1
|
Nanostructured Electrospun Polycaprolactone-Propolis Mats Composed of Different Morphologies for Potential Use in Wound Healing. Molecules 2022; 27:molecules27165351. [PMID: 36014590 PMCID: PMC9413572 DOI: 10.3390/molecules27165351] [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: 07/01/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate different types of morphologies obtained using the electrospinning process to produce a material that enables wound healing while performing a controlled release. Using benign solvents, the authors prepared and characterised electrospun polycaprolactone mats loaded with propolis, a popular extract in traditional medicine with potential for skin repair. Different morphologies were obtained from distinct storage periods of the solution before electrospinning to investigate the effect of PCL hydrolysis (average diameters of fibres and beads: 159.2-280.5 nm and 1.9-5.6 μm, respectively). Phytochemical and FTIR analyses of the extract confirmed propolis composition. GPC and viscosity analyses showed a decrease in polymer molecular weight over the storage period (about a 70% reduction over 14 days) and confirmed that it was responsible for the nanostructure diversity. Moreover, propolis acted as a lubricant agent, affecting the spun solutions' viscosity and the thermal properties and hydrophilicity of the mats. All samples were within the value range of the water vapour transpiration rate of the commercial products (1263.08 to 2179.84 g/m2·day). Even though the presence of beads did not affect the propolis release pattern, an in vitro wound-healing assay showed that propolis-loaded mats composed of beaded fibres increased the cell migration process. Thus, these films could present the potential for use in wound dressing applications.
Collapse
|
2
|
Conductive polycaprolactone/gelatin/polyaniline nanofibres as functional scaffolds for cardiac tissue regeneration. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2021.105064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
3
|
Tortorici M, Gayer C, Torchio A, Cho S, Schleifenbaum JH, Petersen A. Inner strut morphology is the key parameter in producing highly porous and mechanically stable poly(ε-caprolactone) scaffolds via selective laser sintering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111986. [PMID: 33812614 DOI: 10.1016/j.msec.2021.111986] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/30/2022]
Abstract
Selective laser sintering (SLS) is an established method to produce dimensionally accurate scaffolds for tissue engineering (TE) applications, especially in bone. In this context, the FDA-approved, biodegradable polymer poly(ε-caprolactone) (PCL) has been suggested as a suitable scaffold material. However, PCL scaffold mechanical stability - an attribute of particular importance in the field of bone TE - was not considered as a primary target for SLS process parameters optimization so far. Here, we investigated the influence of SLS process parameters on the sintered scaffolds with the aim of producing highly porous (>70% porosity) PCL scaffolds with sub-mm geometrical features for bone TE. Specifically, we studied the influence of laser power, beam compensation and laser beam diameter on the dimensional accuracy and mechanical stiffness of the produced PCL scaffolds. We found that the ratio between the diameter of the molten cross-section within scaffold struts and the outer strut diameter (including partially sintered particles) depended on the SLS process parameters. By maximizing this ratio, the mechanical stability could be optimized. The comparison with in silico predictions of scaffold mechanical stiffness revealed that the diameter of the molten cross-section within struts and not the strut diameter controlled the mechanical behaviour of the scaffold. These observations should be considered when evaluating the quality of the sintering process based on dimensional accuracy, especially for features <1 mm. Based on these findings, we suggested an approach to evaluate the sintering outcome and to define SLS process parameters that enable the production of highly porous scaffolds that are both dimensionally accurate and mechanically stable. Moreover, the cytocompatibility of PCL scaffolds was evaluated by elution tests with primary human mesenchymal stromal cells. No evidence of cytotoxicity was found in any of the investigated scaffolds, confirming the suitability of SLS as production technique of PCL scaffolds for bone TE over a wide range of SLS process parameters.
