1
|
Agrawal P, Zhuang S, Dreher S, Mitter S, Ahmed D. SonoPrint: Acoustically Assisted Volumetric 3D Printing for Composites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2408374. [PMID: 39049689 DOI: 10.1002/adma.202408374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Indexed: 07/27/2024]
Abstract
Advances in additive manufacturing in composites have transformed aerospace, medical devices, tissue engineering, and electronics. A key aspect of enhancing properties of 3D-printed objects involves fine-tuning the material by embedding and orienting reinforcement within the structure. Existing methods for orienting these reinforcements are limited by pattern types, alignment, and particle characteristics. Acoustics offers a versatile method to control the particles independent of their size, geometry, and charge, enabling intricate pattern formations. However, integrating acoustics into 3D printing has been challenging due to the scattering of the acoustic field between polymerized layers and unpolymerized resin, resulting in unwanted patterns. To address this challenge, SonoPrint, an innovative acoustically assisted volumetric 3D printer is developed that enables simultaneous reinforcement patterning and printing of the entire structure. SonoPrint generates mechanically tunable composite geometries by embedding reinforcement particles, such as microscopic glass, metal, and polystyrene, within the fabricated structure. This printer employs a standing wave field to create targeted particle motifs-including parallel lines, radial lines, circles, rhombuses, hexagons, and polygons-directly in the photosensitive resin, completing the print in just a few minutes. SonoPrint enhances structural properties and promises to advance volumetric printing, unlocking applications in tissue engineering, biohybrid robots, and composite fabrication.
Collapse
Affiliation(s)
- Prajwal Agrawal
- Acoustic Robotics Systems Lab, Institute of Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Shengyang Zhuang
- Acoustic Robotics Systems Lab, Institute of Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Simon Dreher
- Acoustic Robotics Systems Lab, Institute of Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Sarthak Mitter
- Acoustic Robotics Systems Lab, Institute of Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Daniel Ahmed
- Acoustic Robotics Systems Lab, Institute of Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| |
Collapse
|
2
|
Iorio F, El Khatib M, Wöltinger N, Turriani M, Di Giacinto O, Mauro A, Russo V, Barboni B, Boccaccini AR. Electrospun poly(ε-caprolactone)/poly(glycerol sebacate) aligned fibers fabricated with benign solvents for tendon tissue engineering. J Biomed Mater Res A 2024. [PMID: 39295227 DOI: 10.1002/jbm.a.37794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/02/2024] [Accepted: 08/31/2024] [Indexed: 09/21/2024]
Abstract
The electrospinning technique is a commonly employed approach to fabricate fibers intended for various tissue engineering applications. The aim of this study is to develop a novel strategy for tendon repair through the use of aligned poly(ε-caprolactone) (PCL) and poly(glycerol sebacate) (PGS) fibers fabricated in benign solvents, and further explore the potential application of PGS in tendon tissue engineering (TTE). The fibers were characterized for their morphological and physicochemical properties; amniotic epithelial stem cells (AECs) were used to assess the fibers teno-inductive and immunomodulatory potential due to their ability to teno-differentiate undergoing first a stepwise epithelial to mesenchymal transition, and due to their documented therapeutic role in tendon regeneration. The addition of PGS to PCL improved the spinnability of the polymer solution, as well as the uniformity and directionality of the so-obtained fibers. The mechanical properties were in the range of most TTE applications, specifically in the case of PCL/PGS 4:1 and 2:1 ratios. Compared to PCL alone, the same ratios also allowed a better AECs infiltration and growth over 7 days of culture, and triggered the activation of tendon-related genes (SCX, COL1, TNMD) and the expression of tenomodulin (TNMD) at the protein level. Concerning the immunomodulatory properties, both PCL and PCL/PGS fibers negatively affected the immunomodulatory profile of AECs, up-regulating both anti-inflammatory (IL-10) and pro-inflammatory (IL-12) cytokines over 7 days of culture. Overall, PCL/PGS 2:1 fibers fabricated with benign solvents proved to be the most suitable composition for TTE application based on their topographical cues, mechanical properties, biocompatibility, and teno-inductive properties.
Collapse
Affiliation(s)
- Francesco Iorio
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Mohammad El Khatib
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Natalie Wöltinger
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Maura Turriani
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Oriana Di Giacinto
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Annunziata Mauro
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Valentina Russo
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Barbara Barboni
- Department of Bioscience and Agro-Food and Environmental Technology, Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| |
Collapse
|
3
|
Petousis M, Michailidis N, Korlos A, Papadakis V, David C, Sagris D, Mountakis N, Argyros A, Valsamos J, Vidakis N. Biomedical Composites of Polycaprolactone/Hydroxyapatite for Bioplotting: Comprehensive Interpretation of the Reinforcement Course. Polymers (Basel) 2024; 16:2400. [PMID: 39274033 PMCID: PMC11396925 DOI: 10.3390/polym16172400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 09/16/2024] Open
Abstract
Robust materials in medical applications are sought after and researched, especially for 3D printing in bone tissue engineering. Poly[ε-caprolactone] (PCL) is a commonly used polymer for scaffolding and other medical uses. Its strength is a drawback compared to other polymers. Herein, PCL was mixed with hydroxyapatite (HAp). Composites were developed at various concentrations (0.0-8.0 wt. %, 2.0 step), aiming to enhance the strength of PCL with a biocompatible additive in bioplotting. Initially, pellets were derived from the shredding of filaments extruded after mixing PCL and HAp at predetermined quantities for each composite. Specimens were then manufactured by bioplotting 3D printing. The samples were tested for their thermal and rheological properties and were also mechanically, morphologically, and chemically examined. The mechanical properties included tensile and flexural investigations, while morphological and chemical examinations were carried out employing scanning electron microscopy and energy dispersive spectroscopy, respectively. The structure of the manufactured specimens was analyzed using micro-computed tomography with regard to both their dimensional deviations and voids. PCL/HAp 6.0 wt. % was the composite that showed the most enhanced mechanical (14.6% strength improvement) and structural properties, proving the efficiency of HAp as a reinforcement filler in medical applications.
Collapse
Affiliation(s)
- Markos Petousis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
| | - Nikolaos Michailidis
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Centre for Research & Development of Advanced Materials (CERDAM), Center for Interdisciplinary Research and Innovation, Balkan Centre, Building B', 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - Apostolos Korlos
- Department of Industrial Engineering and Management, International Hellenic University, 14th km Thessaloniki-N. Moudania, Thermi, 57001 Thessaloniki, Greece
| | - Vassilis Papadakis
- Department of Industrial Design and Production Engineering, University of West Attica, 12243 Athens, Greece
- Foundation for Research and Technology Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), 70013 Heraklion, Greece
| | - Constantine David
- Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece
| | - Dimitrios Sagris
- Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece
| | - Nikolaos Mountakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
| | - Apostolos Argyros
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Centre for Research & Development of Advanced Materials (CERDAM), Center for Interdisciplinary Research and Innovation, Balkan Centre, Building B', 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - John Valsamos
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
| | - Nectarios Vidakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
| |
Collapse
|
4
|
Walsh T, Hadisi Z, Dabiri SMH, Hasanpour S, Samimi S, Azimzadeh M, Akbari M. Facile roll-to-roll production of nanoporous fiber coatings for advanced wound care sutures. NANOSCALE 2024; 16:15615-15628. [PMID: 39110148 DOI: 10.1039/d4nr01432d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Theranostic sutures are derived from innovative ideas to enhance wound healing results by adding wound diagnostics and therapeutics to typical sutures by functionalizing them with additional materials. Here, we present a new direct electrospinning method for the fast, continuous, inexpensive, and high-throughput production of versatile nanofibrous-coated suture threads, with precise control over various essential microstructural and physical characteristics. The thickness of the coating layer and the alignment of nanofibers with the thread's direction can be adjusted by the user by varying the spooling speed and the displacement between the spinneret needle and thread. To show the flexibility of our method for a range of different materials selected, gelatin, polycaprolactone, silk fibroin, and PEDOT:PSS (poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)) were the resultant nanofibers characterized by scanning electron microscopy (SEM) imaging and conductivity tests. In a series of in vitro and ex vivo tests (pig skin), sutures were successfully tested for their flexibility and mechanical properties when used as weaving and knotting sutures, and their biocompatibility with a keratinocyte cell line. For temperature-based drug-releasing tests, two fluorescent molecules as drug models with high and low molecular weight, namely fluorescein isothiocyanate-dextran (20 kDa) and rhodamine B (470 Da), were used, and their steady release with incremental increase of temperature to 37 °C over 120 min was seen, which is appropriate for bacterial treatment drugs. Given the advantages of the presented technique, it seems to have promising potential to be used in future medical applications for wound closure and bacterial infection treatment via a temperature-triggered drug release strategy.
Collapse
Affiliation(s)
- Tavia Walsh
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Zhina Hadisi
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Seyed Mohammad Hossein Dabiri
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sadegh Hasanpour
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sadaf Samimi
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Mostafa Azimzadeh
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Mohsen Akbari
- Laboratory for Innovations in Microengineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, Victoria, BC V8W 2Y2, Canada
| |
Collapse
|
5
|
Cruz-Maya I, Cirillo V, Serrano-Bello J, Serri C, Alvarez-Perez MA, Guarino V. Optimization of Diclofenac-Loaded Bicomponent Nanofibers: Effect of Gelatin on In Vitro and In Vivo Response. Pharmaceutics 2024; 16:925. [PMID: 39065622 PMCID: PMC11279899 DOI: 10.3390/pharmaceutics16070925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/28/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
The use of electrospun fibers as anti-inflammatory drug carriers is currently one of the most interesting approaches for the design of drug delivery systems. In recent years, biodegradable polymers blended with naturally derived ones have been extensively studied to fabricate bioinspired platforms capable of driving biological responses by releasing selected molecular/pharmaceutical signals. Here, sodium diclofenac (DicNa)-loaded electrospun fibers, consisting of polycaprolactone (PCL) or gelatin-functionalized PCL, were studied to evaluate fibroblasts' in vitro and in vivo response. In vitro studies demonstrated that cell adhesion of L929 cells (≈70%) was not affected by the presence of DicNa after 4 h. Moreover, the initial burst release of the drug from PD and PGD fibers, e.g., 80 and 48%, respectively, after 5 h-combined with its sustained release-did not produce any cytotoxic effect and did not negatively influence the biological activity of the cells. In particular, it was demonstrated that the addition of gelatin concurred to slow down the release mechanism, thus limiting the antiproliferative effect of DicNa, as confirmed by the significant increase in cell viability and collagen deposition after 7 days, with respect to PCL alone. In vivo studies in a rat subcutaneous model also confirmed the ability of DicNa-loaded fibers to moderate the inflammatory/foreign body response independently through the presence of gelatin that played a significant role in supporting the formation of small-caliber vessels after 10 days of implantation. All of these results suggest using bicomponent fibers loaded with DicNa as a valid therapeutic tool capable of supporting the wound healing process and limiting in vivo inflammation and rejection phenomena.
Collapse
Affiliation(s)
- Iriczalli Cruz-Maya
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra d’Oltremare, V.le J.F.Kennedy 54, 80125 Naples, Italy; (I.C.-M.); (V.C.)
- Tissue Bioengineering Laboratory, Department of Posgraduate Studies and Research (DEPeI), School of Dentistry, Universidad Nacional Autonoma de Mexico (UNAM), Circuito Exterior s/n, Mexico City 04510, Mexico;
| | - Valentina Cirillo
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra d’Oltremare, V.le J.F.Kennedy 54, 80125 Naples, Italy; (I.C.-M.); (V.C.)
| | - Janeth Serrano-Bello
- Tissue Bioengineering Laboratory, Department of Posgraduate Studies and Research (DEPeI), School of Dentistry, Universidad Nacional Autonoma de Mexico (UNAM), Circuito Exterior s/n, Mexico City 04510, Mexico;
| | - Carla Serri
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy;
| | - Marco Antonio Alvarez-Perez
- Tissue Bioengineering Laboratory, Department of Posgraduate Studies and Research (DEPeI), School of Dentistry, Universidad Nacional Autonoma de Mexico (UNAM), Circuito Exterior s/n, Mexico City 04510, Mexico;
| | - Vincenzo Guarino
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra d’Oltremare, V.le J.F.Kennedy 54, 80125 Naples, Italy; (I.C.-M.); (V.C.)
| |
Collapse
|
6
|
Buriti BMADB, Figueiredo PLB, Passos MF, da Silva JKR. Polymer-Based Wound Dressings Loaded with Essential Oil for the Treatment of Wounds: A Review. Pharmaceuticals (Basel) 2024; 17:897. [PMID: 39065747 PMCID: PMC11279661 DOI: 10.3390/ph17070897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Wound healing can result in complex problems, and discovering an effective method to improve the healing process is essential. Polymeric biomaterials have structures similar to those identified in the extracellular matrix of the tissue to be regenerated and also avoid chronic inflammation, and immunological reactions. To obtain smart and effective dressings, bioactive agents, such as essential oils, are also used to promote a wide range of biological properties, which can accelerate the healing process. Therefore, we intend to explore advances in the potential for applying hybrid materials in wound healing. For this, fifty scientific articles dated from 2010 to 2023 were investigated using the Web of Science, Scopus, Science Direct, and PubMed databases. The principles of the healing process, use of polymers, type and properties of essential oils and processing techniques, and characteristics of dressings were identified. Thus, the plants Syzygium romanticum or Eugenia caryophyllata, Origanum vulgare, and Cinnamomum zeylanicum present prospects for application in clinical trials due to their proven effects on wound healing and reducing the incidence of inflammatory cells in the site of injury. The antimicrobial effect of essential oils is mainly due to polyphenols and terpenes such as eugenol, cinnamaldehyde, carvacrol, and thymol.
