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Puišo J, Paškevičius A, Žvirgždas J, Dimitrova TL, Litvakas A, Adliene D. Application of Red Onion Peel Extract for Green Synthesis of Silver Nanoparticles in Hydrogels Exhibiting Antimicrobial Properties. Gels 2023; 9:498. [PMID: 37367169 DOI: 10.3390/gels9060498] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
UV-initiated green synthesis of metal nanoparticles by using plant extracts as photoreducing agents is of particular interest since it is an environmentally friendly, easy-to-maintain, and cost-effective method. Plant molecules that act as reducing agents are assembled in a highly controlled way which makes them suitable for metal nanoparticle synthesis. Depending on the plant species, their application for green synthesis of metal nanoparticles for diverse applications may contribute to the mediation/reduction in organic waste amounts, thus enabling the implementation of the circular economy concept. In this work, UV-initiated green synthesis of Ag nanoparticles in hydrogels and hydrogel's thin films containing gelatin (matrix), red onion peel extract of different concentrations, water, and a small amount of 1 M AgNO3 have been investigated and characterized using UV-Vis spectroscopy, SEM and EDS analysis, XRD technique, performing swelling experiments and antimicrobial tests using bacteria (Staphylococcus aureus, Acinetobacter baumannii, Pseudomonas aeruginosa), yeasts (Candida parapsilosis, Candida albicans) and microscopic fungi (Aspergillus flavus, Aspergillus fumigatus). It was found that the antimicrobial effectiveness of the silver-enriched red onion peel extract-gelatin films was higher at lower AgNO3 concentrations as compared to those usually used in the commercially available antimicrobial products. The enhancement of the antimicrobial effectiveness was analyzed and discussed, assuming the synergy between photoreducing agent (red onion peel extract) and silver nitrate (AgNO3) in the initial gel solutions leading to the intensification of Ag nanoparticles production.
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Affiliation(s)
- Judita Puišo
- Department of Physics, Kaunas University of Technology, Studentų Str. 50, LT-51368 Kaunas, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Institute of Botany, Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | - Jonas Žvirgždas
- Laboratory of Biodeterioration Research, Institute of Botany, Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | - Todorka L Dimitrova
- Faculty of Physics and Technology, University of Plovdiv "Paisii Hilendarski", Tzar Assen Str. 24, 4000 Plovdiv, Bulgaria
| | - Andrejus Litvakas
- Department of Physics, Kaunas University of Technology, Studentų Str. 50, LT-51368 Kaunas, Lithuania
| | - Diana Adliene
- Department of Physics, Kaunas University of Technology, Studentų Str. 50, LT-51368 Kaunas, Lithuania
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Žalnėravičius R, Pakštas V, Grincienė G, Klimas V, Paškevičius A, Timmo K, Kauk-Kuusik M, Franckevičius M, Niaura G, Talaikis M, Jagminas A, Ramanavičius A. Antimicrobial particles based on Cu 2ZnSnS 4 monograins. Colloids Surf B Biointerfaces 2023; 225:113275. [PMID: 36965333 DOI: 10.1016/j.colsurfb.2023.113275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 03/27/2023]
Abstract
In this research, Cu2ZnSnS4 (CZTS) particles were successfully fabricated via the molten salt approach from the copper, zinc and tin sulphides as raw precursors. SEM analysis revealed that CZTS particles are tetragonal-shaped with sharp edges, smooth flat plane morphology, and crystal size varying from 10.8 to 28.7 µm. The phase and crystalline structure of synthesized powders were investigated using XRD analysis, which confirms the presence of a tetragonal crystal structure kesterite phase. The chemical composition of CZTS particles was evaluated by EDX spectroscopy, which identified the nearly stoichiometric composition with an averaged formula of Cu1.88Zn1.04SnS3.97. The TG/DTA-MS and ICP-OES analysis showed the possible decomposition pathways and predicted their degradation rate in aqueous solutions. The CZTS particles possessed highly effective concentration and time-dependent antimicrobial properties against medically relevant bacteria and yeast strains. The CZTS particles (1 g L-1) exhibited over 95.7 ± 1.9% killing efficiency towards M. luteus. In contrast, higher dosages (3.5 and 5 g L-1) led to its complete inactivation and reduced the P. aeruginosa cell viability to 43.2 ± 3.2% and 4.1 ± 1.1%, respectively. Moreover, the CZTS particles (0.5 g L-1) are responsible for causing 54.8 ± 1.8% of C. krusei and 89.7 ± 2.1% of C. parapsilosis yeasts death within the 24 h of exposure, which expanded to almost 100% when yeasts were treated with two times higher CZTS concentration (1.0 g L-1). The mechanism of action has been proposed and evidenced by monitoring the 2',7'-dichlorofluorescein (DCF) fluorescence, which revealed that the overproduction of reactive oxygen species (ROS) is responsible for microorganism death.
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Affiliation(s)
- Rokas Žalnėravičius
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Vidas Pakštas
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Giedrė Grincienė
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Vaclovas Klimas
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania
| | - Kristi Timmo
- Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia
| | - Marit Kauk-Kuusik
- Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia
| | - Marius Franckevičius
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Gediminas Niaura
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Martynas Talaikis
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Arūnas Jagminas
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Arūnas Ramanavičius
- Centre for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania; Department of Physical Chemistry, Vilnius University, Universiteto 3, Vilnius, Lithuania.