Collapse
Affiliation(s)
- Martina Tortorici
- Julius Wolff Institute, Charité - Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Christoph Gayer
- Fraunhofer Institute for Laser Technology ILT, Steinbachstr. 15, 52074, Aachen, Germany
| | - Alessandro Torchio
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, 10129, Turin, Italy; Università degli Studi di Torino, Department of Surgical Sciences, Corso Dogliotti 14, 10126, Turin, Italy
| | - Simone Cho
- Julius Wolff Institute, Charité - Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Johannes Henrich Schleifenbaum
- Fraunhofer Institute for Laser Technology ILT, Steinbachstr. 15, 52074, Aachen, Germany; RWTH Aachen University - Digital Additive Production DAP, Steinbachstrasse 15, 52074, Aachen, Germany
| | - Ansgar Petersen
- Julius Wolff Institute, Charité - Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany; Berlin Institute of Health, Center for Regenerative Therapies (BCRT) at Charité - Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
| |
Collapse
|
4
|
Giuntoli G, Muzio G, Actis C, Ganora A, Calzone S, Bruno M, Ciardelli G, Carmagnola I, Tonda-Turo C. In-vitro Characterization of a Hernia Mesh Featuring a Nanostructured Coating. Front Bioeng Biotechnol 2021; 8:589223. [PMID: 33553112 PMCID: PMC7856147 DOI: 10.3389/fbioe.2020.589223] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/16/2020] [Indexed: 11/15/2022] Open
Abstract
Abdominal hernia repair is a frequently performed surgical procedure worldwide. Currently, the use of polypropylene (PP) surgical meshes for the repair of abdominal hernias constitutes the primary surgical approach, being widely accepted as superior to primary suture repair. Surgical meshes act as a reinforcement for the weakened or damaged tissues and support tissue restoration. However, implanted meshes could suffer from poor integration with the surrounding tissues. In this context, the present study describes the preliminary evaluation of a PCL-Gel-based nanofibrous coating as an element to develop a multicomponent hernia mesh device (meshPCL-Gel) that could overcome this limitation thanks to the presence of a nanostructured biomimetic substrate for enhanced cell attachment and new tissue formation. Through the electrospinning technique, a commercial PP hernia mesh was coated with a nanofibrous membrane from a polycaprolactone (PCL) and gelatin (Gel) blend (PCL-Gel). Resulting PCL-Gel nanofibers were homogeneous and defect-free, with an average diameter of 0.15 ± 0.04 μm. The presence of Gel decreased PCL hydrophobicity, so that membranes average water contact angle dropped from 138.9 ± 1.1° (PCL) to 99.9 ± 21.6°, while it slightly influenced mechanical properties, which remained comparable to those of PCL (E = 15.7 ± 2.7 MPa, σ R = 7.7 ± 0.6 ε R = 118.8 ± 13.2%). Hydrolytic and enzymatic degradation was conducted on PCL-Gel up to 28 days, with maximum weight losses around 20 and 40%, respectively. The meshPCL-Gel device was obtained with few simple steps, with no influences on the original mechanical properties of the bare mesh, and good stability under physiological conditions. The biocompatibility of meshPCL-Gel was assessed by culturing BJ human fibroblasts on the device, up to 7 days. After 24 h, cells adhered to the nanofibrous substrate, and after 72 h their metabolic activity was about 70% with respect to control cells. The absence of detectable lactate dehydrogenase in the culture medium indicated that no necrosis induction occurred. Hence, the developed nanostructured coating provided the meshPCL-Gel device with chemical and topographical cues similar to the native extracellular matrix ones, that could be exploited for enhancing the biological response and, consequently, mesh integration, in abdominal wall hernia repair.
