological applications, including stem cell regulation, tissue engineering, drug release, and environmental applications.
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Affiliation(s)
- Junhu Zhou
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Yuan Nie
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Congran Jin
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - John X J Zhang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
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16
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Borges-Vilches J, Unalan I, Fernández K, Boccaccini AR. Fabrication of Biocompatible Electrospun Poly(ε-caprolactone)/Gelatin Nanofibers Loaded with Pinus radiata Bark Extracts for Wound Healing Applications. Polymers (Basel) 2022; 14:polym14122331. [PMID: 35745907 PMCID: PMC9228265 DOI: 10.3390/polym14122331] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/01/2023] Open
Abstract
In this study, poly(ε-caprolactone) (PCL)/gelatin (GEL) electrospun nanofibers loaded with two different concentrations of Pinus radiata bark extracts (PEs) were fabricated via electrospinning for wound healing applications. The effects of incorporating PE into PCL/GEL electrospun nanofibers were investigated regarding their physicochemical properties and in vitro biocompatibility. All electrospun nanofibers showed smooth, uniform, and bead-free surfaces. Their functional groups were detected by ATR-FTIR spectroscopy, and their total phenol content was measured by a Folin–Ciocalteu assay. With PE addition, the electrospun nanofibers exhibited an increase in their wettability and degradation rates over time and a decrease in their tensile stress values from 20 ± 4 to 8 ± 2 MPa for PCL/GEL and PCL/GEL/0.36%PE samples, respectively. PE was also released from the fibrous mats in a rather controlled fashion. The PCL/GEL/0.18%PE and PCL/GEL/0.36%PE electrospun nanofibers inhibited bacterial activity at around 6 ± 0.1% and 23 ± 0.3% against E. coli and 14 ± 0.1% and 18 ± 0.2% against S. aureus after 24 h incubation, respectively. In vitro cell studies showed that PE-loaded electrospun nanofibers enhanced HaCaT cell growth, attachment, and proliferation, favoring cell migration towards the scratch area in the wound healing assay and allowing a complete wound closure after 72 h treatment. These findings suggested that PE-loaded electrospun nanofibers are promising materials for antibiotic-free dressings for wound healing applications.
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Affiliation(s)
- Jessica Borges-Vilches
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción 4030000, Chile; (J.B.-V.); (K.F.)
| | - Irem Unalan
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany;
| | - Katherina Fernández
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción 4030000, Chile; (J.B.-V.); (K.F.)
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany;
- Correspondence:
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17
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Vargas Osorio Z, Ruther FF, Chen S, Sengupta S, Liverani L, Michálek M, Galusek D, Boccaccini AR. Environmentally friendly fabrication of electrospun nanofibers made of polycaprolactone, chitosan and κ-carrageenan (PCL/CS/κ-C). Biomed Mater 2022; 17. [PMID: 35545079 DOI: 10.1088/1748-605x/ac6eaa] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/11/2022] [Indexed: 11/11/2022]
Abstract
Electrospun fibers based on biodegradable polyanionic or polycationic biopolymers are highly beneficial for biomedical applications. In this work, electrospun nanofibers made from poly(epsilon caprolactone) (PCL), chitosan (CS) and κ-carrageenan (κ-C) were successfully fabricated using several mixtures of benign solvents containing formic acid (FA) and acetic acid (AA). The addition of κ-carrageenan improved the preparation procedure for the production of PCL/CS fibers by electrospinning. Moreover, a polymer mixture was selected to be stored at -20 °C for one month with the purpose to study the properties of the resulting fiber mat. The results indicated that fiber characteristics were not seriously compromised compared to the ones of those fabricated with the original solution, which represents an important reduction in produced waste. Thus, the interactions that occur between positively and negatively charged hydrophilic polysaccharides might induce higher stability to the linear aliphatic polyester in the polymer mixture. All fiber mats were morphologically, physico-chemically and mechanically characterized, showing average fiber diameters in the nano scale. A direct cell viability assay using ST-2 cells demonstrated cell proliferation after 7 days of incubation for all prepared fiber mats, confirming their suitability as potential candidates for bone tissue engineering and wound healing applications.
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Affiliation(s)
- Zulema Vargas Osorio
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, 911 50, SLOVAKIA
| | - Florian Florian Ruther
- Lehrstuhl für Biomaterialien, Friedrich-Alexander-Universitat Erlangen-Nurnberg, Ulrich-Schalk-Straße, 3, Erlangen, Bayern, 91056, GERMANY
| | - Si Chen
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, 911 50, SLOVAKIA
| | - Susanta Sengupta
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, 91150, SLOVAKIA
| | - Liliana Liverani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstraße 6, Erlangen, 91058, GERMANY
| | - Martin Michálek
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, 91150, SLOVAKIA
| | - Dušan Galusek
- Centre for Functional and Surface Functionalized Glass, Joint Glass Centre of the IIC SAS TnUAD FChPT STU, Študentská 2, Trenčín, 911 50, SLOVAKIA
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-Universitat Erlangen-Nurnberg, Cauerstraße 6, Erlangen, Bayern, 91054, GERMANY
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18
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Gritsch L, Granel H, Charbonnel N, Jallot E, Wittrant Y, Forestier C, Lao J. Tailored therapeutic release from polycaprolactone-silica hybrids for the treatment of osteomyelitis: antibiotic rifampicin and osteogenic silicates. Biomater Sci 2022; 10:1936-1951. [PMID: 35258044 DOI: 10.1039/d1bm02015c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The treatment of osteomyelitis, a destructive inflammatory process caused by bacterial infections to bone tissue, is one of the most critical challenges of orthopedics and bone regenerative medicine. The standard treatment consists of intense antibiotic therapies combined with tissue surgical debridement and the application of a bone defect filler material. Unfortunately, commercially available candidates, such as gentamicin-impregnated polymethylmethacrylate cements, possess very poor pharmacokinetics (i.e., 24 hours burst release) and little to no regenerative potential. Fostered by the intrinsic limitations associated with conventional treatments, alternative osteostimulative biomaterials with local drug delivery have recently started to emerge. In this study, we propose the use of a polycaprolactone-silica sol-gel hybrid material as carrier for the delivery of rifampicin, an RNA-polymerase blocker often used to treat bone infections, and of osteostimulative silicate ions. The release of therapeutic agents from the material is dual, offering two separate and simultaneous effects, and decoupled, meaning that the kinetics of rifampicin and silicate releases are independent from each other. A series of hybrid formulations with increasing amounts of rifampicin was prepared. The antibiotic loading efficacy, as well as the release profiles of rifampicin and silicates were measured. The characterization of cell viability and differentiation of rat primary osteoblasts and antibacterial performance were also performed. Gram-positive Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa and Escherichia coli were selected due to their high occurrence in bone infections. Results confirmed that rifampicin can be successfully loaded within the hybrids without significant degradation and that it is possible to tailor the antibiotic release according to need. Once in a physiological environment, the rapid release of silicates was associated with optimal cell proliferation and the overexpression of osteoblastic differentiation. Simultaneously, rifampicin is delivered over the course of several weeks with significant inhibition of all tested strains. In particular, the materials caused a growth reduction of 7-10 orders of magnitude in Staphylococcus aureus, the major strain responsible for osteomyelitis worldwide. Our data strongly suggest that PCL/silica hybrids are a very promising candidate to develop bone fillers with superior biological performance compared to currently available options. Thanks to their unique synthesis route and their dual tailored release they can promote bone regeneration while reducing the risk of infection for several weeks upon implantation.