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Žalnėravičius R, Paškevičius A, Samukaitė-Bubnienė U, Ramanavičius S, Vilkienė M, Mockevičienė I, Ramanavičius A. Microbial Fuel Cell Based on Nitrogen-Fixing Rhizobium anhuiense Bacteria. Biosensors (Basel) 2022; 12:bios12020113. [PMID: 35200373 PMCID: PMC8869864 DOI: 10.3390/bios12020113] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 01/29/2022] [Accepted: 02/05/2022] [Indexed: 06/01/2023]
Abstract
In this study, the nitrogen-fixing, Gram-negative soil bacteria Rhizobium anhuiense was successfully utilized as the main biocatalyst in a bacteria-based microbial fuel cell (MFC) device. This research investigates the double-chambered, H-type R. anhuiense-based MFC that was operated in modified Norris medium (pH = 7) under ambient conditions using potassium ferricyanide as an electron acceptor in the cathodic compartment. The designed MFC exhibited an open-circuit voltage (OCV) of 635 mV and a power output of 1.07 mW m-2 with its maximum power registered at 245 mV. These values were further enhanced by re-feeding the anode bath with 25 mM glucose, which has been utilized herein as the main carbon source. This substrate addition led to better performance of the constructed MFC with a power output of 2.59 mW m-2 estimated at an operating voltage of 281 mV. The R. anhuiense-based MFC was further developed by improving the charge transfer through the bacterial cell membrane by applying 2-methyl-1,4-naphthoquinone (menadione, MD) as a soluble redox mediator. The MD-mediated MFC device showed better performance, resulting in a slightly higher OCV value of 683 mV and an almost five-fold increase in power density to 4.93 mW cm-2. The influence of different concentrations of MD on the viability of R. anhuiense bacteria was investigated by estimating the optical density at 600 nm (OD600) and comparing the obtained results with the control aliquot. The results show that lower concentrations of MD, ranging from 1 to 10 μM, can be successfully used in an anode compartment in which R. anhuiense bacteria cells remain viable and act as a main biocatalyst for MFC applications.
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Affiliation(s)
- Rokas Žalnėravičius
- Centre for Physical Sciences and Technology, Sauletekio Av. 3, LT-10257 Vilnius, Lithuania; (R.Ž.); (U.S.-B.); (S.R.)
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania;
| | - Urtė Samukaitė-Bubnienė
- Centre for Physical Sciences and Technology, Sauletekio Av. 3, LT-10257 Vilnius, Lithuania; (R.Ž.); (U.S.-B.); (S.R.)
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Institute of Chemistry, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Simonas Ramanavičius
- Centre for Physical Sciences and Technology, Sauletekio Av. 3, LT-10257 Vilnius, Lithuania; (R.Ž.); (U.S.-B.); (S.R.)
| | - Monika Vilkienė
- Lithuanian Research Centre for Agriculture and Forestry, Instituto Av.1, Akademija, LT-58344 Kedainiai, Lithuania; (M.V.); (I.M.)
| | - Ieva Mockevičienė
- Lithuanian Research Centre for Agriculture and Forestry, Instituto Av.1, Akademija, LT-58344 Kedainiai, Lithuania; (M.V.); (I.M.)
| | - Arūnas Ramanavičius
- Centre for Physical Sciences and Technology, Sauletekio Av. 3, LT-10257 Vilnius, Lithuania; (R.Ž.); (U.S.-B.); (S.R.)
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Institute of Chemistry, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
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Bridžiuvienė D, Raudonienė V, Švedienė J, Paškevičius A, Baužienė I, Vaitonis G, Šlepetienė A, Šlepetys J, Kačergius A. Impact of Soil Chemical Properties on the Growth Promotion Ability of Trichoderma ghanense, T. tomentosum and Their Complex on Rye in Different Land-Use Systems. J Fungi (Basel) 2022; 8:jof8010085. [PMID: 35050025 PMCID: PMC8777797 DOI: 10.3390/jof8010085] [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: 11/23/2021] [Revised: 12/30/2021] [Accepted: 01/13/2022] [Indexed: 02/04/2023] Open
Abstract
Microbial-based biostimulants that increase plant performance and ensure sustainable restoration of degraded soils are of great importance. The aim of the present study was to evaluate the growth promotion ability of indigenous Trichoderma ghanense, T. tomentosum and their complex on early rye seedlings in sustained grassland and arable soil. The impact of soil chemical properties on the ability of selected Trichoderma strains and their complex to promote plant growth was determined by the evaluation of the rye (Secale cereale L.) early seedling growth—measuring the length of shoots and roots as well as their dry weight. Trichoderma species were tested for their ability to produce extracellular degradative enzymes on solid media. Furthermore, the soil properties and CM-cellulase activity of soil were estimated. The indigenous Trichoderma strains possess the capacity to produce enzymes such as peroxidase, laccase, tyrosinase, and endoglucanase. The results indicated a significant (p < 0.05) increase in plant growth and the improvement of some soil chemical properties (total N, mobile humic and fulvic acids, exchangeable K2O, soil CM-cellulase activity) in inoculated soils when compared to the control. The growth of the roots of rye seedlings in sustained grassland was enhanced when T. tomentosum was applied (p = 0.005). There was an increase in total weight and shoot weight of rye seedlings when T. ghanense was used in the arable soil (p = 0.014 and p = 0.024). The expected beneficial effect of Trichoderma spp. complex on rye growth promotion was not observed in any tested soil. The results could find application in the development of new and efficient biostimulants, since not only do physiological characteristics of fungi play an important role but also the quality of the soil has an impact.
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Affiliation(s)
- Danguolė Bridžiuvienė
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
| | - Vita Raudonienė
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
| | - Jurgita Švedienė
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
- Correspondence:
| | - Algimantas Paškevičius
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
| | - Ieva Baužienė
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
| | - Gintautas Vaitonis
- Nature Research Centre, 08412 Vilnius, Lithuania; (D.B.); (V.R.); (A.P.); (I.B.); (G.V.)
| | - Alvyra Šlepetienė
- Lithuanian Research Centre for Agriculture and Forestry, 58344 Akademija, Lithuania; (A.Š.); (J.Š.); (A.K.)
| | - Jonas Šlepetys
- Lithuanian Research Centre for Agriculture and Forestry, 58344 Akademija, Lithuania; (A.Š.); (J.Š.); (A.K.)
| | - Audrius Kačergius
- Lithuanian Research Centre for Agriculture and Forestry, 58344 Akademija, Lithuania; (A.Š.); (J.Š.); (A.K.)
