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Miluski P, Markowski K, Kochanowicz M, Łodziński M, Pisarski WA, Pisarska J, Kuwik M, Leśniak M, Dorosz D, Żmojda J, Ragiń T, Dorosz J. Broadband Profiled Eye-Safe Emission of LMA Silica Fiber Doped with Tm 3+/Ho 3+ Ions. Materials (Basel) 2023; 16:7679. [PMID: 38138821 PMCID: PMC10744985 DOI: 10.3390/ma16247679] [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] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
LMA (Large Mode Area) optical fibers are presently under active investigation to explore their potential for generating laser action or broadband emission directly within the optical fiber structure. Additionally, a wide mode profile significantly reduces the power distribution density in the fiber cross-section, minimizing the power density, photodegradation, or thermal damage. Multi-stage deposition in the MCVD-CDT system was used to obtain the structural doping profile of the LMA fiber multi-ring core doped with Tm3+ and Tm3+/Ho3+ layer profiles. The low alumina content (Al2O3: 0.03wt%) results in low refractive index modification. The maximum concentrations of the lanthanide oxides were Tm2O3: 0.18wt % and Ho2O3: 0.15wt%. The double-clad construction of optical fiber with emission spectra in the eye-safe spectral range of (1.55-2.10 µm). The calculated LP01 Mode Field Diameter (MFD) was 69.7 µm (@ 2000 nm, and 1/e of maximum intensity), which confirms LMA fundamental mode guiding conditions. The FWHM and λmax vs. fiber length are presented and analyzed as a luminescence profile modification. The proposed structured optical fiber with a ring core can be used in new broadband optical radiation source designs.
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Affiliation(s)
- Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
| | - Krzysztof Markowski
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
| | - Marek Łodziński
- Faculty of Geology, Geophysics and Environment Protection, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland;
| | - Wojciech A. Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (W.A.P.); (J.P.); (M.K.)
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (W.A.P.); (J.P.); (M.K.)
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (W.A.P.); (J.P.); (M.K.)
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (M.L.); (D.D.)
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (M.L.); (D.D.)
| | - Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
| | - Tomasz Ragiń
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland; (K.M.); (M.K.); (J.Ż.); (T.R.); (J.D.)
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Markiewicz J, Kochanowicz M, Ragiń T, Sadowska K, Żmojda J, Miluski P, Dorosz J, Kuwik M, Pisarski WA, Pisarska J, Leśniak M, Dorosz D. Broadband 1.5-2.1 µm emission in gallo-germanate dual-core optical fiber co-doped with Er 3+ and Yb 3+/Tm 3+/Ho 3. Opt Express 2023; 31:28850-28858. [PMID: 37710695 DOI: 10.1364/oe.496574] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/19/2023] [Indexed: 09/16/2023]
Abstract
The near-infrared emission in fabricated low-phonon energy, gallo-germanate glass, and double-core optical fiber has been investigated. Broadband amplified spontaneous emission (ASE) was obtained in optical fiber with cores doped with: 1st - 0.2Er2O3 and 2nd - 0.5Yb2O3/0.4Tm2O3/0.05Ho2O3 as a result of the superposition of emission bands from both cores corresponding to the Er3+:4I13/2→4I15/2 (1st core) and Tm3+:3F4 → 3H6/Ho3+:5I7 → 5I8 (2nd core) transitions. The effect of fiber length and pump wavelength on the near-infrared amplified spontaneous emission (ASE) properties has been analyzed for 1 m and 5 m optical fiber. The widest emission bandwidth (355 nm - 3 dB level) was obtained for a 5 m length optical fiber pumped by a 940 nm laser.