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Affiliation(s)
- Lukas Gritsch
- Laboratoire de Physique de Clermont, UMR CNRS 6533, Université Clermont Auvergne, 4 avenue Blaise Pascal, 63178 Aubière, France.
| | - Henri Granel
- Unité de Nutrition Humaine UMR 1019 INRAE, Université Clermont Auvergne, 28 place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Nicolas Charbonnel
- Université Clermont Auvergne, CNRS, LMGE, 63000 Clermont-Ferrand, France
| | - Edouard Jallot
- Laboratoire de Physique de Clermont, UMR CNRS 6533, Université Clermont Auvergne, 4 avenue Blaise Pascal, 63178 Aubière, France.
| | - Yohann Wittrant
- Unité de Nutrition Humaine UMR 1019 INRAE, Université Clermont Auvergne, 28 place Henri-Dunant, 63001 Clermont-Ferrand, France
| | | | - Jonathan Lao
- Laboratoire de Physique de Clermont, UMR CNRS 6533, Université Clermont Auvergne, 4 avenue Blaise Pascal, 63178 Aubière, France.
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19
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Nanocomposite electrospun fibers of poly(ε-caprolactone)/bioactive glass with shape memory properties. Bioact Mater 2022; 11:230-239. [PMID: 34977428 PMCID: PMC8668438 DOI: 10.1016/j.bioactmat.2021.09.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 02/06/2023] Open
Abstract
Electrospun fibers of shape memory triethoxysilane-terminated poly(epsilon-caprolactone) (PCL-TES) loaded with bioactive glasses (BG) are here presented. Unloaded PCL-TES, as well as PCL/BG nanocomposite fibers, are also considered for comparison. It is proposed that hydrolysis and condensation reactions take place between triethoxysilane groups of the polymer and the silanol groups at the BG particle surface, thus generating additional crosslinking points with respect to those present in the PCL-TES system. The as-spun PCL-TES/BG fibers display excellent shape memory properties, in terms of shape fixity and shape recovery ratios, without the need of a thermal crosslinking treatment. BG particles confer in vitro bioactivity to PCL-based nanocomposite fibers and favor the precipitation of hydroxycarbonate apatite on the fiber surface. Preliminary cytocompatibility tests demonstrate that the addition of BG particles to PCL-based polymer does not inhibit ST-2 cell viability. This novel approach of using bioactive glasses not only for their biological properties, but also for the enhancement of shape memory properties of PCL-based polymers, widens the versatility and suitability of the obtained composite fibers for a huge portfolio of biomedical applications.
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20
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Sadek K, Mamdouh W, Habib SI, El Deftar M, Habib ANA. In Vitro Biological Evaluation of a Fabricated Polycaprolactone/Pomegranate Electrospun Scaffold for Bone Regeneration. ACS OMEGA 2021; 6:34447-34459. [PMID: 34963930 PMCID: PMC8697390 DOI: 10.1021/acsomega.1c04608] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
Different scaffold biomaterials are being investigated as a solution for bone loss due to disease or trauma. The aim of this study is the fabrication, characterization, and in vitro biological evaluation of a novel polycaprolactone (PCL) nanoscaffold incorporating pomegranate peel extract (PG) for bone regeneration. Using electrospinning, three groups of scaffolds were prepared: the control group PCL and two groups of PCL with PG concentrations (11 and 18 weight %). The antioxidant activity and the total phenolic content (TPC) of the fabricated nanoscaffolds were evaluated, in addition to the porosity and degradation measurement. Cultured osteoblasts derived from rabbit bone marrow mesenchymal stem cells were used for the assessment of cell proliferation and attachment on the scaffold's surface. Scaffolds' characterization showed uniform nanofibers (NFs) with a fiber diameter range of 149-168 nm. Meanwhile, higher antioxidant activity and TPC of the PG groups were detected. Furthermore, total porosities of 59 and 62% were determined for the PCL-PG scaffolds. An increased degradation rate and significant improvement in cell proliferation and cell attachment were revealed for the PCL-PG fabricated scaffolds. Such incorporation of natural food waste, PG, in PCL NFs offered novel PCL-PG scaffolds as a promising candidate for bone regeneration applications.
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Affiliation(s)
- Khadiga
M. Sadek
- Biomaterials
Department, Faculty of Dentistry, Cairo
University, 11 El-Saraya
St.—Manial, Cairo, 11562 Cairo, Egypt
| | - Wael Mamdouh
- Department
of Chemistry, School of Sciences and Engineering (SSE), The American University in Cairo, AUC Avenue, 11835 New Cairo, Egypt
| | - Shaymaa I. Habib
- Biomaterials
Department, Faculty of Dentistry, Cairo
University, 11 El-Saraya
St.—Manial, Cairo, 11562 Cairo, Egypt
| | - Mervat El Deftar
- Pathology
Department, Tissue Culture Unit, National Cancer Institute, Cairo University, Kornish El-Nile, Fom El- Khaleg, 11796 Cairo, Egypt
| | - A. Nour A. Habib
- Biomaterials
Department, Faculty of Dentistry, Cairo
University, 11 El-Saraya
St.—Manial, Cairo, 11562 Cairo, Egypt
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21
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Tabia Z, Akhtach S, Bricha M, El Mabrouk K. Tailoring the biodegradability and bioactivity of green-electrospun polycaprolactone fibers by incorporation of bioactive glass nanoparticles for guided bone regeneration. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110841] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Santos APLA, Deokaran GO, Costa CV, Gama LILM, Mazzini Júnior EG, de Assis AML, de Freitas JD, de Araujo WR, Dias RP, da Silva JCS, Costa LMM, Ribeiro AS. A "turn-off" fluorescent sensor based on electrospun polycaprolactone nanofibers and fluorene(bisthiophene) derivative for nitroaromatic explosive detection. Forensic Sci Int 2021; 329:111056. [PMID: 34736045 DOI: 10.1016/j.forsciint.2021.111056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/21/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022]
Abstract
The preparation of fluorene(bisthiophene)-based fluorescent nanofibers for nitroaromatic explosive detection provides a convenient rapid and low-cost strategy aiming at forensic applications. Polycaprolactone (PCL) and fluorene(bisthiophene) derivative (FBT) nanofibers were obtained by electrospinning technique as a free-standing mat and characterized by SEM, FTIR, thermal analysis and fluorescence spectroscopy. The PCL/FBT nanofibers presented high sensitivity towards 2,4,6-trinitrotoluene (TNT) and picric acid (PA), with fluorescence quenching (turn-off mechanism), and selectivity to another kind of explosives. The free-standing mats were used as a cloth strip that was swiped on surfaces contaminated with TNT traces allowing its visual detection under UV light source. These findings are particularly important for the development of a facile and promising strategy to assembly portable optical devices for nitroaromatic explosive detection.
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Affiliation(s)
- Anna Paula L A Santos
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil
| | - Gerard O Deokaran
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil; Criminalistics Institute of Alagoas, 57020-070, Maceió, AL, Brazil
| | - Cristiane V Costa
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil
| | - Lillia I L M Gama
- Portable Chemical Sensors Lab, Institute of Chemistry, State University of Campinas, 13083-970, Campinas, SP, Brazil
| | - Edu G Mazzini Júnior
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil
| | - Alexandro M L de Assis
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil; Technical and Scientific Section of Alagoas, Federal Police, 57025-080, Maceió, AL, Brazil
| | | | - William R de Araujo
- Portable Chemical Sensors Lab, Institute of Chemistry, State University of Campinas, 13083-970, Campinas, SP, Brazil
| | - Roberta P Dias
- Federal University of Pernambuco, Campus Agreste, 55014-900 Caruaru, PE, Brazil
| | - Júlio C S da Silva
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil
| | - Ligia M M Costa
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil
| | - Adriana S Ribeiro
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A. C. Simões, 57072-970 Maceió, AL, Brazil.