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Vaičiulytė V, Ložienė K, Švedienė J, Raudonienė V, Paškevičius A. α-Terpinyl Acetate: Occurrence in Essential Oils Bearing Thymus pulegioides, Phytotoxicity, and Antimicrobial Effects. Molecules 2021; 26:molecules26041065. [PMID: 33670506 PMCID: PMC7922985 DOI: 10.3390/molecules26041065] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 01/26/2023] Open
Abstract
The aim of this study was to evaluate occurrence of T. pulegioides α-terpinyl acetate chemotype, as source of natural origin α-terpinyl acetate, to determine its phytotoxic and antimicrobial features. Were investigated 131 T. pulegioides habitats. Essential oils were isolated by hydrodistillation and analyzed by GC-FID and GC-MS. Phytotoxic effect of essential oil of this chemotype on monocotyledons and dicotyledons through water and air was carried out in laboratory conditions; the broth microdilution method was used to screen essential oil effect against human pathogenic microorganisms. Results showed that α-terpinyl acetate was very rare compound in essential oil of T. pulegioides: it was found only in 35% of investigated T. pulegioides habitats. α-Terpinyl acetate (in essential oil and pure) demonstrated different behavior on investigated plants. Phytotoxic effect of α-terpinyl acetate was stronger on investigated monocotyledons than on dicotyledons. α-Terpinyl acetate essential oil inhibited seeds germination and radicles growth for high economic productivity forage grass monocotyledon Poa pratensis, but stimulated seed germination for high economic productive forage legume dicotyledon Trifolium pretense. α-Terpinyl acetate essential oil showed high antimicrobial effect against fungi and dermatophytes but lower effect against bacteria and Candida yeasts. Therefore, T. pulegioides α-terpinyl acetate chemotype could be a potential compound for developing preventive measures or/and drugs for mycosis.
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Mažeika K, Šiliauskas L, Skridlaitė G, Matelis A, Garjonytė R, Paškevičius A, Melvydas V. Features of iron accumulation at high concentration in pulcherrimin-producing Metschnikowia yeast biomass. J Biol Inorg Chem 2021; 26:299-311. [PMID: 33586048 DOI: 10.1007/s00775-021-01853-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/21/2021] [Indexed: 10/22/2022]
Abstract
In previous studies it was found that the antimicrobial properties of pulcherrimin-producing Metschnikowia species are related to the formation of a red pigment-pulcherrimin and sequestration of free iron from their growth medium. For strains of Metschnikowia pulcherrima, M. sinensis, M. shaxiensis, and M. fructicola, at a high, ≈80 mg/kg, elemental Fe concentration in agar growth media we observed the essentially different (metal luster, non-glossy rust like, and colored) yeast biomass coatings. For the studied strains the optical and scanning electron microscopies showed the increased formation of chlamydospores that accumulate a red pigment-insoluble pulcherrimin rich in iron. The chlamydospore formation and decay depended on the iron concentration. In this study pulcherrimin in biomass of the selected Metschnikowia strains was detected by Mössbauer spectroscopy. At ≈80 mg/kg elemental Fe concentration the Mössbauer spectra of biomass of the studied strains were almost identical to these of purified pulcherrimin. Iron in pulcherrimin reached ≈1% of biomass by weight which is very high in comparison with elemental Fe percentage in growth medium and is not necessary for yeast growth. The pulcherrimin in biomass was also observed by Mössbauer spectroscopy at lower, ≈5 mg/kg, elemental Fe concentration. Through chemical binding of iron pulcherrimin sequestrates the soluble Fe in the growth media. However, at high Fe concentrations, the chemical and biochemical processes lead to the pulcherrimin accumulation in biomass chlamydospores. When soluble iron is sequestrated or removed from the growth media in this way, it becomes inaccessible for other microorganisms.
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Affiliation(s)
- Kęstutis Mažeika
- Center for Physical Sciences and Technology, Savanorių 231, 02300, Vilnius, Lithuania.
| | | | | | - Antanas Matelis
- Nature Research Center, Akademijos 2, 08412, Vilnius, Lithuania
| | - Rasa Garjonytė
- Center for Physical Sciences and Technology, Savanorių 231, 02300, Vilnius, Lithuania
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Žalnėravičius R, Klimas V, Paškevičius A, Grincienė G, Karpicz R, Jagminas A, Ramanavičius A. Highly efficient antimicrobial agents based on sulfur-enriched, hydrophilic molybdenum disulfide nano/microparticles and coatings functionalized with palladium nanoparticles. J Colloid Interface Sci 2021; 591:115-128. [PMID: 33596501 DOI: 10.1016/j.jcis.2021.01.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/21/2021] [Accepted: 01/30/2021] [Indexed: 02/02/2023]
Abstract
In this research the molybdenum disulfide (MoS2)-based nano/microparticles and coatings were synthesized through a simple, one-step hydrothermal approach without any other additives. Composition, structure, and morphology of the synthesized MoS2-based materials were investigated using ultraviolet-visible spectroscopy (UV-Vis), inductively coupled plasma optical emission spectrometry (ICP-OES), scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDX) techniques. The fabricated materials exhibited relatively small (Δθ = 18.7 ± 2.5⁰) contact angle and prominent hydrophilic properties, which are attributable to sulfur-enriched MoS2 composite as evidenced by simultaneous thermal analysis (STA) coupled with mass spectrometric (MS) analysis of evolving gaseous species (TG/DTA-MS) analysis. Such nanostructures exhibit a better adhesion of biomolecules, thus facilitating the interaction between them, as confirmed by highly effective antimicrobial action. The present study examines antimicrobial properties of hydrophilic, sulfur-enriched MoS2 nano/microparticles as well as MoS2-based coatings against various humans' pathogenic bacteria such as Salmonella enterica, Pseudomonas aeruginosa, Escherichia coli, methicillin-resistant Staphylococcus aureus (MRSA), Micrococcus luteus, and two Candida yeast strains (C. parapsilosis, C. krusei). The MoS2-ns (40 μg mL-1) showed over 90% killing efficiency against S. aureus MRSA bacteria and both Candida yeast when exposed for 24 h. Petal-like MoS2 microstructures and heterostructured MoS2/Ti and Pd/MoS2/Ti coatings also possessed high antimicrobial potential and are considered as a promising antimicrobial agent. The MoS2-induced production of intracellular reactive oxygen species (ROS) was evidenced by measuring the standard DCF dye fluorescence.
