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Hu Q, Huang Z, Zhang H, Ma P, Feng R, Feng J. Coaxial electrospun Ag-NPs-loaded endograft membrane with long-term antibacterial function treating mycotic aortic aneurysm. Mater Today Bio 2024; 25:100940. [PMID: 38298561 PMCID: PMC10827516 DOI: 10.1016/j.mtbio.2023.100940] [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: 08/01/2023] [Revised: 11/23/2023] [Accepted: 12/30/2023] [Indexed: 02/02/2024] Open
Abstract
The use of endovascular stent-graft has become an important option in the treatment of aortic pathologies. However, the currently used endograft membranes have limited ability to prevent bacterial colonization. This makes them unsuitable for the treatment of mycotic aneurysms, as the infection is prone to progress after endograft implantation. Moreover, even in non-mycotic aortic pathologies, endograft infections can occur in the short or long term, especially for patients with diabetes mellitus or in immune insufficiency conditions. So, this study aimed to develop a kind of Ag-NPs-loaded endograft membrane by coaxial electrospinning technique, and a series of physical and chemical properties and biological properties of the Ag-NPs-loaded membrane were characterized. Animal experiments conducted in pigs confirmed that the Ag-NPs-loaded membrane was basically non-toxic, exhibited good biocompatibility, and effectively prevented bacterial growth in a mycotic aortic aneurysm model. In conclusion, the Ag-NPs-loaded membrane exhibited good biocompatibility, good anti-infection function and slow-release of Ag-NPs for long-term bacteriostasis. Thus, the Ag-NPs-loaded membrane might hold potential for preventing infection progression and treating mycotic aortic aneurysms in an endovascular way.
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Affiliation(s)
- Qingxi Hu
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, 200072, China
- National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai, 200444, China
| | - Zhenwei Huang
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
| | - Haiguang Zhang
- Rapid Manufacturing Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, 200072, China
- National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai, 200444, China
| | - Pengcheng Ma
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Rui Feng
- Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jiaxuan Feng
- Vascular surgery department, Ruijin Hospital, affiliated to Medical school of Shanghai Jiaotong University, Shanghai, PR China
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2
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Lecina-Tejero Ó, Pérez MÁ, García-Gareta E, Borau C. The rise of mechanical metamaterials: Auxetic constructs for skin wound healing. J Tissue Eng 2023; 14:20417314231177838. [PMID: 37362902 PMCID: PMC10285607 DOI: 10.1177/20417314231177838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/06/2023] [Indexed: 06/28/2023] Open
Abstract
Auxetic materials are known for their unique ability to expand/contract in multiple directions when stretched/compressed. In other words, they exhibit a negative Poisson's ratio, which is usually positive for most of materials. This behavior appears in some biological tissues such as human skin, where it promotes wound healing by providing an enhanced mechanical support and facilitating cell migration. Skin tissue engineering has been a growing research topic in recent years, largely thanks to the rapid development of 3D printing techniques and technologies. The combination of computational studies with rapid manufacturing and tailored designs presents a huge potential for the future of personalized medicine. Overall, this review article provides a comprehensive overview of the current state of research on auxetic constructs for skin healing applications, highlighting the potential of auxetics as a promising treatment option for skin wounds. The article also identifies gaps in the current knowledge and suggests areas for future research. In particular, we discuss the designs, materials, manufacturing techniques, and also the computational and experimental studies on this topic.
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Affiliation(s)
- Óscar Lecina-Tejero
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
| | - María Ángeles Pérez
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet University Hospital, 50009 Zaragoza, Aragon, Spain
| | - Elena García-Gareta
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet University Hospital, 50009 Zaragoza, Aragon, Spain
- Division of Biomaterials & Tissue Engineering, UCL Eastman Dental Institute, University College London, London, UK
| | - Carlos Borau
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Centro Universitario de la Defensa de Zaragoza, Zaragoza, 50090, Spain
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3
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Güneş Çimen C, Dündar MA, Demirel Kars M, Avcı A. Enhancement of PCL/PLA Electrospun Nanocomposite Fibers Comprising Silver Nanoparticles Encapsulated with Thymus Vulgaris L. Molecules for Antibacterial and Anticancer Activities. ACS Biomater Sci Eng 2022; 8:3717-3732. [PMID: 35948432 DOI: 10.1021/acsbiomaterials.2c00611] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Silver nanoparticles (AgNPs) have been recognized for their outstanding antibacterial activities, which are required for antibacterial coating materials in therapeutic applications. A bacterial-resistant electrospun nanofibrous mat made of polycaprolactone (PCL) in combination with polylactide acid (PLA) containing silver nanoparticles encapsulated with Thymus vulgaris L. (thyme) extract (eAgNPs) was fabricated in order to assess the potential of applicability in biomedical applications such as cancer treatment, wound healing, or surgical sutures. In the current study, PCL and PLA used as the basis polymers were blended with biosynthesized eAgNPs, pure AgNPs, and thyme extract (TE) to observe the effects of additives in terms of antibacterial and anticancer activity and morphologic, thermal, mechanical, biocompatibility, and biodegradability properties. The biological characteristics of fabricated electrospun nanofibrous mats were evaluated in vitro. Physicochemical characteristics of the nanofibrous mats were examined by UV-vis spectrophotometry, scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX), Fourier-transform infrared spectroscopy (FTIR), mechanical tensile testing, X-ray diffraction (XRD), thermogravimetric examination (TGA), and water contact angles (WCAs). The results showed that a biodegradable nanofiber scaffold with a mean fiber diameter of 280 nm is morphologically homogeneous and highly hydrophobic, has higher tensile strength than PCL/PLA nanocomposite fiber, and is resistant to Escherichia coli and Staphylococcus aureus. The cytotoxic and anticancer properties of nanomaterials were defined using L929 and SK-MEL-30 cells. The developed material inhibited cell proliferation and led to apoptosis of cell lines. It can be suggested that the use of Thymus vulgaris L. extract-encapsulated silver nanoparticle-doped PCL/PLA nanofibers produced by the electrospinning method has the potential for cancer therapy in skin tumor cell lines.