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Miluski P, Markowski K, Kochanowicz M, Łodziński M, Żmojda J, Pisarski WA, Pisarska J, Kuwik M, Leśniak M, Dorosz D, Ragiń T, Askirka V, Dorosz J. Tm 3+/Ho 3+ profiled co-doped core area optical fiber for emission in the range of 1.6-2.1 µm. Sci Rep 2023; 13:13963. [PMID: 37633975 PMCID: PMC10460410 DOI: 10.1038/s41598-023-41097-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/22/2023] [Indexed: 08/28/2023] Open
Abstract
Double-clad optical fiber with a multi-ring core profile doped with thulium and holmium fabricated by Modified Chemical Vapor Deposition Chelate Doping Technology (MCVD-CDT) is presented. The measured Tm2O3 and Ho2O3 complexes' weight concentrations were 0.5% and 0.2% respectively. Numerical analyses show weakly guiding conditions and 42.2 µm of MFD LP01 at 2000 nm. The low NA numerical aperture (NA = 0.054) was obtained for the 20/250 µm core/cladding ratio optical fiber construction. The emission spectra in the range of 1.6-2.1 µm vs. the fiber length are presented. The full width at half maximum (FWHM) decreases from 318 to 270 nm for fiber lengths from 2 to 10 m. The presented fiber design is of interest for the development of new construction of optical fibers operating in the eye-safe spectral range.
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Affiliation(s)
- Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland.
| | - Krzysztof Markowski
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Marek Łodziński
- Faculty of Geology, Geophysics and Environment Protection, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059, Krakow, Poland
| | - Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Wojciech A Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007, Katowice, Poland
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007, Katowice, Poland
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007, Katowice, Poland
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av, 30-059, Krakow, Poland
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av, 30-059, Krakow, Poland
| | - Tomasz Ragiń
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Valiantsin Askirka
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
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Sadowska K, Ragiń T, Kochanowicz M, Miluski P, Dorosz J, Leśniak M, Dorosz D, Kuwik M, Pisarska J, Pisarski W, Rećko K, Żmojda J. Analysis of Excitation Energy Transfer in LaPO 4 Nanophosphors Co-Doped with Eu 3+/Nd 3+ and Eu 3+/Nd 3+/Yb 3+ Ions. Materials (Basel) 2023; 16:1588. [PMID: 36837218 PMCID: PMC9965427 DOI: 10.3390/ma16041588] [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: 12/14/2022] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Nanophosphors are widely used, especially in biological applications in the first and second biological windows. Currently, nanophosphors doped with lanthanide ions (Ln3+) are attracting much attention. However, doping the matrix with lanthanide ions is associated with a narrow luminescence bandwidth. This paper describes the structural and luminescence properties of co-doped LaPO4 nanophosphors, fabricated by the co-precipitation method. X-ray structural analysis, scanning electron microscope measurements with EDS analysis, and luminescence measurements (excitation 395 nm) of LaPO4:Eu3+/Nd3+ and LaPO4:Eu3+/Nd3+/Yb3+ nanophosphors were made and energy transfer between rare-earth ions was investigated. Tests performed confirmed the crystal structure of the produced phosphors and deposition of rare-earth ions in the structure of LaPO4 nanocrystals. In the range of the first biological window (650-950 nm), strong luminescence bands at the wavelengths of 687 nm and 698 nm (5D0 → 7F4:Eu3+) and 867 nm, 873 nm, 889 nm, 896 nm, and 907 nm (4F3/2 → 4I9/2:Nd3+) were observed. At 980 nm, 991 nm, 1033 nm (2F5/2 → 2F7/2:Yb3+) and 1048 nm, 1060 nm, 1073 nm, and 1080 nm (4F3/2 → 4I9/2:Nd3+), strong bands of luminescence were visible in the 950 nm-1100 nm range, demonstrating that energy transfer took place.
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Affiliation(s)
- Karolina Sadowska
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
| | - Tomasz Ragiń
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
| | - Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland
| | - Wojciech Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland
| | - Katarzyna Rećko
- Faculty of Physics, University of Bialystok, K. Ciołkowskiego 1L, 15-245 Bialystok, Poland
| | - Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland
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Pach-Zawada K, Leśniak M, Filipecka-Szymczyk K, Golis E, Sitarz M, Dorosz D, Filipecki J. Tellurite Glasses from the 70TeO 2-5XO-10P 2O 5-10ZnO-5PbF 2(X= Pb, Bi, Ti) System Doped Erbium Ions-The Influence of Erbium on the Structure and Physical Properties. Int J Mol Sci 2023; 24:ijms24043556. [PMID: 36834968 PMCID: PMC9961182 DOI: 10.3390/ijms24043556] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
In this article, we present research on the influence of erbium ions on the structure and magneto-optical properties of 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Pb, Bi, Ti) tellurite glass systems. Structural changes occurring in the glasses during doping with erbium ions were investigated using positron annihilation lifetime spectroscopy (PALS) and Raman spectroscopy. The X-ray diffraction (XRD) method was used to confirm the amorphous structure of the investigated samples. Based on the Faraday effect measurements and calculated values of Verdet constant, the magneto-optical properties of the glasses were determined.