Collapse
Affiliation(s)
- Giulia Giuntoli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- POLITO BIOMedLAB, Politecnico di Torino, Turin, Italy
| | - Giuliana Muzio
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Chiara Actis
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | | | | | | | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- POLITO BIOMedLAB, Politecnico di Torino, Turin, Italy
- Department for Materials and Devices of the National Research Council, Institute for the Chemical and Physical Processes (CNR-IPCF UOS), Pisa, Italy
| | - Irene Carmagnola
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- POLITO BIOMedLAB, Politecnico di Torino, Turin, Italy
| | - Chiara Tonda-Turo
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- POLITO BIOMedLAB, Politecnico di Torino, Turin, Italy
| |
Collapse
|
5
|
Liu C, Xiao L, Zhang Y, Zhao Q, Xu H. Regeneration of annulus fibrosus tissue using a DAFM/PECUU-blended electrospun scaffold. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:2347-2361. [PMID: 32885742 DOI: 10.1080/09205063.2020.1812038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Low back pain and disc degeneration affect quality of life and imposes an enormous financial burden. Although annulus fibrosus (AF) tissue engineering provides an alternative therapeutic possibility in the treatment of degenerative intervertebral disc disease, it is restricted by the biochemical properties, organizational structure, and mechanical characteristics of the scaffold. The ideal scaffold should closely mimic the natural extracellular matrix (ECM) in structure and function for long-term stability and survival. Poly(ether carbonate urethane) urea (PECUU) can be electrospun into nanofibrous scaffolds to mimic ECM architecture with the appropriate mechanical properties. However, PECUU scaffolds lack the bioactivity of natural ECM. On the other hand, a decellularized annulus fibrosus matrix (DAFM) has good biocompatibility and biodegradability and has been shown to promote secretion of AF-related ECM. Herein, DAFM/PECUU-blended electrospun scaffolds were fabricated with the help of coaxial electrospinning technology for the first time. AF-derived stem cells were cultured on DAFM/PECUU electrospun scaffolds, and cellular metabolic activity, morphology, and gene expression assays as well as AF-related ECM synthesis were performed. The results showed that AF-derived stem cells proliferated well on the scaffolds. Gene expression and ECM secretion of collagen type I and II and aggrecan from AF-derived stem cells cultured on DAFM/PECUU electrospun scaffolds were higher than from those on PECUU fibrous scaffolds. Thus, DAFM/PECUU electrospun scaffolds are a potential candidate for AF tissue engineering applications.
Collapse
Affiliation(s)
- Chen Liu
- Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Spine Research Center of Wannan Medical College, Wuhu, Anhui, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wuhu, Anhui, China.,Department of Spine Surgery, Yijishan hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Liang Xiao
- Spine Research Center of Wannan Medical College, Wuhu, Anhui, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wuhu, Anhui, China.,Department of Spine Surgery, Yijishan hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Yu Zhang
- Spine Research Center of Wannan Medical College, Wuhu, Anhui, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wuhu, Anhui, China
| | - Quanlai Zhao
- Spine Research Center of Wannan Medical College, Wuhu, Anhui, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wuhu, Anhui, China
| | - Hongguang Xu
- Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Spine Research Center of Wannan Medical College, Wuhu, Anhui, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wuhu, Anhui, China.,Department of Spine Surgery, Yijishan hospital of Wannan Medical College, Wuhu, Anhui, China
| |
Collapse
|
6
|
Toledo ALMM, Ramalho BS, Picciani PHS, Baptista L, Martinez AMB, Dias ML. Effect of three different amines on the surface properties of electrospun polycaprolactone mats. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1785463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A. L. M. M. Toledo
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- Laboratório de Neurodegeneração e Reparo. R. Prof. Rodolpho Paulo Rocco, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - B. S. Ramalho
- Laboratório de Neurodegeneração e Reparo. R. Prof. Rodolpho Paulo Rocco, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - P. H. S. Picciani