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Affiliation(s)
- Cansu Güneş Çimen
- Department of Biomedical Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya 42090, Turkey
| | - Mehmet Akif Dündar
- Department of Otorhinolaryngology, Necmettin Erbakan University School of Medicine, Konya 42080, Turkey
| | - Meltem Demirel Kars
- Department of Biomedical Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya 42090, Turkey
| | - Ahmet Avcı
- Department of Biomedical Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya 42090, Turkey
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Hu WW, Lin YT. Alginate/polycaprolactone composite fibers as multifunctional wound dressings. Carbohydr Polym 2022; 289:119440. [DOI: 10.1016/j.carbpol.2022.119440] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 12/20/2022]
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5
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Chemical modification, electrospinning and biological activities of pluronic F68. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04356-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Pien N, Van de Maele Y, Parmentier L, Meeremans M, Mignon A, De Schauwer C, Peeters I, De Wilde L, Martens A, Mantovani D, Van Vlierberghe S, Dubruel P. Design of an electrospun tubular construct combining a mechanical and biological approach to improve tendon repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:51. [PMID: 35639212 PMCID: PMC9156498 DOI: 10.1007/s10856-022-06673-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Hand tendon injuries represent a major clinical problem and might dramatically diminish a patient's life quality. In this study, a targeted solution for flexor tendon repair was developed by combining a mechanical and biological approach. To this end, a novel acrylate-endcapped urethane-based polymer (AUP) was synthesized and its physico-chemical properties were characterized. Next, tubular repair constructs were developed using electrospinning of the AUP material with incorporated naproxen and hyaluronic acid (i.e. anti-inflammatory and anti-adhesion compounds, respectively), and with a tubular braid as mechanical reinforcement. Tensile testing of the repair constructs using ex vivo sheep tendons showed that the developed repair constructs fulfilled the required mechanical properties for tendon repair (i.e. minimal ultimate stress of 4 MPa), with an ultimate stress of 6.4 ± 0.6 MPa. Moreover, in vitro biological assays showed that the developed repair tubes and the incorporated bioactive components were non-cytotoxic. In addition, when equine tenocytes and mesenchymal stem cells were co-cultured with the repair tubes, an increased production of collagen and non-collagenous proteins was observed. In conclusion, this novel construct in which a mechanical approach (fulfilling the required mechanical properties) was combined with a biological approach (incorporation of bioactive compounds), shows potential as flexor tendon repair application. Graphical abstract.
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Affiliation(s)
- N Pien
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, 2325 Rue de l'Universite, Quebec, QC, G1V 0A6, Canada
| | - Y Van de Maele
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium
| | - L Parmentier
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium
| | - M Meeremans
- Faculty of Veterinary Medicine, Department of Translational Physiology, Infectiology and Public Health, Ghent University, Salisburylaan 133, 9280, Merelbeke, Belgium
| | - A Mignon
- Smart Polymeric Biomaterials, Surface and Interface Engineered Materials, KU Leuven, Andreas Vesaliusstraat 13 - box 2600, 3000, Leuven, Belgium
| | - C De Schauwer
- Faculty of Veterinary Medicine, Department of Translational Physiology, Infectiology and Public Health, Ghent University, Salisburylaan 133, 9280, Merelbeke, Belgium
| | - I Peeters
- Faculty of Medicine and Health Sciences, Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, ingang 46, 9000, Gent, Belgium
| | - L De Wilde
- Faculty of Medicine and Health Sciences, Department of Human Structure and Repair, Ghent University Hospital, C. Heymanslaan 10, ingang 46, 9000, Gent, Belgium
| | - A Martens
- Faculty of Veterinary Medicine, Department of Large Animal Surgery, Anaesthesia and Orthopaedics, Ghent University, Salisburylaan 133, 9280, Merelbeke, Belgium
| | - D Mantovani
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, 2325 Rue de l'Universite, Quebec, QC, G1V 0A6, Canada
| | - S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium
| | - P Dubruel
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium.