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Affiliation(s)
- Katarzyna Pach-Zawada
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, Al. Armii Krajowej 13/15, 42-200 Czestochowa, Poland
| | - Magdalena Leśniak
- Faculty of Material Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Katarzyna Filipecka-Szymczyk
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, Al. Armii Krajowej 13/15, 42-200 Czestochowa, Poland
| | - Edmund Golis
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, Al. Armii Krajowej 13/15, 42-200 Czestochowa, Poland
| | - Maciej Sitarz
- Faculty of Material Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Dominik Dorosz
- Faculty of Material Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Jacek Filipecki
- Department of Experimental and Applied Physics, Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, Al. Armii Krajowej 13/15, 42-200 Czestochowa, Poland
- Correspondence:
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Pawcenis D, Leśniak M, Szumera M, Sitarz M, Profic-Paczkowska J. Effect of hydrolysis time, pH and surfactant type on stability of hydrochloric acid hydrolyzed nanocellulose. Int J Biol Macromol 2022; 222:1996-2005. [DOI: 10.1016/j.ijbiomac.2022.09.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/09/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022]
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Pawcenis D, Twardowska E, Leśniak M, Jędrzejczyk RJ, Sitarz M, Profic-Paczkowska J. TEMPO-oxidized cellulose for in situ synthesis of Pt nanoparticles. Study of catalytic and antimicrobial properties. Int J Biol Macromol 2022; 213:738-750. [PMID: 35690157 DOI: 10.1016/j.ijbiomac.2022.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 03/26/2022] [Revised: 05/20/2022] [Accepted: 06/05/2022] [Indexed: 11/28/2022]
Abstract
In this work, platinum nanoparticles (PtNPs) were synthesized by a modified polyol process using TEMPO-oxidized nanocellulose (TOCN) as a stabilizing and co-reducing agent. Different ratios of TOCN nanocellulose to Pt4+ ions were studied to establish the optimum stabilizing effect of PtNPs. The effect of different pH of aqueous TOCN suspensions on the morphology of PtNPs was also examined. It was proved that PtNPs can be obtained solely in the presence of TOCN without the use of an additional reducing agent or ethylene glycol. The morphology and structural properties of the nanocellulose‑platinum nanoparticles composites were assessed using spectroscopic, microscopic and diffraction techniques, The catalytic performance in 4-nitrophenol reduction was evaluated. Significant differences in reaction rate constants k were found depending on the pH of the TOCN suspension applied during Pt4+ reduction. The crucial effect of reaction conditions on PtNPs performance was confirmed in tests of antibacterial efficacy against E. coli.
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Affiliation(s)
- Dominika Pawcenis
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2 street, 30-387 Kraków, Poland.