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - L.S. Baptista
- Núcleo Multidisciplinar de Pesquisa em Xerém, Universidade Federal do Rio de Janeiro (UFRJ), Duque de Caxias, Brazil
- Laboratory of Tissue Bioengineering, Directory of Metrology Applied to Life Sciences, National Institute of Metrology, Quality and Technology (INMETRO), Duque de Caxias, Brazil
| | - A. M. B. Martinez
- Laboratório de Neurodegeneração e Reparo. R. Prof. Rodolpho Paulo Rocco, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - M. L. Dias
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| |
Collapse
|
7
|
Saat MN, Mohamad Annuar MS. One-pot lipase-catalyzed esterification of ε-caprolactone with methyl-d-glucopyranoside and its elongation with free 6-hydroxyhexanoate monomer units. Biotechnol Appl Biochem 2019; 67:354-365. [PMID: 31746015 DOI: 10.1002/bab.1859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 11/15/2019] [Indexed: 02/05/2023]
Abstract
One-pot synthesis of sugar-functionalized oligomeric caprolactone was carried out by lipase-catalyzed esterification of ε-caprolactone (ECL) with methyl-d-glucopyranoside (MGP) followed by the elongation of functionalized oligomer chain. Functionalization was performed in a custom-fabricated glass reactor equipped with Rushton turbine impeller and controlled temperature at 60 °C using tert-butanol as reaction medium. The overall reaction steps include MGP esterification of ECL monomer and its subsequent elongation by free 6-hydroxyhexanoate monomer units. A ping-pong bi-bi mechanism without ternary complex was proposed for esterification of ECL and MGP with apparent values of kinetic constant, namely maximal velocity (Vmax ), Michaelis constant for MGP (KmMGP ), and Michaelis constant for ECL (KmECL ) at 3.848 × 10-3 M H-1 , 8.189 × 10-2 M, and 6.050 M, respectively. Chain propagation step of MGP-functionalized ECL oligomer exhibits the properties of living polymerization mechanism. Linear relationship between conversion (%) and number average molecular weight, Mn (g mol-1 ), of functionalized oligomer was observed. Synthesized functionalized oligomer showed narrow range of molecular weight from 1,400 to 1,600 g mol-1 with more than 90% conversion achieved. Structural analysis confirmed the presence of covalent bond between the hydroxyl group in MGP with carboxyl end group of ECL oligomer.
Collapse
Affiliation(s)
- Muhammad Naziz Saat
- Biotechnology Division, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohamad Suffian Mohamad Annuar
- Biotechnology Division, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
8
|
Polycaprolactone/gelatin-based scaffolds with tailored performance: in vitro and in vivo validation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110296. [PMID: 31761169 DOI: 10.1016/j.msec.2019.110296] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/16/2019] [Accepted: 10/07/2019] [Indexed: 12/16/2022]
Abstract
Nanofibrous scaffolds composed of polycaprolactone (PCL) and gelatin (Ge) were obtained through a hydrolytic assisted electrospinning process. The PCL-to-Ge proportion (100/0 to 20/80), as well as the dissolution time (24, 48, 72, 96, 120 h) into a 1:1 formic/acetic acid solvent before electrospinning were modified to obtain the different samples. A strong influence of these factors on the physicochemical properties of the scaffolds was observed. Higher Ge percentage reduced crystallinity, allowed a uniform morphology and increased water contact angle. The increase in the dissolution time considerably reduced the molar mass and, subsequently, fibre diameter and crystallinity were affected. During in vitro biocompatibility tests, higher cell adhesion and proliferation were found for the 60/40, 50/50 and 40/60 PCL/Ge compositions that was corroborated by MTT assay, fluorescence and microscopy. A weakened structure, more labile to the in vitro degradation in physiologic conditions was found for these compositions with higher dissolution times (72 and 96 h). Particularly, the 40/60 PCL/Ge scaffolds revealed an interesting progressive degradation behaviour as a function of the dissolution time. Moreover, these scaffolds were non-inflammatory, as revealed by the pyrogen test and after the 15-day subcutaneous in vivo implantation in mice. Finally, a reduction of the scar tissue area after infarction was found for the 40/60 PCL/Ge scaffolds electrospun after 72 h implanted in rat hearts. These results are especially interesting and represent a feasible way to avoid undesired inflammatory reactions during the scaffold assimilation.