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Affiliation(s)
- Rokas Žalnėravičius
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Vaclovas Klimas
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania
| | - Giedrė Grincienė
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Renata Karpicz
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Arūnas Jagminas
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Arūnas Ramanavičius
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania; Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225 Vilnius, Lithuania.
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Paškevičius A, Švedienė J, Kiverytė S, Bridžiuvienė D, Vaitonis G, Jablonskienė V. Candida Distribution in Onychomycosis and in vitro Susceptibility to Antifungal Agents. Acta Dermatovenerol Croat 2020; 28:204-209. [PMID: 33834991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The aim of this study was to determine distribution of the Candida (C.) species in onychomycosis and analyses in vitro susceptibility to fluconazole and itraconazole. In recent years, cases of onychomycosis in Lithuania caused by Candida have increased significantly. In the period between 2009 and 2016, a total of 8149 clinical cases (outpatients and inpatients) were investigated at the Vilnius University Hospital Santaros Clinics (VUH SC). Candida yeasts were identified using VITEK 2 (BioMerieux, France) and IVD Maldi biotyper 2.3 (Bruker Daltonik GmbH, Germany), automated systems for identification of yeasts. The antifungal susceptibility to the Candida species were determined by disc diffusion. Candida spp. were the most frequently isolated pathogens in onychomycosis during the investigation period. The main species in onychomycosis were C. albicans (38.6%), followed by C. krusei (33.7%), C. tropicalis (11.1%), C. parapsilosis (7.9%), and other Candida (8.7%). The different antifungal susceptibility patterns among Candida species confirm the need to perform antifungal susceptibility in vitro testing of yeasts from patients with onychomycosis.
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Affiliation(s)
- Algimantas Paškevičius
- Algimantas Paškevičius, PhD, Laboratory of Biodeterioration Research, Nature Research Centre, Vilnius, Lithuania;
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Jefanova O, Baužienė I, Lujanienė G, Švedienė J, Raudonienė V, Bridžiuvienė D, Paškevičius A, Levinskaitė L, Žvirgždas J, Petrošius R, Skuratovič Ž, Mažeika J. Initiation of radioecological monitoring of forest soils and plants at the Lithuanian border region before the start of the Belarusian nuclear power plant operation. Environ Monit Assess 2020; 192:666. [PMID: 33001295 DOI: 10.1007/s10661-020-08638-y] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Knowledge of the background activity concentrations of anthropogenic radionuclides before the start of operation of the new nuclear power plant in Belarus, BelNPP, is an issue of great importance for neighbouring countries. In this study, we provide the pilot characterisation of the Lithuanian part of the 30-km zone of the BelNPP, emphasising the forest plants, terrestrial mosses, forest organic and mineral topsoil to describe the preoperational radioecological state of the pine forest ecosystem. Key anthropogenic radionuclides (14C, 3H, 137Cs and 239,240Pu) were analysed. The 14C specific activity varied from 97.80 ± 1.30 to 102.40 ± 0.79 pMC. The 3H specific activity in the tissue-free water tritium form varied from 13.2 ± 2.2 TU to 20.8 ± 2.3 TU, which corresponded to the 3H level of precipitation in this region. The activity concentrations of 239,240Pu in soil and moss samples did not exceed 1 Bq/kg and were mainly due to global fallout after nuclear tests. The 137Cs inventory in the pine forest soils of the Lithuanian part of the BelNPP 30-km zone varied from 930 ± 70 to 1650 ± 430 Bq/m2. High variation of the inventory and uneven distribution in the soil profile conditioned a wide range of 137Сs activity in terrestrial plants from 1.0 ± 0.5 to 40.5 ± 1.8 Bq/kg dry weight. The abundance of microorganisms in different seasons and soil depths do not exceed the natural levels. According to PCA loads, the number of microorganisms and variability of 137Cs specific activity is determined by soil abiotic parameters.
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Affiliation(s)
- Olga Jefanova
- Laboratory of Nuclear Geophysics and Radioecology, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Ieva Baužienė
- Laboratory of Geoenvironmental Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania.
