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Gaydhane MK, Sharma CS, Majumdar S. Electrospun nanofibres in drug delivery: advances in controlled release strategies. RSC Adv 2023; 13:7312-7328. [PMID: 36891485 PMCID: PMC9987416 DOI: 10.1039/d2ra06023j] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 12/14/2022] [Indexed: 03/08/2023] Open
Abstract
Emerging drug-delivery systems demand a controlled or programmable or sustained release of drug molecules to improve therapeutic efficacy and patient compliance. Such systems have been heavily investigated as they offer safe, accurate, and quality treatment for numerous diseases. Amongst newly developed drug-delivery systems, electrospun nanofibres have emerged as promising drug excipients and are coming up as promising biomaterials. The inimitable characteristics of electrospun nanofibres in terms of their high surface-to-volume ratio, high porosity, easy drug encapsulation, and programmable release make them an astounding drug-delivery vehicle.
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Affiliation(s)
- Mrunalini K Gaydhane
- Creative & Advanced Research Based on Nanomaterials (CARBON) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi-502285 Telangana India
| | - Chandra Shekhar Sharma
- Creative & Advanced Research Based on Nanomaterials (CARBON) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi-502285 Telangana India
| | - Saptarshi Majumdar
- Poly-Nano-Bio Laboratory, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi-502285 Telangana India
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Wang Y, Yu DG, Liu Y, Liu YN. Progress of Electrospun Nanofibrous Carriers for Modifications to Drug Release Profiles. J Funct Biomater 2022; 13:jfb13040289. [PMID: 36547549 PMCID: PMC9787859 DOI: 10.3390/jfb13040289] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/15/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
Electrospinning is an advanced technology for the preparation of drug-carrying nanofibers that has demonstrated great advantages in the biomedical field. Electrospun nanofiber membranes are widely used in the field of drug administration due to their advantages such as their large specific surface area and similarity to the extracellular matrix. Different electrospinning technologies can be used to prepare nanofibers of different structures, such as those with a monolithic structure, a core-shell structure, a Janus structure, or a porous structure. It is also possible to prepare nanofibers with different controlled-release functions, such as sustained release, delayed release, biphasic release, and targeted release. This paper elaborates on the preparation of drug-loaded nanofibers using various electrospinning technologies and concludes the mechanisms behind the controlled release of drugs.
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Affiliation(s)
- Ying Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, China
- Correspondence: (D.-G.Y.); (Y.-N.L.)
| | - Yang Liu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Long Teng Road, Shanghai 201620, China
| | - Ya-Nan Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
- Correspondence: (D.-G.Y.); (Y.-N.L.)
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Michurov DA, Makhina TK, Siracusa V, Bonartsev AP, Lozinsky VI, Iordanskii AL. Cryo-Structuring of Polymeric Systems. Poly(Vinyl Alcohol)-Based Cryogels Loaded with the Poly(3-hydroxybutyrate) Microbeads and the Evaluation of Such Composites as the Delivery Vehicles for Simvastatin. Polymers (Basel) 2022; 14:2196. [PMID: 35683869 PMCID: PMC9182817 DOI: 10.3390/polym14112196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 02/06/2023] Open
Abstract
Highly porous composite poly(vinyl alcohol) (PVA) cryogels loaded with the poly(3-hydroxybutyrate) (PHB) microbeads containing the drug, simvastatin (SVN), were prepared via cryogenic processing (freezing-storing frozen-defrosting) of the beads' suspensions in aqueous PVA solution. The rigidity of the resultant composite cryogels increased with increasing the filler content. Optical microscopy of the thin section of such gel matrices revealed macro-porous morphology of both continuous (PVA cryogels) and discrete (PHB-microbeads) phases. Kinetic studies of the SVN release from the drug-loaded microbeads, the non-filled PVA cryogel and the composite material showed that the cryogel-based composite system could potentially serve as a candidate for the long-term therapeutic system for controlled drug delivery. Such PHB-microbeads-containing PVA-cryogel-based composite drug delivery carriers were unknown earlier; their preparation and studies have been performed for the first time.
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Affiliation(s)
- Dmitrii A. Michurov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia;
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Tatiana K. Makhina
- Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bld. 2 Leninskiy Ave., 119071 Moscow, Russia;
| | - Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Anton P. Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Vladimir I. Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia;
| | - Alexey L. Iordanskii
- N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Kosygin Street, 4, 119991 Moscow, Russia;
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Pulingam T, Appaturi JN, Parumasivam T, Ahmad A, Sudesh K. Biomedical Applications of Polyhydroxyalkanoate in Tissue Engineering. Polymers (Basel) 2022; 14:2141. [PMID: 35683815 PMCID: PMC9182786 DOI: 10.3390/polym14112141] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering technology aids in the regeneration of new tissue to replace damaged or wounded tissue. Three-dimensional biodegradable and porous scaffolds are often utilized in this area to mimic the structure and function of the extracellular matrix. Scaffold material and design are significant areas of biomaterial research and the most favorable material for seeding of in vitro and in vivo cells. Polyhydroxyalkanoates (PHAs) are biopolyesters (thermoplastic) that are appropriate for this application due to their biodegradability, thermo-processability, enhanced biocompatibility, mechanical properties, non-toxicity, and environmental origin. Additionally, they offer enormous potential for modification through biological, chemical and physical alteration, including blending with various other materials. PHAs are produced by bacterial fermentation under nutrient-limiting circumstances and have been reported to offer new perspectives for devices in biological applications. The present review discusses PHAs in the applications of conventional medical devices, especially for soft tissue (sutures, wound dressings, cardiac patches and blood vessels) and hard tissue (bone and cartilage scaffolds) regeneration applications. The paper also addresses a recent advance highlighting the usage of PHAs in implantable devices, such as heart valves, stents, nerve guidance conduits and nanoparticles, including drug delivery. This review summarizes the in vivo and in vitro biodegradability of PHAs and conducts an overview of current scientific research and achievements in the development of PHAs in the biomedical sector. In the future, PHAs may replace synthetic plastics as the material of choice for medical researchers and practitioners.