Collapse
Affiliation(s)
- Bruna Michele A. de B. Buriti
- Instituto de Ciências Exatas e Naturais, Programa de Pós-Graduação em Química, Universidade Federal do Pará, Belém 66075-110, PA, Brazil;
| | - Pablo Luis B. Figueiredo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Belém 66079-420, PA, Brazil; (P.L.B.F.); (M.F.P.)
| | - Marcele Fonseca Passos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Belém 66079-420, PA, Brazil; (P.L.B.F.); (M.F.P.)
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Joyce Kelly R. da Silva
- Instituto de Ciências Exatas e Naturais, Programa de Pós-Graduação em Química, Universidade Federal do Pará, Belém 66075-110, PA, Brazil;
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| |
Collapse
|
7
|
Lee MY, Yoon HW, Lee SY, Kim KM, Shin SJ, Kwon JS. Mineral trioxide aggregate in membrane form as a barrier membrane in guided bone regeneration. J Dent Sci 2024; 19:1653-1666. [PMID: 39035317 PMCID: PMC11259731 DOI: 10.1016/j.jds.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/27/2023] [Indexed: 07/23/2024] Open
Abstract
Background/purpose In the field of conservative dentistry and endodontics, mineral trioxide aggregate (MTA), commonly used, possesses advantages such as biocompatibility, antimicrobial properties and osteogenic potential. This study investigated the feasibility of utilizing membrane form mineral trioxide aggregate (MTA) as a barrier membrane in guided bone regeneration (GBR) procedures. Materials and methods Membranes were electrospun from three different formulations: 15 w/v% Polycaprolactone (PCL), 13 w/v% PCL + 2 w/v% MTA (2MTA), and 11 w/v% PCL + 4 w/v% MTA (4MTA). Physicochemical and mechanical properties of the electrospun membrane were compared, encompassing parameters such as surface morphology, fiber diameter distribution, chemical composition, phase identification, tensile stress, pH variation, and water contact angle. Moreover, the antimicrobial properties against of the electrospun membranes were assessed through direct exposure to streptococcus aureus (S. aureus) and candida albicans (C. albicans). Additionally, on the 7th day, biocompatibility and cell attachment were investigated with respect to L929 (fibroblast) and MC3T3 (pre-osteoblast) cells. Inhibition of L929 cell infiltration and the expression of osteogenic related genes including osteocalcin (OCN), alkaline phosphatase (ALP), and runt related transcription factor 2 (RUNX2) in MC3T3 cells on 7th and 14th days were also investigated. Results PCL, 2MTA, and 4MTA exhibited no statistically differences in fiber diameter distribution and tensile stress. However, as the MTA content increased, wettability and pH also increased. Due to the elevated pH, 4MTA demonstrated the lowest viability S.aureus and C.albicans. All membranes were highly biocompatibility and promoted cell attachment, while effectively preventing L929 cell infiltration. Lastly 4MTA showed increase in OCN, ALP, and RUNX2 expression on both 7th and 14th day. Conclusion The membrane form MTA possessed characteristics essential for a novel barrier membrane.
Collapse
Affiliation(s)
- Min-Yong Lee
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hi-Won Yoon
- Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, South Korea
| | - Si-Yoon Lee
- Department of Biology, New York University, New York, NY, USA
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
| | - Su-Jung Shin
- Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| |
Collapse
|
8
|
Alizadeh S, Samadikuchaksaraei A, Jafari D, Orive G, Dolatshahi-Pirouz A, Pezeshki-Modaress M, Gholipourmalekabadi M. Enhancing Diabetic Wound Healing Through Improved Angiogenesis: The Role of Emulsion-Based Core-Shell Micro/Nanofibrous Scaffold with Sustained CuO Nanoparticle Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309164. [PMID: 38175832 DOI: 10.1002/smll.202309164] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/19/2023] [Indexed: 01/06/2024]
Abstract
Attempts are made to design a system for sustaining the delivery of copper ions into diabetic wounds and induce angiogenesis with minimal dose-dependent cytotoxicity. Here, a dual drug-delivery micro/nanofibrous core-shell system is engineered using polycaprolactone/sodium sulfated alginate-polyvinyl alcohol (PCL/SSA-PVA), as core/shell parts, by emulsion electrospinning technique to optimize sustained delivery of copper oxide nanoparticles (CuO NP). Herein, different concentrations of CuO NP (0.2, 0.4, 0.8, and 1.6%w/w) are loaded into the core part of the core-shell system. The morphological, biomechanical, and biocompatibility properties of the scaffolds are fully determined in vitro and in vivo. The 0.8%w/w CuO NP scaffold reveals the highest level of tube formation in HUVEC cells and also upregulates the pro-angiogenesis genes (VEGFA and bFGF) expression with no cytotoxicity effects. The presence of SSA and its interaction with CuO NP, and also core-shell structure sustain the release of the nanoparticles and provide a non-toxic microenvironment for cell adhesion and tube formation, with no sign of adverse immune response in vivo. The optimized scaffold significantly accelerates diabetic wound healing in a rat model. This study strongly suggests the 0.8%w/w CuO NP-loaded PCL/SSA-PVA as an excellent diabetic wound dressing with significantly improved angiogenesis and wound healing.
Collapse
Affiliation(s)
- Sanaz Alizadeh
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Samadikuchaksaraei
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Davod Jafari
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, 01006, Spain
- University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, 01006, Spain
- Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, 01006, Spain
| | | | - Mohamad Pezeshki-Modaress
- Burn Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Plastic and Reconstructive Surgery, Hazrat Fatemeh Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- NanoBiotechnology & Regenerative Medicine Innovation Group, Noavarn Salamat ZHINO (PHC), Tehran, 1949635882, Iran
| |
Collapse
|
9
|
Vilamová Z, Šimonová Z, Bednář J, Mikeš P, Cieslar M, Svoboda L, Dvorský R, Rosenbergová K, Kratošová G. Silver-loaded poly(vinyl alcohol)/polycaprolactone polymer scaffold as a biocompatible antibacterial system. Sci Rep 2024; 14:11093. [PMID: 38750188 PMCID: PMC11096175 DOI: 10.1038/s41598-024-61567-5] [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: 11/17/2023] [Accepted: 05/07/2024] [Indexed: 05/18/2024] Open
Abstract
A chronic nonhealing wound poses a significant risk for infection and subsequent health complications, potentially endangering the patient's well-being. Therefore, effective wound dressings must meet several crucial criteria, including: (1) eliminating bacterial pathogen growth within the wound, (2) forming a barrier against airborne microbes, (3) promoting cell proliferation, (4) facilitating tissue repair. In this study, we synthesized 8 ± 3 nm Ag NP with maleic acid and incorporated them into an electrospun polycaprolactone (PCL) matrix with 1.6 and 3.4 µm fiber sizes. The Ag NPs were anchored to the matrix via electrospraying water-soluble poly(vinyl) alcohol (PVA), reducing the average sphere size from 750 to 610 nm in the presence of Ag NPs. Increasing the electrospraying time of Ag NP-treated PVA spheres demonstrated a more pronounced antibacterial effect. The resultant silver-based material exhibited 100% inhibition of gram-negative Escherichia coli and gram-positive Staphylococcus aureus growth within 6 h while showing non-cytotoxic effects on the Vero cell line. We mainly discuss the preparation method aspects of the membrane, its antibacterial properties, and cytotoxicity, suggesting that combining these processes holds promise for various medical applications.
Collapse
Affiliation(s)
- Zuzana Vilamová
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic.
- Faculty of Materials Science and Technology, FMT, VSB-Technical University of Ostrava, 17. listopadu 2172/15, Poruba, 708 00, Ostrava, Czech Republic.
| | - Zuzana Šimonová
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic
- Faculty of Material Science and Technology, Center for Advanced Innovation Technologies, VSB-Technical University of Ostrava, Ostrava, 17. listopadu 15/2172, 708 00, Ostrava, Czech Republic
| | - Jiří Bednář
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic
| | - Petr Mikeš
- Department of Physics, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentská 5, 461 17, Liberec, Czech Republic
| | - Miroslav Cieslar
- Department of Physics of Materials, Faculty of Mathemathics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague, Czech Republic
| | - Ladislav Svoboda
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic
| | - Richard Dvorský
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic
- Faculty of Material Science and Technology, Center for Advanced Innovation Technologies, VSB-Technical University of Ostrava, Ostrava, 17. listopadu 15/2172, 708 00, Ostrava, Czech Republic
| | - Kateřina Rosenbergová
- National Institute for Nuclear, Biological and Chemical Protection, V.V.I., Kamenná 71, 262 31, Milín, Czech Republic
| | - Gabriela Kratošová
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. listopadu 15/2172, Poruba, 708 00, Ostrava, Czech Republic
| |
Collapse
|
10
|
Yuan J, Wang S, Yang J, Schneider KH, Xie M, Chen Y, Zheng Z, Wang X, Zhao Z, Yu J, Li G, Kaplan DL. Recent advances in harnessing biological macromolecules for wound management: A review. Int J Biol Macromol 2024; 266:130989. [PMID: 38508560 DOI: 10.1016/j.ijbiomac.2024.130989] [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: 11/20/2023] [Revised: 03/13/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
Wound dressings (WDs) are an essential component of wound management and serve as an artificial barrier to isolate the injured site from the external environment, thereby helping to prevent exogenous infections and supporting healing. However, maintaining a moist wound environment, providing protection from infection, good biocompatibility, and allowing for gas exchange, remain a challenge in device design. Functional wound dressings (FWDs) prepared from hybrid biological macromolecule-based materials can enhance efficacy of these systems for skin wound management. This review aims to provide an overview of the state-of-the-art FWDs within the field of wound management, with a specific focus on hybrid biomaterials, techniques, and applications developed over the past five years. In addition, we highlight the incorporation of biological macromolecules in WDs, the emergence of smart WDs, and discuss the existing challenges and future prospects for the development of advanced WDs.
Collapse
Affiliation(s)
- Jingxuan Yuan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Rd, Suzhou 215123, P.R. China
| | - Shuo Wang
- School of Physical Education, Orthopaedic Institute, Soochow University, 50 Donghuan Rd, Suzhou 215006, Jiangsu, P.R. China
| | - Jie Yang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Rd, Suzhou 215123, P.R. China
| | - Karl H Schneider
- Ludwig Boltzmann Institute for Cardiovascular Research at the Center for Biomedical Research, Medical University of Vienna, 23 Spitalgasse, Austria
| | - Maobin Xie
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, P.R. China
| | - Ying Chen
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Rd, Suzhou 215123, P.R. China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Rd, Suzhou 215123, P.R. China
| | - Zeyu Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, 11 Yukchoi Rd, Hung Hom, Kowloon, Hong Kong.
| | - Jia Yu
- School of Physical Education, Orthopaedic Institute, Soochow University, 50 Donghuan Rd, Suzhou 215006, Jiangsu, P.R. China.
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Rd, Suzhou 215123, P.R. China.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA
| |
Collapse
|
11
|
Kolahi Azar H, Hajian Monfared M, Seraji AA, Nazarnezhad S, Nasiri E, Zeinanloo N, Sherafati M, Sharifianjazi F, Rostami M, Beheshtizadeh N. Integration of polysaccharide electrospun nanofibers with microneedle arrays promotes wound regeneration: A review. Int J Biol Macromol 2024; 258:128482. [PMID: 38042326 DOI: 10.1016/j.ijbiomac.2023.128482] [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: 06/14/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023]
Abstract
Utilizing electrospun nanofibers and microneedle arrays in wound regeneration has been practiced for several years. Researchers have recently asserted that using multiple methods concurrently might enhance efficiency, despite the inherent strengths and weaknesses of each individual approach. The combination of microneedle arrays with electrospun nanofibers has the potential to create a drug delivery system and wound healing method that offer improved efficiency and accuracy in targeting. The use of microneedles with nanofibers allows for precise administration of pharmaceuticals due to the microneedles' capacity to pierce the skin and the nanofibers' role as a drug reservoir, resulting in a progressive release of drugs over a certain period of time. Electrospun nanofibers have the ability to imitate the extracellular matrix and provide a framework for cellular growth and tissue rejuvenation, while microneedle arrays show potential for enhancing tissue regeneration and enhancing the efficacy of wound healing. The integration of electrospun nanofibers with microneedle arrays may be customized to effectively tackle particular obstacles in the fields of wound healing and drug delivery. However, some issues must be addressed before this paradigm may be fully integrated into clinical settings, including but not limited to ensuring the safety and sterilization of these products for transdermal use, optimizing manufacturing methods and characterization of developed products, larger-scale production, optimizing storage conditions, and evaluating the inclusion of multiple therapeutic and antimicrobial agents to increase the synergistic effects in the wound healing process. This research examines the combination of microneedle arrays with electrospun nanofibers to enhance the delivery of drugs and promote wound healing. It explores various kinds of microneedle arrays, the materials and processes used, and current developments in their integration with electrospun nanofibers.