| | - Ewelina Twardowska
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2 street, 30-387 Kraków, Poland
| | - Magdalena Leśniak
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Kraków, Poland
| | - Roman J Jędrzejczyk
- Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, Kraków, Poland
| | - Maciej Sitarz
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Kraków, Poland
| | - Joanna Profic-Paczkowska
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2 street, 30-387 Kraków, Poland
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Leśniak M, Mach G, Starzyk B, Sadowska K, Ragiń T, Żmojda J, Kochanowicz M, Kuwik M, Miluski P, Jimenez GL, Baranowska A, Dorosz J, Pisarski W, Pisarska J, Olejniczak Z, Dorosz D. The Effect of Fluorides (BaF 2, MgF 2, AlF 3) on Structural and Luminescent Properties of Er 3+-Doped Gallo-Germanate Glass. Materials (Basel) 2022; 15:5230. [PMID: 35955165 PMCID: PMC9369573 DOI: 10.3390/ma15155230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 01/05/2023]
Abstract
The effect of BaF2, MgF2, and AlF3 on the structural and luminescent properties of gallo-germanate glass (BGG) doped with erbium ions was investigated. A detailed analysis of infrared and Raman spectra shows that the local environment of erbium ions in the glass was influenced mainly by [GeO]4 and [GeO]6 units. Moreover, the highest number of non-bridging oxygens was found in the network of the BGG glass modified by MgF2. The 27Al MAS NMR spectrum of BGG glass with AlF3 suggests the presence of aluminum in tetra-, penta-, and octahedral coordination geometry. Therefore, the probability of the 4I13/2→4I15/2 transition of Er3+ ions increases in the BGG + MgF2 glass system. On the other hand, the luminescence spectra showed that the fluoride modifiers lead to an enhancement in the emission of each analyzed transition when different excitation sources are employed (808 nm and 980 nm). The analysis of energy transfer mechanisms shows that the fluoride compounds promote the emission intensity in different channels. These results represent a strong base for designing glasses with unique luminescent properties.
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Affiliation(s)
- Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (G.M.); (B.S.); (G.L.J.); (D.D.)
| | - Gabriela Mach
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (G.M.); (B.S.); (G.L.J.); (D.D.)
| | - Bartłomiej Starzyk
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (G.M.); (B.S.); (G.L.J.); (D.D.)
| | - Karolina Sadowska
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Tomasz Ragiń
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Gloria Lesly Jimenez
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (G.M.); (B.S.); (G.L.J.); (D.D.)
| | - Agata Baranowska
- Faculty of Mechanical Engineering, Bialystok University of Technology, 45C Wiejska Street, 15-351 Bialystok, Poland;
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (K.S.); (T.R.); (J.Ż.); (M.K.); (P.M.); (J.D.)
| | - Wojciech Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Zbigniew Olejniczak
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland;
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (G.M.); (B.S.); (G.L.J.); (D.D.)
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9
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Golonko P, Sadowska K, Ragiń T, Kochanowicz M, Miluski P, Dorosz J, Kuwik M, Pisarski W, Pisarska J, Leśniak M, Dorosz D, Żmojda J. Crystallization Mechanism and Optical Properties of Antimony-Germanate-Silicate Glass-Ceramic Doped with Europium Ions. Materials (Basel) 2022; 15:ma15113797. [PMID: 35683100 PMCID: PMC9181671 DOI: 10.3390/ma15113797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/22/2022] [Accepted: 05/24/2022] [Indexed: 02/05/2023]
Abstract
Glass-ceramic is semi-novel material with many applications, but it is still problematic in obtaining fibers. This paper aims to develop a new glass-ceramic material that is a compromise between crystallization, thermal stability, and optical properties required for optical fiber technology. This compromise is made possible by an alternative method with a controlled crystallization process and a suitable choice of the chemical composition of the core material. In this way, the annealing process is eliminated, and the core material adopts a glass-ceramic character with high transparency directly in the drawing process. In the experiment, low phonon antimony-germanate-silicate glass (SGS) doped with Eu3+ ions and different concentrations of P2O5 were fabricated. The glass material crystallized during the cooling process under conditions similar to the drawing processes'. Thermal stability (DSC), X-ray photo analysis (XRD), and spectroscopic were measured. Eu3+ ions were used as spectral probes to determine the effect of P2O5 on the asymmetry ratio for the selected transitions (5D0 → 7F1 and 5D0 → 7F2). From the measurements, it was observed that the material produced exhibited amorphous or glass-ceramic properties, strongly dependent on the nucleator concentration. In addition, the conducted study confirmed that europium ions co-form the EuPO4 structure during the cooling process from 730 °C to room temperature. Moreover, the asymmetry ratio was changed from over 4 to under 1. The result obtained confirms that the developed material has properties typical of transparent glass-ceramic while maintaining high thermal stability, which will enable the fabrication of fibers with the glass-ceramic core.