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Affiliation(s)
- Thiruchelvi Pulingam
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (T.P.); (A.A.)
| | | | | | - Azura Ahmad
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (T.P.); (A.A.)
| | - Kumar Sudesh
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (T.P.); (A.A.)
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Capuana E, Lopresti F, Ceraulo M, La Carrubba V. Poly-l-Lactic Acid (PLLA)-Based Biomaterials for Regenerative Medicine: A Review on Processing and Applications. Polymers (Basel) 2022; 14:1153. [PMID: 35335484 PMCID: PMC8955974 DOI: 10.3390/polym14061153] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/02/2022] [Accepted: 03/09/2022] [Indexed: 02/06/2023] Open
Abstract
Synthetic biopolymers are effective cues to replace damaged tissue in the tissue engineering (TE) field, both for in vitro and in vivo application. Among them, poly-l-lactic acid (PLLA) has been highlighted as a biomaterial with tunable mechanical properties and biodegradability that allows for the fabrication of porous scaffolds with different micro/nanostructures via various approaches. In this review, we discuss the structure of PLLA, its main properties, and the most recent advances in overcoming its hydrophobic, synthetic nature, which limits biological signaling and protein absorption. With this aim, PLLA-based scaffolds can be exposed to surface modification or combined with other biomaterials, such as natural or synthetic polymers and bioceramics. Further, various fabrication technologies, such as phase separation, electrospinning, and 3D printing, of PLLA-based scaffolds are scrutinized along with the in vitro and in vivo applications employed in various tissue repair strategies. Overall, this review focuses on the properties and applications of PLLA in the TE field, finally affording an insight into future directions and challenges to address an effective improvement of scaffold properties.
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Affiliation(s)
- Elisa Capuana
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Francesco Lopresti
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Manuela Ceraulo
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Vincenzo La Carrubba
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
- ATeN Center, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
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Raza ZA, Khalil S, Majeed MI, Sarwar T. Aminolysis of poly(hydroxybutyrate)-based multicomponent films for the impregnation of bovine serum albumin. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04165-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pardo-Figuerez M, Teno J, Lafraya A, Prieto C, Lagaron JM. Development of an Electrospun Patch Platform Technology for the Delivery of Carvedilol in the Oral Mucosa. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:438. [PMID: 35159783 PMCID: PMC8840269 DOI: 10.3390/nano12030438] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 02/04/2023]
Abstract
The work herein presented aims to develop and characterize carvedilol (CVD) releasable non-water-soluble monolayers and a multilayer patch made of ultrathin micron and submicron fibers for drug delivery into the sublingual mucosa. Firstly, the developed formulations containing CVD within different biopolymers (PDLA, PCL, and PHB) were characterized by scanning electron microscopy (SEM), attenuated total reflectance Fourier transformed infrared spectroscopy (ATR-FTIR), differential scanning calorimetry (DSC), wide-angle X-ray scattering (WAXS), and for their in vitro drug release. SEM micrographs assessed the fiber morphology attained by adding carvedilol. ATR-FTIR spectra revealed good chemical compatibility between CVD and the tested biopolymers, whereas DSC and WAXS confirmed that CVD was in an amorphous state within the biopolymeric fibers. In vitro release studies showed enhanced CVD release kinetics from the electrospun biopolymer monolayers compared to the dissolution rate of the commercial form of the pure drug, except for the slow-releasing PDLA fibers. Finally, the selected CVD-loaded layer, i.e., electrospun PHB, was built into a three-layer patch to tackle mucosa adhesion and unidirectional release, while retaining the enhanced release kinetics. The patch design proposed here further demonstrates the potential of the electro-hydrodynamic processing technology to render unique mucoadhesive controlled delivery platforms for poorly water-soluble drugs.
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Affiliation(s)
- Maria Pardo-Figuerez
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, Paterna, 46980 Valencia, Spain; (M.P.-F.); (C.P.)
- R&D Department, Bioinicia S.L., Calle Algepser 65 nave 3, Paterna, 46980 Valencia, Spain; (J.T.); (A.L.)
| | - Jorge Teno
- R&D Department, Bioinicia S.L., Calle Algepser 65 nave 3, Paterna, 46980 Valencia, Spain; (J.T.); (A.L.)
| | - Alvaro Lafraya
- R&D Department, Bioinicia S.L., Calle Algepser 65 nave 3, Paterna, 46980 Valencia, Spain; (J.T.); (A.L.)
| | - Cristina Prieto
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, Paterna, 46980 Valencia, Spain; (M.P.-F.); (C.P.)
| | - Jose Maria Lagaron
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, Paterna, 46980 Valencia, Spain; (M.P.-F.); (C.P.)