Collapse
Affiliation(s)
- Hanieh Kolahi Azar
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pathology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdieh Hajian Monfared
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran; Regenerative Medicine group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Amir Abbas Seraji
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada; Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
| | - Simin Nazarnezhad
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Regenerative Medicine group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Esmaeil Nasiri
- School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran
| | - Niloofar Zeinanloo
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mona Sherafati
- Department of Biomedical Engineering, Islamic Azad University, Mashhad, Iran
| | - Fariborz Sharifianjazi
- Department of Natural Sciences, School of Science and Technology, The University of Georgia, Tbilisi 0171, Georgia
| | - Mohammadreza Rostami
- Division of Food Safety and Hygiene, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Food Science and Nutrition Group (FSAN), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Nima Beheshtizadeh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Regenerative Medicine group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| |
Collapse
|
12
|
Mohammadi A, Koruji M, Azami M, Shabani R, Mohandesnezhad S, Bashiri Z, Asgari H. Polycaprolactone/Testicular Extracellular Matrix/Graphene Oxide-Based Electrospun Tubular Scaffolds for Reproductive Medicine: Biomimetic Architecture of Seminiferous Tubules. Macromol Biosci 2024; 24:e2300342. [PMID: 37729950 DOI: 10.1002/mabi.202300342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/06/2023] [Indexed: 09/22/2023]
Abstract
Numerous scaffolds are developed in the field of testicular bioengineering. However, effectively replicating the spatial characteristics of native tissue, poses a challenge in maintaining the requisite cellular arrangement essential for spermatogenesis. In order to mimic the structural properties of seminiferous tubules, the objective is to fabricate a biocompatible tubular scaffold. Following the decellularization process of the testicular tissue, validation of cellular remnants' elimination from the specimens is conducted using 4',6-diamidino-2-phenylindole staining, hematoxylin and eosin staining, and DNA content analysis. The presence of extracellular matrix (ECM) components is confirmed through Alcian blue, Orcein, and Masson's trichrome staining techniques. The electrospinning technique is employed to synthesize the scaffolds using polycaprolactone (PCL), extracted ECM, and varying concentrations of graphene oxide (GO) (0.5%, 1%, and 2%). Subsequently, comprehensive evaluations are performed to assess the properties of the synthetic scaffolds. These evaluations encompass Fourier-transform infrared spectroscopy, scanning electron microscopy imaging, scaffold degradation testing, mechanical behavior analysis, methylthiazolyldiphenyl-tetrazolium bromide assay, and in vivo biocompatibility assessment. The PCL/decellularized extracellular matrix with 0.5% GO formulation exhibits superior fiber morphology and enhanced mechanical properties, and outperforms other groups in terms of in vitro biocompatibility. Consequently, these scaffolds present a viable option for implementation in "in vitro spermatogenesis" procedures, holding promise for future sperm production from spermatogonial cells.
Collapse
Affiliation(s)
- Amirhossein Mohammadi
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
| | - Morteza Koruji
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
| | - Mahmoud Azami
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
- Joint Reconstruction Research Center (JRRC), Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Ronak Shabani
- Reproductive Sciences and Technology Research Center, Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Sanam Mohandesnezhad
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Zahra Bashiri
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, 6517789971, Iran
- Omid Fertility & Infertility Clinic, Hamedan, 6516796198, Iran
| | - Hamidreza Asgari
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
| |
Collapse
|
13
|
Martinaud E, Hierro-Iglesias C, Hammerton J, Hadad B, Evans R, Sacharczuk J, Lester D, Derry MJ, Topham PD, Fernandez-Castane A. Valorising Cassava Peel Waste Into Plasticized Polyhydroxyalkanoates Blended with Polycaprolactone with Controllable Thermal and Mechanical Properties. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2024; 32:3503-3515. [PMID: 39161457 PMCID: PMC11330390 DOI: 10.1007/s10924-023-03167-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 08/21/2024]
Abstract
Approximately 99% of plastics produced worldwide were produced by the petrochemical industry in 2019 and it is predicted that plastic consumption may double between 2023 and 2050. The use of biodegradable bioplastics represents an alternative solution to petroleum-based plastics. However, the production cost of biopolymers hinders their real-world use. The use of waste biomass as a primary carbon source for biopolymers may enable a cost-effective production of bioplastics whilst providing a solution to waste management towards a carbon-neutral and circular plastics economy. Here, we report for the first time the production of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) with a controlled molar ratio of 2:1 3-hydroxybutyrate:3-hydroxvalerate (3HB:3HV) through an integrated pre-treatment and fermentation process followed by alkaline digestion of cassava peel waste, a renewable low-cost substrate, through Cupriavidus necator biotransformation. PHBV was subsequently melt blended with a biodegradable polymer, polycaprolactone (PCL), whereby the 30:70 (mol%) PHBV:PCL blend exhibited an excellent balance of mechanical properties and higher degradation temperatures than PHBV alone, thus providing enhanced stability and controllable properties. This work represents a potential environmental solution to waste management that can benefit cassava processing industries (or other crop processing industries) whilst developing new bioplastic materials that can be applied, for example, to packaging and biomedical engineering. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10924-023-03167-4.
Collapse
Affiliation(s)
- Emma Martinaud
- École Nationale Supérieure de Chimie, de Biologie et de Physique, Polytechnic Institute of Bordeaux, 33607 Pessac Cedex, France
- Energy and Bioproducts Research Institute, Aston University, Birmingham, B4 7ET UK
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | | | - James Hammerton
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Bawan Hadad
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Rob Evans
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Jakub Sacharczuk
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Daniel Lester
- Polymer Characterisation Research Technology Platform, University of Warwick, Coventry, CV4 7AL UK
| | - Matthew J. Derry
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Paul D. Topham
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| | - Alfred Fernandez-Castane
- Energy and Bioproducts Research Institute, Aston University, Birmingham, B4 7ET UK
- Aston Advanced Materials Research Centre, Aston University, Birmingham, B4 7ET UK
| |
Collapse
|
14
|
Luque C, de la Cabeza Fernández M, Fuentes-Rios D, Cepero A, Contreras-Cáceres R, Doña M, Perazzoli G, Lozano-Chamizo L, Filice M, Marciello M, Gonzalez-Rumayor V, López-Romero JM, Cabeza L, Melguizo C, Prados J. Improved antitumor activity through a tyramidyl maslinic acid derivative. Design and validation as drug-loaded electrospun polymeric nanofibers. Eur J Pharm Biopharm 2023; 193:241-253. [PMID: 37972906 DOI: 10.1016/j.ejpb.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Among the most harmful tumors detected in the human body, such as breast, colon, brain or pancreas, breast (BC) and colorectal cancer (CRC) are the first and third most frequent cancer worldwide, respectively. The current existing chemotherapeutic treatments present serious side effects due to their intravenous administration can induce cytotoxicity in healthy cells. Thus, new treatment methods based on drug-loaded polymeric nanofibers (NFs) have gained significant potential for their use in localized cancer chemotherapy. Here, a deep in vitro comparative analysis between maslinic acid (MA) and a tyramine-maslinic acid (TMA) derivative is initially performed. This analysis includes a proliferation, and a cell cycle assay, and a genotoxicity, antiangiogenic and apoptosis study. Then, the TMA derivative has been incorporated into electrospun polymeric NFs obtaining an implantable dressing material with antitumor activity. Two types of patches containing TMA-loaded polymeric NFs of poly(caprolactone) (PCL), and a mixture of polylactic acid/poly(4-vinylpyridine) (PLA/PVP) were fabricated by the electrospinning technique. The characterization of the drug-loaded NFs showed an encapsulation capacity of 0.027 mg TMA/mg PCL and 0.024 mg TMA/mg PLA/PVP. Then, the cytotoxic activity of both polymeric systems was tested in CRC (T84), BC (MCF-7) and a no tumor (L929) cell lines exposed to TMA-loaded NFs and blank NFs for 48 h. Moreover, cell cycle assay, genotoxicity, angiogenesis and apoptosis tests were carried out to study the mechanism of action of TMA. Blank NFs showed no-toxicity in all cell lines tested and both drug-loaded NFs significantly reduced cell proliferation (relative proliferation of ≈44 % and ≈25 % respectively). Therefore, TMA was less genotoxic than maslinic acid (MA), and reduced VEGFA expression in MCF-7 cells (1.32 and 2.12-fold for MA and TMA respectively). These results showed that TMA-loaded NFs could constitute a promising biocompatible and biodegradable nanoplatform for the local treatment of solid tumors such as CRC or BC.
Collapse
Affiliation(s)
- Cristina Luque
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain
| | - María de la Cabeza Fernández
- Nanobiotechnology for Life Sciences Laboratory, Department of Chemistry in Pharmaceutical Science, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | - David Fuentes-Rios
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, 29071 Málaga, Spain
| | - Ana Cepero
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain
| | | | - Manuel Doña
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, 29071 Málaga, Spain
| | - Gloria Perazzoli
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain
| | - Laura Lozano-Chamizo
- Nanobiotechnology for Life Sciences Laboratory, Department of Chemistry in Pharmaceutical Science, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain; Atrys Health, E-28001 Madrid, Spain
| | - Marco Filice
- Nanobiotechnology for Life Sciences Laboratory, Department of Chemistry in Pharmaceutical Science, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | - Marzia Marciello
- Nanobiotechnology for Life Sciences Laboratory, Department of Chemistry in Pharmaceutical Science, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | | | | | - Laura Cabeza
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain.
| | - Consolación Melguizo
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain
| | - José Prados
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada 18100, Spain; Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada 18071, Spain; Biosanitary Institute of Granada (ibs. GRANADA), Granada 18014, Spain
| |
Collapse
|
15
|
Ferri-Angulo D, Yousefi-Mashouf H, Michel M, McLeer A, Orgéas L, Bailly L, Sohier J. Versatile fiber-reinforced hydrogels to mimic the microstructure and mechanics of human vocal-fold upper layers. Acta Biomater 2023; 172:92-105. [PMID: 37748548 DOI: 10.1016/j.actbio.2023.09.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 09/27/2023]
Abstract
Human vocal folds are remarkable soft laryngeal structures that enable phonation due to their unique vibro-mechanical performances. These properties are tied to their specific fibrous architecture, especially in the upper layers, which comprise a gel-like composite called lamina propria. The lamina propria can withstand large and reversible deformations under various multiaxial loadings. Despite their importance, the relationships between the microstructure of vocal folds and their resulting macroscopic properties remain poorly understood. There is a need for versatile models that encompass their structural complexity while mimicking their mechanical features. In this study, we present a candidate model inspired by histological measurements of the upper layers of human vocal folds. Bi-photonic observations were used to quantify the distribution, orientation, width, and volume fraction of collagen and elastin fibers between histological layers. Using established biomaterials, polymer fiber-reinforced hydrogels were developed to replicate the fibrillar network and ground substance of native vocal fold tissue. To achieve this, jet-sprayed poly(ε-caprolactone) fibrillar mats were successfully impregnated with poly(L-lysine) dendrimers/polyethylene glycol hydrogels. The resulting composites exhibited versatile structural, physical and mechanical properties that could be customized through variations in the chemical formulation of their hydrogel matrix, the microstructural architecture of their fibrous networks (i.e., fiber diameter, orientation and volume fraction) and their assembly process. By mimicking the collagen network of the lamina propria with polymer fibers and the elastin/ground substance with the hydrogel composition, we successfully replicated the non-linear, anisotropic, and viscoelastic mechanical behavior of the vocal-fold upper layers, accounting for inter/intra-individual variations. The development of this mimetic model offers promising avenues for a better understanding of the complex mechanisms involved in voice production. STATEMENT OF SIGNIFICANCE: Human vocal folds are outstanding vibrating soft living tissues allowing phonation. Simple physical models that take into account the histological structure of the vocal fold and recapitulate its mechanical features are scarce. As a result, the relations between tissue components, organisation and vibro-mechanical performances still remain an open question. We describe here the development and the characterization of fiber-reinforced hydrogels inspired from the vocal-fold microstructure. These systems are able to reproduce the mechanics of vocal-fold tissues upon realistic cyclic and large strains under various multi-axial loadings, thus providing a mimetic model to further understand the impact of the fibrous network microstructure in phonation.
Collapse
Affiliation(s)
- Daniel Ferri-Angulo
- MATEIS, CNRS, Université de Lyon, INSA de Lyon, Université Claude Bernard Lyon 1, UMR5510, 69100 Villeurbanne, France
| | - Hamid Yousefi-Mashouf
- Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, 38000 Grenoble, France; Univ. Grenoble Alpes, CNRS, Grenoble INP, GIPSA-lab, 38000 Grenoble, France
| | - Margot Michel
- Laboratory of Tissue Biology and Therapeutic Engineering, CNRS, University of Lyon, Claude Bernard University Lyon 1, UMR5305 LBTI, 69007 Lyon, France
| | - Anne McLeer
- Univ. Grenoble Alpes, CHU Grenoble Alpes, INSERM U1209, CNRS UMR5309, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Laurent Orgéas
- Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, 38000 Grenoble, France
| | - Lucie Bailly
- Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, 38000 Grenoble, France
| | - Jérôme Sohier
- Laboratory of Tissue Biology and Therapeutic Engineering, CNRS, University of Lyon, Claude Bernard University Lyon 1, UMR5305 LBTI, 69007 Lyon, France.
| |
Collapse
|
16
|
Lima TDPDL, Canelas CADA, Dutra JDCF, Rodrigues APD, Brígida RTSS, Concha VOC, da Costa FAM, Passos MF. Poly (ε-caprolactone)-Based Scaffolds with Multizonal Architecture: Synthesis, Characterization, and In Vitro Tests. Polymers (Basel) 2023; 15:4403. [PMID: 38006127 PMCID: PMC10674666 DOI: 10.3390/polym15224403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 11/26/2023] Open
Abstract
Tissue engineering is vital in treating injuries and restoring damaged tissues, aiming to accelerate regeneration and optimize the complex healing process. In this study, multizonal scaffolds, designed to mimic tissues with bilayer architecture, were prepared using the rotary jet spinning technique (RJS scaffolds). Polycaprolactone and different concentrations of alginate hydrogel (2, 4, and 6% m/v) were used. The materials were swollen in pracaxi vegetable oil (PO) (Pentaclethra macroloba) and evaluated in terms of surface morphology, wettability, functional groups, thermal behavior, crystallinity, and cytotoxicity. X-ray diffraction (XRD) showed the disappearance of the diffraction peak 2θ = 31.5° for samples from the polycaprolactone/pracaxi/alginate (PCLOA) group, suggesting a reduction of crystallinity according to the presence of PO and semi-crystalline structure. Wettability gradients (0 to 80.91°) were observed according to the deposition layer and hydrogel content. Pore diameters varied between 9.27 μm and 37.57 μm. Molecular interactions with the constituents of the formulation were observed via infrared spectra with Fourier transform (FTIR), and their influence was detected in the reduction of the maximum degradation temperature within the groups of scaffolds (polycaprolactone/alginate (PCLA) and PCLOA) about the control. In vitro tests indicated reduced cell viability in the presence of alginate hydrogel and PO, respectively.