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23
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Random and aligned electrospun poly(ε-caprolactone) (PCL)/poly(1,8-octanediol-co-citrate) (POC) fiber mats for cardiac tissue engineering using benign solvents. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Sharma D, Saha S, Satapathy BK. Recent advances in polymer scaffolds for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:342-408. [PMID: 34606739 DOI: 10.1080/09205063.2021.1989569] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The review provides insights into current advancements in electrospinning-assisted manufacturing for optimally designing biomedical devices for their prospective applications in tissue engineering, wound healing, drug delivery, sensing, and enzyme immobilization, and others. Further, the evolution of electrospinning-based hybrid biomedical devices using a combined approach of 3 D printing and/or film casting/molding, to design dimensionally stable membranes/micro-nanofibrous assemblies/patches/porous surfaces, etc. is reported. The influence of various electrospinning parameters, polymeric material, testing environment, and other allied factors on the morphological and physico-mechanical properties of electrospun (nano-/micro-fibrous) mats (EMs) and fibrous assemblies have been compiled and critically discussed. The spectrum of operational research and statistical approaches that are now being adopted for efficient optimization of electrospinning process parameters so as to obtain the desired response (physical and structural attributes) has prospectively been looked into. Further, the present review summarizes some current limitations and future perspectives for modeling architecturally novel hybrid 3 D/selectively textured structural assemblies, such as biocompatible, non-toxic, and bioresorbable mats/scaffolds/membranes/patches with apt mechanical stability, as biological substrates for various regenerative and non-regenerative therapeutic devices.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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Elkhouly H, Mamdouh W, El-Korashy DI. Electrospun nano-fibrous bilayer scaffold prepared from polycaprolactone/gelatin and bioactive glass for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:111. [PMID: 34453628 PMCID: PMC8403125 DOI: 10.1007/s10856-021-06588-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
This work is focused on integrating nanotechnology with bone tissue engineering (BTE) to fabricate a bilayer scaffold with enhanced biological, physical and mechanical properties, using polycaprolactone (PCL) and gelatin (Gt) as the base nanofibrous layer, followed by the deposition of a bioactive glass (BG) nanofibrous layer via the electrospinning technique. Electrospun scaffolds were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy. Surface area and porosity were evaluated using the nitrogen adsorption method and mercury intrusion porosimetry. Moreover, scaffold swelling rate, degradation rate and in vitro bioactivity were examined in simulated body fluid (SBF) for up to 14 days. Mechanical properties of the prepared scaffolds were evaluated. Cell cytotoxicity was assessed using MRC-5 cells. Analyses showed successful formation of bead-free uniform fibers and the incorporation of BG nanoparticles within fibers. The bilayer scaffold showed enhanced surface area and total pore volume in comparison to the composite single layer scaffold. Moreover, a hydroxyapatite-like layer with a Ca/P molar ratio of 1.4 was formed after 14 days of immersion in SBF. Furthermore, its swelling and degradation rates were significantly higher than those of pure PCL scaffold. The bilayer's tensile strength was four times higher than that of PCL/Gt scaffold with greatly enhanced elongation. Cytotoxicity test revealed the bilayer's biocompatibility. Overall analyses showed that the incorporation of BG within a bilayer scaffold enhances the scaffold's properties in comparison to those of a composite single layer scaffold, and offers potential avenues for development in the field of BTE.
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Affiliation(s)
- Hend Elkhouly
- Biomaterials Department, Faculty of Dentistry, Ain Shams University, Organization of African Unity St., El-Qobba Bridge, Al Waili, Cairo, 11566, Egypt
| | - Wael Mamdouh
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo (AUC), AUC Avenue, P.O. Box 74, New Cairo, 11835, Egypt.
| | - Dalia I El-Korashy
- Biomaterials Department, Faculty of Dentistry, Ain Shams University, Organization of African Unity St., El-Qobba Bridge, Al Waili, Cairo, 11566, Egypt
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Idumah CI, Ezika AC. Recent advancements in hybridized polymer nano-biocomposites for tissue engineering. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1960344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer and Textile Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
| | - Anthony Chidi Ezika
- Institute of NanoEngineering Research (INER) and Department of Chemical, Metallurgical and Materials Engineering, Faculty of Engineering and The Built Environment, Tshwane University of Technology, Pretoria, South Africa
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Mosher CZ, Brudnicki PAP, Gong Z, Childs HR, Lee SW, Antrobus RM, Fang EC, Schiros TN, Lu HH. Green electrospinning for biomaterials and biofabrication. Biofabrication 2021; 13. [PMID: 34102612 DOI: 10.1088/1758-5090/ac0964] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/08/2021] [Indexed: 11/12/2022]
Abstract
Green manufacturing has emerged across industries, propelled by a growing awareness of the negative environmental and health impacts associated with traditional practices. In the biomaterials industry, electrospinning is a ubiquitous fabrication method for producing nano- to micro-scale fibrous meshes that resemble native tissues, but this process traditionally utilizes solvents that are environmentally hazardous and pose a significant barrier to industrial scale-up and clinical translation. Applying sustainability principles to biomaterial production, we have developed a 'green electrospinning' process by systematically testing biologically benign solvents (U.S. Food and Drug Administration Q3C Class 3), and have identified acetic acid as a green solvent that exhibits low ecological impact (global warming potential (GWP) = 1.40 CO2eq. kg/L) and supports a stable electrospinning jet under routine fabrication conditions. By tuning electrospinning parameters, such as needle-plate distance and flow rate, we updated the fabrication of widely utilized biomedical polymers (e.g. poly-α-hydroxyesters, collagen), polymer blends, polymer-ceramic composites, and growth factor delivery systems. Resulting 'green' fibers and composites are comparable to traditional meshes in terms of composition, chemistry, architecture, mechanical properties, and biocompatibility. Interestingly, material properties of green synthetic fibers are more biomimetic than those of traditionally electrospun fibers, doubling in ductility (91.86 ± 35.65 vs. 45 ± 15.07%,n= 10,p< 0.05) without compromising yield strength (1.32 ± 0.26 vs. 1.38 ± 0.32 MPa) or ultimate tensile strength (2.49 ± 0.55 vs. 2.36 ± 0.45 MPa). Most importantly, green electrospinning proves advantageous for biofabrication, rendering a greater protection of growth factors during fiber formation (72.30 ± 1.94 vs. 62.87 ± 2.49% alpha helical content,n= 3,p< 0.05) and recapitulating native ECM mechanics in the fabrication of biopolymer-based meshes (16.57 ± 3.92% ductility, 33.38 ± 30.26 MPa elastic modulus, 1.30 ± 0.19 MPa yield strength, and 2.13 ± 0.36 MPa ultimate tensile strength,n= 10). The eco-conscious approach demonstrated here represents a paradigm shift in biofabrication, and will accelerate the translation of scalable biomaterials and biomimetic scaffolds for tissue engineering and regenerative medicine.