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Initial Clinical Experience with the Biodegradable Absnow TM Device for Percutaneous Closure of Atrial Septal Defect: A 3-Year Follow-Up. J Interv Cardiol 2021; 2021:6369493. [PMID: 34393667 PMCID: PMC8349294 DOI: 10.1155/2021/6369493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/30/2021] [Accepted: 07/22/2021] [Indexed: 11/18/2022] Open
Abstract
Objective We reported the 3-year follow-up results of initial clinical experience with the AbsnowTM device, a novel biodegradable occluder for percutaneous closure of atrial septal defect (ASD). Background The AbsnowTM device is a total biodegradable septal occluder with double-disc poly-L-lactic acid (PLLA) framework and PLLA membranes intergraded into the device to ensure its biodegradability, clinical safety, and efficacy. Methods Five pediatric patients were enrolled from May to June 2018 in our institution and were followed up for 3 years. A clinical evaluation and transthoracic echocardiography were performed at 24 hr, 1 month, 3 months, 6 months, 12 months, and yearly after implantation. Primary endpoints were a composite clinical success, comprising of clinical closure success and safety at the 36-month follow-up evaluation. Secondary endpoints included technical success, procedure success, closure success, and safety at each of the follow-up visits. Results The median subject age was 3.6 years (range 3.1-6.5 years). The mean ASD diameter was (13.7 ± 2.9) mm. The median device size was 20 mm (range 14 to 24 mm). Technical and procedure success was achieved in 100% (5/5) of the patients. At 2-year follow-up, 3 of the 5 patients developed new-onset residual shunts and 2 of them reached a moderate degree. At 3-year follow-up, the residual shunt size increased over time in all the 3 patients, and 1 of them had right ventricular enlargement. All of the 5 patients were free from serious adverse events during the 3-year follow-up, with no device embolization, thromboembolization, or reintervention to the target defect. Conclusion This 3-year follow-up result of initial experience with the biodegradable AbsnowTM device has demonstrated acceptable safety with no procedural complications. Notably, the high rate of residual shunt significantly affected its efficacy. The long-term safety and efficacy of the device should be further evaluated in a large cohort of patients in future studies.
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Arampatzis AS, Giannakoula K, Kontogiannopoulos KN, Theodoridis K, Aggelidou E, Rat A, Kampasakali E, Willems A, Christofilos D, Kritis A, Papageorgiou VP, Tsivintzelis I, Assimopoulou AN. Novel electrospun poly-hydroxybutyrate scaffolds as carriers for the wound healing agents alkannins and shikonins. Regen Biomater 2021; 8:rbab011. [PMID: 34211727 PMCID: PMC8240617 DOI: 10.1093/rb/rbab011] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/04/2021] [Accepted: 02/04/2021] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to investigate the potential of novel electrospun fiber mats loaded with alkannin and shikonin (A/S) derivatives, using as carrier a highly biocompatible, bio-derived, eco-friendly polymer such as poly[(R)-3-hydroxybutyric acid] (PHB). PHB fibers containing a mixture of A/S derivatives at different ratios were successfully fabricated via electrospinning. Αs evidenced by scanning electron microscopy, the fibers formed a bead-free mesh with average diameters from 1.25 to 1.47 μm. Spectroscopic measurements suggest that electrospinning marginally increases the amorphous content of the predominantly crystalline PHB in the fibers, while a significant drug amount lies near the fiber surface for samples of high total A/S content. All scaffolds displayed satisfactory characteristics, with the lower concentrations of A/S mixture-loaded PHB fiber mats achieving higher porosity, water uptake ratios, and entrapment efficiencies. The in vitro dissolution studies revealed that all samples released more than 70% of the encapsulated drug after 72 h. All PHB scaffolds tested by cell viability assay were proven non-toxic for Hs27 fibroblasts, with the 0.15 wt.% sample favoring cell attachment, spreading onto the scaffold surface, as well as cell proliferation. Finally, the antimicrobial activity of PHB meshes loaded with A/S mixture was documented for Staphylococcus epidermidis and S. aureus.
