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Šišková B, Kožár M, Staroňová R, Shepa I, Hajdučková V, Hudecová P, Kaduková M, Schnitzer M. Antibacterial Effect and Therapy of Chronic Skin Defects Using the Composite Bioscaffold Polycaprolactone/GelitaSpon/Povidone-Iodine in Domestic Dogs. Polymers (Basel) 2023; 15:4201. [PMID: 37959881 PMCID: PMC10647826 DOI: 10.3390/polym15214201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 11/15/2023] Open
Abstract
Chronic wounds and the failure of conventional treatment are relatively common in veterinary medicine. Recently, there has been a growing interest in alternative therapeutic approaches and the utilization of biodegradable materials. Their potential application in wound therapy may offer a novel and more suitable option compared to conventional treatment methods. Biodegradable materials can be classified into two main categories: natural, synthetic, and a combination of both, which have the potential to have synergistically enhanced properties. In this study, four domestic dogs with clinical symptoms of chronic wounds were enrolled. These wounds underwent treatment utilizing a novel biodegradable composite material composed of gelatin sponge combined with two electrospun layers of polycaprolactone (PCL) along with polyvinylpyrrolidone (PVP) fibers containing povidone-iodine complex (PVP-I). The initial phase of the study was dedicated to evaluating the antibacterial properties of iodine against Staphylococcus aureus and Escherichia coli. On average, wound healing in domestic dogs took 22 days from the initial treatment, and iodine concentrations demonstrated a significant antibacterial effect against Escherichia coli and Staphylococcus aureus. Based on the favorable outcomes observed in wound management, we believe that the utilization of a blend of natural and synthetic biodegradable materials holds promise as an effective wound therapy option.
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Affiliation(s)
- Barbora Šišková
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Martin Kožár
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Radka Staroňová
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (B.Š.); (R.S.)
| | - Ivan Shepa
- Institute of Material Research, Slovak Academy of Sciences, 040 01 Košice, Slovakia;
| | - Vanda Hajdučková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (V.H.); (P.H.)
| | - Patrícia Hudecová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (V.H.); (P.H.)
| | - Michaela Kaduková
- Department of Parasitology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia;
| | - Marek Schnitzer
- Faculty of Mechanical Engineering, Department of Biomedical Engineering and Measurement, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia;
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Brunckova H, Mudra E, Streckova M, Medvecky L, Sopcak T, Shepa I, Kovalcikova A, Lisnichuk M, Kolev H. Transformation of Amorphous Terbium Metal-Organic Framework on Terbium Oxide TbO x(111) Thin Film on Pt(111) Substrate: Structure of Tb xO y Film. Nanomaterials (Basel) 2022; 12:2817. [PMID: 36014682 PMCID: PMC9412416 DOI: 10.3390/nano12162817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/10/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
The present study is focused on the synthesis and structural properties of amorphous terbium metal-organic framework thin film (TbMOF-TF) and its transformation to terbium oxide by pyrolysis at 450 °C in the air. The crystalline (cTbMOF) and amorphous (aTbMOF) films were prepared by solvothermal synthesis using different amounts (0.4 and 0.7 mmol) of the modulator (sodium acetate), respectively. The powders were characterized by differential scanning calorimetry (DSC), thermogravimetry (TG), Fourier transform infrared (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). The varied chemical composition of the surface of TbMOFs and TbxOy was investigated by X-ray photoelectron spectroscopy (XPS). X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed that aTbMOF had been fully transformed to a Tb4O7 phase with a cubic crystal structure at 450 °C. The amorphous aTbMOF-TF film was prepared by dropping a colloidal solution of amorphous precursor nanocrystals on the SiO2/Si substrates covered with Pt as an interlayer. XPS confirmed the presence of Tb in two states, Tb3+ and Tb4+. The amorphous film has a rough, porous microstructure and is composed of large clusters of worm-like particles, while terbium oxide film consists of fine crystallites of cubic fluorite cF-TbOx, c-Tb4O7, and c-Tb2O3 phases. The surface topography was investigated by a combination of confocal (CM) and atomic force microscopy (AFM). The amorphous film is porous and rough, which is contrast to the crystalline terbium oxide film.