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Affiliation(s)
- Christopher Z Mosher
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Philip A P Brudnicki
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Zhengxiang Gong
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Hannah R Childs
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Sang Won Lee
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Romare M Antrobus
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Elisa C Fang
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Theanne N Schiros
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, United States of America.,Science and Mathematics Department, Fashion Institute of Technology, New York, NY 10001, United States of America
| | - Helen H Lu
- Biomaterials and Interface Tissue Engineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America.,Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, United States of America
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Rather AH, Wani TU, Khan RS, Pant B, Park M, Sheikh FA. Prospects of Polymeric Nanofibers Loaded with Essential Oils for Biomedical and Food-Packaging Applications. Int J Mol Sci 2021; 22:4017. [PMID: 33924640 PMCID: PMC8069027 DOI: 10.3390/ijms22084017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 02/08/2023] Open
Abstract
Essential oils prevent superbug formation, which is mainly caused by the continuous use of synthetic drugs. This is a significant threat to health, the environment, and food safety. Plant extracts in the form of essential oils are good enough to destroy pests and fight bacterial infections in animals and humans. In this review article, different essential oils containing polymeric nanofibers fabricated by electrospinning are reviewed. These nanofibers containing essential oils have shown applications in biomedical applications and as food-packaging materials. This approach of delivering essential oils in nanoformulations has attracted considerable attention in the scientific community due to its low price, a considerable ratio of surface area to volume, versatility, and high yield. It is observed that the resulting nanofibers possess antimicrobial, anti-inflammatory, and antioxidant properties. Therefore, they can reduce the use of toxic synthetic drugs that are utilized in the cosmetics, medicine, and food industries. These nanofibers increase barrier properties against light, oxygen, and heat, thereby protecting and preserving the food from oxidative damage. Moreover, the nanofibers discussed are introduced with naturally derived chemical compounds in a controlled manner, which simultaneously prevents their degradation. The nanofibers loaded with different essential oils demonstrate an ability to increase the shelf-life of various food products while using them as active packaging materials.
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Affiliation(s)
- Anjum Hamid Rather
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Taha Umair Wani
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Rumysa Saleem Khan
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Faheem A. Sheikh
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
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Oztemur J, Yalcin-Enis I. Development of biodegradable webs of PLA/PCL blends prepared via electrospinning: Morphological, chemical, and thermal characterization. J Biomed Mater Res B Appl Biomater 2021; 109:1844-1856. [PMID: 33847451 DOI: 10.1002/jbm.b.34846] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/23/2021] [Accepted: 03/31/2021] [Indexed: 01/02/2023]
Abstract
Biodegradable polymers have a mean role to mimic native tissues and allow cells to penetrate, grow, and proliferate with their advanced features in tissue engineering applications. The physiological, chemical, mechanical, and biological qualities of the surfaces, which are presented from biodegradable polymers, affect the final properties of the scaffolds. In this study, it is aimed to produce fibrous webs by electrospinning method for tissue engineering applications using two different biopolymers, polylactic acid (PLA) and polycaprolactone (PCL). These polymers are used either alone or in a blended form (PLA/PCL, 1/1 wt.). Within the scope of the study, polymer concentrations (6, 8 and 10%) and solvent types (used for chloroform/ethanol/acetic acid mixture, PCL and PLA/PCL mixtures, and chloroform/acetone, PLA) vary as solution parameters. Fibrous webs are investigated in terms of morphological, chemical, and thermal characteristics. Results show continuous fibers are examined for 8 or 10% polymer concentrations with an average fiber diameter of 1.3-2.7 μm and pore area of 4-9 μm2 . No fiber formation is observed in sample groups with a polymer concentration of 6% and beaded structures are formed. Water contact angle analysis proves the hydrophobic properties of PLA and PCL, whereas Fourier-transform infrared results show there is no solution residue on the surfaces, so there is no toxic effect. Also, in differential scanning calorimetry analysis, the characteristic crystallization peaks of the polymers are recognized, and when the polymers are in a blend, it beholds that they have effects on each other's crystallization.
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Affiliation(s)
- Janset Oztemur
- Textile Engineering Department, Istanbul Technical University, Istanbul, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Istanbul Technical University, Istanbul, Turkey
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Opálková Šišková A, Bučková M, Kroneková Z, Kleinová A, Nagy Š, Rydz J, Opálek A, Sláviková M, Eckstein Andicsová A. The Drug-Loaded Electrospun Poly(ε-Caprolactone) Mats for Therapeutic Application. NANOMATERIALS 2021; 11:nano11040922. [PMID: 33916638 PMCID: PMC8066245 DOI: 10.3390/nano11040922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 11/16/2022]
Abstract
Diclofenac sodium salt (DSS)-loaded electrospun nanofiber mats on the base of poly(ε-caprolactone) (PCL) were investigated as biocompatible nanofibrous mats for medical applications with the ability to inhibit bacterial infections. The paper presents the characteristics of fibrous mats made by electrospinning and determines the effect of medicament on the fiber morphology, chemical, mechanical and thermal properties, as well as wettability. PCL and DSS-loaded PCL nanofibrous mats were characterized using scanning electron microscopy, transmission electron microscopy, attenuated total reflectance-Fourier transform infrared spectrometry, dynamic mechanical analysis, and contact angle measurements. Electron paramagnetic resonance measurements confirmed the lifetime of DSS before and after application of high voltage during the electrospinning process. In vitro biocompatibility was studied, and it was proved to be of good viability with ~92% of the diploid human cells culture line composed of lung fibroblast (MRC 5) after 48 h of incubation. Moreover, the significant activity of DSS-loaded nanofibers against cancer cells, Ca Ski and HeLa, was established as well. It was shown that 12.5% (m/V) is the minimal concentration for antibacterial activity when more than 99% of Escherichia coli (Gram-negative) and 99% of Staphylococcus aureus (Gram-positive) have been exterminated.
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Affiliation(s)
- Alena Opálková Šišková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia; (Z.K.); (A.K.)
- Correspondence: (A.O.S.); (A.E.A.); Tel.: +421-2-3229-4301 (A.O.S.); +421-2-3229-4357 (A.E.A.)
| | - Mária Bučková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 51 Bratislava, Slovakia;
| | - Zuzana Kroneková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia; (Z.K.); (A.K.)
| | - Angela Kleinová
- Polymer Institute of Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia; (Z.K.); (A.K.)
| | - Štefan Nagy
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 13 Bratislava, Slovakia; (Š.N.); (A.O.)
| | - Joanna Rydz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowska 34, 41-800 Zabrze, Poland;
| | - Andrej Opálek
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 13 Bratislava, Slovakia; (Š.N.); (A.O.)
| | - Monika Sláviková
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 05 Bratislava, Slovakia;
| | - Anita Eckstein Andicsová
- Polymer Institute of Slovak Academy of Sciences, Dúbravská Cesta 9, 845 41 Bratislava, Slovakia; (Z.K.); (A.K.)
- Correspondence: (A.O.S.); (A.E.A.); Tel.: +421-2-3229-4301 (A.O.S.); +421-2-3229-4357 (A.E.A.)