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Affiliation(s)
- Athanasios S Arampatzis
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), Thessaloniki 57001, Greece
| | - Konstantina Giannakoula
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), Thessaloniki 54124, Greece
| | - Konstantinos N Kontogiannopoulos
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), Thessaloniki 57001, Greece
| | - Konstantinos Theodoridis
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTh), Thessaloniki, Greece
| | - Eleni Aggelidou
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTh), Thessaloniki, Greece
| | - Angélique Rat
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, Ghent 9000, Belgium
| | - Elli Kampasakali
- Faculty of Engineering, School of Chemical Engineering and Physics Laboratory, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anne Willems
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, Ghent 9000, Belgium
| | - Dimitrios Christofilos
- Faculty of Engineering, School of Chemical Engineering and Physics Laboratory, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Aristeidis Kritis
- Department of Physiology and Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTh), Thessaloniki, Greece
| | - Vassilios P Papageorgiou
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), Thessaloniki 57001, Greece
| | - Ioannis Tsivintzelis
- Physical Chemistry Laboratory, School of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Andreana N Assimopoulou
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), Thessaloniki 54124, Greece
- Natural Products Research Centre of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), Thessaloniki 57001, Greece
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Ansari S, Sami N, Yasin D, Ahmad N, Fatma T. Biomedical applications of environmental friendly poly-hydroxyalkanoates. Int J Biol Macromol 2021; 183:549-563. [PMID: 33932421 DOI: 10.1016/j.ijbiomac.2021.04.171] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023]
Abstract
Biological polyesters of hydroxyacids are known as polyhydroxyalkanoates (PHA). They have proved to be an alternative, environmentally friendly and attractive candidate for the replacement of petroleum-based plastics in many applications. Many bacteria synthesize these compounds as an intracellular carbon and energy compound usually under unbalanced growth conditions. Biodegradability and biocompatibility of different PHA has been studied in cell culture systems or in an animal host during the last few decades. Such investigations have proposed that PHA can be used as biomaterials for applications in conventional medical devices such as sutures, patches, meshes, implants, and tissue engineering scaffolds as well. Moreover, findings related to encapsulation capability and degradation kinetics of some PHA polymers has paved their way for development of controlled drug delivery systems. The present review discusses about bio-plastics, their characteristics, examines the key findings and recent advances highlighting the usage of bio-plastics in different medical devices. The patents concerning to PHA application in biomedical field have been also enlisted that will provide a brief overview of the status of research in bio-plastic. This would help medical researchers and practitioners to replace the synthetic plastics aids that are currently being used. Simultaneously, it could also prove to be a strong step in reducing the plastic pollution that surged abruptly due to the COVID-19 medical waste.
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Affiliation(s)
- Sabbir Ansari
- Cyanobacterial Biotechnology Laboratory, Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Neha Sami
- Cyanobacterial Biotechnology Laboratory, Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Durdana Yasin
- Cyanobacterial Biotechnology Laboratory, Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Nazia Ahmad
- Cyanobacterial Biotechnology Laboratory, Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Tasneem Fatma
- Cyanobacterial Biotechnology Laboratory, Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi 110025, India.
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Olkhov AA, Tyubaeva PM, Vetcher AA, Karpova SG, Kurnosov AS, Rogovina SZ, Iordanskii AL, Berlin AA. Aggressive Impacts Affecting the Biodegradable Ultrathin Fibers Based on Poly(3-Hydroxybutyrate), Polylactide and Their Blends: Water Sorption, Hydrolysis and Ozonolysis. Polymers (Basel) 2021; 13:polym13060941. [PMID: 33803794 PMCID: PMC8003206 DOI: 10.3390/polym13060941] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 12/19/2022] Open
Abstract
Ultrathin electrospun fibers of pristine biopolyesters, poly(3-hydroxybutyrate) (PHB) and polylactic acid (PLA), as well as their blends, have been obtained and then explored after exposure to hydrolytic (phosphate buffer) and oxidative (ozone) media. All the fibers were obtained from a co-solvent, chloroform, by solution-mode electrospinning. The structure, morphology, and segmental dynamic behavior of the fibers have been determined by optical microscopy, SEM, ESR, and others. The isotherms of water absorption have been obtained and the deviation from linearity (the Henry low) was analyzed by the simplified model. For PHB-PLA fibers, the loss weight increments as the reaction on hydrolysis are symbate to water absorption capacity. It was shown that the ozonolysis of blend fibrils has a two-stage character which is typical for O3 consumption, namely, the pendant group's oxidation and the autodegradation of polymer molecules with chain rupturing. The first stage of ozonolysis has a quasi-zero-order reaction. A subsequent second reaction stage comprising the back-bone destruction has a reaction order that differs from the zero order. The fibrous blend PLA/PHB ratio affects the rate of hydrolysis and ozonolysis so that the fibers with prevalent content of PLA display poor resistance to degradation in aqueous and gaseous media.
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Affiliation(s)
- Anatoly A. Olkhov
- Department of Chemistry and Physics, Plekhanov Russian University of Economics, Stremyanny Ln 36, 117997 Moscow, Russia; (A.A.O.); (P.M.T.)
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia; (S.G.K.); (A.S.K.)
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia; (S.Z.R.); (A.L.I.); (A.A.B.)
| | - Polina M. Tyubaeva
- Department of Chemistry and Physics, Plekhanov Russian University of Economics, Stremyanny Ln 36, 117997 Moscow, Russia; (A.A.O.); (P.M.T.)
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia; (S.G.K.); (A.S.K.)
| | - Alexandre A. Vetcher
- Nanotechnology Scientific and Educational Center, Institute of Biochemical Technology and Nanotechnology, Peoples’ Friendship University of Russia (RUDN), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
- Correspondence:
| | - Svetlana G. Karpova
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia; (S.G.K.); (A.S.K.)
| | - Alexander S. Kurnosov
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia; (S.G.K.); (A.S.K.)
| | - Svetlana Z. Rogovina
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia; (S.Z.R.); (A.L.I.); (A.A.B.)
| | - Alexey L. Iordanskii
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia; (S.Z.R.); (A.L.I.); (A.A.B.)
| | - Alexander A. Berlin
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia; (S.Z.R.); (A.L.I.); (A.A.B.)