Collapse
|
9
|
Gil-Castell O, Badia JD, Bou J, Ribes-Greus A. Performance of Polyester-Based Electrospun Scaffolds under In Vitro Hydrolytic Conditions: From Short-Term to Long-Term Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E786. [PMID: 31121950 PMCID: PMC6566282 DOI: 10.3390/nano9050786] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/15/2019] [Accepted: 05/20/2019] [Indexed: 12/15/2022]
Abstract
The evaluation of the performance of polyesters under in vitro physiologic conditions is essential to design scaffolds with an adequate lifespan for a given application. In this line, the degradation-durability patterns of poly(lactide-co-glycolide) (PLGA), polydioxanone (PDO), polycaprolactone (PCL) and polyhydroxybutyrate (PHB) scaffolds were monitored and compared giving, as a result, a basis for the specific design of scaffolds from short-term to long-term applications. For this purpose, they were immersed in ultra-pure water and phosphate buffer solution (PBS) at 37 °C. The scaffolds for short-time applications were PLGA and PDO, in which the molar mass diminished down to 20% in a 20-30 days lifespan. While PDO developed crystallinity that prevented the geometry of the fibres, those of PLGA coalesced and collapsed. The scaffolds for long-term applications were PCL and PHB, in which the molar mass followed a progressive decrease, reaching values of 10% for PCL and almost 50% for PHB after 650 days of immersion. This resistant pattern was mainly ascribed to the stability of the crystalline domains of the fibres, in which the diameters remained almost unaffected. From the perspective of an adequate balance between the durability and degradation, this study may serve technologists as a reference point to design polyester-based scaffolds for biomedical applications.
Collapse
Affiliation(s)
- Oscar Gil-Castell
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
- Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - José David Badia
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
- Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - Jordi Bou
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Av. Diagonal 647 (ETSEIB), 08028 Barcelona, Spain.
| | - Amparo Ribes-Greus
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| |
Collapse
|
10
|
Pappalardo D, Mathisen T, Finne-Wistrand A. Biocompatibility of Resorbable Polymers: A Historical Perspective and Framework for the Future. Biomacromolecules 2019; 20:1465-1477. [PMID: 30855137 DOI: 10.1021/acs.biomac.9b00159] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The history of resorbable polymers containing glycolide, lactide, ε-caprolactone and trimethylene carbonate, with a special emphasis being placed on the time frame of the 1960s-1990s is described. Reviewing the history is valuable when looking into the future perspectives regarding how and where these monomers should be used. This story includes scientific evaluations indicating that these polymers are safe to use in medical devices, while the design of the medical device is not considered in this report. In particular, we present the data regarding the tissue response to implanted polymers, as well as the toxicity and pharmacokinetics of their degradation products. In the translation of these polymers from "the bench to the bedside," various challenges have been faced by surgeons, medical doctors, biologists, material engineers and polymer chemists. This Perspective highlights the visionary role played by the pioneers, addressing the problems that occurred on a case by case basis in translational medicine.
Collapse
Affiliation(s)
- Daniela Pappalardo
- Department of Science and Technology , University of Sannio , via dei Mulini , 82100 Benevento , Italy
| | | | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology , KTH Royal Institute of Technology , 114 28 Stockholm , Sweden
| |
Collapse
|
11
|
Gil-Castell O, Galindo-Alfaro D, Sánchez-Ballester S, Teruel-Juanes R, Badia JD, Ribes-Greus A. Crosslinked Sulfonated Poly(vinyl alcohol)/Graphene Oxide Electrospun Nanofibers as Polyelectrolytes. NANOMATERIALS 2019; 9:nano9030397. [PMID: 30857239 PMCID: PMC6474007 DOI: 10.3390/nano9030397] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 11/25/2022]
Abstract
Taking advantage of the high functionalization capacity of poly(vinyl alcohol) (PVA), bead-free homogeneous nanofibrous mats were produced. The addition of functional groups by means of grafting strategies such as the sulfonation and the addition of nanoparticles such as graphene oxide (GO) were considered to bring new features to PVA. Two series of sulfonated and nonsulfonated composite nanofibers, with different compositions of GO, were prepared by electrospinning. The use of sulfosuccinic acid (SSA) allowed crosslinked and functionalized mats with controlled size and morphology to be obtained. The functionalization of the main chain of the PVA and the determination of the optimum composition of GO were analyzed in terms of the nanofibrous morphology, the chemical structure, the thermal properties, and conductivity. The crosslinking and the sulfonation treatment decreased the average fiber diameter of the nanofibers, which were electrical insulators regardless of the composition. The addition of small amounts of GO contributed to the retention of humidity, which significantly increased the proton conductivity. Although the single sulfonation of the polymer matrix produced a decrease in the proton conductivity, the combination of the sulfonation, the crosslinking, and the addition of GO enhanced the proton conductivity. The proposed nanofibers can be considered as good candidates for being exploited as valuable components for ionic polyelectrolyte membranes.