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Piegat A, Niemczyk A, Boccaccini AR, El Fray M, Liverani L. Hierarchical multi-layered scaffolds based on electrofluidodynamic processes for tissue engineering. Biomed Mater 2021; 16. [PMID: 33691298 DOI: 10.1088/1748-605x/abed96] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/10/2021] [Indexed: 12/14/2022]
Abstract
The aim of this study was to obtain hierarchical scaffolds combining 3D printing and two electrofluidodynamic methods. The multi-layered scaffold is composed by 3D printed struts, electrospun fibers obtained from poly(ε-caprolactone) (PCL) and electrosprayed spheres produced from hydrophobically modified chitosan, namely chitosan grafted with linoleic acid (CHLA). Since CHLA has been used for the first time in the electrospraying (EDS) process, the formation of spheres needed an optimization process. The EDS process was strongly affected by the solvent mixture composition, concentration of acid used for CHLA dissolution and solution flow rate. By using the optimized electrospraying conditions, uniformly distributed spheres have been obtained, decorating struts and nanofibers. Preliminary biological tests with mouse preosteoblasts (MC3T3-E1) were performed to investigate the effect of the hierarchical scaffold on cell seeding efficacy. Results showed that the hierarchical structure enhances cell seeding efficacy, respect to the 3D printed struts alone, preventing that the cells passed through the struts during the seeding. Moreover, the addition of the electrosprayed nanoparticles does not affect the cell seeding efficiency. The versatility of the proposed structure, with the added value of CHLA nanoparticles decoration could be suitable for several applications in tissue engineering, mainly related to drug delivery systems.
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Affiliation(s)
- Agnieszka Piegat
- Faculty of Chemical Technology and Engineering, Department of Polymer and Biomaterials ScienceDepartment of Polymer and Biomaterials Science, West Pomeranian University of Technology, Piastow Ave 45, Szczecin, 70-310, POLAND
| | - Agata Niemczyk
- Department of Materials Technology, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 19 Piastow Ave, Szczecin, 70-310, Poland, 19 Piastow Ave, Szczecin, 70-310, Poland, Szczecin, 70-310, POLAND
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, Erlangen, D-91058, GERMANY
| | - Miroslawa El Fray
- Faculty of Chemical Technology and Engineering, Department of Polymer and Biomaterials ScienceDepartment of Polymer and Biomaterials Science, West Pomeranian University of Technology, Piastów Ave, Szczecin, 70-310, POLAND
| | - Liliana Liverani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, Erlangen, 91058 , GERMANY
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Beisbayeva Z, Zhanbassynova A, Kulzhanova G, Mukasheva F, Erisken C. Change in Collagen Fibril Diameter Distribution of Bovine Anterior Cruciate Ligament upon Injury Can Be Mimicked in a Nanostructured Scaffold. Molecules 2021; 26:molecules26051204. [PMID: 33668154 PMCID: PMC7956598 DOI: 10.3390/molecules26051204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 11/24/2022] Open
Abstract
More than 200,000 people are suffering from Anterior Cruciate Ligament (ACL) related injuries each year in the US. There is an unmet clinical demand for improving biological attachment between grafts and the host tissue in addition to providing mechanical support. For biological graft integration, it is important to provide a physiologically feasible environment for the host cells to enable them to perform their duties. However, behavior of cells during ACL healing and the mechanism of ACL healing is not fully understood partly due to the absence of appropriate environment to test cell behavior both in vitro and in vivo. This study aims at (i) investigating the change in fibril diameter of bovine ACL tissue upon injury and (ii) fabricating nanofiber-based scaffolds to represent the morphology and structure of healthy and injured ACL tissues. We hypothesized that distribution and mean diameter of ACL fibrils will be altered upon injury. Findings revealed that the collagen fibril diameter distribution of bovine ACL changed from bimodal to unimodal upon injury with subsequent decrease in mean diameter. Polycaprolactone (PCL) scaffold fiber diameter distribution exhibited similar bimodal and unimodal distribution behavior to qualitatively represent the cases of healthy and injured ACL, respectively. The native ACL tissue demonstrated comparable modulus values only with the aligned bimodal PCL scaffolds. There was significant difference between mechanical properties of aligned bimodal and unaligned unimodal PCL scaffolds. We believe that the results obtained from measurements of diameter of collagen fibrils of native bovine ACL tissue can serve as a benchmark for scaffold design.
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Affiliation(s)
- Zhuldyz Beisbayeva
- Department of Chemical and Materials Engineering, School of Engineering & Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr, Nur-Sultan 010000, Kazakhstan; (Z.B.); (A.Z.); (F.M.)
| | - Ainur Zhanbassynova
- Department of Chemical and Materials Engineering, School of Engineering & Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr, Nur-Sultan 010000, Kazakhstan; (Z.B.); (A.Z.); (F.M.)
| | - Gulzada Kulzhanova
- Department of Biological Sciences, Nazarbayev University, 53 Kabanbay Batyr, Nur-Sultan 010000, Kazakhstan;
| | - Fariza Mukasheva
- Department of Chemical and Materials Engineering, School of Engineering & Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr, Nur-Sultan 010000, Kazakhstan; (Z.B.); (A.Z.); (F.M.)
| | - Cevat Erisken
- Department of Chemical and Materials Engineering, School of Engineering & Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr, Nur-Sultan 010000, Kazakhstan; (Z.B.); (A.Z.); (F.M.)
- Correspondence:
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Cantalice JDDA, Mazzini Júnior EG, Freitas JDD, Silva RCD, Faez R, Costa LMM, Ribeiro AS. Polyaniline-based electrospun polycaprolactone nanofibers: preparation and characterization. POLIMEROS 2021. [DOI: 10.1590/0104-1428.09320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sergi R, Cannillo V, Boccaccini AR, Liverani L. A New Generation of Electrospun Fibers Containing Bioactive Glass Particles for Wound Healing. MATERIALS 2020; 13:ma13245651. [PMID: 33322335 PMCID: PMC7763513 DOI: 10.3390/ma13245651] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 01/10/2023]
Abstract
Chitosan fibers blended with polyethylene oxide (CHIT_PEO) and crosslinked with genipin were fabricated by electrospinning technique. Subsequently, CHIT_PEO bioactive glass composite electrospun mats were fabricated with the aim to achieve flexible structures with adequate mechanical properties and improved biological performance respect to CHIT_PEO fibers, for potential applications in wound healing. Three different compositions of bioactive glasses (BG) were selected and investigated: 45S5 BG, a Sr and Mg containing bioactive glass (BGMS10) and a Zn-containing bioactive glass (BGMS_2Zn). Particulate BGs (particles size < 20 μm) were separately added to the starting CHIT_PEO solution before electrospinning. The two recently developed bioactive glasses (BGMS10 and BGMS_2Zn) showed very promising biological properties in terms of bioactivity and cellular viability; thus, such compositions were added for the first time to CHIT_PEO solution to fabricate composite electrospun mats. The incorporation of bioactive glass particles and their distribution into CHIT_PEO fibers were assessed by SEM and FTIR analyses. Furthermore, CHIT_PEO composite electrospun mats showed improved mechanical properties in terms of Young’s Modulus compared to neat CHIT_PEO fibers; on the contrary, the values of tensile strain at break (%) were comparable. Biological performance in terms of cellular viability was investigated by means of WST-8 assay and CHIT_PEO composite electrospun mats showed cytocompatibility and the desired cellular viability.
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Affiliation(s)
- Rachele Sergi
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy; (R.S.); (V.C.)
| | - Valeria Cannillo
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy; (R.S.); (V.C.)