Collapse
Affiliation(s)
- Tainara de Paula de Lima Lima
- Technological Development Group in Biopolymers and Biomaterials from the Amazon, Materials Science and Engineering Program, Federal University of Pará, Ananindeua 67130-660, PA, Brazil;
| | | | - Joyce da Cruz Ferraz Dutra
- Microbiology Department, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil;
| | - Ana Paula Drummond Rodrigues
- Electron Microscopy Laboratory, Evandro Chagas Institute, Ministry of Health, Belém 66093-020, PA, Brazil; (A.P.D.R.); (R.T.S.S.B.)
| | | | | | | | - Marcele Fonseca Passos
- Technological Development Group in Biopolymers and Biomaterials from the Amazon, Materials Science and Engineering Program, Federal University of Pará, Ananindeua 67130-660, PA, Brazil;
- Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil; (C.A.d.A.C.); (F.A.M.d.C.)
| |
Collapse
|
17
|
Huang Y, Zhang Z, Bi F, Tang H, Chen J, Huo F, Chen J, Lan T, Qiao X, Sima X, Guo W. Personalized 3D-Printed Scaffolds with Multiple Bioactivities for Bioroot Regeneration. Adv Healthc Mater 2023; 12:e2300625. [PMID: 37523260 DOI: 10.1002/adhm.202300625] [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: 04/09/2023] [Revised: 07/26/2023] [Indexed: 08/02/2023]
Abstract
Recent advances in 3D printing offer a prospective avenue for producing transplantable human tissues with complex geometries; however, the appropriate 3D-printed scaffolds possessing the biological compatibility for tooth regeneration remain unidentified. This study proposes a personalized scaffold of multiple bioactivities, including induction of stem cell proliferation and differentiation, biomimetic mineralization, and angiogenesis. A brand-new bioink system comprising a biocompatible and biodegradable polymer is developed and reinforced with extracellular matrix generated from dentin tissue (treated dentin matrix, TDM). Adding TDM optimizes physical properties including microstructure, hydrophilicity, and mechanical strength of the scaffolds. Proteomics analysis reveals that the released proteins of the 3D-printed TDM scaffolds relate to multiple biological processes and interact closely with each other. Additionally, 3D-printed TDM scaffolds establish a favorable microenvironment for cell attachment, proliferation, and differentiation in vitro. The 3D-printed TDM scaffolds are proangiogenic and facilitate whole-thickness vascularization of the graft in a subcutaneous model. Notably, the personalized TDM scaffold combined with dental follicle cells mimics the anatomy and physiology of the native tooth root three months after in situ transplantation in beagles. The remarkable in vitro and in vivo outcomes suggest that the 3D-printed TDM scaffolds have multiple bioactivities and immense clinical potential for tooth-loss therapy.
Collapse
Affiliation(s)
- Yibing Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Zhijun Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Fei Bi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Huilin Tang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Jiahao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Fangjun Huo
- State Key Laboratory of Oral Diseases, National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Jie Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Tingting Lan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Xiangchen Qiao
- Chengdu Guardental Technology Limited Corporation, Chengdu, 610041, P. R. China
| | - Xiutian Sima
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
- Yunnan Key Laboratory of Stomatology, Affiliated Hospital of Stomatology, School of Stomatology, Kunming Medical University, Kunming, 650000, P. R. China
| |
Collapse
|
18
|
Bai BMY, Wang TT, Chen XA, Wu CC. Pathogen inhibition and indication by gelatin nonwoven mats with incorporation of polyphenol derivatives. RSC Adv 2023; 13:31602-31615. [PMID: 37908665 PMCID: PMC10613854 DOI: 10.1039/d3ra05905g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023] Open
Abstract
There is a need for non-pharmaceutical intervention methods that can prevent and indicate the risk of airborne disease spread. In this study, we developed a nonwoven mat based on the polyphenol gallic acid, which can inhibit pathogens growth and also indicate pathogen levels in the surrounding environment. Using nuclear magnetic resonance, Fourier-transform infrared spectroscopy, and high-performance liquid chromatography, we characterized this novel gelatin-based nonwoven mat and investigated the mechanism governing its ability to indicate pathogen levels. We demonstrated that the incorporation of gallic acid serves a vital role in indicating the presence of bacteria, causing the nonwoven mat to change in color from white to brown. We have proposed a plausible mechanism for this color change behavior based on a reaction of gallic acid with components excreted by bacteria, including glutamate, valine, and leucine. The concentrations of these components reflect the bacterial counts, enabling a real-time indication of pathogen levels in the surrounding air. In summary, the nonwoven mat presented herein can serve as an excellent antibacterial agent and as an indicator of nearby bacteria for fabricating personal protection equipment like filtration mask.
Collapse
Affiliation(s)
- By Meng-Yi Bai
- Graduate Institute of Biomedical Engineering and Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology TR-917, AAEON Building, No. 43, Keelung Rd., Sec. 4, Da'an Dist. Taipei City 10607 Taiwan Republic of China
- Adjunct Appointment to the National Defense Medical Center Taipei 11490 Taiwan Republic of China
| | - Ting-Teng Wang
- Graduate Institute of Biomedical Engineering and Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology TR-917, AAEON Building, No. 43, Keelung Rd., Sec. 4, Da'an Dist. Taipei City 10607 Taiwan Republic of China
| | - Xin-An Chen
- Institute of Prevention Medicine, National Defense Medical Center Taipei 11490 Taiwan Republic of China
| | - Chia-Chun Wu
- Institute of Prevention Medicine, National Defense Medical Center Taipei 11490 Taiwan Republic of China
| |
Collapse
|
19
|
Kim SW, Kim ES, Park BJ, Jung YW, Kim DH, Lee SJ. Polycaprolactone/Anthocyanin-Based Electrospun Volatile Amines Gas Indicator with Improved Visibility by Varying Bi-Solvent Ratio: A Case of Intelligent Packaging of Mackerel. Foods 2023; 12:3850. [PMID: 37893742 PMCID: PMC10605992 DOI: 10.3390/foods12203850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/13/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Electrospun nanofibers have been applied as a new technology for gas indicators in food intelligent packaging. A poly(ε-caprolactone) (PCL)/red cabbage anthocyanin (RCA)-based nanofiber volatile amines gas indicator was developed by applying a bi-solvent of acetic acid (AA) and formic acid (FA) in electrospinning. The visibility of color change was improved from pink to blue, compared to blue to yellow-green, when using a single solvent of AA. The solutes of PCL (12.5, 15, 17.5, and 20%) and RCA (10, 20, 30, and 40%) and the solvents of AA/FA (9:1, 7:3, 5:5, 3:7, and 1:9) were applied in electrospinning under the condition of 12.5 cm, 1.0 mL/h, and 20 kV. The optimal microstructure with the thinnest fiber diameter and constant arrangement without forming NF beads appeared under the 7:3 FA/AA, 15% PCL, and 20% RCA condition. The indicator changed from pink to blue with the values of total color change (ΔE) of 10, 14, and 18 when exposed to the saturated gas of ammonia solutions of 8, 80, and 800 mM, respectively. The indicator was stable and unchanged in color for 28 days when exposed to light at room temperature. In the application to mackerel packaging, the built-in indicator changed from pink to purple regardless of storage temperature when the spoilage point was reached.
Collapse
Affiliation(s)
| | | | | | | | | | - Seung Ju Lee
- Department of Food and Biotechnology, Dongguk University-Seoul, Goyang-si 10326, Republic of Korea; (S.W.K.); (E.S.K.); (B.J.P.); (Y.W.J.); (D.H.K.)
| |
Collapse
|
20
|
Shaker A, Khedewy AT, Hassan MA, El-Baky MAA. Thermo-mechanical characterization of electrospun polyurethane/carbon-nanotubes nanofibers: a comparative study. Sci Rep 2023; 13:17368. [PMID: 37833445 PMCID: PMC10575888 DOI: 10.1038/s41598-023-44020-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Creating ultrathin, mountable fibers from a wide range of polymeric functional materials has made electrospinning an adequate approach to producing highly flexible and elastic materials. In this paper, electrospinning was utilized to produce thermoplastic polyurethane (TPU) nanofibrous membranes for the purpose of studying their thermal and mechanical properties. Towards a study of the effects of fiber orientation and multi-walled carbon nanotubes (MWCNTs) as a filler on both mechanical and thermal characteristics of electrospun TPU mats, an experimental comparison was held between unidirectional and randomly aligned TPU and TPU/MWCNTs nanofibrous structures. The incorporation of MWCNTs into randomly oriented TPU nanofibers resulted in a significant increase in Young's modulus (E), from 3.9 to 7.5 MPa. On the other hand, for unidirectionally spun fibers, Young's modulus increased from 17.1 to 18.4 MPa upon the addition of MWCNTs. However, dynamic mechanical analysis revealed a different behavior. The randomly oriented specimens exhibited a storage modulus with a significant increase from 180 to 614 MPa for TPU and TPU/MWCNTs mats, respectively, and a slight increase from 119 to 143 MPa for unidirectional TPU and TPU/MWCNTs mats, respectively. Meanwhile, the loss modulus increased with the addition of MWCNTs from 15.7 to 58.9 MPa and from 6.4 to 12 MPa for the random and aligned fibers, respectively. The glass transition values for all the mats fell in the temperature range of - 60 to - 20 °C. The thermal degradation of the membranes was not significantly affected by the addition of MWCNTs, indicating that the mixing of the two constituents did not change the TPU's polymer structure and that the TPU/MWCNTs nanocomposite exhibited stable thermal degradation properties.
Collapse
Affiliation(s)
- A Shaker
- Mechanical Design and Production Engineering Department, Zagazig University, Zagazig, 44519, Egypt.
| | - Amira T Khedewy
- Mechanical Design and Production Engineering Department, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed A Hassan
- Mechanical Design and Production Engineering Department, Zagazig University, Zagazig, 44519, Egypt
| | - Marwa A Abd El-Baky
- Mechanical Design and Production Engineering Department, Zagazig University, Zagazig, 44519, Egypt
| |
Collapse
|
21
|
Sanhueza C, Hermosilla J, Klein C, Chaparro A, Valdivia-Gandur I, Beltrán V, Acevedo F. Osteoinductive Electrospun Scaffold Based on PCL-Col as a Regenerative Therapy for Peri-Implantitis. Pharmaceutics 2023; 15:1939. [PMID: 37514125 PMCID: PMC10386026 DOI: 10.3390/pharmaceutics15071939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Peri-implantitis is a serious condition affecting dental implants that can lead to implant failure and loss of osteointegration if is not diagnosed and treated promptly. Therefore, the development of new materials and approaches to treat this condition is of great interest. In this study, we aimed to develop an electrospun scaffold composed of polycaprolactone (PCL) microfibers loaded with cholecalciferol (Col), which has been shown to promote bone tissue regeneration. The physical and chemical properties of the scaffold were characterized, and its ability to support the attachment and proliferation of MG-63 osteoblast-like cells was evaluated. Our results showed that the electrospun PCL-Col scaffold had a highly porous structure and good mechanical properties. The resulting scaffolds had an average fiber diameter of 2-9 μm and high elongation at break (near six-fold under dry conditions) and elasticity (Young modulus between 0.9 and 9 MPa under dry conditions). Furthermore, the Col-loaded scaffold was found to decrease cell proliferation when the Col content in the scaffolds increased. However, cytotoxicity analysis proved that the PCL scaffold on its own releases more lactate dehydrogenase into the medium than the scaffold containing Col at lower concentrations (PCL-Col A, PCL-Col B, and PCL-Col C). Additionally, the Col-loaded scaffold was shown to effectively promote the expression of alkaline phosphatase and additionally increase the calcium fixation in MG-63 cells. Our findings suggest that the electrospun membrane loaded with Col can potentially treat peri-implantitis by promoting bone formation. However, further studies are needed to assess the efficacy and safety of this membrane in vivo.