| | - Galina Lujanienė
- Department of Environmental Research, State Research Institute Center for Physical Sciences and Technology, Saulėtekio av. 3, 10257, Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Vita Raudonienė
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Danguolė Bridžiuvienė
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Loreta Levinskaitė
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Jonas Žvirgždas
- Laboratory of Biodeterioration Research, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Rimantas Petrošius
- Laboratory of Nuclear Geophysics and Radioecology, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Žana Skuratovič
- Laboratory of Nuclear Geophysics and Radioecology, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
| | - Jonas Mažeika
- Laboratory of Nuclear Geophysics and Radioecology, State Institute Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania
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10
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Žalnėravičius R, Mikalauskaitė A, Niaura G, Paškevičius A, Jagminas A. Ultra-small methionine-capped Au 0/Au + nanoparticles as efficient drug against the antibiotic-resistant bacteria. Mater Sci Eng C Mater Biol Appl 2019; 102:646-652. [PMID: 31147036 DOI: 10.1016/j.msec.2019.04.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 03/14/2019] [Accepted: 04/20/2019] [Indexed: 12/17/2022]
Abstract
In this study we examined the influence of ultra-small gold and magnetite‑gold nanoparticles (NPs) stabilized with d,l-methionine, Fe3O4@Au@Met, on their antibacterial efficacy against three of twelve the worst bacterial family members included in the World Health Organization (WHO) list. In particular, gram-negative Acinetobacter baumannii, Salmonella enterica and gram-positive methicillin-resistant Staphylococcus aureus and Micrococcus luteus were tested. Apart from the synthesis, gold species reduction and NP stabilization, an excess of methionine has been used herein to detach ultra-small gold NPs from the Fe3O4@Au@Met surface, collect them and investigate. The antimicrobial efficiency of the ultra-small (Ø ~ 1.8 nm) Au@Met NPs and Fe3O4@Au@Met NPs was evaluated through the quantitative analysis by comparing with that of naked magnetite NPs, d,l-Met and BSA. It has been determined that compared with the control sample, 70 mg L-1 probe of Au@Met NPs exhibited the killing efficiency of 84.4-58.5% against gram-negative bacteria and 89.1-75.7% against gram-positive bacteria. The composition, structure, and morphology of the synthesized and tested herein NPs were investigated by inductively coupled plasma optical emission spectrometry, magnetic measurements, FTIR, XRD, XPS, AFM and HRTEM.
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Affiliation(s)
- Rokas Žalnėravičius
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Agnė Mikalauskaitė
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Gediminas Niaura
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania
| | - Arūnas Jagminas
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania.
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11
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Novickij V, Zinkevičienė A, Perminaitė E, Čėsna R, Lastauskienė E, Paškevičius A, Švedienė J, Markovskaja S, Novickij J, Girkontaitė I. Non-invasive nanosecond electroporation for biocontrol of surface infections: an in vivo study. Sci Rep 2018; 8:14516. [PMID: 30266920 PMCID: PMC6162327 DOI: 10.1038/s41598-018-32783-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 05/09/2018] [Accepted: 09/14/2018] [Indexed: 12/20/2022] Open
Abstract
Invasive infections caused by drug-resistant bacteria are frequently responsible for fatal sepsis, morbidity and mortality rates. In this work, we propose a new methodology based on nanosecond high frequency electric field bursts, which enables successful eradication of bacteria in vivo. High frequency (15 kHz) 15–25 kV/cm 300–900 ns pulsing bursts were used separately and in combination with acetic acid (0.1–1%) to treat Pseudomonas aeruginosa in a murine model. Acetic acid 1% alone was effective resulting in almost 10-fold reduction of bacteria viability, however combination of nanosecond electric field and acetic acid 1% treatment was the most successful showing almost full eradication (0.01% survival compared to control) of the bacteria in the contaminated area. The short duration of the pulses (sub-microsecond) and high frequency (kHz range) of the burst enabled reduction of the muscle contractions to barely detectable level while the proposed applicators ensured predominantly topical treatment, without electroporation of deeper tissues. The results of our study have direct application for treatment of wounds and ulcers when chemical treatment is no longer effective.
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Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania.
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Emilija Perminaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Robertas Čėsna
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Eglė Lastauskienė
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius, Lithuania
| | | | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Vilnius, Lithuania
| | | | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
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12
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Novickij V, Zinkevičienė A, Valiulis J, Švedienė J, Paškevičius A, Lastauskienė E, Markovskaja S, Novickij J, Girkontaitė I. Different permeabilization patterns of splenocytes and thymocytes to combination of pulsed electric and magnetic field treatments. Bioelectrochemistry 2018; 122:183-190. [DOI: 10.1016/j.bioelechem.2018.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
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13
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Novickij V, Švedienė J, Paškevičius A, Markovskaja S, Lastauskienė E, Zinkevičienė A, Girkontaitė I, Novickij J. Induction of Different Sensitization Patterns of MRSA to Antibiotics Using Electroporation. Molecules 2018; 23:molecules23071799. [PMID: 30037022 PMCID: PMC6100619 DOI: 10.3390/molecules23071799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 01/04/2023] Open
Abstract
Treatment of bacteria-associated infections is complicated and antibiotic treatment alone is often inadequate to overcome biofilm infections. Physical methods allow overcoming this problem and propose solutions that are non-dependent on drug resistance. In this work, we investigated the feasibility of pulsed electric fields for sensitization of MRSA to common antibiotics. We analyzed the efficacy of inactivation of methicillin-resistant Staphylococcus aureus in 5–20 kV/cm electric field separately and in combination with gentamicin, doxycycline, ciprofloxacin, sulfamethoxazole, and vancomycin. Combined treatment allowed using up to 1000-fold smaller concentrations of antibiotics to induce the same inactivation of S. aureus.
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Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227 Vilnius, Lithuania.
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412 Vilnius, Lithuania.
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412 Vilnius, Lithuania.
- Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santariškių Clinics, Santariskiu g. 2, 08406 Vilnius, Lithuania.
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų st. 49, 08406 Vilnius, Lithuania.
| | - Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Vilnius University, Sauletekio al. 7, 10257 Vilnius, Lithuania.
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių st. 5, 08406 Vilnius, Lithuania.
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių st. 5, 08406 Vilnius, Lithuania.
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227 Vilnius, Lithuania.