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
| | - Liliana Liverani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
- Correspondence: ; Tel.: +49-(0)9131-85-28603
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35
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Da Silva BA, Valério A, Cesca K, Hotza D, Gómez González SY. Electrospun Polycaprolactone Scaffolds Using an Ionic Liquid as Alternative Solvent: Morphometric, Mechanical and Biological Properties. ChemistrySelect 2020. [DOI: 10.1002/slct.202002399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bernardo A. Da Silva
- Department of Chemical Engineering and Food Engineering (EQA) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC Brazil
| | - Alexsandra Valério
- Department of Chemical Engineering and Food Engineering (EQA) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC Brazil
| | - Karina Cesca
- Department of Chemical Engineering and Food Engineering (EQA) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC Brazil
| | - Dachamir Hotza
- Department of Chemical Engineering and Food Engineering (EQA) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC Brazil
| | - Sergio Yesid Gómez González
- Department of Chemical Engineering and Food Engineering (EQA) Federal University of Santa Catarina (UFSC) 88040-900 Florianópolis, SC Brazil
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36
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Schuhladen K, Mukoo P, Liverani L, Neščáková Z, Boccaccini AR. Manuka honey and bioactive glass impart methylcellulose foams with antibacterial effects for wound-healing applications. ACTA ACUST UNITED AC 2020; 15:065002. [PMID: 32268322 DOI: 10.1088/1748-605x/ab87e5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Wound dressings able to deliver topically bioactive molecules represent a new generation of wound-regeneration therapies. In this article, foams based on methylcellulose cross-linked with Manuka honey were used as a platform to deliver borate bioactive glass particles doped additionally with copper. Borate bioactive glasses are of great interest in wound-healing applications due to a combination of favorable features, such as angiogenic and antibacterial properties. The multifunctional composite providing the dual effect of the bioactive glass and Manuka honey was produced by freeze-drying, and the resulting foams exhibit suitable morphology characterized by high porosity. Moreover, the performed tests showed improved wettability and mechanical performance with the addition of bioactive glass particles. Dissolution studies using simulated body fluid and cell biology tests using relevant skin cells further proved the excellent bioactivity and positive effects of the foams on cell proliferation and migration. Most interestingly, by the dual release of Manuka honey and ions from the copper-doped bioactive glass, an antibacterial effect against E. coli and S. aureus was achieved. Therefore, the multifunctional foams showed promising outcomes as potential wound dressings for the treatment of infected wounds.
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Affiliation(s)
- Katharina Schuhladen
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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37
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Electrospun PCL Fiber Mats Incorporating Multi-Targeted B and Co Co-Doped Bioactive Glass Nanoparticles for Angiogenesis. MATERIALS 2020; 13:ma13184010. [PMID: 32927805 PMCID: PMC7557727 DOI: 10.3390/ma13184010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/25/2020] [Accepted: 09/01/2020] [Indexed: 12/12/2022]
Abstract
Vascularization is necessary in tissue engineering to keep adequate blood supply in order to maintain the survival and growth of new tissue. The synergy of biologically active ions with multi-target activity may lead to superior angiogenesis promotion in comparison to single-target approaches but it has been rarely investigated. In this study, polycaprolactone (PCL) fiber mats embedded with B and Co co-doped bioactive glass nanoparticles (BCo.BGNs) were fabricated as a tissue regeneration scaffold designed for promoting angiogenesis. BCo.NBGs were successfully prepared with well-defined spherical shape using a sol-gel method. The PCL fiber mats embedding co-doped bioactive glass nanoparticles were fabricated by electrospinning using benign solvents. The Young’s moduli of the nanoparticle containing PCL fiber mats were similar to those of the neat fiber mats and suitable for scaffolds utilized in soft tissue repair approaches. The mats also showed non-cytotoxicity to ST-2 cells. PCL fiber mats containing BCo.BGNs with a relatively high content of B and Co promoted the secretion of vascular endothelial growth factor to a greater extent than PCL fiber mats with a relatively low B and Co contents, which demonstrates the potential of dual ion release (B and Co) from bioactive glasses to enhance angiogenesis in soft tissue engineering.
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38
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Fluorescent polymer nanofibers based on polycaprolactone and dansyl derivatives for development of latent fingerprints. J Appl Polym Sci 2020. [DOI: 10.1002/app.49804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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39
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Fakhrali A, Semnani D, Salehi H, Ghane M. Electrospun
PGS
/
PCL
nanofibers: From straight to sponge and
spring‐like
morphology. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Aref Fakhrali
- Department of Textile Engineering Isfahan University of Technology Isfahan Iran
| | - Dariush Semnani
- Department of Textile Engineering Isfahan University of Technology Isfahan Iran
| | - Hossein Salehi
- Department of Anatomical Sciences and Molecular Biology, School of Medicine Isfahan University of Medical Sciences Isfahan Iran
| | - Mohammad Ghane
- Department of Textile Engineering Isfahan University of Technology Isfahan Iran
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40
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Incorporation of Bioactive Glasses Containing Mg, Sr, and Zn in Electrospun PCL Fibers by Using Benign Solvents. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10165530] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Poly(ε-caprolactone) (PCL) and PCL/bioactive glass composite fiber mats were produced by electrospinning technique. To improve cell adhesion and proliferation (i) 45S5, (ii) a bioactive glass containing strontium and magnesium oxides, and (iii) a bioactive glass containing zinc oxide were separately added to the starting PCL solution before electrospinning. A good incorporation of bioactive glass particles in PCL electrospun mats was confirmed by SEM and FTIR analyses. Bioactivity was evaluated by immersion of PCL mats and PCL/bioactive glass electrospun fiber mats in simulated body fluid (SBF). Bone murine stromal cells (ST-2) were employed in WST-8 assay to assess cell viability, cell morphology, and proliferation. The results showed that the presence of bioactive glass particles in the fibers enhances cell adhesion and proliferation compared to neat PCL mats. Furthermore, PCL/bioactive glass electrospun mats showed higher wound-healing rate (measured as cell migration rate) in vitro compared to neat PCL electrospun mats. Therefore, the characteristics of the PCL matrix combined with biological properties of bioactive glasses make PCL/bioactive glass composite ideal candidate for biomedical application.
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41
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Pérez-González GL, Villarreal-Gómez LJ, Olivas-Sarabia A, Valdez R, Cornejo-Bravo JM. Development, characterization, and in vitro assessment of multilayer mucoadhesive system containing dexamethasone sodium phosphate. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1798433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Graciela Lizeth Pérez-González
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Unidad Valle de las Palmas, Tijuana, México
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana, México
| | - Luis Jesús Villarreal-Gómez
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Unidad Valle de las Palmas, Tijuana, México
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana, México
| | - Amelia Olivas-Sarabia
- Centro de Nanociencias y Nanotecnología, Universidad Autónoma de México, Ensenada, México
| | - Ricardo Valdez
- Centro de Nanociencias y Nanotecnología, Universidad Autónoma de México, Ensenada, México
| | - José Manuel Cornejo-Bravo
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana, México
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42
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Schuhladen K, Raghu SNV, Liverani L, Neščáková Z, Boccaccini AR. Production of a novel poly(ɛ-caprolactone)-methylcellulose electrospun wound dressing by incorporating bioactive glass and Manuka honey. J Biomed Mater Res B Appl Biomater 2020; 109:180-192. [PMID: 32691500 DOI: 10.1002/jbm.b.34690] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/25/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022]
Abstract
Wound dressings produced by electrospinning exhibit a fibrous structure close to the one of the extracellular matrix of the skin. In this article, electrospinning was used to fabricate fiber mats based on the well-known biopolymers poly(ɛ-caprolactone) (PCL) and methylcellulose (MC) using benign solvents. The blend fiber mats were cross-linked using Manuka honey and additionally used as a biodegradable platform to deliver bioactive glass particles. It was hypothesized that a dual therapeutic effect can be achieved by combining Manuka honey and bioactive glass. Morphological and chemical examinations confirmed the successful production of submicrometric PCL-MC fiber mats containing Manuka honey and bioactive glass particles. The multifunctional fiber mats exhibited improved wettability and suitable mechanical properties (ultimate tensile strength of 3-5 MPa). By performing dissolution tests using simulated body fluid, the improved bioactivity of the fiber mats by the addition of bioactive glass was confirmed. Additionally, cell biology tests using human dermal fibroblasts and human keratinocytes-like HaCaT cells showed the potential of the fabricated composite fiber mats to be used as wound dressing, specially due to the ability to support wound closure influenced by the presence of bioactive glass. Moreover, based on the results of the antibacterial tests, it is apparent that an optimization of the electrospun fiber mats is required to develop suitable wound dressing for the treatment of infected wounds.