Collapse
Affiliation(s)
- Claudia Sanhueza
- Center of Excellence in Translational Medicine-Scientific and Technology Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4780000, Chile
| | - Jeyson Hermosilla
- Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Casilla 54-F, Temuco 4780000, Chile
| | - Catherine Klein
- Department of Periodontology, Center for Biomedical Research, Faculty of Dentistry, Universidad de Los Andes, Av. Plaza 2501, Las Condes, Santiago 7620157, Chile
| | - Alejandra Chaparro
- Department of Periodontology, Center for Biomedical Research, Faculty of Dentistry, Universidad de Los Andes, Av. Plaza 2501, Las Condes, Santiago 7620157, Chile
| | - Iván Valdivia-Gandur
- Biomedical Department, Universidad de Antofagasta, Avenida Angamos 601, Antofagasta 1270300, Chile
| | - Víctor Beltrán
- Clinical Investigation and Dental Innovation Center (CIDIC), Dental School, Universidad de La Frontera, Temuco 4780000, Chile
| | - Francisca Acevedo
- Center of Excellence in Translational Medicine-Scientific and Technology Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4780000, Chile
- Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Casilla 54-D, Temuco 4780000, Chile
| |
Collapse
|
22
|
Shim KS, Ryu DH, Jo HS, Kim KB, Kim DH, Park YK, Heo M, Cho HE, Yoon ES, Lee WJ, Roh TS, Song SY, Baek W. Breast Tissue Reconstruction Using Polycaprolactone Ball Scaffolds in a Partial Mastectomy Pig Model. Tissue Eng Regen Med 2023; 20:607-619. [PMID: 37017922 PMCID: PMC10313586 DOI: 10.1007/s13770-023-00528-x] [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: 01/01/2023] [Revised: 02/01/2023] [Accepted: 02/11/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Breast cancer patients suffer from lowered quality of life (QoL) after surgery. Breast conservancy surgery (BCS) such as partial mastectomy is being practiced and studied as an alternative to solve this problem. This study confirmed breast tissue reconstruction in a pig model by fabricating a 3-dimensional (3D) printed Polycaprolactone spherical scaffold (PCL ball) to fit the tissue resected after partial mastectomy. METHODS A 3D printed Polycaprolactone spherical scaffold with a structure that can help adipose tissue regeneration was produced using computer-aided design (CAD). A physical property test was conducted for optimization. In order to enhance biocompatibility, collagen coating was applied and a comparative study was conducted for 3 months in a partial mastectomy pig model. RESULTS In order to identify adipose tissue and fibroglandular tissue, which mainly constitute breast tissue, the degree of adipose tissue and collagen regeneration was confirmed in a pig model after 3 months. As a result, it was confirmed that a lot of adipose tissue was regenerated in the PCL ball, whereas more collagen was regenerated in the collagen-coated Polycaprolactone spherical scaffold (PCL-COL ball). In addition, as a result of confirming the expression levels of TNF-a and IL-6, it was confirmed that PCL ball showed higher levels than PCL-COL ball. CONCLUSION Through this study, we were able to confirm the regeneration of adipose tissue through a 3-dimensional structure in a pig model. Studies were conducted on medium and large-sized animal models for the final purpose of clinical use and reconstruction of human breast tissue, and the possibility was confirmed.
Collapse
Affiliation(s)
- Kyu-Sik Shim
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Da Hye Ryu
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Han-Saem Jo
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ki-Bum Kim
- PLCOskin Co., Ltd, Seoul, 120-752, Korea
| | | | | | - Min Heo
- PLCOskin Co., Ltd, Seoul, 120-752, Korea
| | - Hee-Eun Cho
- Department of Plastic and Reconstructive Surgery, Korea University Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, Korea
| | - Eul-Sik Yoon
- Department of Plastic and Reconstructive Surgery, Korea University Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, Korea
| | - Won Jai Lee
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Tai Suk Roh
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Seung Yong Song
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
| | - Wooyeol Baek
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
- PLCOskin Co., Ltd, Seoul, 120-752, Korea.
| |
Collapse
|
23
|
Sadat Mirbagheri M, Akhavan-Mahdavi S, Hasan A, Saeed Kharazmi M, Mahdi Jafari S. Propolis-loaded nanofiber scaffolds based on polyvinyl alcohol and polycaprolactone. Int J Pharm 2023:123186. [PMID: 37385356 DOI: 10.1016/j.ijpharm.2023.123186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/01/2023]
Abstract
Propolis-loaded electrospun nanofibers (PENs) have been regarded as promising candidates for biomedical purposes such as wound healing/dressing owing to their outstanding pharmacological and biological properties. This paper focuses on the development of electrospun nanofibers with optimum levels of propolis (PRP) and two polymer types (polycaprolactone (PCL) and polyvinyl alcohol (PVA)). Hence, response surface methodology (RSM) was employed to investigate the variation of the scaffold characteristics including porosity, average diameter, wettability, release, and tensile strength. For each response, a second-order polynomial model with a high coefficient of determination (R2) values ranging from 0.95 to 0.989 was developed using multiple linear regression analysis. The overall optimum region with the best characteristics was found to be at PCL/6% PRP and PVA/5% PRP. After selecting the optimal samples, the cytotoxicity assay showed no toxicity for the optimal concentrations of PRP. Furthermore, Fourier transform infrared (FTIR) spectra revealed that no new chemical functional groups were introduced in the PENs. Uniform fibers were found in the optimum samples without the appearance of a bead-like structure in the fibers. In conclusion, nanofibers containing the optimal concentration of PRP with suitable properties can be used in biomedical and tissue engineering.
Collapse
Affiliation(s)
- Mahnaz Sadat Mirbagheri
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Sahar Akhavan-Mahdavi
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Qatar
| | | | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
| |
Collapse
|
24
|
Cheraghi Bidsorkhi H, Faramarzi N, Ali B, Ballam LR, D'Aloia AG, Tamburrano A, Sarto MS. Wearable Graphene-based smart face mask for Real-Time human respiration monitoring. MATERIALS & DESIGN 2023; 230:111970. [PMID: 37162811 PMCID: PMC10151252 DOI: 10.1016/j.matdes.2023.111970] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 05/11/2023]
Abstract
After the pandemic of SARS-CoV-2, the use of face-masks is considered the most effective way to prevent the spread of virus-containing respiratory fluid. As the virus targets the lungs directly, causing shortness of breath, continuous respiratory monitoring is crucial for evaluating health status. Therefore, the need for a smart face mask (SFM) capable of wirelessly monitoring human respiration in real-time has gained enormous attention. However, some challenges in developing these devices should be solved to make practical use of them possible. One key issue is to design a wearable SFM that is biocompatible and has fast responsivity for non-invasive and real-time tracking of respiration signals. Herein, we present a cost-effective and straightforward solution to produce innovative SFMs by depositing graphene-based coatings over commercial surgical masks. In particular, graphene nanoplatelets (GNPs) are integrated into a polycaprolactone (PCL) polymeric matrix. The resulting SFMs are characterized morphologically, and their electrical, electromechanical, and sensing properties are fully assessed. The proposed SFM exhibits remarkable durability (greater than1000 cycles) and excellent fast response time (∼42 ms), providing simultaneously normal and abnormal breath signals with clear differentiation. Finally, a developed mobile application monitors the mask wearer's breathing pattern wirelessly and provides alerts without compromising user-friendliness and comfort.
Collapse
Affiliation(s)
- Hossein Cheraghi Bidsorkhi
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Negin Faramarzi
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Babar Ali
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Lavanya Rani Ballam
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Alessandro Giuseppe D'Aloia
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Alessio Tamburrano
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maria Sabrina Sarto
- Department of Astronautical, Electrical, and Energy Engineering (DIAEE), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
- Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| |
Collapse
|
25
|
Ricci C, Azimi B, Panariello L, Antognoli B, Cecchini B, Rovelli R, Rustembek M, Cinelli P, Milazzo M, Danti S, Lazzeri A. Assessment of Electrospun Poly(ε-caprolactone) and Poly(lactic acid) Fiber Scaffolds to Generate 3D In Vitro Models of Colorectal Adenocarcinoma: A Preliminary Study. Int J Mol Sci 2023; 24:9443. [PMID: 37298394 PMCID: PMC10253282 DOI: 10.3390/ijms24119443] [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: 04/29/2023] [Revised: 05/16/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Three-dimensional scaffold-based culture has been increasingly gaining influence in oncology as a therapeutic strategy for tumors with a high relapse percentage. This study aims to evaluate electrospun poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) scaffolds to create a 3D model of colorectal adenocarcinoma. Specifically, the physico-mechanical and morphological properties of PCL and PLA electrospun fiber meshes collected at different drum velocities, i.e., 500 rpm, 1000 rpm and 2500 rpm, were assessed. Fiber size, mesh porosity, pore size distribution, water contact angle and tensile mechanical properties were investigated. Caco-2 cells were cultured on the produced PCL and PLA scaffolds for 7 days, demonstrating good cell viability and metabolic activity in all the scaffolds. A cross-analysis of the cell-scaffold interactions with morphological, mechanical and surface characterizations of the different electrospun fiber meshes was carried out, showing an opposite trend of cell metabolic activity in PLA and PCL scaffolds regardless of the fiber alignment, which increased in PLA and decreased in PCL. The best samples for Caco-2 cell culture were PCL500 (randomly oriented fibers) and PLA2500 (aligned fibers). Caco-2 cells had the highest metabolic activity in these scaffolds, with Young's moduli in the range of 8.6-21.9 MPa. PCL500 showed Young's modulus and strain at break close to those of the large intestine. Advancements in 3D in vitro models of colorectal adenocarcinoma could move forward the development of therapies for this cancer.
Collapse
Affiliation(s)
- Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Luca Panariello
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Benedetta Antognoli
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Beatrice Cecchini
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Roberta Rovelli
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Meruyert Rustembek
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
| | - Patrizia Cinelli
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
- Centre for Instrumentation Sharing of University of Pisa (CISUP), Lungarno Pacinotti 43/44, 56126 Pisa, Italy
| | - Mario Milazzo
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
- Centre for Instrumentation Sharing of University of Pisa (CISUP), Lungarno Pacinotti 43/44, 56126 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
- Centre for Instrumentation Sharing of University of Pisa (CISUP), Lungarno Pacinotti 43/44, 56126 Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56126 Pisa, Italy
- Centre for Instrumentation Sharing of University of Pisa (CISUP), Lungarno Pacinotti 43/44, 56126 Pisa, Italy
| |
Collapse
|
26
|
Myalenko D, Fedotova O. Physical, Mechanical, and Structural Properties of the Polylactide and Polybutylene Adipate Terephthalate (PBAT)-Based Biodegradable Polymer during Compost Storage. Polymers (Basel) 2023; 15:polym15071619. [PMID: 37050232 PMCID: PMC10097148 DOI: 10.3390/polym15071619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Today, packaging is an integral part of any food product, preserving its quality and safety. The use of biodegradable packaging as an alternative to conventional polymers reduces the consumption of synthetic polymers and their negative impacts on the environment. The purpose of this study was to analyze the properties of a biodegradable compound based on polylactide (PLA) and polybutylene adipate terephthalate (PBAT). Test samples were made by blown extrusion. The structural, physical, and mechanical properties of the PLA/PBAT material were studied. The property variations during compost storage in the lab were monitored for 365 days. The physical and mechanical properties were measured in accordance with the GOST 14236-2017 (ISO 527-2:2012) standard. We measured the tensile strength and elongation at rupture. We used attenuated total reflectance Fourier transform infrared microscopy (ATR-FTIR) to analyze the changes in the material structure. This paper presents a comparative analysis of the strengths of a biodegradable material and grade H polyethylene film (manufactured to GOST 10354-82). PLA/PBAT's longitudinal and transverse tensile strengths are 14.08% and 32.59% lower than those of LDPE, respectively. Nevertheless, the results indicate that, given its physical and mechanical properties, the PLA/PBAT material can be an alternative to conventional PE film food packaging. The structural study results are in good agreement with the physical and mechanical tests. Micrographs clearly show the surface deformations of the biodegradable material. They increase with the compost storage duration. The scanning microscopy (SEM) surface analysis of the original PLA/PBAT films indicated that the PLA structure is similar to that of a multilayer shell or sponge, which is visible at medium and especially high magnification. We conclude that PLA/PBAT-based biodegradable materials are potential substitutes for conventional PE polymer films.
Collapse
Affiliation(s)
- Dmitry Myalenko
- All-Russian Dairy Research Institute, Lyusinovskaya Street, 35, 7, 115093 Moscow, Russia
| | - Olga Fedotova
- All-Russian Dairy Research Institute, Lyusinovskaya Street, 35, 7, 115093 Moscow, Russia
| |
Collapse
|
27
|
Nezamoleslami S, Fattahi A, Nemati H, Bagrezaie F, Pourmanouchehri Z, Kiaie SH. Electrospun sandwich-structured of polycaprolactone/gelatin-based nanofibers with controlled release of ceftazidime for wound dressing. Int J Biol Macromol 2023; 236:123819. [PMID: 36870631 DOI: 10.1016/j.ijbiomac.2023.123819] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/24/2022] [Accepted: 02/19/2023] [Indexed: 03/06/2023]
Abstract
In the present work, sandwich-like polycaprolactone/gelatin/polycaprolactone electrospun multilayered mats were implemented to control the release of ceftazidime (CTZ). The outer layers were made from polycaprolactone nanofibers (NFs), and CTZ-loaded gelatin provided an internal layer. The release profile of CTZ from mats was compared with monolayer gelatin mats and chemically cross-linked GEL mats. All the constructs were characterized using scanning electron microscopy (SEM), mechanical properties, viscosity, electrical conductivity, X-ray diffraction (XRD), and Fourier transform-infrared spectroscopy (FT-IR). In vitro cytotoxicity against normal fibroblasts as well as antibacterial activity of CTZ-loaded sandwich-like NFs were investigated by the MTT assay. The results showed that the drug release rate from the polycaprolactone/gelatin/polycaprolactone mat was slower than that of gelatin monolayer NFs, and the rate of release can be adjusted by changing the thickness of hydrophobic layers. The NFs exhibited high activity against Pseudomonas aeruginosa and Staphylococcus aureus, while no significant cytotoxicity was observed against human normal cells. Altogether, the final mat as a predominant antibacterial scaffold can be used for controlled drug release of antibacterial drugs as the wound healing dressings in tissue engineering.