Collapse
Affiliation(s)
- Oscar Gil-Castell
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain.
- Department of Chemical Engineering, School of Engineering, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - Diana Galindo-Alfaro
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain.
| | - Soraya Sánchez-Ballester
- Packaging, Transport, & Logistics Research Institute (ITENE), C/Albert Einstein, 1, Parque Tecnológico, 46980 Paterna, Spain.
| | - Roberto Teruel-Juanes
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain.
| | - José David Badia
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain.
- Department of Chemical Engineering, School of Engineering, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - Amparo Ribes-Greus
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain.
| |
Collapse
|
12
|
Gil-Castell O, Badia J, Ingles-Mascaros S, Teruel-Juanes R, Serra A, Ribes-Greus A. Polylactide-based self-reinforced composites biodegradation: Individual and combined influence of temperature, water and compost. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
13
|
Zupančič Š, Preem L, Kristl J, Putrinš M, Tenson T, Kocbek P, Kogermann K. Impact of PCL nanofiber mat structural properties on hydrophilic drug release and antibacterial activity on periodontal pathogens. Eur J Pharm Sci 2018; 122:347-358. [PMID: 30017845 DOI: 10.1016/j.ejps.2018.07.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/19/2022]
Abstract
Electrospinning enables to design and manufacture novel drug delivery systems capable of advancing the local antibacterial therapy. In this study, two hydrophilic drugs - metronidazole and ciprofloxacin hydrochloride - were loaded both individually and in combination into hydrophobic poly(ε-caprolactone) (PCL) matrix using electrospinning. We aimed to develop prolonged release drug delivery systems suitable for the treatment of periodontal diseases and understand how different rarely studied structural features, such as nanofiber mat thickness, surface area, wettability, together with intrinsic properties, like solid state and localization of incorporated drugs in nanofibers, affect the drug release. Furthermore, the safety of nanofiber mats was assessed in vitro on fibroblasts, and their antibacterial activity was tested on selected strains of periodontopathogenic bacteria. The results showed that the structural properties of nanofiber mat are crucial in particular drug-polymer combinations, affecting the drug release and consequently the antibacterial activity. The hydrophobicity of a PCL nanofiber mat and its thickness are the key characteristics in prolonged hydrophilic drug release, but only when wetting is the rate-limiting step for the drug release. Combination of drugs showed beneficial effects by inhibiting the growth of all tested pathogenic bacterial strains important in periodontal diseases.
Collapse
Affiliation(s)
- Špela Zupančič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta. 7, 1000 Ljubljana, Slovenia.
| | - Liis Preem
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| | - Julijana Kristl
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta. 7, 1000 Ljubljana, Slovenia.
| | - Marta Putrinš
- Institute of Technology, Faculty of Science and Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| | - Tanel Tenson
- Institute of Technology, Faculty of Science and Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| | - Petra Kocbek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta. 7, 1000 Ljubljana, Slovenia.