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Raza ZA, Noor S, Majeed MI. PEGylation of poly(hydroxybutyrate) into multicomponent nanostructures and loading thereon with bioactive molecules for potential biomedical applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02467-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Melt Electrospinning of Polymers: Blends, Nanocomposites, Additives and Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041808] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Melt electrospinning has been developed in the last decade as an eco-friendly and solvent-free process to fill the gap between the advantages of solution electrospinning and the need of a cost-effective technique for industrial applications. Although the benefits of using melt electrospinning compared to solution electrospinning are impressive, there are still challenges that should be solved. These mainly concern to the improvement of polymer melt processability with reduction of polymer degradation and enhancement of fiber stability; and the achievement of a good control over the fiber size and especially for the production of large scale ultrafine fibers. This review is focused in the last research works discussing the different melt processing techniques, the most significant melt processing parameters, the incorporation of different additives (e.g., viscosity and conductivity modifiers), the development of polymer blends and nanocomposites, the new potential applications and the use of drug-loaded melt electrospun scaffolds for biomedical applications.
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14
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Degradability of Biodegradable Soil Moisture Sensor Components and Their Effect on Maize ( Zea mays L.) Growth. SENSORS 2020; 20:s20216154. [PMID: 33138313 PMCID: PMC7663592 DOI: 10.3390/s20216154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 02/01/2023]
Abstract
Inexpensive and no-maintenance biodegradable soil moisture sensors could improve existing knowledge on spatial and temporal variability of available soil water at field-scale. Such sensors can unlock the full potential of variable-rate irrigation (VRI) systems to optimize water applications in irrigated cropping systems. The objectives of this study were to assess (i) the degradation of soil moisture sensor component materials and (ii) the effects of material degradation on maize (Zea Mays L.) growth and development. This study was conducted in a greenhouse at Colorado State University, Colorado, USA, by planting maize seeds in pots filled with three growing media (field soil, silica sand, and Promix commercial potting media). The degradation rate of five candidate sensor materials (three blends of beeswax and soy wax, balsa wood, and PHBV (poly(3-hydroxybutyrate-co-3-hydroxyvalerate))) was assessed by harvesting sensor materials at four maize growth stages (30, 60, 90, and 120 days after transplanting). All materials under consideration showed stability in terms of mass and dimension except PHBV. PHBV was degraded entirely within 30 days in soil and Promix, and within 60 days in sand. Balsa wood did now show any significant reduction in mass and dimensions in all growth media. Similarly, there was no significant mass loss across wax blends (p = 0.05) at any growth stage, with a few exceptions. Among the wax blends, 3:1 (beeswax:soy wax) was the most stable blend in terms of mass and dimension with no surface cracks, making it a suitable encapsulant for soil sensor. All materials under consideration did not have any significant effect on maize growth (dry biomass, green biomass, and height) as compared to control plants. These results indicated that 3:1 beeswax:soy wax blend, PHBV, and balsa wood could be suitable candidates for various components of biodegradable soil moisture sensors.
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Raza ZA, Khalil S, Abid S. Recent progress in development and chemical modification of poly(hydroxybutyrate)-based blends for potential medical applications. Int J Biol Macromol 2020; 160:77-100. [DOI: 10.1016/j.ijbiomac.2020.05.114] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/25/2020] [Accepted: 05/15/2020] [Indexed: 02/06/2023]
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16
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Xu Z, Xu Y, Basuthakur P, Patra CR, Ramakrishna S, Liu Y, Thomas V, Nanda HS. Fibro-porous PLLA/gelatin composite membrane doped with cerium oxide nanoparticles as bioactive scaffolds for future angiogenesis. J Mater Chem B 2020; 8:9110-9120. [PMID: 32929440 DOI: 10.1039/d0tb01715a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Functionalized cerium oxide nanoparticle (CeNP)-loaded fibro-porous poly-l-lactic acid (PLLA)/gelatin composite membranes were prepared via an electrospinning technology. Considering the importance of such membrane scaffolds for promoting angiogenesis in tissue engineering and drug screening, a series of PLLA/gelatin composite fiber membranes loaded with different doses of CeNPs was prepared. The prepared composite membranes demonstrated hydrophilicity, water absorption, and improved mechanical properties compared to a PLLA and PLLA/gelatin membrane. Also, cell viability assay using somatic hybrid endothelial cells (EA.hy926) proved the biocompatible nature of the scaffolds. The biocompatibility was further supported by in vivo chick embryo angiogenesis assay using fertilized eggs. Our initial results support that these membrane scaffolds could be useful for angiogenesis-related disease treatment after further investigations.
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Affiliation(s)
- Zhiyang Xu
- College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Yulong Xu
- College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Papia Basuthakur
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007, Telangana State, India and Academy of Scientific & Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Chitta Ranjan Patra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007, Telangana State, India and Academy of Scientific & Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Yong Liu
- College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Vinoy Thomas
- Department of Materials Science and Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Himansu Sekhar Nanda
- Biomedical Engineering and Technology Laboratory, Discipline of Mechanical Engineering, PDPM-Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Dumna Airport Road, Jabalpur-482005, MP, India.