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Affiliation(s)
- Piotr Golonko
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Karolina Sadowska
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Tomasz Ragiń
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Wojciech Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (M.L.); (D.D.)
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (M.L.); (D.D.)
| | - Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (P.G.); (K.S.); (T.R.); (M.K.); (P.M.); (J.D.)
- Correspondence:
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Sztajerowska J, Pajurek-Dudek J, Siarkowska I, Modzelewski J, Leśniak M, Kajdy A, Baran A, Rabijewski M. 439 Cpur at labor induction for prediction of adverse perinatal outcome – A pilot study. Eur J Obstet Gynecol Reprod Biol 2022. [DOI: 10.1016/j.ejogrb.2021.11.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dudek M, Adamczyk B, Grzywacz P, Lach R, Sitarz M, Leśniak M, Gajek M, Mech K, Wilk M, Rapacz-Kmita A, Ziąbka M, Dudek P. The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells. Materials (Basel) 2021; 14:6755. [PMID: 34832157 PMCID: PMC8623907 DOI: 10.3390/ma14226755] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/24/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022]
Abstract
The comprehensive results regarding the physicochemical properties of carbonaceous materials that are obtained from pistachio shells support their usage as solid fuels to supply direct carbon solid oxide fuel cells (DC-SOFCs). The influence of preparation conditions on variations in the chemical composition, morphology of the biochar powders, and degree of graphitization of carbonaceous materials were investigated. Based on structural investigations (X-ray diffraction analysis and Raman spectroscopy), it was observed that disordered carbon particles developed during the application of thermal treatments. The use of X-ray fluorescence enabled a comparative analysis of the chemical composition of the inorganic matter in biocarbon-based samples. Additionally, the gasification of carbonaceous-based samples vs. time at a temperature of 850 °C was investigated in a H2O or CO2 gas atmosphere. The analysis demonstrated the conversion rate of biochar obtained from pistachio shells to H2, CH4 and CO during steam gasification. The electrochemical investigations of the DC-SOFCs that were supplied with biochars obtained from pistachio shells were characterized by satisfactory values for the current and power densities at a temperature range of 700-850 °C. However, a higher power output of the DC-SOFCs was observed when CO2 was introduced to the anode chamber. Therefore, the impact of the Boudouard reaction on the performance of DC-SOFCs was confirmed. The chars that were prepared from pistachio shells were adequate for solid fuels for utilization in DC-SOFCs.
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Affiliation(s)
- Magdalena Dudek
- Faculty of Energy and Fuels, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (B.A.); (P.G.)
| | - Bartosz Adamczyk
- Faculty of Energy and Fuels, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (B.A.); (P.G.)
| | - Przemysław Grzywacz
- Faculty of Energy and Fuels, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (B.A.); (P.G.)
| | - Radosław Lach
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Maciej Sitarz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Marcin Gajek
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Krzysztof Mech
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Małgorzata Wilk
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Alicja Rapacz-Kmita
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Magdalena Ziąbka
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland; (R.L.); (M.S.); (M.L.); (M.G.); (A.R.-K.); (M.Z.)