| | - Karin Kogermann
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| |
Collapse
|
14
|
Gil-Castell O, Badia J, Ribes-Greus A. Tailored electrospun nanofibrous polycaprolactone/gelatin scaffolds into an acid hydrolytic solvent system. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
15
|
Li W, Hu Y, Shi L, Zhang X, Xiong L, Zhang W, Ullah I. Electrospinning of Polycaprolactone/Pluronic F127 dissolved in glacial acetic acid: fibrous scaffolds fabrication, characterization and in vitro evaluation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:1155-1167. [PMID: 29455624 DOI: 10.1080/09205063.2018.1439431] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstracts The Polycaprolactone (PCL) fibrous scaffolds in nano to micro scale have been considered as excellent templates for cell culture and tissue growth. The hydrophobic nature of the PCL, however, yields low initial cell seeding density, heterogeneous cell spreading and slow cell growth rate. Therefore, in this study the surface hydrophilic fibrous scaffolds were directly fabricated by the electrospinning of PCL solutions with small quantities (0.5-5%) of Pluronic F127 (PEO100-PPO65-PEO100) dissolved in benign solvent of glacial acetic acid. The clear and miscible solutions were achieved by controlling the proper F127 content in the blend solutions. The continuous and smooth fibers with average diameters from 0.71 to 1.43 μm made up the fibrous scaffolds in non-woven mode. Then the water wetting angle of the scaffolds could be adjusted from 126° to 0° by varying F127 content owing to its hydrophilic PEO chains presented on surface the blended fibers. Finally, it was demonstrated that the blended fibrous scaffolds with the F127 content less than 1% exhibited better cell attachment, proliferation and spreading performance than those of pure PCL scaffolds.
Collapse
Affiliation(s)
- Wenchao Li
- a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Yiqiang Hu
- b Department of Orthopaedics , Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Lei Shi
- a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Xianglin Zhang
- a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Liming Xiong
- b Department of Orthopaedics , Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Wancheng Zhang
- a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Ismat Ullah
- a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology , Wuhan , P. R. China
| |
Collapse
|
16
|
Santonja-Blasco L, Rodriguez I, Sanchez-Ballester S, Badia JD, Meseguer F, Ribes-Greus A. Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation. J Appl Polym Sci 2017. [DOI: 10.1002/app.45439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L. Santonja-Blasco
- Instituto de Tecnología de los Materiales, Universitat Politècnica de València; Camí de Vera s/n 46022 València Spain
| | - I. Rodriguez
- Instituto de Tecnología Química, Centro Mixto Consejo Superior de Investigaciones Científicas/Universitat Politècnica de València; Avenida de Los Naranjos s/n 46022 València Spain
| | - S. Sanchez-Ballester
- Instituto de Tecnología de los Materiales, Universitat Politècnica de València; Camí de Vera s/n 46022 València Spain
| | - J. D. Badia
- Instituto de Tecnología de los Materiales, Universitat Politècnica de València; Camí de Vera s/n 46022 València Spain
- Departament d’Enginyeria Química, Escola Tècnica Superior d’Enginyeria; Universitat de València; Avenida de la Universitat s/n 46100 Burjassot Spain
| | - F. Meseguer
- Instituto de Tecnología Química, Centro Mixto Consejo Superior de Investigaciones Científicas/Universitat Politècnica de València; Avenida de Los Naranjos s/n 46022 València Spain
| | - A. Ribes-Greus
- Instituto de Tecnología de los Materiales, Universitat Politècnica de València; Camí de Vera s/n 46022 València Spain
| |
Collapse
|
17
|
Li W, Shi L, Zhang X, Liu K, Ullah I, Cheng P. Electrospinning of polycaprolactone nanofibers using H2
O as benign additive in polycaprolactone/glacial acetic acid solution. J Appl Polym Sci 2017. [DOI: 10.1002/app.45578] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Wenchao Li
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Lei Shi
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Xianglin Zhang
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Kang Liu
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Ismat Ullah
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| | - Penghua Cheng
- State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering; Huazhong University of Science and Technology; Wuhan 430074 People's Republic of China
| |
Collapse
|
18
|
Badia J, Strömberg E, Kittikorn T, Ek M, Karlsson S, Ribes-Greus A. Relevant factors for the eco-design of polylactide/sisal biocomposites to control biodegradation in soil in an end-of-life scenario. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.06.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
19
|
Badia J, Gil-Castell O, Ribes-Greus A. Long-term properties and end-of-life of polymers from renewable resources. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.01.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|