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Vargas Romero E, Lim LT, Suárez Mahecha H, Bohrer BM. The Effect of Electrospun Polycaprolactone Nonwovens Containing Chitosan and Propolis Extracts on Fresh Pork Packaged in Linear Low-Density Polyethylene Films. Foods 2021; 10:foods10051110. [PMID: 34067772 PMCID: PMC8156044 DOI: 10.3390/foods10051110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/04/2022] Open
Abstract
Fresh meat products are highly perishable and require optimal packaging conditions to maintain and potentially extend shelf-life. Recently, researchers have developed functional, active packaging systems that are capable of interacting with food products, package headspace, and/or the environment to enhance product shelf-life. Among these systems, antimicrobial/antioxidant active packaging has gained considerable interest for delaying/preventing microbial growth and deteriorative oxidation reactions. This study evaluated the effectiveness of active linear low-density polyethylene (LLDPE) films coated with a polycaprolactone/chitosan nonwoven (Film 1) or LLDPE films coated with a polycaprolactone/chitosan nonwoven fortified with Colombian propolis extract (Film 2). The active LLDPE films were evaluated for the preservation of fresh pork loin (longissimus dorsi) chops during refrigerated storage at 4 °C for up to 20 d. The meat samples were analyzed for pH, instrumental color, purge loss, thiobarbituric acid reactive substances (TBARS), and microbial stability (aerobic mesophilic and psychrophilic bacteria). The incorporation of the propolis-containing nonwoven layer provided antioxidant and antimicrobial properties to LLDPE film, as evidenced by improved color stability, no differences in lipid oxidation, and a delay of 4 d for the onset of bacteria growth of pork chops during the refrigerated storage period.
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Affiliation(s)
- Emeli Vargas Romero
- Instituto de Ciencia y Tecnología de Alimentos, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (E.V.R.); (H.S.M.)
| | - Loong-Tak Lim
- Department of Food Science, University of Guelph, Guelph, ON N1G-2W1, Canada;
| | - Héctor Suárez Mahecha
- Instituto de Ciencia y Tecnología de Alimentos, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (E.V.R.); (H.S.M.)
| | - Benjamin M. Bohrer
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-614-247-4951
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8
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Antimicrobial Active Bioplastics Using Triangular Silver Nanoplate Integrated Polycaprolactone and Polylactic Acid Films. MATERIALS 2021; 14:ma14051132. [PMID: 33670834 PMCID: PMC7957712 DOI: 10.3390/ma14051132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 11/17/2022]
Abstract
An innovative antimicrobial technology for plastic surfaces is presented. We report the synthesis and scale-up of triangular silver nanoplates (TSNPs) and their integration into polycaprolactone (PCL) and polylactic acid (PLA) polymers through a solvent-casting technique. The TSNPs have a high geometric aspect ratio and strong local surface plasmon resonance (LSPR) response, which provides an effective tool for monitoring their integrity during processing and integration with the biodegradable plastics. An aqueous-based seed-mediated chemical method was used to synthesize the TSNPs, and characterisation was carried out using TEM and UV (Ultraviolet)-VIS (Visible) spectroscopy to measure LSPR profiles. The UV-VIS spectra of silver seeds and TSNPs exhibited characteristic peaks at 395 and 600 nm respectively. Synthesized TSNPs were coated with thiol-terminated polyethylene glycol (SH-PEG) and transferred into chloroform in order to effect compatibility with PCL and PLA. TSNP/PCL and TSNP/PLA composite films were prepared by solvent casting. The morphological structure, thermal, mechanical, and antimicrobial properties of the TSNP-incorporated composite films were evaluated. Results showed the TSNP-treated films had a rougher surface than the bare films. Insignificant changes in the thermal properties of TSNP-treated films compared to bare ones were also observed, which indicated the thermal stability of the composite films. The tensile strength and antimicrobial properties of the composite films were increased after TSNP incorporation. TSNP/PCL and TSNP/PLA films exhibited improved antimicrobial activity against Escherichia coli and Staphylococcus aureus with antimicrobial effect (AE) values ranging between 0.10 and 0.35. The obtained results and demonstrated TSNP production scalability validate the TSNP treated PCL and PLA films as a composite material with desirable antimicrobial effect for wide-ranging surface applications.