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14
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Ložienė K, Švedienė J, Paškevičius A, Raudonienė V, Sytar O, Kosyan A. Influence of plant origin natural α-pinene with different enantiomeric composition on bacteria, yeasts and fungi. Fitoterapia 2018; 127:20-24. [PMID: 29689330 DOI: 10.1016/j.fitote.2018.04.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/14/2018] [Accepted: 04/20/2018] [Indexed: 11/17/2022]
Abstract
Although the nature-identical chemical compounds are cheaper, they not always repeat biological activity of plant origin natural chemical compounds, often react allergies and resistance of microorganisms. The aim of this study was to investigate effects of Juniperus communis origin α-pinene with different enantiomeric composition on bacteria, yeasts and fungi. Results showed that different enantiomeric composition of α-pinene have different activities on microorganisms: essential oil with (1S)-(-) ≈ (1R)-(+) enantiomeric composition of α-pinene influenced on some microorganisms stronger than essential oil with (1S)-(-) < (1R)-(+) enantiomeric composition of α-pinene; the pure natural α-pinene with enantiomeric composition S < R more strongly inhibited growth of investigated bacteria and Candida yeasts, α-pinene with enantiomeric composition S ≈ R - growth of Trichophyton and Aspergillus. (1S)-(-) and (1R)-(+) enantiomeric forms of α-pinene can have also different synergistic effects with other compounds of essential oil. The results of study showed that the same amount of α-pinene with different enantiomeric composition can have diverse antimicrobial potential due different specific interactions with other chemical compounds of essential oil. Therefore, it is very important to determine and present the enantiomeric composition of those plant origin compounds, which are characterized by enantiomerisation, during the course of research of biological activities of natural plant products (essential oils and other) and their isolated compounds.
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Affiliation(s)
- Kristina Ložienė
- Nature Research Centre, Institute of Botany, Vilnius, Lithuania; Department of Pathology, Forensic Medicine and Pharmacology, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania.
| | | | - Algimantas Paškevičius
- Nature Research Centre, Institute of Botany, Vilnius, Lithuania; Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
| | - Vita Raudonienė
- Nature Research Centre, Institute of Botany, Vilnius, Lithuania
| | - Oksana Sytar
- SRL "Physiological bases of plant productivity", Educational and Scientific Center "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Anatoliy Kosyan
- SRL "Physiological bases of plant productivity", Educational and Scientific Center "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
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15
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Novickij V, Švedienė J, Paškevičius A, Markovskaja S, Girkontaitė I, Zinkevičienė A, Lastauskienė E, Novickij J. Pulsed electric field-assisted sensitization of multidrug-resistant Candida albicans to antifungal drugs. Future Microbiol 2017; 13:535-546. [PMID: 29227694 DOI: 10.2217/fmb-2017-0245] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM Determine the influence of pH on the inactivation efficiency of Candida albicans in pulsed electric fields (PEF) and evaluate the possibilities for sensitization of a drug-resistant strain to antifungal drugs. MATERIALS & METHODS The effects of PEF (2.5-25 kVcm-1) with fluconazole, terbinafine and naftifine were analyzed at a pH range of 3.0-9.0. Membrane permeabilization was determined by flow cytometry and propidium iodide. RESULTS PEF induced higher inactivation of C. albicans at low pH and increased sensitivity to terbinafine and naftifine to which the strain was initially resistant. Up to 5 log reduction in cell survival was achieved. CONCLUSION A proof of concept that electroporation can be used to sensitize drug-resistant microorganisms was presented, which is promising for treating biofilm-associated infections.
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Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko St 41, 03227 Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos St 2, 08412 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos St 2, 08412 Vilnius, Lithuania.,Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santariškių Clinics, Santariškių St 2, 08661 Vilnius, Lithuania
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų St 49, 08406 Vilnius, Lithuania
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių St 5, 08406 Vilnius, Lithuania
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių St 5, 08406 Vilnius, Lithuania
| | - Eglė Lastauskienė
- Department of Microbiology & Biotechnology, Vilnius University, Sauletekio al. 7, 10257 Vilnius, Lithuania
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko St 41, 03227 Vilnius, Lithuania
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16
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Novickij V, Švedienė J, Paškevičius A, Novickij J. In vitro evaluation of nanosecond electroporation against Trichophyton rubrum with or without antifungal drugs and terpenes. MYCOSCIENCE 2017. [DOI: 10.1016/j.myc.2017.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Novickij V, Lastauskienė E, Švedienė J, Grainys A, Staigvila G, Paškevičius A, Girkontaitė I, Zinkevičienė A, Markovskaja S, Novickij J. Membrane Permeabilization of Pathogenic Yeast in Alternating Sub-microsecond Electromagnetic Fields in Combination with Conventional Electroporation. J Membr Biol 2017; 251:189-195. [PMID: 28238117 DOI: 10.1007/s00232-017-9951-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/15/2017] [Indexed: 12/14/2022]
Abstract
Recently, a novel contactless treatment method based on high-power pulsed electromagnetic fields (PEMF) was proposed, which results in cell membrane permeabilization effects similar to electroporation. In this work, a new PEMF generator based on multi-stage Marx circuit topology, which is capable of delivering 3.3 T, 0.19 kV/cm sub-microsecond pulses was used to permeabilize pathogenic yeast Candida albicans separately and in combination with conventional square wave electroporation (8-17 kV/cm, 100 μs). Bursts of 10, 25, and 50 PEMF pulses were used. The yeast permeabilization rate was evaluated using flow cytometric analysis and propidium iodide (PI) assay. A statistically significant (P < 0.05) combinatorial effect of electroporation and PEMF treatment was detected. Also the PEMF treatment (3.3 T, 50 pulses) resulted in up to 21% loss of yeast viability, and a dose-dependent additive effect with pulsed electric field was observed. As expected, increase of the dB/dt and subsequently the induced electric field amplitude resulted in a detectable effect solely by PEMF, which was not achievable before for yeasts in vitro.