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Affiliation(s)
- Helena Brunckova
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Erika Mudra
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Magdalena Streckova
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Lubomir Medvecky
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Tibor Sopcak
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Ivan Shepa
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Alexandra Kovalcikova
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Maksym Lisnichuk
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia
| | - Hristo Kolev
- Institute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev St., 1113 Sofia, Bulgaria
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Gorejová R, Podrojková N, Sisáková K, Shepa J, Shepa I, Kovalčíková A, Šišoláková I, Kaľavský F, Oriňaková R. Interaction of thin polyethyleneimine layer with the iron surface and its effect on the electrochemical behavior. Sci Rep 2022; 12:3460. [PMID: 35236912 PMCID: PMC8891304 DOI: 10.1038/s41598-022-07474-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/21/2022] [Indexed: 11/09/2022] Open
Abstract
Polymer-coated metals may act as biodegradable orthopedic implants with adjustable corrosion rates. Metallic surfaces represent a dynamic system with specific interactions occurring after the material is implanted into the human body. An additional layer, in the form of polymeric thin film, changes the nature of this metal-body fluids interface. Moreover, the interaction between polymer and metal itself can differ for various systems. Iron-based material modified with a thin layer of polyethyleneimine (PEI) coating was prepared and studied as potential absorbable implant. Computational methods were employed to study the interaction between the metallic surface and polymer functional monomer units at atomic levels. Various spectroscopical and optical methods (SEM, AFM, Confocal, and Raman spectroscopy) were also used to characterize prepared material. Electrochemical measurements have been chosen to study the polymer adsorption process onto the iron surface and corrosion behavior which is greatly influenced by the PEI presence. The adsorption mechanism of PEI onto iron was proposed alongside the evaluation of Fe and Fe-PEI degradation behavior studied using the impedance method. Bonding via amino -NH2 group of PEI onto Fe and enhanced corrosion rate of coated samples were observed and confirmed.
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Affiliation(s)
- Radka Gorejová
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - Natália Podrojková
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - Katarína Sisáková
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - Jana Shepa
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - Ivan Shepa
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01, Košice, Slovakia
| | - Alexandra Kovalčíková
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01, Košice, Slovakia
| | - Ivana Šišoláková
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - František Kaľavský
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia
| | - Renáta Oriňaková
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 041 54, Košice, Slovakia.
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Chromá R, Vilková M, Shepa I, Makoś-Chełstowska P, Andruch V. Investigation of tetrabutylammonium bromide-glycerol-based deep eutectic solvents and their mixtures with water by spectroscopic techniques. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115617] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Mudra E, Hrubovcakova M, Shepa I, Kovalcikova A, Girman V, Bures R, Dusza J. Processing and characterization of fiber-reinforced and layered alumina - graphene composites. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.03.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hovancová J, Šišoláková I, Vanýsek P, Oriňaková R, Shepa I, Vojtko M, Oriňak A. Nanostructured Gold Microelectrodes for Non‐enzymatic Glucose Sensor. ELECTROANAL 2019. [DOI: 10.1002/elan.201900163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jana Hovancová
- Department of Physical ChemistryUniversity of P.J. Šafárik in Košice Moyzesova 11 040 01 Košice Slovakia
| | - Ivana Šišoláková
- Department of Physical ChemistryUniversity of P.J. Šafárik in Košice Moyzesova 11 040 01 Košice Slovakia
| | - Petr Vanýsek
- Institute of ElectrotechnologyTechnical University of Brno Technická 10 Brno 602 00 Czech Republic
| | - Renáta Oriňaková
- Department of Physical ChemistryUniversity of P.J. Šafárik in Košice Moyzesova 11 040 01 Košice Slovakia
| | - Ivan Shepa
- Institute of Materials ResearchSlovak Academy of Sciences Watsonova 47 040 01 Košice Slovakia
| | - Marek Vojtko
- Institute of Materials ResearchSlovak Academy of Sciences Watsonova 47 040 01 Košice Slovakia
| | - Andrej Oriňak
- Department of Physical ChemistryUniversity of P.J. Šafárik in Košice Moyzesova 11 040 01 Košice Slovakia
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