Collapse
Affiliation(s)
- Sadaf Nezamoleslami
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Fattahi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Houshang Nemati
- Fertility & Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Bagrezaie
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Zahra Pourmanouchehri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Seyed Hossein Kiaie
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
28
|
Unique Fiber Morphologies from Emulsion Electrospinning—A Case Study of Poly(ε-caprolactone) and Its Applications. COLLOIDS AND INTERFACES 2023. [DOI: 10.3390/colloids7010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
The importance of electrospinning to produce biomimicking micro- and nano-fibrous matrices is realized by many who work in the area of fibers. Based on the solubility of the materials to be spun, organic solvents are typically utilized. The toxicity of the utilized organic solvent could be extremely important for various applications, including tissue engineering, biomedical, agricultural, etc. In addition, the high viscosities of such polymer solutions limit the use of high polymer concentrations and lower down productivity along with the limitations of obtaining desired fiber morphology. This emphasizes the need for a method that would allay worries about safety, toxicity, and environmental issues along with the limitations of using concentrated polymer solutions. To mitigate these issues, the use of emulsions as precursors for electrospinning has recently gained significant attention. Presence of dispersed and continuous phase in emulsion provides an easy route to incorporate sensitive bioactive functional moieties within the core-sheath fibers which otherwise could only be hardly achieved using cumbersome coaxial electrospinning process in solution or melt based approaches. This review presents a detailed understanding of emulsion behavior during electrospinning along with the role of various constituents and process parameters during fiber formation. Though many polymers have been studied for emulsion electrospinning, poly(ε-caprolactone) (PCL) is one of the most studied polymers for this technique. Therefore, electrospinning of PCL based emulsions is highlighted as unique case-study, to provide a detailed theoretical understanding, discussion of experimental results along with their suitable biomedical applications.
Collapse
|
29
|
Kahdim QS, Abdelmoula N, Al-Karagoly H, Albukhaty S, Al-Saaidi J. Fabrication of a Polycaprolactone/Chitosan Nanofibrous Scaffold Loaded with Nigella sativa Extract for Biomedical Applications. BIOTECH 2023; 12:biotech12010019. [PMID: 36810446 PMCID: PMC9944449 DOI: 10.3390/biotech12010019] [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: 12/27/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
In this study, biocompatible electrospun nanofiber scaffolds were produced using poly(-caprolactone (PCL)/chitosan (CS) and Nigella sativa (NS) seed extract, and their potential for biomedical applications was investigated. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), total porosity measurements, and water contact angle measurements were used to evaluate the electrospun nanofibrous mats. Additionally, the antibacterial activities of Escherichia coli and Staphylococcus aureus were investigated, as well as cell cytotoxicity and antioxidant activity, using MTT and DPPH assays, respectively. The obtained PCL/CS/NS nanofiber mat was observed by SEM to have a homogeneous and bead-free morphology, with average diameters of 81.19 ± 4.38 nm. Contact angle measurements showed that the wettability of the electrospun PCL/Cs fiber mats decreased with the incorporation of NS when compared to the PCL/CS nanofiber mats. Efficient antibacterial activity against S. aureus and E. coli was displayed, and an in vitro cytotoxic assay demonstrated that the normal murine fibroblast cell line (L929 cells) remained viable after 24, 48, and 72 h following direct contact with the produced electrospun fiber mats. The results suggest that the PCL/CS/NS hydrophilic structure and the densely interconnected porous design are biocompatible materials, with the potential to treat and prevent microbial wound infections.
Collapse
Affiliation(s)
- Qasim Shakir Kahdim
- College of Basic Education, University of Babylon, Babylon 51002, Iraq
- Laboratory of Multifunctional Materials and Applications (LaMMA), LR16ES18, Faculty of Sciences of Sfax, University of Sfax, BP 1171, Sfax 3000, Tunisia
- Correspondence: (Q.S.K.); (H.A.-K.)
| | - Najmeddine Abdelmoula
- Laboratory of Multifunctional Materials and Applications (LaMMA), LR16ES18, Faculty of Sciences of Sfax, University of Sfax, BP 1171, Sfax 3000, Tunisia
| | - Hassan Al-Karagoly
- College of Veterinary Medicine, University of Al-Qadisiyah, Al-Diwaniyah 58002, Iraq
- Correspondence: (Q.S.K.); (H.A.-K.)
| | - Salim Albukhaty
- Department of Chemistry, College of Science, University of Misan, Maysan 62001, Iraq
- College of Medicine, University of Warith Al-Anbiyaa, Karbala 56001, Iraq
| | - Jabbar Al-Saaidi
- College of Veterinary Medicine, University of Al-Qadisiyah, Al-Diwaniyah 58002, Iraq
| |
Collapse
|
30
|
PCL/Collagen/UA Composite Biomedical Dressing with Ordered Microfiberous Structure Fabricated by a 3D Near-Field Electrospinning Process. Polymers (Basel) 2022; 15:polym15010223. [PMID: 36616572 PMCID: PMC9824864 DOI: 10.3390/polym15010223] [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: 12/05/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023] Open
Abstract
In this work, a functionalized polycaprolactone (PCL) composite fiber combining calf-type I collagen (CO) and natural drug usnic acid (UA) was prepared, in which UA was used as an antibacterial agent. Through 3D near-field electrospinning, the mixed solution was prepared into PCL/CO/UA composite fibers (PCUCF), which has a well-defined perfect arrangement structure. The influence of electrospinning process parameters on fiber diameter was investigated, the optimal electrospinning parameters were determined, and the electric field simulation was conducted to verify the optimal parameters. The addition of 20% collagen made the composite fiber have good hydrophilicity and water absorption property. In the presence of PCUCF, 1% UA content significantly inhibited the growth rate of Gram-positive and negative bacteria in the plate culture. The AC-PCUCF (after crosslinking PCUCF) prepared by crosslinking collagen with genipin showed stronger mechanical properties, water absorption property, thermal stability, and drug release performance. Cell proliferation experiments showed that PCUCF and AC-PCUCF had no cytotoxicity and could promote cell proliferation and adhesion. The results show that PCL/CO/UA composite fiber has potential application prospects in biomedical dressing.
Collapse
|
31
|
Salimbeigi G, Cahill PA, McGuinness GB. Solvent system effects on the physical and mechanical properties of electrospun Poly(ε-caprolactone) scaffolds for in vitro lung models. J Mech Behav Biomed Mater 2022; 136:105493. [PMID: 36252423 DOI: 10.1016/j.jmbbm.2022.105493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022]
Abstract
Mechanical properties are among the key considerations for the design and fabrication of complex tissue models and implants. In addition to the choice of material and the processing technique, the solvent system can significantly influence the mechanical properties of scaffolds. Poly(ε-caprolactone) (PCL) has been abundantly used to develop constructs, fibrous in particular, for pharmaceutical and biomedical research due to the flexibility offered by PCL-based fibrous matrices. The effect of solvent type on the morphological features of electrospun fibres has been extensively studied. Nevertheless, comprehensive studies on the impact of the solvent system on the mechanical properties of electrospun PCL fibres are lacking. This study elucidates the relationship between topographical, physical and mechanical properties of electrospun PCL fibrous meshes upon using various solvent systems. The results of the mechanical investigation highlight the significance of inter-fibre bonds on the mechanical properties of the bulk membranes and that the option of altering the solvent system composition could be considered for tuning the mechanical properties of the PCL scaffolds to serve specific biomedical application requirements. The applicability of the developed membranes as artificial ECM (Extracellular matrix) in the lung will then be investigated and compared to the commercial Polycarbonate (PC) membranes that are often used for in vitro lung models.
Collapse
Affiliation(s)
- G Salimbeigi
- Centre for Medical Engineering Research, School of Mechanical & Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
| | - P A Cahill
- Vascular Biology and Therapeutics Laboratory, School of Biotechnology, Dublin City University, Dublin 9, Ireland
| | - G B McGuinness
- Centre for Medical Engineering Research, School of Mechanical & Manufacturing Engineering, Dublin City University, Dublin 9, Ireland.
| |
Collapse
|
32
|
Preparation of poly(ε-caprolactone) nanofibrous mats incorporating graphene oxide-silver nanoparticle hybrid composite by electrospinning method for potential antibacterial applications. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
33
|
Suárez DF, Pinzón-García AD, Sinisterra RD, Dussan A, Mesa F, Ramírez-Clavijo S. Uniaxial and Coaxial Nanofibers PCL/Alginate or PCL/Gelatine Transport and Release Tamoxifen and Curcumin Affecting the Viability of MCF7 Cell Line. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193348. [PMID: 36234476 PMCID: PMC9565524 DOI: 10.3390/nano12193348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/31/2022] [Accepted: 09/09/2022] [Indexed: 05/11/2023]
Abstract
Breast cancer is the second cause of cancer death in women worldwide. The search for therapeutic and preventive alternatives has increased in recent years. One synthetic drug for patients with hormone receptor-positive tumours is tamoxifen citrate (TMX). Curcumin (Cur) is a natural compound that is being tested. Both were coupled with nanoscale-controlled and sustained release systems to increase the effectiveness of the treatment and reduce adverse effects. We produced a controlled release system based on uniaxial and coaxial polymeric nanofibers of polycaprolactone (PCL), alginate (Alg) and gelatine (Gel) for the transport and release of TMX and Cur, as a new alternative to breast cancer treatment. Nanofibers combining PCL-Alg and PCL-Gel were fabricated by the electrospinning technique and physicochemically characterised by thermal analysis, absorption spectroscopy in the infrared region and X-ray diffraction. Morphology and size were studied by scanning electron microscopy. Additionally, the release profile of TMX and Cur was obtained by UV-Vis spectroscopy. Additionally, the cytotoxic effect on breast cancer cell line MCF7 and peripheral-blood mononuclear cells (PBMCs) from a healthy donor were evaluated by a Resazurin reduction assay. These assays showed that PCL-TMX nanofiber was highly toxic to both cell types, while PCL-Cur was less toxic.
Collapse
Affiliation(s)
- Diego Fernando Suárez
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil
| | - Ana Delia Pinzón-García
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil
| | - Rubén Darío Sinisterra
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil
| | - Anderson Dussan
- Departamento de Física, Grupo de Materiales Nanoestructurados y sus Aplicaciones, Universidad Nacional de Colombia, Bogotá 110011, Colombia
| | - Fredy Mesa
- Departamento de Física, Grupo de Materiales Nanoestructurados y sus Aplicaciones, Universidad Nacional de Colombia, Bogotá 110011, Colombia
| | - Sandra Ramírez-Clavijo
- Department of Biology, Grupo Ciencias Básicas Médicas, Faculty of Natural Science, Universidad del Rosario, Bogotá 110311, Colombia
- Correspondence:
| |
Collapse
|
34
|
Akkravijitkul N, Cheechana N, Rithchumpon P, Junpirom T, Limwanich W, Nalampang K, Thavornyutikarn P, Punyodom W, Meepowpan P. Scalable and Room-Temperature Ring-Opening Polymerization of ε-Caprolactone Catalyzed by Active Lithium Tetramethylene-Tethered Bis[ N-( N'-butylimidazol-2-ylidene)] N-Heterocyclic Carbene as a Lewis Acid Organocatalyst. J Org Chem 2022; 87:12052-12064. [PMID: 36073019 DOI: 10.1021/acs.joc.2c01062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Lewis acid organocatalytic system of lithium tetramethylene-tethered bis[N-(N'-butylimidazol-2-ylidene)] N-heterocyclic carbene (1,4-bisNHC) including lithium benzyloxide and benzyl alcohol has been successfully utilized in the ring-opening polymerization (ROP) of ε-caprolactone (CL) for the first time. The catalytic performance of this organic catalyst in the synthesis of high-molecular-weight polymers was investigated via bulk polymerization using different combinations of tetramethylene-tethered bis[N-(N'-butylimidazolium)] hexafluorophosphate (1,4-bis[Bim][PF6]), benzyl alcohol (BnOH), and n-butyl lithium (nBuLi) ([1,4-bis[Bim][PF6]]/[BnOH]/[nBuLi]) with the molar ratios of 0:2:2, 1:1:3, 1:2:3, and 1:2:4. The results showed that the molar ratio of 1:2:3 efficiently and rapidly initiated the bulk ROP of CL at room temperature with a high molar ratio of CL to 1,4-bis[Bim][PF6] of 3000/1 and produced the highest number of average-molecular-weight (Mn) poly(ε-caprolactone) (103,057 g mol-1) with the dispersity (D̵) and %conversion of 1.73 and 98% in a short period of time (152 s). From comparative studies, the relative polymerization rates of the bulk ROP of CL with different [1,4-bis[Bim][PF6]]/[BnOH]/[nBuLi] molar ratios was determined in the following order: 1:2:4 > 1:1:3 > 1:2:3 > 0:2:2. For mechanistic investigation, the bulk ROP mechanism of CL with our organic catalyst was proposed through the intramolecular bis-lithium-carbene interaction pathway for 1,4-bisNHC1,1,3, 1,4-bisNHC1,2,3, and 1,4-bisNHC1,2,4 systems.