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9
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Design and development of a reinforced tubular electrospun construct for the repair of ruptures of deep flexor tendons. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111504. [PMID: 33321603 DOI: 10.1016/j.msec.2020.111504] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 01/26/2023]
Abstract
This research aims at developing a more potent solution for deep flexor tendon repair by combining a mechanical and biological approach. A reinforced, multi-layered electrospun tubular construct is developed, composed of three layers: an inner electrospun layer containing an anti-inflammatory component (Naproxen), a middle layer of braided monofilament as reinforcement and an outer electrospun layer containing an anti-adhesion component (hyaluronic acid, HA). In a first step, a novel acrylate endcapped urethane-based precursor (AUP) is developed and characterized by measuring molar mass, acrylate content and thermo-stability. The AUP material is benchmarked against commercially available poly(ε-caprolactone) (PCL). Next, the materials are processed into multi-layered, tubular constructs with bio-active components (Naproxen and HA) using electrospinning. In vitro assays using human fibroblasts show that incorporation of the bio-active components is successful and not-cytotoxic. Moreover, tensile testing using ex vivo sheep tendons prove that the developed multi-layered constructs fulfill the required strength for tendon repair (i.e. 2.79-3.98 MPa), with an ultimate strength of 8.56 ± 1.92 MPa and 8.36 ± 0.57 MPa for PCL and AUP/PCL constructs respectively. In conclusion, by combining a mechanical approach (improved mechanical properties) with the incorporation of bio-active compounds (biological approach), this solution shows its potential for application in deep flexor tendon repair.
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10
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Fluorescent polymer nanofibers based on polycaprolactone and dansyl derivatives for development of latent fingerprints. J Appl Polym Sci 2020. [DOI: 10.1002/app.49804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Papaphilippou PC, Karamanis P, Stavrinou K, Krasia‐Christoforou T. Functionalized Electrospun Fibrous Membranes as Effective Adsorbents for Benzoic Acid from Aqueous Media. ChemistrySelect 2020. [DOI: 10.1002/slct.202001893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Petri Ch. Papaphilippou
- University of CyprusDepartment of Mechanical and Manufacturing Engineering P. O. Box 20537, 1678 Nicosia Cyprus
- European University Cyprus, School of ScienceDepartment of Life Sciences 1516 Nicosia Cyprus
| | - Petros Karamanis
- University of CyprusDepartment of Mechanical and Manufacturing Engineering P. O. Box 20537, 1678 Nicosia Cyprus
| | - Kyriakos Stavrinou
- University of CyprusDepartment of Mechanical and Manufacturing Engineering P. O. Box 20537, 1678 Nicosia Cyprus
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Maziya K, Dlamini BC, Malinga SP. Hyperbranched polymer nanofibrous membrane grafted with silver nanoparticles for dual antifouling and antibacterial properties against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Fibrous Materials Made of Poly( ε-caprolactone)/Poly(ethylene oxide) -b-Poly( ε-caprolactone) Blends Support Neural Stem Cells Differentiation. Polymers (Basel) 2019; 11:polym11101621. [PMID: 31597231 PMCID: PMC6835932 DOI: 10.3390/polym11101621] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/22/2019] [Accepted: 09/27/2019] [Indexed: 02/07/2023] Open
Abstract
In this work, we design and produce micron-sized fiber mats by blending poly(ε-caprolactone) (PCL) with small amounts of block copolymers poly(ethylene oxide)m-block-poly(ε-caprolactone)n (PEOm-b-PCLn) using electrospinning. Three different PEOm-b-PCLn block copolymers, with different molecular weights of PEO and PCL, were synthesized by ring opening polymerization of ε-caprolactone using PEO as initiator and stannous octoate as catalyst. The polymer blends were prepared by homogenous solvent mixing using dichloromethane for further electrospinning procedures. After electrospinning, it was found that the addition to PCL of the different block copolymers produced micron-fibers with smaller width, equal or higher hydrophilicity, lower Young modulus, and rougher surfaces, as compared with micron-fibers obtained only with PCL. Neural stem progenitor cells (NSPC), isolated from rat brains and grown as neurospheres, were cultured on the fibrous materials. Immunofluorescence assays showed that the NSPC are able to survive and even differentiate into astrocytes and neurons on the synthetic fibrous materials without any growth factor and using the fibers as guidance. Disassembling of the cells from the NSPC and acquisition of cell specific molecular markers and morphology progressed faster in the presence of the block copolymers, which suggests the role of the hydrophilic character and porous topology of the fiber mats.