| | - Piotr Dudek
- Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Av. Mickiewicza 30, 30-059 Kraków, Poland;
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Pach-Zawada K, Leśniak M, Filipecka K, Golis E, Yousef ES, Pawlik P, Dorosz D, Sitarz M, Filipecki J. Structural studies of tellurite glasses from the 70TeO2-5XO-10P2O5–10ZnO–5PbF2 system (X = Ba, W, Sr, Cd) doped with erbium ions. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.128787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wieczorek D, Kaczorowska E, Wiśniewska M, Madura ID, Leśniak M, Lipok J, Adamczyk-Woźniak A. Synthesis and Influence of 3-Amino Benzoxaboroles Structure on Their Activity against Candida albicans. Molecules 2020; 25:E5999. [PMID: 33352986 PMCID: PMC7766895 DOI: 10.3390/molecules25245999] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/09/2020] [Accepted: 12/15/2020] [Indexed: 11/16/2022] Open
Abstract
Benzoxaboroles emerged recently as molecules of high medicinal potential with Kerydin® (Tavaborole) and Eucrisa® (Crisaborole) currently in clinical practice as antifungal and anti-inflammatory drugs, respectively. Over a dozen of 3-amino benzoxaboroles, including Tavaborole's derivatives, have been synthetized and characterized in terms of their activity against Candida albicans as a model pathogenic fungus. The studied compounds broaden considerably the structural diversity of reported benzoxaboroles, enabling determination of the influence of the introduction of a heterocyclic amine, a fluorine substituent as well as the formyl group on antifungal activity of those compounds. The determined zones of the growth inhibition of examined microorganism indicate high diffusion of majority of the studied compounds within the applied media as well as their reasonable activity. The Minimum Inhibitory Concentration (MIC) values show that the introduction of an amine substituent in position "3" of the benzoxaborole heterocyclic ring results in a considerable drop in activity in comparison with Tavaborole (AN2690) as well as unsubstituted benzoxaborole (AN2679). In all studied cases the presence of a fluorine substituent at position para to the boron atom results in lower MIC values (higher activity). Interestingly, introduction of a fluorine substituent in the more distant piperazine phenyl ring does not influence MIC values. As determined by X-ray studies, introduction of a formyl group in proximity of the boron atom results in a considerable change of the boronic group geometry. The presence of a formyl group next to the benzoxaborole unit is also detrimental for activity against Candida albicans.
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Affiliation(s)
- Dorota Wieczorek
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland; (D.W.); (J.L.)
| | - Ewa Kaczorowska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (E.K.); (M.W.); (I.D.M.); (M.L.)
| | - Marta Wiśniewska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (E.K.); (M.W.); (I.D.M.); (M.L.)
| | - Izabela D. Madura
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (E.K.); (M.W.); (I.D.M.); (M.L.)
| | - Magdalena Leśniak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (E.K.); (M.W.); (I.D.M.); (M.L.)
| | - Jacek Lipok
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland; (D.W.); (J.L.)
| | - Agnieszka Adamczyk-Woźniak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (E.K.); (M.W.); (I.D.M.); (M.L.)
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Pisarski WA, Pisarska J, Kuwik M, Kochanowicz M, Żmojda J, Miluski P, Baranowska A, Dorosz J, Leśniak M, Dorosz D. Fluoroindate glasses co-doped with Pr 3+/Er 3+ for near-infrared luminescence applications. Sci Rep 2020; 10:21105. [PMID: 33273601 PMCID: PMC7712660 DOI: 10.1038/s41598-020-77943-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 07/24/2020] [Accepted: 11/18/2020] [Indexed: 11/09/2022] Open
Abstract
Fluoroindate glasses co-doped with Pr3+/Er3+ ions were synthesized and their near-infrared luminescence properties have been examined under selective excitation wavelengths. For the Pr3+/Er3+ co-doped glass samples several radiative and nonradiative relaxation channels and their mechanisms are proposed under direct excitation of Pr3+ and/or Er3+. The energy transfer processes between Pr3+ and Er3+ ions in fluoroindate glasses were identified. In particular, broadband near-infrared luminescence (FWHM = 278 nm) associated to the 1G4 → 3H5 (Pr3+), 1D2 → 1G4 (Pr3+) and 4I13/2 → 4I15/2 (Er3+) transitions of rare earth ions in fluoroindate glass is successfully observed under direct excitation at 483 nm. Near-infrared luminescence spectra and their decays for glass samples co-doped with Pr3+/Er3+ are compared to the experimental results obtained for fluoroindate glasses singly doped with rare earth ions.
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Affiliation(s)
- Wojciech A Pisarski
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007, Katowice, Poland.