Collapse
Affiliation(s)
- Natthapol Akkravijitkul
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Graduate School, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Nathaporn Cheechana
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Graduate School, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Puracheth Rithchumpon
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Graduate School, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Thiti Junpirom
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Wanich Limwanich
- Faculty of Sciences and Agricultural Technology, Rajamangala University of Technology Lanna, Chiang Mai 50300, Thailand
| | - Kanarat Nalampang
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Praput Thavornyutikarn
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Center of Excellence for Innovation in Chemistry (PERCH-CIC), Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| | - Puttinan Meepowpan
- Department of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Center of Excellence for Innovation in Chemistry (PERCH-CIC), Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand.,Center of Excellence in Materials Science and Technology, Chiang Mai University, 239 Huay Kaew Road, Chiang Mai 50200, Thailand
| |
Collapse
|
35
|
Shahriari S, Selvaganapathy PR. Integration of hydrogels into microfluidic devices with porous membranes as scaffolds enables their drying and reconstitution. BIOMICROFLUIDICS 2022; 16:054108. [PMID: 36313189 PMCID: PMC9616609 DOI: 10.1063/5.0100589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Hydrogels are a critical component of many microfluidic devices. They have been used in cell culture applications, biosensors, gradient generators, separation microdevices, micro-actuators, and microvalves. Various techniques have been utilized to integrate hydrogels into microfluidic devices such as flow confinement and gel photopolymerization. However, in these methods, hydrogels are typically introduced in post processing steps which add complexity, cost, and extensive fabrication steps to the integration process and can be prone to user induced variations. Here, we introduce an inexpensive method to locally integrate hydrogels into microfluidic devices during the fabrication process without the need for post-processing. In this method, porous and fibrous membranes such as electrospun membranes are used as scaffolds to hold gels and they are patterned using xurography. Hydrogels in various shapes as small as 200 μm can be patterned using this method in a scalable manner. The electrospun scaffold facilitates drying and reconstitution of these gels without loss of shape or leakage that is beneficial in a number of applications. Such reconstitution is not feasible using other hydrogel integration techniques. Therefore, this method is suitable for long time storage of hydrogels in devices which is useful in point-of-care (POC) devices. This hydrogel integration method was used to demonstrate gel electrophoretic concentration and quantification of short DNA (150 bp) with different concentrations in rehydrated agarose embedded in electrospun polycaprolactone (PCL) membrane. This can be developed further to create a POC device to quantify cell-free DNA, which is a prognostic biomarker for severe sepsis patients.
Collapse
Affiliation(s)
- Shadi Shahriari
- Department of Mechanical Engineering, McMaster University, Hamilton, Ontario L8S 4L7, Canada
| | | |
Collapse
|
36
|
Optimization of Oligomer Chitosan/Polyvinylpyrrolidone Coating for Enhancing Antibacterial, Hemostatic Effects and Biocompatibility of Nanofibrous Wound Dressing. Polymers (Basel) 2022; 14:polym14173541. [PMID: 36080616 PMCID: PMC9460443 DOI: 10.3390/polym14173541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/06/2022] [Accepted: 08/13/2022] [Indexed: 11/17/2022] Open
Abstract
A synergistic multilayer membrane design is necessary to satisfy a multitude of requirements of an ideal wound dressing. In this study, trilayer dressings with asymmetric wettability, composed of electrospun polycaprolactone (PCL) base membranes coated with oligomer chitosan (COS) in various concentrations of polyvinylpyrrolidone (PVP), are fabricated for wound dressing application. The membranes are expected to synergize the hygroscopic, antibacterial, hemostatic, and biocompatible properties of PCL and COS. The wound dressing was coated by spraying the solution of 3% COS and 6% PVP on the PCL base membrane (PVP6–3) three times, which shows good interaction with biological subjects, including bacterial strains and blood components. PVP6–3 samples confirm the diameter of inhibition zones of 20.0 ± 2.5 and 17.9 ± 2.5 mm against Pseudomonas aeruginosa and Staphylococcus aureus, respectively. The membrane induces hemostasis with a blood clotting index of 74% after 5 min of contact. In the mice model, wounds treated with PVP6–3 closed 95% of the area after 10 days. Histological study determines the progression of skin regeneration with the construction of granulation tissue, new vascular systems, and hair follicles. Furthermore, the newly-growth skin shares structural resemblances to that of native tissue. This study suggests a simple approach to a multi-purpose wound dressing for clinical treatment.
Collapse
|
37
|
Hashemi S, Mortazavi SA, Moghimi HR, Darbasizadeh B. Development and Evaluation of a Novel Methotrexate-Loaded Electrospun Patch to Alleviate Psoriasis Plaques. Drug Dev Ind Pharm 2022; 48:355-366. [PMID: 36000909 DOI: 10.1080/03639045.2022.2117373] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To achieve an effective topical formulation of Methotrexate (MTX) as a first-line treatment of psoriasis, we formulated three MTX-loaded electrospun nanofibrous patches composed of polycaprolactone (PCL), Eudragit L100, and a mixture of them. SIGNIFICANCE Topical delivery of MTX provides an appropriate therapeutic performance while circumventing the life-threatening side effects of systemic administration. METHODS Three MTX-loaded electrospun nanofibrous patches were prepared and characterized in terms of size and morphology (using SEM), thermal behavior (by TGA and DSC), and crystalline structure (using XRD). Furthermore, the wettability and mechanical strength of samples were investigated through water contact angle and tensile strength tests. Also, the encapsulation efficiency of MTX was calculated. Subsequently, in vitro drug release profile of each formulation was obtained and different kinetic models were fitted to achieve the best-matched model. Accordingly, the ex vivo skin permeation of MTX was studied for the optimum formulation. RESULTS All samples showed appropriate morphology, thermal behavior, and encapsulation efficiency. Also, XRD results showed that MTX is dispersed within the polymeric matrices in the amorphous state (with no crystalline region). Release studies demonstrated that MTX-loaded Eudragit L100-PCL formulation outperformed in terms of mechanical behavior and in vitro drug release. This formulation also exhibited better skin permeation. CONCLUSION The obtained controlled-release MTX-loaded electrospun patches seem promising to provide a long-acting topical treatment of psoriatic plaques with minimized systemic side effects.
Collapse
Affiliation(s)
- Shiva Hashemi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Alireza Mortazavi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Moghimi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behzad Darbasizadeh
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
38
|
Nasari M, Poursharifi N, Fakhrali A, Banitaba SN, Mohammadi S, Semnani D. Fabrication of novel PCL/PGS fibrous scaffold containing HA and GO through simultaneous electrospinning-electrospray technique. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2112678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Mina Nasari
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Nazanin Poursharifi
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Aref Fakhrali
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran
| | | | | | - Dariush Semnani
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran
| |
Collapse
|
39
|
Bikiaris ND, Koumentakou I, Michailidou G, Kostoglou M, Vlachou M, Barmpalexis P, Karavas E, Papageorgiou GZ. Investigation of Molecular Weight, Polymer Concentration and Process Parameters Factors on the Sustained Release of the Anti-Multiple-Sclerosis Agent Teriflunomide from Poly( ε-caprolactone) Electrospun Nanofibrous Matrices. Pharmaceutics 2022; 14:pharmaceutics14081693. [PMID: 36015319 PMCID: PMC9412398 DOI: 10.3390/pharmaceutics14081693] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/06/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
In the current work, a series of PCL polyesters with different molecular weights was synthesized and used for the fabrication of nanofibrous patches via electrospinning, as sustained release matrices for leflunomide’s active metabolite, teriflunomide (TFL). The electrospinning conditions for each sample were optimized and it was found that only one material with high Mn (71,000) was able to produce structures with distinct fibers devoid of the presence of beads. The successful preparation of the fibers was determined by scanning electron microscopy (SEM).TFL (10, 20 and 30 wt%) in three different concentrations was incorporated into the prepared nanofibers, which were used in in vitro drug release experiments. The drug-loaded nanofibrous formulations were further characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and powder X-ray diffractometry (XRD).It was found that TFL was incorporated in an amorphous form inside the polymeric nanofibers and that significant molecular interactions were formed between the drug and the polyester. Additionally, in vitro dissolution studies showed that the PCL/TFL-loaded nanofibers exhibit a biphasic release profile, having an initial burst release phase, followed by a sustained release until 250 h. Finally, a kinetic analysis of the obtained profiles revealed that the drug release was directly dependent on the amount TFL incorporated into the nanofibers.
Collapse
Affiliation(s)
- Nikolaos D. Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioanna Koumentakou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgia Michailidou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Margaritis Kostoglou
- Laboratory of General and Inorganic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Marilena Vlachou
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimioupoli-Zografou, 15784 Athens, Greece
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evangelos Karavas
- Pharmathen S.A., Pharmaceutical Industry, Dervenakion Str. 6, Pallini Attikis, 15351 Athens, Greece
| | - George Z. Papageorgiou
- Department of Chemistry, University of Ioannina, P.O. Box 1186, 45110 Ioannina, Greece
- Correspondence:
| |
Collapse
|
40
|
Vijayan AN, Solaimuthu A, Murali P, Gopi J, Y MT, R AP, Korrapati PS. Decorin mediated biomimetic PCL-gelatin nano-framework to impede scarring. Int J Biol Macromol 2022; 219:907-918. [PMID: 35952816 DOI: 10.1016/j.ijbiomac.2022.08.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/03/2022] [Accepted: 08/06/2022] [Indexed: 11/05/2022]
Abstract
Scars occur as a result of fibrosis after tissue damage or surgery and reports suggest that excessive Transforming growth factor-β (TGF-β) activity during the process of wound healing leads to progressive fibrosis. Decorin is an extracellular matrix (ECM) protein which regulates collagen fibrillogenesis. However, targeted delivery and effective protein therapy remains a challenge owing to degradation byproteases. Hence, we aimed to deliver Decorin in a sustainable mode for the reduction of TGF-β levels and subsequent scar formation. Herein, we have fabricated PCL-Gelatin bio-mimetic scaffolds to optimize the bio-activity and provide localized delivery of recombinant Decorin. The degradation and drug release patterns reveals that this biomaterial is biodegradable and offers sustained release of the recombinant Decorin. Decorin loaded nanofiber displayed lower adhesion and proliferation rates in in-vitro conditions. Moreover, Decorin loaded scaffolds demonstrated morphological changes in cells, specifically targeting the myofibroblast. The expression of TGF-β was also scrutinized to understand the effect of Decorin loaded nanofibers. Besides, in the in-vitro fibrotic model, Decorin loaded nanofibers efficiently reduced the expression of ECM related proteins. Therefore, we report the sustained delivery of the recombinant Decorin from nanofiber dressing to potentially obstruct scar formation during the process of wound healing.
Collapse
Affiliation(s)
- Ane Nishitha Vijayan
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anbuthiruselvan Solaimuthu
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Padmaja Murali
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Janani Gopi
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India
| | - Madhan Teja Y
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India
| | - Akshaya Priya R
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India
| | - Purna Sai Korrapati
- Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| |
Collapse
|
41
|
Pebdeni AB, Hosseini M, Barkhordari A. Smart fluorescence aptasensor using nanofiber functionalized with carbon quantum dot for specific detection of pathogenic bacteria in the wound. Talanta 2022; 246:123454. [DOI: 10.1016/j.talanta.2022.123454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 01/23/2023]
|
42
|
Samie M, Khan AF, Hardy JG, Yameen MA. Electrospun Antibacterial Composites for Cartilage Tissue Engineering. Macromol Biosci 2022; 22:e2200219. [PMID: 35851562 DOI: 10.1002/mabi.202200219] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/30/2022] [Indexed: 11/11/2022]
Abstract
Implantation of biomaterials capable of the controlled release of antibacterials during articular cartilage repair may prevent postoperative infections. Herein, biomaterials are prepared with biomimetic architectures (nonwoven mats of fibers) via electrospinning that are composed of poly(ɛ-caprolactone), poly(lactic acid), and Bombyx mori silk fibroin (with varying ratios) and, optionally, an antibiotic drug (cefixime trihydrate). The composition, morphology, and mechanical properties of the nanofibrous mats are characterized using scanning electron microscope, Fourier transform infrared spectroscopy, and tensile testing. The nonwoven mats have nanoscale fibers (typical diameters of 324-725 nm) and are capable of controlling the release profiles of the drug, with antibacterial activity against Gram +ve and Gram -ve bacteria (two common strains of human pathogenic bacteria, Staphylococcus aureus and Escherichia coli) under in vitro static conditions. The drug loaded nanofiber mats display cytocompatibility comparable to pure poly(ɛ-caprolactone) nanofibers when cultured with National Institutes of Health (NIH) NIH-3T3 fibroblast cell line and have long-term potential for clinical applications in the field of pharmaceutical sciences.