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Jaganathan SK, Mani MP. Electrospinning synthesis and assessment of physicochemical properties and biocompatibility of cobalt nitrate fibers for wound healing applications. AN ACAD BRAS CIENC 2019; 91:e20180237. [PMID: 31365648 DOI: 10.1590/0001-3765201920180237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 09/10/2018] [Indexed: 01/14/2023] Open
Abstract
The aim of this study was to develop polyurethane (PU) wound dressing incorporated with cobalt nitrate using electrospinning technique. The morphology analysis revealed that the developed composites exhibited reduced fiber and pore diameter than the pristine PU. The electrospun membranes exhibited average porosity in the range of 67% - 71%. Energy-dispersive X-ray spectra (EDS) showed the presence of cobalt in the PU matrix. The interaction of cobalt nitrate with PU matrix was evident in Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The contact angle results indicated the improved wettability of the prepared PU/cobalt nitrate composites (82° ± 2) than the pure PU (100° ± 1). The incorporation of cobalt nitrate into the PU matrix enhanced the surface roughness and mechanical strength as evident in the atomic force microscopy (AFM) and tensile test analysis. The blood compatibility assays revealed the anticoagulant nature of the prepared composites by displaying prolonged blood clotting time than the PU control. Further, the developed composite exhibited less toxicity nature as revealed in the hemolysis and cytotoxicity studies. It was observed that the PU wound dressing added with cobalt nitrate fibers exhibited enhanced physicochemical, better blood compatibility parameters and enhanced fibroblast proliferation rates which may serve as a potential candidate for wound dressings.
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Affiliation(s)
- Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,IJNUTM Cardiovascular Engineering Center, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
| | - Mohan P Mani
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
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Remya KR, Chandran S, John A, Ramesh P. Pamidronate-encapsulated electrospun polycaprolactone as a potential bone regenerative scaffold. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519835142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study explores the potential of electrospun polycaprolactone scaffolds for the controlled delivery of pamidronate disodium pentahydrate, an amino-bisphosphonate drug used for the treatment of osteoporosis. Major drawbacks associated with oral bisphosphonate therapy are its poor bioavailability and gastrointestinal side-effects. Herein, we used polycaprolactone, a well-known Food and Drug Administration–approved biomaterial, as the delivering vehicle for pamidronate disodium pentahydrate. Scaffolds based on polycaprolactone with three different formulations (1, 3, and 5 wt%) of pamidronate disodium pentahydrate were fabricated by electrospinning, and a comparative study was carried out to evaluate the effect of pamidronate disodium pentahydrate on physico-mechanical and biological properties of polycaprolactone. The observations from Fourier-transform infrared spectra and thermogravimetric analysis confirmed the successful incorporation of pamidronate disodium pentahydrate into polycaprolactone scaffolds. The study also revealed that pamidronate disodium pentahydrate–loaded scaffolds exhibited improved hydrophilicity as well as superior mechanical properties as depicted by the contact angle measurements and mechanical property evaluation. In vitro drug release studies of pamidronate disodium pentahydrate–loaded scaffolds in phosphate buffer saline at 37°C showed that all the scaffolds exhibited controlled release of pamidronate disodium pentahydrate. In vitro degradation studies further revealed that pamidronate disodium pentahydrate incorporated polycaprolactone scaffolds degraded faster as depicted by the fiber rupture and drop in mechanical properties. In vitro cell culture studies using human osteosarcoma cell lines demonstrated that pamidronate disodium pentahydrate–loaded polycaprolactone scaffolds were cytocompatible. The human osteosarcoma cells had favorable interaction with the scaffolds, and the viability of adhered cells was depicted by the fluorescein diacetate/propidium iodide staining. MTT assay further revealed enhanced cell viability on PCL/PDS3 scaffolds. Our findings bespeak that the pamidronate disodium pentahydrate–encapsulated electrospun polycaprolactone scaffolds have the potential to serve as a promising drug delivery vehicle for osteoporotic bone defect repair.