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17
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Biodegradable Polylactide-Poly(3-Hydroxybutyrate) Compositions Obtained via Blending under Shear Deformations and Electrospinning: Characterization and Environmental Application. Polymers (Basel) 2020; 12:polym12051088. [PMID: 32397628 PMCID: PMC7284690 DOI: 10.3390/polym12051088] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/19/2022] Open
Abstract
Compositions of polylactide (PLA) and poly(3-hydroxybutyrate) (PHB) thermoplastic polyesters originated from the nature raw have been obtained by blending under shear deformations and electrospinning methods in the form of films and nanofibers as well as unwoven nanofibrous materials, respectively. The degrees of crystallinity calculated on the base of melting enthalpies and thermal transition temperatures for glassy state, cold crystallization, and melting point for individual biopolymers and ternary polymer blends PLA-PHB- poly(ethyleneglycol) (PEG) have been evaluated. It has been shown that the mechanical properties of compositions depend on the presence of plasticizers PEG with different molar masses in interval of 400-1000. The experiments on the action of mold fungi on the films have shown that PHB is a fully biodegradable polymer unlike PLA, whereas the biodegradability of the obtained composites is determined by their composition. The sorption activity of PLA-PHB nanofibers and unwoven nanofibrous PLA-PHB composites relative to water and oil has been studied and the possibility of their use as absorbents in wastewater treatment from petroleum products has been demonstrated.
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Siracusa V, Karpova S, Olkhov A, Zhulkina A, Kosenko R, Iordanskii A. Gas Transport Phenomena and Polymer Dynamics in PHB/PLA Blend Films as Potential Packaging Materials. Polymers (Basel) 2020; 12:polym12030647. [PMID: 32178319 PMCID: PMC7182844 DOI: 10.3390/polym12030647] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/19/2022] Open
Abstract
Actually, in order to replace traditional fossil-based polymers, many efforts are devoted to the design and development of new and high-performance bioplastics materials. Poly(hydroxy alkanoates) (PHAS) as well as polylactides are the main candidates as naturally derived polymers. The intention of the present study is to manufacture fully bio-based blends based on two polyesters: poly (3-hydroxybutyrate) (PHB) and polylactic acid (PLA) as real competitors that could be used to replace petrol polymers in packaging industry. Blends in the shape of films have been prepared by chloroform solvent cast solution methodology, at different PHB/PLA ratios: 1/0, 1/9, 3/7, 5/5, 0/1. A series of dynamic explorations have been performed in order to characterize them from a different point of view. Gas permeability to N2, O2, and CO2 gases and probe (TEMPO) electron spin resonance (ESR) analyses were performed. Blend surface morphology has been evaluated by Scanning Electron Microscopy (SEM) while their thermal behavior was analyzed by Differential Scanning Calorimetry (DSC) technique. Special attention was devoted to color and transparency estimation. Both probe rotation mobility and N2, O2, and CO2 permeation have monotonically decreased during the transition from PLA to PHB, for all contents of bio-blends, namely because of transferring from PLA with lower crystallinity to PHB with a higher one. Consequently, the role of the crystallinity was elucidated. The temperature dependences for CO2 permeability and diffusivity as well as for probe correlation time allowed the authors to evaluate the activation energy of both processes. The values of gas transport energy activation and TEMPO rotation mobility are substantially close to each other, which should testify that polymer segmental mobility determines the gas permeability modality.
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Affiliation(s)
- Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
- Correspondence: ; Tel.: +39-3387275526
| | - Svetlana Karpova
- Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russian Federation; (S.K.); (A.O.)
| | - Anatoliy Olkhov
- Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russian Federation; (S.K.); (A.O.)
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Anna Zhulkina
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Regina Kosenko
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
| | - Alexey Iordanskii
- Semenov Institute of Chemical Physics, Kosygin str. 4, 119991 Moscow, Russian Federation; (A.Z.); (R.K.); (A.I.)
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Li YF, Xie YM, Chen J, Li BN, Xie ZF, Wang SS, Zhang ZW. Initial experiences with a novel biodegradable device for percutaneous closure of atrial septal defects: From preclinical study to first-in-human experience. Catheter Cardiovasc Interv 2019; 95:282-293. [PMID: 31714687 PMCID: PMC7027946 DOI: 10.1002/ccd.28529] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 09/09/2019] [Accepted: 09/18/2019] [Indexed: 11/15/2022]
Abstract
Objective To evaluate the feasibility, safety, and effectiveness of a novel, absorbable atrial septal defect (ASD) closure device made of poly‐l‐lactic acid (PLLA) in a swine model of ASD and for the first time in humans. Methods A preclinical safety study was conducted using a swine model of ASD. In a clinical setting, five pediatric patients underwent ASD closure with the PLLA device with fluoroscopic and transthoracic echocardiography guidance. The procedural results and clinical outcomes at 1 day, 30 days, 3 months, and 6 months after closure were analyzed. Results The 24‐ and 36‐month follow‐up results of the preclinical study demonstrated that the PLLA device exhibited good endothelialization and degradability in the swine model. In the clinical study, successful device implantation was achieved in all five patients (median age, 3.6 years; range, 3.1–6.5 years). The mean defect size was (13.6 ± 2.7) mm. Follow‐up at 30 days, 3 months, and 6 months was completed in all five cases. The complete defect closure rates with no residual shunt at 30 days, 3 months, and 6 months follow‐up were 60% (3/5), 80% (4/5), and 80% (4/5), respectively. No device dislodgement, significant aortic valve or mitral valve regurgitation, new onset cardiac arrhythmia, or other adverse events were reported. Conclusion The study results demonstrated that it is feasible to implant the PLLA device for closure of small to medium sized ASDs without significant residual shunts or severe adverse events in humans. The PLLA device exhibited good endothelialization and degradability in the swine model at 24 and 36 months. Further studies to evaluate long‐term safety and effectiveness with the device in a large cohort of patients are warranted.