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Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania.
| | - Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Vilnius University, Sauletekio al. 7, 10257, Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412, Vilnius, Lithuania
| | - Audrius Grainys
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
| | - Gediminas Staigvila
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių st. 5, 08406, Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių st. 5, 08406, Vilnius, Lithuania
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų st. 49, 08406, Vilnius, Lithuania
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
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18
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Sytar O, Švedienė J, Ložienė K, Paškevičius A, Kosyan A, Taran N. Antifungal properties of hypericin, hypericin tetrasulphonic acid and fagopyrin on pathogenic fungi and spoilage yeasts. Pharm Biol 2016; 54:3121-3125. [PMID: 27564138 DOI: 10.1080/13880209.2016.1211716] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT The role of hypericin-mediated photodynamic antimicrobial properties on pathogenic fungi and photodynamic therapy for human cancer cells is known. Antifungal properties of Hypericum perforatum L. (Hypericaceae) and Fagopyrum esculentum Moench. (Polygonaceae) extracts were also studied. The different polarities of solvents can cause complication in the identification of antifungal effects of separate biologically active compounds. In recent experimental work, we compared antifungal properties of purified hypericin, hypericin tetrasulphonic acid (hypericin + S) and fagopyrin, which is analogue of hypericin. OBJECTIVE The antifungal properties of aromatic polyketide derivatives such as hypericin, hypericin + S and fagopyrin on the selected pathogenic fungi and spoilage yeasts have been studied. MATERIALS AND METHODS The antifungal properties of hypericin, hypericin + S and fagopyrin were determined using the broth microdilution method against a set of pathogenic fungi and spoilage yeasts including: Microsporum canis, Trichophyton rubrum, Fusarium oxysporum, Exophiala dermatitidis, Candida albicans, Kluyveromyces marxianus, Pichia fermentans and Saccharomyces cerevisiae. The tested concentrations of hypericin, hypericin + S and fagopyrin ranged from 750 to 0.011 μg/mL and MIC values were evaluated after 48 h incubation at 30 °C. RESULTS The results confirm different antifungal properties of hypericin, hypericin + S and fagopyrin on the selected pathogenic fungi and spoilage yeasts. For pathogenic fungi, the minimum inhibitory concentrations of hypericin ranged 0.18-46.9 μg/mL, hypericin + S 0.18-750 μg/mL and fagopyrin 11.7-46.9 μg/mL. For spoilage yeasts, the MICs of hypericin and hypericin + S ranged 0.18-46.9 and 0.011-0.73 μg/mL, respectively. DISCUSSION AND CONCLUSION The results obtained herein indicate that various chemical structures of hypericin, hypericin + S and fagopyrin can develop different antifungal properties.
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Affiliation(s)
- Oksana Sytar
- a Department of Plant Physiology , Institute of Biology, Kiev National University of Taras Shevchenko , Kiev , Ukraine
| | - Jurgita Švedienė
- b Nature Research Centre, Institute of Botany , Vilnius , Lithuania
| | - Kristina Ložienė
- b Nature Research Centre, Institute of Botany , Vilnius , Lithuania
| | - Algimantas Paškevičius
- b Nature Research Centre, Institute of Botany , Vilnius , Lithuania
- c Laboratory of Microbiology, Centre of Laboratory Medicine , Vilnius University Hospital Santariškių klinikos , Vilnius , Lithuania
| | - Anatolij Kosyan
- a Department of Plant Physiology , Institute of Biology, Kiev National University of Taras Shevchenko , Kiev , Ukraine
| | - Natalija Taran
- a Department of Plant Physiology , Institute of Biology, Kiev National University of Taras Shevchenko , Kiev , Ukraine
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19
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Novickij V, Grainys A, Švedienė J, Paškevičius A, Novickij J. Controlled inactivation of Trichophyton rubrum using shaped electrical pulse bursts: Parametric analysis. Biotechnol Prog 2016; 32:1056-60. [PMID: 27071774 DOI: 10.1002/btpr.2276] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 04/07/2016] [Indexed: 01/15/2023]
Abstract
The dermatophytes infect the skin by adherence to the epidermis followed by germination, growth, and penetration of the fungal hyphae within the cells. The aim of this study was to investigate the efficacy of the pulsed electric fields (PEF) of controlled inactivation of Trichophyton rubrum (ATCC 28188). In this work, we have used bursts of the square wave PEF pulses of different intensity (10-30 kV/cm) to induce the irreversible inactivation in vitro. The electric field pulses of 50 µs and 100 µs have been generated in bursts of 5, 10, and 20 pulses with repetition frequency of 1 Hz. The dynamics of the inactivation using different treatment parameters were studied and the inactivation map for the T. rubrum has been defined. Further, the combined effect of PEF with the antifungal agents itraconazole, terbinafine, and naftifine HCl was investigated. It has been demonstrated that the combined effect results in the full inactivation of T. rubrum colony. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1056-1060, 2016.