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Affiliation(s)
- KR Remya
- Division of Polymeric Medical Devices, Department of Medical Devices Engineering, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology–Trivandrum, Trivandrum, India
| | - Sunitha Chandran
- Department of Microbiology and Immunology, Louisiana State University Shreveport, Shreveport, LA, USA
| | - Annie John
- Department of Biochemistry, University of Kerala, Trivandrum, India
| | - P Ramesh
- Division of Polymeric Medical Devices, Department of Medical Devices Engineering, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology–Trivandrum, Trivandrum, India
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Tourlomousis F, Jia C, Karydis T, Mershin A, Wang H, Kalyon DM, Chang RC. Machine learning metrology of cell confinement in melt electrowritten three-dimensional biomaterial substrates. MICROSYSTEMS & NANOENGINEERING 2019; 5:15. [PMID: 31057942 PMCID: PMC6431680 DOI: 10.1038/s41378-019-0055-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 01/18/2019] [Accepted: 01/29/2019] [Indexed: 05/22/2023]
Abstract
Tuning cell shape by altering the biophysical properties of biomaterial substrates on which cells operate would provide a potential shape-driven pathway to control cell phenotype. However, there is an unexplored dimensional scale window of three-dimensional (3D) substrates with precisely tunable porous microarchitectures and geometrical feature sizes at the cell's operating length scales (10-100 μm). This paper demonstrates the fabrication of such high-fidelity fibrous substrates using a melt electrowriting (MEW) technique. This advanced manufacturing approach is biologically qualified with a metrology framework that models and classifies cell confinement states under various substrate dimensionalities and architectures. Using fibroblasts as a model cell system, the mechanosensing response of adherent cells is investigated as a function of variable substrate dimensionality (2D vs. 3D) and porous microarchitecture (randomly oriented, "non-woven" vs. precision-stacked, "woven"). Single-cell confinement states are modeled using confocal fluorescence microscopy in conjunction with an automated single-cell bioimage data analysis workflow that extracts quantitative metrics of the whole cell and sub-cellular focal adhesion protein features measured. The extracted multidimensional dataset is employed to train a machine learning algorithm to classify cell shape phenotypes. The results show that cells assume distinct confinement states that are enforced by the prescribed substrate dimensionalities and porous microarchitectures with the woven MEW substrates promoting the highest cell shape homogeneity compared to non-woven fibrous substrates. The technology platform established here constitutes a significant step towards the development of integrated additive manufacturing-metrology platforms for a wide range of applications including fundamental mechanobiology studies and 3D bioprinting of tissue constructs to yield specific biological designs qualified at the single-cell level.
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Affiliation(s)
- Filippos Tourlomousis
- The Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Chao Jia
- Biomedical Engineering Department, Stevens Institute of Technology, Hoboken, NJ USA
| | - Thrasyvoulos Karydis
- The Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Andreas Mershin
- The Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Hongjun Wang
- Biomedical Engineering Department, Stevens Institute of Technology, Hoboken, NJ USA
| | - Dilhan M. Kalyon
- Biomedical Engineering Department, Stevens Institute of Technology, Hoboken, NJ USA
- Chemical Engineering and Materials Science Department, Stevens Institute of Technology, Hoboken, NJ USA
| | - Robert C. Chang
- Mechanical Engineering Department, Stevens Institute of Technology, Hoboken, NJ USA
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17
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De Paula MMM, Bassous NJ, Afewerki S, Harb SV, Ghannadian P, Marciano FR, Viana BC, Tim CR, Webster TJ, Lobo AO. Understanding the impact of crosslinked PCL/PEG/GelMA electrospun nanofibers on bactericidal activity. PLoS One 2018; 13:e0209386. [PMID: 30571704 PMCID: PMC6301679 DOI: 10.1371/journal.pone.0209386] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/28/2018] [Indexed: 12/14/2022] Open
Abstract
Herein, we report the design of electrospun ultrathin fibers based on the combination of three different polymers polycaprolactone (PCL), polyethylene glycol (PEG), and gelatin methacryloyl (GelMA), and their potential bactericidal activity against three different bacteria Staphylococcus aureus (S. aureus), Pseudomonas aeruginosa (P. aeruginosa), and Methicillin-resistant Staphylococcus aureus (MRSA). We evaluated the morphology, chemical structure and wettability before and after UV photocrosslinking of the produced scaffolds. Results showed that the developed scaffolds presented hydrophilic properties after PEG and GelMA incorporation. Moreover, they were able to significantly reduce gram-positive, negative, and MRSA bacteria mainly after UV photocrosslinking (PCL:PEG:GelMa-UV). Furthermore, we performed a series of study for gaining a better mechanistic understanding of the scaffolds bactericidal activity through protein adsorption study and analysis of the reactive oxygen species (ROS) levels. Furthermore, the in vivo subcutaneous implantation performed in rats confirmed the biocompatibility of our designed scaffolds.