Collapse
Affiliation(s)
- Muhammad Samie
- Interdisciplinary Research Centre in Biomedical Materials COMSATS University Islamabad Lahore campus Lahore 54000 Pakistan
- Department of Pharmacy COMSATS University Islamabad Abbottabad campus Abbottabad Khyber Pakhtunkhwa 22060 Pakistan
- Department of Chemistry Lancaster University Lancaster Lancashire LA1 4YB UK
- Materials Science Institute Lancaster University Lancaster Lancashire LA1 4YB UK
- Institute of Pharmaceutical Sciences Khyber Medical University Peshawar Khyber Pakhtunkhwa 25100 Pakistan
| | - Ather Farooq Khan
- Interdisciplinary Research Centre in Biomedical Materials COMSATS University Islamabad Lahore campus Lahore 54000 Pakistan
| | - John George Hardy
- Department of Chemistry Lancaster University Lancaster Lancashire LA1 4YB UK
- Materials Science Institute Lancaster University Lancaster Lancashire LA1 4YB UK
| | - Muhammad Arfat Yameen
- Department of Pharmacy COMSATS University Islamabad Abbottabad campus Abbottabad Khyber Pakhtunkhwa 22060 Pakistan
| |
Collapse
|
43
|
Guadagno L, Raimondo M, Vertuccio L, Lamparelli EP, Ciardulli MC, Longo P, Mariconda A, Della Porta G, Longo R. Electrospun Membranes Designed for Burst Release of New Gold-Complexes Inducing Apoptosis of Melanoma Cells. Int J Mol Sci 2022; 23:ijms23137147. [PMID: 35806152 PMCID: PMC9267035 DOI: 10.3390/ijms23137147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 01/27/2023] Open
Abstract
Two non-commercial metallic Au-based complexes were tested against one of the most aggressive malignant melanomas of the skin (MeWo cells), through cell viability and time-lapse live-cell imaging system assays. The tests with the complexes were carried out both in the form of free metallic complexes, directly in contact with the MeWo cell line culture, and embedded in fibers of Polycaprolactone (PCL) membranes produced by the electrospinning technique. Membranes functionalized with complexes were prepared to evaluate the efficiency of the membranes against the melanoma cells and therefore their feasibility in the application as an antitumoral patch for topical use. Both series of tests highlighted a very effective antitumoral activity, manifesting a very relevant cell viability inhibition after both 24 h and 48 h. In the case of the AuM1 complex at the concentration of 20 mM, melanoma cells completely died in this short period of time. A mortality of around 70% was detected from the tests performed using the membranes functionalized with AuM1 complex at a very low concentration (3 wt.%), even after 24 h of the contact period. The synthesized complexes also manifest high selectivity with respect to the MeWo cells. The peculiar structural and morphological organization of the nanofibers constituting the membranes allows for a very effective antitumoral activity in the first 3 h of treatment. Experimental points of the release profiles were perfectly fitted with theoretical curves, which easily allow interpretation of the kinetic phenomena occurring in the release of the synthesized complexes in the chosen medium.
Collapse
Affiliation(s)
- Liberata Guadagno
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy;
- Correspondence: (L.G.); (R.L.)
| | - Marialuigia Raimondo
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy;
| | - Luigi Vertuccio
- Department of Engineering, University of Campania “Luigi Vanvitelli”, 813031 Aversa, Italy;
| | - Erwin Pavel Lamparelli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.C.C.); (G.D.P.)
| | - Maria Camilla Ciardulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.C.C.); (G.D.P.)
| | - Pasquale Longo
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy;
| | | | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy; (E.P.L.); (M.C.C.); (G.D.P.)
- Interdepartment Centre BIONAM, Università di Salerno, 84084 Fisciano, Italy
| | - Raffaele Longo
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy;
- Correspondence: (L.G.); (R.L.)
| |
Collapse
|
44
|
Derakhshan MA, Nazeri N, Khoshnevisan K, Heshmat R, Omidfar K. Three-layered PCL-collagen nanofibers containing melilotus officinalis extract for diabetic ulcer healing in a rat model. J Diabetes Metab Disord 2022; 21:313-321. [PMID: 35673445 PMCID: PMC9167341 DOI: 10.1007/s40200-022-00976-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/09/2022] [Indexed: 01/22/2023]
Abstract
Active wound dressing with physicochemical and biological characteristics is more effective in healing diabetic foot ulcer (DFU). In this study, a 3-layer electrospun nanofiber wound dressings was fabricated, while its outer, middle and inner layers of the scaffold were made of PCL, PCL/collagen and collagen nanofibers, respectively. Various amounts of Melilotus officinalis extract were also loaded in the collagen nanofibers as a biologically active compound. The diameter and morphology of the obtained nanofibers were investigated by scanning electron microscopy (SEM) and FT-IR spectroscopy to analyse the composition of prepared dressings. The efficacy of the fabricated dressings as wound healing agent was assessed in streptozotocin-induced diabetic rats. The results demonstrated that the mean diameter of nanofibers are 373 ± 179 nm, 266 ± 108 nm, 160 ± 52 nm, and 393 ± 131 nm for PCL, PCL/collagen, pure collagen, and collagen nanofibers containing 0.08 g extract, respectively. The histo-pathology and histomorphometry assessments demonstrate the herbal extract-loaded electrospun dressings (especially containing 0.08 g of the extract) are promising in improving the diabetic ulcer healing. Our results indicated that the combination of drug did not compromise the physicochemical characteristics of wound dressing, while improving its biological activities.
Collapse
Affiliation(s)
- Mohammad Ali Derakhshan
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Niloofar Nazeri
- Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Kamyar Khoshnevisan
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Heshmat
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kobra Omidfar
- Biosensor Research Center, Endocrinology and Metabolism Molecular–Cellular Sciences Institute, Tehran University of Medical Sciences, P.O. Box 14395/1179, Tehran, I.R. Iran
| |
Collapse
|
45
|
Anaya Mancipe JM, Lopes Dias M, Moreira Thiré RMDS. Type I collagen – poly(vinyl alcohol) electrospun nanofibers: FTIR study of the collagen helical structure preservation. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2029887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Javier Mauricio Anaya Mancipe
- COPPE/Programa de Engenharia Metalúrgica E de Materiais – PEMM, Universidade Federal Do Rio de Janeiro (Ufrj), Rio de Janeiro, Brazil
- Instituto de Macromoléculas Professora Eloisa Mano - IMA, Universidade Federal Do Rio de Janeiro (Ufrj), Rio de Janeiro, Brazil
| | - Marcos Lopes Dias
- Instituto de Macromoléculas Professora Eloisa Mano - IMA, Universidade Federal Do Rio de Janeiro (Ufrj), Rio de Janeiro, Brazil
| | | |
Collapse
|
46
|
Deng X, Gould M, Ali MA. A review of current advancements for wound healing: Biomaterial applications and medical devices. J Biomed Mater Res B Appl Biomater 2022; 110:2542-2573. [PMID: 35579269 PMCID: PMC9544096 DOI: 10.1002/jbm.b.35086] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 12/12/2022]
Abstract
Wound healing is a complex process that is critical in restoring the skin's barrier function. This process can be interrupted by numerous diseases resulting in chronic wounds that represent a major medical burden. Such wounds fail to follow the stages of healing and are often complicated by a pro‐inflammatory milieu attributed to increased proteinases, hypoxia, and bacterial accumulation. The comprehensive treatment of chronic wounds is still regarded as a significant unmet medical need due to the complex symptoms caused by the metabolic disorder of the wound microenvironment. As a result, several advanced medical devices, such as wound dressings, wearable wound monitors, negative pressure wound therapy devices, and surgical sutures, have been developed to correct the chronic wound environment and achieve skin tissue regeneration. Most medical devices encompass a wide range of products containing natural (e.g., chitosan, keratin, casein, collagen, hyaluronic acid, alginate, and silk fibroin) and synthetic (e.g., polyvinyl alcohol, polyethylene glycol, poly[lactic‐co‐glycolic acid], polycaprolactone, polylactic acid) polymers, as well as bioactive molecules (e.g., chemical drugs, silver, growth factors, stem cells, and plant compounds). This review addresses these medical devices with a focus on biomaterials and applications, aiming to deliver a critical theoretical reference for further research on chronic wound healing.
Collapse
Affiliation(s)
- Xiaoxuan Deng
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Maree Gould
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M Azam Ali
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| |
Collapse
|
47
|
Electrospun carbon nanofibres: Preparation, characterization and application for adsorption of pollutants from water and air. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120666] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
48
|
Abedin Dargoush S, Hanaee-Ahvaz H, Irani S, Soleimani M, Khatami SM, Sohi AN. A composite bilayer scaffold functionalized for osteochondral tissue regeneration in rat animal model. J Tissue Eng Regen Med 2022; 16:559-574. [PMID: 35319813 DOI: 10.1002/term.3297] [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: 10/18/2021] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 12/28/2022]
Abstract
Osteochondral defects are defined most typically by damages to both cartilage and subchondral bone tissue. It is challenging to develop bilayered scaffolds that regenerate both of these lineages simultaneously. In the present study, an electrospun bilayer nanofibrous scaffold was designed to repair osteochondral lesions. A nanocomposite of hydroxyapatite, strontium, and reduced graphene oxide were combined with polycaprolactone polymer to fabricate the osteogenic differentiation layer. Additionally, the chondrogenic differentiation layer was also formed using polyethersulfone polymer and benzyl hyaluronan. The physical, mechanical, and chemical properties of the scaffolds were determined, and adipose-derived mesenchymal stem cells were cultured on each layer to evaluate their biocompatibility and differentiation potential. Cell viability, mineralization, alkaline phosphatase enzyme (ALP) expression, and extracellular calcium deposition were measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, alizarin red staining, ALP activity, and calcium deposition. Real-time polymerase chain reaction (PCR) was used to assess the expression levels of osteogenic (Collagen I, Runx II, ALP, Osteocalcin) and chondrogenic (Sox9, Collagen II (Col II), Aggrecan) genes. Finally, the osteochondral scaffold was created by electrospinning these two layers for 2 days. The scaffold was grafted into the osteochondral defect of a Wistar rat's knee. 60 days after surgery, real-time PCR, immunohistochemistry (IHC), and hematoxylin and eosin staining were performed. The expression of chondrogenic and osteogenic genes was increased compared to the control group, as confirmed by real-time PCR. Furthermore, IHC revealed a rise in Col II and Collagen X expression. Finally, in vivo and in vitro studies have shown that the electrospun bilayer scaffold is biocompatible, which facilitates osteochondral healing.
Collapse
Affiliation(s)
| | | | - Shiva Irani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyedeh Mahsa Khatami
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | |
Collapse
|
49
|
Weigel T, Malkmus C, Weigel V, Wußmann M, Berger C, Brennecke J, Groeber-Becker F, Hansmann J. Fully Synthetic 3D Fibrous Scaffolds for Stromal Tissues-Replacement of Animal-Derived Scaffold Materials Demonstrated by Multilayered Skin. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106780. [PMID: 34933407 DOI: 10.1002/adma.202106780] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/14/2021] [Indexed: 06/14/2023]
Abstract
The extracellular matrix (ECM) of soft tissues in vivo has remarkable biological and structural properties. Thereby, the ECM provides mechanical stability while it still can be rearranged via cellular remodeling during tissue maturation or healing processes. However, modern synthetic alternatives fail to provide these key features among basic properties. Synthetic matrices are usually completely degraded or are inert regarding cellular remodeling. Based on a refined electrospinning process, a method is developed to generate synthetic scaffolds with highly porous fibrous structures and enhanced fiber-to-fiber distances. Since this approach allows for cell migration, matrix remodeling, and ECM synthesis, the scaffold provides an ideal platform for the generation of soft tissue equivalents. Using this matrix, an electrospun-based multilayered skin equivalent composed of a stratified epidermis, a dermal compartment, and a subcutis is able to be generated without the use of animal matrix components. The extension of classical dense electrospun scaffolds with high porosities and motile fibers generates a fully synthetic and defined alternative to collagen-gel-based tissue models and is a promising system for the construction of tissue equivalents as in vitro models or in vivo implants.
Collapse
Affiliation(s)
- Tobias Weigel
- Translational Center for Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), 97082, Würzburg, Germany
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Christoph Malkmus
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Verena Weigel
- Translational Center for Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), 97082, Würzburg, Germany
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Maximiliane Wußmann
- Translational Center for Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), 97082, Würzburg, Germany
| | - Constantin Berger
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Julian Brennecke
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Florian Groeber-Becker
- Translational Center for Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research (ISC), 97082, Würzburg, Germany
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
| | - Jan Hansmann
- Department for Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070, Würzburg, Germany
- Faculty of Electrical Engineering, University of Applied Sciences Würzburg-Schweinfurt, 97421, Schweinfurt, Germany
| |
Collapse
|
50
|
Antibacterial Electrospun Polycaprolactone Nanofibers Reinforced by Halloysite Nanotubes for Tissue Engineering. Polymers (Basel) 2022; 14:polym14040746. [PMID: 35215658 PMCID: PMC8876556 DOI: 10.3390/polym14040746] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Due to its slow degradation rate, polycaprolactone (PCL) is frequently used in biomedical applications. This study deals with the development of antibacterial nanofibers based on PCL and halloysite nanotubes (HNTs). Thanks to a combination with HNTs, the prepared nanofibers can be used as low-cost nanocontainers for the encapsulation of a wide variety of substances, including drugs, enzymes, and DNA. In our work, HNTs were used as a nanocarrier for erythromycin (ERY) as a model antibacterial active compound with a wide range of antibacterial activity. Nanofibers based on PCL and HNT/ERY were prepared by electrospinning. The antibacterial activity was evaluated as a sterile zone of inhibition around the PCL nanofibers containing 7.0 wt.% HNT/ERY. The morphology was observed with SEM and TEM. The efficiency of HNT/ERY loading was evaluated with thermogravimetric analysis. It was found that the nanofibers exhibited outstanding antibacterial properties and inhibited both Gram- (Escherichia coli) and Gram+ (Staphylococcus aureus) bacteria. Moreover, a significant enhancement of mechanical properties was achieved. The potential uses of antibacterial, environmentally friendly, nontoxic, biodegradable PCL/HNT/ERY nanofiber materials are mainly in tissue engineering, wound healing, the prevention of bacterial infections, and other biomedical applications.
Collapse
|