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Affiliation(s)
- Katharina Schuhladen
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Swathi N V Raghu
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Zuzana Neščáková
- Department of Biomaterials, FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
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43
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Arbade GK, Srivastava J, Tripathi V, Lenka N, Patro TU. Enhancement of hydrophilicity, biocompatibility and biodegradability of poly(ε-caprolactone) electrospun nanofiber scaffolds using poly(ethylene glycol) and poly(L-lactide-co-ε-caprolactone-co-glycolide) as additives for soft tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1648-1670. [PMID: 32402230 DOI: 10.1080/09205063.2020.1769799] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this study, poly(ε-caprolactone) (PCL) has been blended with a more hydrophilic poly(ethylene glycol) (PEG) and with a biocompatible block-co-polymer: poly(L-lactide-co-ε-caprolactone-co-glycolide) (PLCG) in order to improve hydrophilicity, biocompatibility and biodegradability of PCL. PCL and the blend solutions were subjected to electrospinning to produce nanofiber scaffolds by the addition of only 1 wt% of PEG and PLCG either singly or in combination in PCL to retain the mechanical properties of the scaffolds. PCL-PEG-PLCG ternary and two binary (PCL-PEG and PCL-PLCG) blend nanofiber scaffolds have been prepared for comparison. The resulting nanofibers showed a smooth and flaw-free surface and the diameter of the nanofibers displayed a normal distribution. The PCL-PEG nanofiber scaffold showed improved hydrophilicity [water contact angle (WCA) ∼84°] over pristine PCL (WCA ∼127°); while PCL-PLCG and PCL-PEG-PLCG scaffolds exhibited absolute wetting by water, likely due to high porosity. In vitro biocompatibility studies using gingival mesenchymal stem cells (gMSCs) suggested that, both the PCL and the blend scaffolds were biocompatible supporting cell-viability and growth of gMSCs following their seeding on these scaffolds. Biodegradation studies in phosphate buffer solution showed that the addition of PEG and PLCG in PCL increased the weight loss of scaffolds with time, indicating higher extent of biodegradation in the blend scaffolds and the weight loss followed the power law curve with time.
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Affiliation(s)
- Gajanan Kashinathrao Arbade
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Pune, Maharashtra, India.,National Centre for Cell Science, Pune, Maharashtra, India
| | | | | | - Nibedita Lenka
- National Centre for Cell Science, Pune, Maharashtra, India
| | - T Umasankar Patro
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Pune, Maharashtra, India
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44
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Electrospun PCL/PGS Composite Fibers Incorporating Bioactive Glass Particles for Soft Tissue Engineering Applications. NANOMATERIALS 2020; 10:nano10050978. [PMID: 32438673 PMCID: PMC7279550 DOI: 10.3390/nano10050978] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/08/2020] [Accepted: 05/15/2020] [Indexed: 01/28/2023]
Abstract
Poly(glycerol-sebacate) (PGS) and poly(epsilon caprolactone) (PCL) have been widely investigated for biomedical applications in combination with the electrospinning process. Among others, one advantage of this blend is its suitability to be processed with benign solvents for electrospinning. In this work, the suitability of PGS/PCL polymers for the fabrication of composite fibers incorporating bioactive glass (BG) particles was investigated. Composite electrospun fibers containing silicate or borosilicate glass particles (13-93 and 13-93BS, respectively) were obtained and characterized. Neat PCL and PCL composite electrospun fibers were used as control to investigate the possible effect of the presence of PGS and the influence of the bioactive glass particles. In fact, with the addition of PGS an increase in the average fiber diameter was observed, while in all the composite fibers, the presence of BG particles induced an increase in the fiber diameter distribution, without changing significantly the average fiber diameter. Results confirmed that the blended fibers are hydrophilic, while the addition of BG particles does not affect fiber wettability. Degradation test and acellular bioactivity test highlight the release of the BG particles from all composite fibers, relevant for all applications related to therapeutic ion release, i.e., wound healing. Because of weak interface between the incorporated BG particles and the polymeric fibers, mechanical properties were not improved in the composite fibers. Promising results were obtained from preliminary biological tests for potential use of the developed mats for soft tissue engineering applications.
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45
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Manakhov A, Permyakova E, Ershov S, Miroshnichenko S, Pykhtina M, Beklemishev A, Kovalskii A, Solovieva A. XPS Modeling of Immobilized Recombinant Angiogenin and Apoliprotein A1 on Biodegradable Nanofibers. NANOMATERIALS 2020; 10:nano10050879. [PMID: 32370165 PMCID: PMC7279301 DOI: 10.3390/nano10050879] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 01/07/2023]
Abstract
The immobilization of viable proteins is an important step in engineering efficient scaffolds for regenerative medicine. For example, angiogenin, a vascular growth factor, can be considered a neurotrophic factor, influencing the neurogenesis, viability, and migration of neurons. Angiogenin shows an exceptional combination of angiogenic, neurotrophic, neuroprotective, antibacterial, and antioxidant activities. Therefore, this protein is a promising molecule that can be immobilized on carriers used for tissue engineering, particularly for diseases that are complicated by neurotrophic and vascular disorders. Another highly important and viable protein is apoliprotein A1. Nevertheless, the immobilization of these proteins onto promising biodegradable nanofibers has not been tested before. In this work, we carefully studied the immobilization of human recombinant angiogenin and apoliprotein A1 onto plasma-coated nanofibers. We developed a new methodology for the quantification of the protein density of these proteins using X-ray photoelectron spectroscopy (XPS) and modeled the XPS data for angiogenin and apoliprotein A1 (Apo-A1). These findings were also confirmed by the analysis of immobilized Apo-A1 using fluorescent microscopy. The presented methodology was validated by the analysis of fibronectin on the surface of plasma-coated poly(ε-caprolactone) (PCL) nanofibers. This methodology can be expanded for other proteins and it should help to quantify the density of proteins on surfaces using routine XPS data treatment.