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Affiliation(s)
- Mirian Michelle Machado De Paula
- Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
| | - Nicole Joy Bassous
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
| | - Samson Afewerki
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Division of Gastroenterology, Brigham and Women´s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Samarah Vargas Harb
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
- Institute of Chemistry, UNESP-São Paulo State University, Araraquara, São Paulo, Brazil
| | - Paria Ghannadian
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
| | - Fernanda Roberta Marciano
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
- Institute of Science and Technology, Brasil University, São Paulo, SP, Brazil
| | - Bartolomeu Cruz Viana
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, PPGCM-Materials Science and Engineering graduate program, UFPI-Federal University of Piauí, Teresina, PI, Brazil
- Department of Physics, UFPI-Federal University of Piauí, Teresina, PI, Brazil
| | - Carla Roberta Tim
- Institute of Science and Technology, Brasil University, São Paulo, SP, Brazil
| | - Thomas Jay Webster
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts, United States of America
| | - Anderson Oliveira Lobo
- Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
- Institute of Science and Technology, Brasil University, São Paulo, SP, Brazil
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, PPGCM-Materials Science and Engineering graduate program, UFPI-Federal University of Piauí, Teresina, PI, Brazil
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: ,
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18
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Magnetic nanoparticle-loaded electrospun poly(ε-caprolactone) nanofibers for drug delivery applications. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0830-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Souza SOL, Cotrim MAP, Oréfice RL, Carvalho SG, Dutra JAP, de Paula Careta F, Resende JA, Villanova JCO. Electrospun poly(ε-caprolactone) matrices containing silver sulfadiazine complexed with β-cyclodextrin as a new pharmaceutical dosage form to wound healing: preliminary physicochemical and biological evaluation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:67. [PMID: 29748753 DOI: 10.1007/s10856-018-6079-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
Cooperation between researchers in the areas of medical, pharmaceutical and materials science has facilitated the development of pharmaceutical dosage forms that elicit therapeutic effects and protective action with a single product. In addition to optimizing pharmacologic action, such dosage forms provide greater patient comfort and increase success and treatment compliance. In the present work, we prepared semipermeable bioactive electrospun fibers for use as wound dressings containing silver sulfadiazine complexed with β-cyclodextrin in a poly(Ɛ-caprolactone) nanofiber matrix aiming to reduce the direct contact between silver and skin and to modulate the drug release. Wound dressings were prepared by electrospinning, and were subjected to ATR-FT-IR and TG/DTG assays to evaluate drug stability. The hydrophilicity of the fibrous nanostructure in water and PBS buffer was studied by goniometry. Electrospun fibers permeability and swelling capacity were assessed, and a dissolution test was performed. In vitro biological tests were realized to investigate the biological compatibility and antimicrobial activity. We obtained flexible matrices that were each approximately 1.0 g in weight. The electrospun fibers were shown to be semipermeable, with water vapor transmission and swelling indexes compatible with the proposed objective. The hydrophilicity was moderate. Matrices containing pure drug modulated drug release adequately during 24 h but presented a high hemolytic index. Complexation promoted a decrease in the hemolytic index and in the drug release but did not negatively impact antimicrobial activity. The drug was released predominantly by diffusion. These results indicate that electrospun PCL matrices containing β-cyclodextrin/silver sulfadiazine inclusion complexes are a promising pharmaceutical dosage form for wound healing.
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Affiliation(s)
- Sarah Oliveira Lamas Souza
- Departamento de Engenharia Metalúrgica e de Materiais, Universidade Federal de Minas Gerais - UFMG, Av. Antônio Carlos, 6627, Bloco 2, Pampulha, 31.270-900, Belo Horizonte, MG, Brazil
| | - Monique Alvarenga Pinto Cotrim
- Departamento de Engenharia Metalúrgica e de Materiais, Universidade Federal de Minas Gerais - UFMG, Av. Antônio Carlos, 6627, Bloco 2, Pampulha, 31.270-900, Belo Horizonte, MG, Brazil
| | - Rodrigo Lambert Oréfice
- Departamento de Engenharia Metalúrgica e de Materiais, Universidade Federal de Minas Gerais - UFMG, Av. Antônio Carlos, 6627, Bloco 2, Pampulha, 31.270-900, Belo Horizonte, MG, Brazil
| | - Suzana Gonçalves Carvalho
- Universidade Federal do Espírito Santo - UFES, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e de Saúde, Av. Alto Universitário, sem número, Guararema, Alegre, ES, 29.500-000, Brazil
| | - Jessyca Aparecida Paes Dutra
- Departamento de Farmácia, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo - UFES, Av. Marechal Campos, 1468, Vitória, ES, 29.043-900, Brazil
| | - Francisco de Paula Careta
- Universidade Federal do Espírito Santo - UFES, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e de Saúde, Av. Alto Universitário, sem número, Guararema, Alegre, ES, 29.500-000, Brazil
| | - Juliana Alves Resende
- Universidade Federal do Espírito Santo - UFES, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e de Saúde, Av. Alto Universitário, sem número, Guararema, Alegre, ES, 29.500-000, Brazil
| | - Janaina Cecília Oliveira Villanova
- Universidade Federal do Espírito Santo - UFES, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e de Saúde, Av. Alto Universitário, sem número, Guararema, Alegre, ES, 29.500-000, Brazil.