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Affiliation(s)
- Yi-Fan Li
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Yu-Mei Xie
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Jun Chen
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Bo-Ning Li
- Department of Pediatric Cardiology, Shenzhen Children's Hospital, Shenzhen, China
| | - Zhao-Feng Xie
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Shu-Shui Wang
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
| | - Zhi-Wei Zhang
- Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangzhou, China
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20
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Chen H, Wang C, Ali I, Li H, Chen X, Yang W, Han W, Liu H, Jiao D, Yin F. Uniform Distribution and Densification of Jets in Needleless Electrospinning Using Annular Tip Nozzle. Polymers (Basel) 2019; 11:polym11081301. [PMID: 31382528 PMCID: PMC6723264 DOI: 10.3390/polym11081301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/28/2019] [Accepted: 08/01/2019] [Indexed: 12/23/2022] Open
Abstract
Numerous jets can be generated simultaneously on a nozzle by needleless melt electrospinning technology which has the advantages of solvent-free residues and environmental friendliness; and potential industrial application prospects. In this paper, the linear annular tip nozzle was taken as the research object, and the high-speed image acquisition of the jets generation and distribution process of annular tip nozzle was carried out and compared with that of straight-line tip nozzle. The results showed that the repulsive force between the jets caused a slight adjustment in the position of the jets on the free surface, the force between the jets on the annular closed curve canceled each other and eventually reached the equilibrium state, making the position of the jets stable and the distance between the jets the same, and the distance between the jets was related to the intensity of the induced electric field at the tip of the nozzle. Relevant conclusions can provide scientific and practical guidance for the design of needleless electrospinning nozzles on free surface in order to achieve uniform and efficient preparation of ultrafine fibers.
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Affiliation(s)
- Hongbo Chen
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
| | - Chuansheng Wang
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
| | - Imdad Ali
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haoyi Li
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoqing Chen
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weimin Yang
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenwen Han
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China.
| | - Haichao Liu
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
| | - Dongmei Jiao
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
| | - Fengfu Yin
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
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21
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Iordanskii A, Karpova S, Olkhov A, Borovikov P, Kildeeva N, Liu Y. Structure-morphology impact upon segmental dynamics and diffusion in the biodegradable ultrafine fibers of polyhydroxybutyrate-polylactide blends. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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22
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Kundrat V, Cernekova N, Kovalcik A, Enev V, Marova I. Drug Release Kinetics of Electrospun PHB Meshes. MATERIALS 2019; 12:ma12121924. [PMID: 31207921 PMCID: PMC6631252 DOI: 10.3390/ma12121924] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/13/2022]
Abstract
Microbial poly(3-hydroxybutyrate) (PHB) has several advantages including its biocompatibility and ability to degrade in vivo and in vitro without toxic substances. This paper investigates the feasibility of electrospun PHB meshes serving as drug delivery systems. The morphology of the electrospun samples was modified by varying the concentration of PHB in solution and the solvent composition. Scanning electron microscopy of the electrospun PHB scaffolds revealed the formation of different morphologies including porous, filamentous/beaded and fiber structures. Levofloxacin was used as the model drug for incorporation into PHB electrospun meshes. The entrapment efficiency was found to be dependent on the viscosity of the PHB solution used for electrospinning and ranged from 14.4–81.8%. The incorporation of levofloxacin in electrospun meshes was confirmed by Fourier-transform infrared spectroscopy and UV-VIS spectroscopy. The effect of the morphology of the electrospun meshes on the levofloxacin release profile was screened in vitro in phosphate-buffered saline solution. Depending upon the morphology, the electrospun meshes released about 14–20% of levofloxacin during the first 24 h. The percentage of drug released after 13 days increased up to 32.4% and was similar for all tested morphologies. The antimicrobial efficiency of all tested samples independent of the morphology, was confirmed by agar diffusion testing.
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Affiliation(s)
- Vojtech Kundrat
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
| | - Nicole Cernekova
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
| | - Adriana Kovalcik
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
| | - Vojtech Enev
- Department of Physical and Applied Chemistry, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
| | - Ivana Marova
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
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Elmowafy E, Abdal-Hay A, Skouras A, Tiboni M, Casettari L, Guarino V. Polyhydroxyalkanoate (PHA): applications in drug delivery and tissue engineering. Expert Rev Med Devices 2019; 16:467-482. [PMID: 31058550 DOI: 10.1080/17434440.2019.1615439] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The applications of naturally obtained polymers are tremendously increased due to them being biocompatible, biodegradable, environmentally friendly and renewable in nature. Among them, polyhydroxyalkanoates are widely studied and they can be utilized in many areas of human life research such as drug delivery, tissue engineering, and other medical applications. AREAS COVERED This review provides an overview of the polyhydroxyalkanoates biosynthesis and their possible applications in drug delivery in the range of micro- and nano-size. Moreover, the possible applications in tissue engineering are covered considering macro- and microporous scaffolds and extracellular matrix analogs. EXPERT COMMENTARY The majority of synthetic plastics are non-biodegradable so, in the last years, a renewed interest is growing to develop alternative processes to produce biologically derived polymers. Among them, PHAs present good properties such as high immunotolerance, low toxicity, biodegradability, so, they are promisingly using as biomaterials in biomedical applications.