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Affiliation(s)
- Anton Manakhov
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Correspondence: ; Tel.: +7-915-8494059
| | - Elizaveta Permyakova
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
| | - Sergey Ershov
- Laboratory for the Physics of Advanced Materials (LPM), Department of Physics and Materials Science, University of Luxembourg, L-1511 Luxembourg, Luxembourg;
| | - Svetlana Miroshnichenko
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Mariya Pykhtina
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Anatoly Beklemishev
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Andrey Kovalskii
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia;
| | - Anastasiya Solovieva
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
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46
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Zhang H, Wang K, Gao T, Zhang R, Cai Z, Liu J, Ma H, Zhang W. Controlled release of bFGF loaded into electrospun core–shell fibrous membranes for use in guided tissue regeneration. Biomed Mater 2020; 15:035021. [DOI: 10.1088/1748-605x/ab7979] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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47
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Gritsch L, Liverani L, Lovell C, Boccaccini AR. Polycaprolactone Electrospun Fiber Mats Prepared Using Benign Solvents: Blending with Copper(II)‐Chitosan Increases the Secretion of Vascular Endothelial Growth Factor in a Bone Marrow Stromal Cell Line. Macromol Biosci 2020; 20:e1900355. [DOI: 10.1002/mabi.201900355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/08/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Lukas Gritsch
- Institute of BiomaterialsUniversity of Erlangen‐Nuremberg Cauerstraße 6 91058 Erlangen Germany
- Lucideon Ltd. Queens Road, Penkhull Stoke‐on‐Trent Staffordshire ST4 7LQ UK
| | - Liliana Liverani
- Institute of BiomaterialsUniversity of Erlangen‐Nuremberg Cauerstraße 6 91058 Erlangen Germany
| | - Christopher Lovell
- Lucideon Ltd. Queens Road, Penkhull Stoke‐on‐Trent Staffordshire ST4 7LQ UK
| | - Aldo R. Boccaccini
- Institute of BiomaterialsUniversity of Erlangen‐Nuremberg Cauerstraße 6 91058 Erlangen Germany
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48
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Bochicchio B, Barbaro K, De Bonis A, Rau JV, Pepe A. Electrospun poly(d,l-lactide)/gelatin/glass-ceramics tricomponent nanofibrous scaffold for bone tissue engineering. J Biomed Mater Res A 2020; 108:1064-1076. [PMID: 31967393 DOI: 10.1002/jbm.a.36882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/15/2022]
Abstract
Electrospun scaffolds are emerging as extracellular matrix (ECM)mimicking structures for tissue engineering thanks to their nanofibrous architecture. For the development of suitable electrospun scaffolds for bone tissue engineering, the addition of inorganic components has been implemented with the aim to confer important bioactivity like osteoinduction, osteointegration, and cell adhesion to the scaffolds. In this context, we propose a tricomponent electrospun scaffold composed of poly(d,l-lactide), gelatin and RKKP glass-ceramics. The bioactive RKKP glass-ceramic system has attracted interest, due to the presence of ions such as La3+ and Ta5+ , which turned out to be valuable as growth supporting agents for bones. In this work, RKKP glass-ceramics were embedded inside the microfibers of electrospun scaffolds and the structural and biological properties were investigated. Our results showed that the glass-ceramic microparticles were uniformly distributed in the fibrous structure of the scaffold. Furthermore, the glass-ceramics promoted biomineralization of the scaffolds and improved cell viability and osteogenic differentiation. The mineralized layer formed on RKKP-containing scaffolds after incubation in simulated body fluid medium has been shown to be hydroxyapatite by Raman spectroscopy and X-ray diffraction. The results on differentiation studies of canine adipose-derived mesenchymal stem cells grown on the electrospun scaffolds suggest that on varying the content of RKKP in the scaffold, it is possible to drive the differentiation toward chondrogenic or osteogenic commitment. The presence of ions, like La3+ and Ta5+ , in the RKKP embedded polymeric composite scaffolds could play a role in supporting cell growth and promoting differentiation.
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Affiliation(s)
- Brigida Bochicchio
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Katia Barbaro
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Rome, Italy
| | - Angela De Bonis
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| | - Antonietta Pepe
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
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49
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Unalan I, Slavik B, Buettner A, Goldmann WH, Frank G, Boccaccini AR. Physical and Antibacterial Properties of Peppermint Essential Oil Loaded Poly ( ε-caprolactone) (PCL) Electrospun Fiber Mats for Wound Healing. Front Bioeng Biotechnol 2019; 7:346. [PMID: 32039166 PMCID: PMC6988806 DOI: 10.3389/fbioe.2019.00346] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/06/2019] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to fabricate and characterize various concentrations of peppermint essential oil (PEP) loaded on poly(ε-caprolactone) (PCL) electrospun fiber mats for healing applications, where PEP was intended to impart antibacterial activity to the fibers. SEM images illustrated that the morphology of all electrospun fiber mats was smooth, uniform, and bead-free. The average fiber diameter was reduced by the addition of PEP from 1.6 ± 0.1 to 1.0 ± 0.2 μm. Functional groups of the fibers were determined by Raman spectroscopy. Gas chromatography-mass spectroscopy (GC-MS) analysis demonstrated the actual PEP content in the samples. In vitro degradation was determined by measuring weight loss and their morphology change, showing that the electrospun fibers slightly degraded by the addition of PEP. The wettability of PCL and PEP loaded electrospun fiber mats was measured by determining contact angle and it was shown that wettability increased with the incorporation of PEP. The antimicrobial activity results revealed that PEP loaded PCL electrospun fiber mats exhibited inhibition against Staphylococcus aureus (gram-positive) and Escherichia coli (gram-negative) bacteria. In addition, an in-vitro cell viability assay using normal human dermal fibroblast (NHDF) cells revealed improved cell viability on PCL, PCLPEP1.5, PCLPEP3, and PCLGEL6 electrospun fiber mats compared to the control (CNT) after 48 h cell culture. Our findings showed for the first time PEP loaded PCL electrospun fiber mats with antibiotic-free antibacterial activity as promising candidates for wound healing applications.
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Affiliation(s)
- Irem Unalan
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Benedikt Slavik
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Andrea Buettner
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Wolfgang H. Goldmann
- Department of Physics, Institute of Biophysics, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Gerhard Frank
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R. Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
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50
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Unalan I, Endlein SJ, Slavik B, Buettner A, Goldmann WH, Detsch R, Boccaccini AR. Evaluation of Electrospun Poly(ε-Caprolactone)/Gelatin Nanofiber Mats Containing Clove Essential Oil for Antibacterial Wound Dressing. Pharmaceutics 2019; 11:E570. [PMID: 31683863 PMCID: PMC6920971 DOI: 10.3390/pharmaceutics11110570] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 12/16/2022] Open
Abstract
The objective of this study was to produce antibacterial poly(ε-caprolactone) (PCL)-gelatin (GEL) electrospun nanofiber mats containing clove essential oil (CLV) using glacial acetic acid (GAA) as a "benign" (non-toxic) solvent. The addition of CLV increased the fiber diameter from 241 ± 96 to 305 ± 82 nm. Aside from this, the wettability of PCL-GEL nanofiber mats was increased by the addition of CLV. Fourier-transform infrared spectroscopy (FTIR) analysis confirmed the presence of CLV, and the actual content of CLV was determined by gas chromatography-mass spectrometry (GC-MS). Our investigations showed that CLV-loaded PCL-GEL nanofiber mats did not have cytotoxic effects on normal human dermal fibroblast (NHDF) cells. On the other hand, the fibers exhibited antibacterial activity against Staphylococcus aureus and Escherichia coli. Consequently, PCL-GEL/CLV nanofiber mats are potential candidates for antibiotic-free wound healing applications.
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Affiliation(s)
- Irem Unalan
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany.
| | - Stefan J Endlein
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany.
| | - Benedikt Slavik
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Henkestraße 9, 91054 Erlangen, Germany.
| | - Andrea Buettner
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Henkestraße 9, 91054 Erlangen, Germany.
| | - Wolfgang H Goldmann
- Institute of Biophysics, Department of Physics, Friedrich-Alexander-University Erlangen-Nuremberg, Henkestraße 91, 91052 Erlangen, Germany.
| | - Rainer Detsch
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany.
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany.
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