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Affiliation(s)
- Vitalij Novickij
- High Magnetic Field Inst., Vilnius Gediminas Technical University, Vilnius, 03227, Lithuania
| | - Audrius Grainys
- High Magnetic Field Inst., Vilnius Gediminas Technical University, Vilnius, 03227, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Vilnius, 08412, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Vilnius, 08412, Lithuania.,Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santariškių Clinics, Vilnius, Lithuania
| | - Jurij Novickij
- High Magnetic Field Inst., Vilnius Gediminas Technical University, Vilnius, 03227, Lithuania
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20
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Affiliation(s)
- Vitalij Novickij
- Faculty of Electronics, High Magnetic Field Institute, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Audrius Grainys
- Faculty of Electronics, High Magnetic Field Institute, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Paulius Butkus
- Faculty of Electronics, Department of Electrical Engineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Sonata Tolvaišienė
- Faculty of Electronics, Department of Electrical Engineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Institute of Botany, Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Institute of Botany, Vilnius, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, High Magnetic Field Institute, Vilnius Gediminas Technical University, Vilnius, Lithuania
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21
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Repečkienė J, Švedienė J, Paškevičius A, Tekorienė R, Raudonienė V, Gudeliūnaitė E, Baltrėnas P, Misevičius A. Succession of microorganisms in a plate-type air treatment biofilter during filtration of various volatile compounds. Environ Technol 2015; 36:881-889. [PMID: 25220430 DOI: 10.1080/09593330.2014.965227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Changes in the number and species diversity of cultivable microorganisms in a newly developed plate-type biofilter during filtration of various volatile pollutants were studied. The novelty of the investigation is the monitoring of microorganism succession in different parts of biofilter plates with original packing material consisting of birch fibre and needle-punched non-woven fabric. It was shown that the largest number of fungi and yeasts develop on the top and middle, while bacteria develop on the bottom and middle parts of plates. The number of microorganisms depends on the origin of the pollutant, the pH and temperature inside the biofilter and the moisture of the porous plates. The statistically significant correlation between the number of microorganisms and inlet concentration of acetone was estimated, while ammonia showed a negative influence on yeast distribution. Paecilomyces variotii, Rhodotorula mucilaginosa and Bacillus subtilis were the most common organisms found during filtration of all examined volatiles; however, some differences of microbial communities in different parts of the biofilter plates and filtrated volatile compounds were obtained.
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Affiliation(s)
- Jūratė Repečkienė
- a Laboratory of Biodeterioration Research, Institute of Botany , Nature Research Centre , Akademijos Str. 2, Vilnius LT-08406 , Lithuania
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Jagminas A, Žalnėravičius R, Rėza A, Paškevičius A, Selskienė A. Design, optical and antimicrobial properties of extremely thin alumina films colored with silver nanospecies. Dalton Trans 2015; 44:4512-9. [DOI: 10.1039/c4dt03644a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extremely thin alumina films gold-colored by silver nm-scaled species possess a low refractive index and antimicrobial efficiency.
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Affiliation(s)
- A. Jagminas
- State Research Institute Center for Physical Sciences and Technology
- Institute of Chemistry
- LT-01108 Vilnius
- Lithuania
| | - R. Žalnėravičius
- State Research Institute Center for Physical Sciences and Technology
- Institute of Chemistry
- LT-01108 Vilnius
- Lithuania
| | - A. Rėza
- State Research Institute Center for Physical Sciences and Technology
- Institute of Chemistry
- LT-01108 Vilnius
- Lithuania
| | - A. Paškevičius
- Institute of Botany of Nature Research Centre
- LT-08406 Vilnius
- Lithuania
| | - A. Selskienė
- State Research Institute Center for Physical Sciences and Technology
- Institute of Chemistry
- LT-01108 Vilnius
- Lithuania
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Novickij V, Grainys A, Švedienė J, Markovskaja S, Paškevičius A, Novickij J. Microsecond pulsed magnetic field improves efficacy of antifungal agents on pathogenic microorganisms. Bioelectromagnetics 2014; 35:347-53. [DOI: 10.1002/bem.21848] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 01/28/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Vitalij Novickij
- High Magnetic Field Laboratory; Vilnius Gediminas Technical University; Vilnius Lithuania
| | - Audrius Grainys
- High Magnetic Field Laboratory; Vilnius Gediminas Technical University; Vilnius Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research; Institute of Botany of Nature Research Centre; Vilnius Lithuania
| | - Svetlana Markovskaja
- Laboratory of Mycology; Institute of Botany of Nature Research Centre; Vilnius Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research; Institute of Botany of Nature Research Centre; Vilnius Lithuania
| | - Jurij Novickij
- High Magnetic Field Laboratory; Vilnius Gediminas Technical University; Vilnius Lithuania
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Paškevičius A, Švedienė J. Distribution and species composition of causative agents of dermatophytoses in Lithuania. Acta Dermatovenerol Croat 2013; 21:99-104. [PMID: 24001417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aim of the investigation was to determine diversity of the causative agents of dermatophytoses and characterize the epidemiological situation in Lithuania in 2001-2010. During this period, dermatophytes showed a tendency to decline. The following dermatophytes were isolated: Trichophyton (T.) Malamsten, Microsporum (M.) Gruby and Epidermophyton E. Lang. The number of nondermatophytes increased. At the beginning of the investigation, nondermatophytes accounted for 3.4%, whereas at the end their number grew up to 35.9%. Among the agents of dermatomycosis, the incidence of yeasts was observed to have a growing tendency. Among dermatophytes, T. rubrum was the most common pathogen, which in 2001 amounted to 55.7% and in 2010 to only 11.0%. Among the Microsporum species, M. canis and M. gypseum were detected. A small number of Epidermophyton species were observed in 2001-2003, which accounted for 0.2%-0.8% of all isolates. Tinea unguium (75.5%) was the most common type of dermatophytosis, followed by tinea capitis (11.7%), tinea corporis (9.2%) and tinea pedis (1.2%). In 2001-2010, dermatophytes showed a decreasing tendency, whereas the incidence of Candida yeasts and other causative agents of dermatomycosis greatly increased.
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Affiliation(s)
- Algimantas Paškevičius
- Institute of Botany, Nature Research Centre, Laboratory of Biodeterioration Research, Žaliųjų Ežerų Str. 49, LT-08406 Vilnius, Lithuania.
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Šalomskiené J, Paškevičius A, Mačioniené I. Monitoring yeast species in quarg, quarg products and their production environment during the manufacturing process. Acta Alimentaria 2003. [DOI: 10.1556/aalim.32.2003.3.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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