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Affiliation(s)
- Enas Elmowafy
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Abdalla Abdal-Hay
- b Dentistry and Oral Health School , The University of Queensland , Qld , Australia
| | - Athanasios Skouras
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy.,d Department of Life Sciences , School of Sciences, European University Cyprus , Nicosia , Cyprus
| | - Mattia Tiboni
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Luca Casettari
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Vincenzo Guarino
- e Institute of Polymers, composites and Biomaterials , National Research Council of Italy , Naples , Italy
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24
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Xu Y, Li K, Liu Y, An Y, Xing C. Black plaster composite fiber prepared by upward electrospinning. J Appl Polym Sci 2019. [DOI: 10.1002/app.47662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yulong Xu
- College of Mechanical and Electric EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Kaili Li
- College of Mechanical and Electric EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Yong Liu
- College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Yan An
- College of First Clinical MedicalShandong University of Traditional Chinese Medicine Jinan 250355 Shandong China
| | - Changmin Xing
- College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China
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25
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Huang L, Cao K, Hu P, Liu Y. Orthogonal experimental preparation of Sanguis Draconis- Polyvinylpyrrolidone microfibers by electrospinning. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:308-321. [PMID: 30686124 DOI: 10.1080/09205063.2019.1570432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
How to improve the bioavailability of the Sanguis Draconis (SD) is an important problem in the potential clinical applications. The aim of this study was to develop a drug delivery system to achieve high bioavailability of SD, a drug with poor water solubility. It will promote the research about new formulations of the SD and the other insoluble drugs. In this study, a highly biocompatible hydrophilic polymer, polyvinylpyrrolidone (PVP), was selected as a carrier, mixed with different proportions of SD to produce SD-PVP microfibers by solution electrospinning. By orthogonal experiments, the optimal spinning conditions of the preparation of SD-PVP fibers were investigated. The morphology of different proportions of SD-PVP microfibers was observed by scanning electron microscopy, and the phase characteristics were characterized by Fourier transform infrared spectrometry, X-ray diffraction, and differential scanning calorimetry. The hydrophilic properties of SD-PVP fiber membranes with different SD content were analyzed by the water contact angle assay. In vitro dissolution experiments were carried out to observe the dissolution of drugs in SD-PVP fiber membranes. The results showed that the diameter of SD-PVP fibers increased with the enlargement of SD content. A eutectic mixture was formed after blending PVP and SD, and the hydrogen bonds were formed between the SD and PVP with no chemical reaction occurred. The dispersion of SD in the fiber decreased with the increase of SD content. The higher the content of SD in the fiber, the more hydrophobic the fiber membrane. In vitro dissolution studies revealed that the dissolution content of SD from SD-PVP microfibers was significantly higher than that of the pure or original drug SD. However, as the SD content increased from 15% to 30%, the dissolution of the drug in the SD-PVP fibers decreased. The SD-PVP fiber prepared in this study showed much higher solubility than the original drug in vitro, which has great significance for the development of new dosage forms for the clinical application of SD, and it has a useful reference for the study of similar bioavailability of poorly soluble drugs.
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Affiliation(s)
- Libing Huang
- a College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology , Beijing , China
| | - Kuan Cao
- a College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology , Beijing , China
| | - Ping Hu
- b Beijing Key Laboratory of Advanced Functional Polymer Composites , College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing , China
| | - Yong Liu
- b Beijing Key Laboratory of Advanced Functional Polymer Composites , College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing , China
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26
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Liu Y, Cao K, Karpova S, Olkhov A, Filatova A, Zhulkina A, Burkov A, Fomin SV, Rosa DS, Iordanskii AL. Comparative Characterization of Melt Electrospun Fibers and Films Based on PLA-PHB Blends: Diffusion, Drug Release, and Structural Features. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/masy.201800130] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong Liu
- Beijing Key Laboratory of Advanced Functional Polymer Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Kuan Cao
- Beijing Key Laboratory of Advanced Functional Polymer Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Svetlana Karpova
- Emanuel Institute of Biochemical Physics; Kosygin Str. 4 Moscow 119991 RF
| | - Anatoliy Olkhov
- Semenov Institute of Chemical Physics; Kosygin Str. 4 Moscow 119991 RF
| | - Anna Filatova
- Semenov Institute of Chemical Physics; Kosygin Str. 4 Moscow 119991 RF
| | - Anna Zhulkina
- Semenov Institute of Chemical Physics; Kosygin Str. 4 Moscow 119991 RF
| | - Andrey Burkov
- Vyatskiy State University; Moskovskaya ul. 36 Kirov (obl.) 610000 RF
| | - Sergey V. Fomin
- Vyatskiy State University; Moskovskaya ul. 36 Kirov (obl.) 610000 RF
| | - Derval S. Rosa
- Universidade Federal do ABC (UFABC).; Av. dos Estados, 5001 Santo André Sao Paulo Brazil
| | - Alexey L. Iordanskii
- Semenov Institute of Chemical Physics; Kosygin Str. 4 Moscow 119991 RF
- Vyatskiy State University; Moskovskaya ul. 36 Kirov (obl.) 610000 RF
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