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20
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Liu DQ, Cheng ZQ, Feng QJ, Li HJ, Ye SF, Teng B. Polycaprolactone nanofibres loaded with 20( S)-protopanaxadiol for in vitro and in vivo anti-tumour activity study. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180137. [PMID: 29892448 PMCID: PMC5990777 DOI: 10.1098/rsos.180137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/27/2018] [Indexed: 05/02/2023]
Abstract
In this work, 20(S)-protopanaxadiol (PPD)-loaded polycaprolactone (PCL) nanofibres were successfully fabricated by the electrospinning technique using Tween 80 as a solubilizer. Firstly, smooth and continuous nanofibres were collected using suitable solvents and appropriate spinning conditions. Secondly, nanofibre mats were characterized by scanning electron microscopy, thermogravimetric (TG) analysis, Fourier transform infrared spectroscopy and mechanical testing. Finally, nanofibrous membranes were evaluated using water contact angle, in vitro drug release, biodegradation test, in vitro and in vivo anti-tumour activity and cell apoptosis assay. Scanning electron microscopic observations indicated that the diameter of the drug-loaded nanofibres increased with the increase of drug concentration. TG analysis and mechanical test showed that nanofibres were equipped with great thermal and mechanical properties. Biodegradation test exhibited that the structure of fabricated nanofibres had a certain degree of change after 15 days. An in vitro release study showed that PPD from drug-loaded nanofibres could be released in a sustained and prolonged mode. The cytotoxic effect of drug-loaded nanofibre mats examined on human laryngeal carcinoma cells (Hep-2 cells) demonstrated that the prepared nanofibres had a remarkable anti-tumour effect. Meanwhile, the drug-loaded fibre mats showed a super anti-tumour effect in an in vivo anti-tumour study. All in all, PCL nanofibres could be a potential carrier of PPD for cancer treatment.
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Affiliation(s)
- Dan-qing Liu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Zhi-qiang Cheng
- College of Resources and Environment, Jilin Agriculture University, Changchun 130118, People's Republic of China
| | - Qing-jie Feng
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - He-jie Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Shu-feng Ye
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Bo Teng
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
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21
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Liu DQ, Cheng ZQ, Feng QJ, Li HJ, Ye SF, Teng B. Polycaprolactone nanofibres loaded with 20( S)-protopanaxadiol for in vitro and in vivo anti-tumour activity study. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180137. [PMID: 29892448 DOI: 10.5061/dryad.bt010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/27/2018] [Indexed: 05/18/2023]
Abstract
In this work, 20(S)-protopanaxadiol (PPD)-loaded polycaprolactone (PCL) nanofibres were successfully fabricated by the electrospinning technique using Tween 80 as a solubilizer. Firstly, smooth and continuous nanofibres were collected using suitable solvents and appropriate spinning conditions. Secondly, nanofibre mats were characterized by scanning electron microscopy, thermogravimetric (TG) analysis, Fourier transform infrared spectroscopy and mechanical testing. Finally, nanofibrous membranes were evaluated using water contact angle, in vitro drug release, biodegradation test, in vitro and in vivo anti-tumour activity and cell apoptosis assay. Scanning electron microscopic observations indicated that the diameter of the drug-loaded nanofibres increased with the increase of drug concentration. TG analysis and mechanical test showed that nanofibres were equipped with great thermal and mechanical properties. Biodegradation test exhibited that the structure of fabricated nanofibres had a certain degree of change after 15 days. An in vitro release study showed that PPD from drug-loaded nanofibres could be released in a sustained and prolonged mode. The cytotoxic effect of drug-loaded nanofibre mats examined on human laryngeal carcinoma cells (Hep-2 cells) demonstrated that the prepared nanofibres had a remarkable anti-tumour effect. Meanwhile, the drug-loaded fibre mats showed a super anti-tumour effect in an in vivo anti-tumour study. All in all, PCL nanofibres could be a potential carrier of PPD for cancer treatment.
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Affiliation(s)
- Dan-Qing Liu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Zhi-Qiang Cheng
- College of Resources and Environment, Jilin Agriculture University, Changchun 130118, People's Republic of China
| | - Qing-Jie Feng
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - He-Jie Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Shu-Feng Ye
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
| | - Bo Teng
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital, Jilin University, Changchun 130041, People's Republic of China
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22
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Rajapaksha P. P, Power A, Chandra S, Chapman J. Graphene, electrospun membranes and granular activated carbon for eliminating heavy metals, pesticides and bacteria in water and wastewater treatment processes. Analyst 2018; 143:5629-5645. [DOI: 10.1039/c8an00922h] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The availability of safe water has a significant impact on all parts of society, its growth and sustainability, both politically and socioeconomically.
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Affiliation(s)
- Piumie Rajapaksha P.
- Central Queensland Innovation and Research Precinct (CQIRP)
- CQ University Australia
- North Rockhampton
- Australia
| | - Aoife Power
- Central Queensland Innovation and Research Precinct (CQIRP)
- CQ University Australia
- North Rockhampton
- Australia
| | - Shaneel Chandra
- Central Queensland Innovation and Research Precinct (CQIRP)
- CQ University Australia
- North Rockhampton
- Australia
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