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007, Katowice, Poland
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-007, Katowice, Poland
| | - Marcin Kochanowicz
- Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Jacek Żmojda
- Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Piotr Miluski
- Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Agata Baranowska
- Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Jan Dorosz
- Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland
| | - Magdalena Leśniak
- AGH University of Science and Technology, 30 Mickiewicza Av, 30-059, Krakow, Poland
| | - Dominik Dorosz
- AGH University of Science and Technology, 30 Mickiewicza Av, 30-059, Krakow, Poland
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15
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Żmojda J, Kochanowicz M, Miluski P, Golonko P, Baranowska A, Ragiń T, Dorosz J, Kuwik M, Pisarski W, Pisarska J, Szal R, Mach G, Starzyk B, Leśniak M, Sitarz M, Dorosz D. Luminescent Studies on Germanate Glasses Doped with Europium Ions for Photonic Applications. Materials (Basel) 2020; 13:E2817. [PMID: 32585869 PMCID: PMC7345945 DOI: 10.3390/ma13122817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 11/18/2022]
Abstract
Glass and ceramic materials doped with rare earth (RE) ions have gained wide interest in photonics as active materials for lasers, optical amplifiers, and luminescent sensors. The emission properties of RE-doped glasses depend on their chemical composition, but they can also be tailored by modifying the surrounding active ions. Typically, this is achieved through heat treatment (including continuous-wave and pulsed lasers) after establishing the ordering mechanisms in the particular glass-RE system. Within the known systems, silicate glasses predominate, while much less work relates to materials with lower energy phonons, which allow more efficient radiation sources to be constructed for photonic applications. In the present work, the luminescent and structural properties of germanate glasses modified with phosphate oxide doped with Eu3+ ions were investigated. Europium dopant was used as a "spectroscopic probe" in order to analyze the luminescence spectra, which characterizes the changes in the local site symmetries of Eu3+ ions. Based on the spectroscopic results, a strong influence of P2O5 content was observed on the excitation and luminescence spectra. The luminescence study of the most intense 5D0→7F2 (electric dipole) transition revealed that the increase in the P2O5 content leads to the linewidth reduction (from 15 nm to 10 nm) and the blue shift (~2 nm) of the emission peak. According to the crystal field theory, the introduction of P2O5 into the glass structure changes the splitting number of sublevels of the 5D0→7F1 (magnetic dipole) transition, confirming the higher polymerization of fabricated glass. The slightly different local environment of Eu3+ centers the results in a number of sites and causes inhomogeneous broadening of spectral lines. It was found that the local asymmetry ratio estimated by the relation of (5D0→7F2)/(5D0→7F1) transitions also confirms greater changes in local symmetry around Eu3+ ions. Our results indicate that modification of germanate glass by P2O5 allows control of their structural properties in order to functionalize the emissions for application as luminescent light sources and sensors.
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Affiliation(s)
- Jacek Żmojda
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (M.K.); (P.M.); (P.G.); (J.D.)
| | - Marcin Kochanowicz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (M.K.); (P.M.); (P.G.); (J.D.)
| | - Piotr Miluski
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (M.K.); (P.M.); (P.G.); (J.D.)
| | - Piotr Golonko
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (M.K.); (P.M.); (P.G.); (J.D.)
| | - Agata Baranowska
- Faculty of Mechanical Engineering, Bialystok University of Technology, 45C Wiejska Street, 15-351 Bialystok, Poland; (A.B.); (T.R.)
| | - Tomasz Ragiń
- Faculty of Mechanical Engineering, Bialystok University of Technology, 45C Wiejska Street, 15-351 Bialystok, Poland; (A.B.); (T.R.)
| | - Jan Dorosz
- Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska Street, 15-351 Bialystok, Poland; (M.K.); (P.M.); (P.G.); (J.D.)
| | - Marta Kuwik
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Wojciech Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland; (M.K.); (W.P.); (J.P.)
| | - Renata Szal
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
| | - Gabriela Mach
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
| | - Bartosz Starzyk
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
| | - Magdalena Leśniak
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
| | - Maciej Sitarz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland; (R.S.); (G.M.); (B.S.); (M.L.); (M.S.); (D.D.)
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16
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Jiménez GL, Falcony C, Szumera M, Jeleń P, Leśniak M, Kochanowicz M, Żmojda J, Dorosz D, Miluski P. Synthesis and characterization of poly(methyl methacrylate) co-doped with Tb(tmhd) 3 - Rhodamine B for luminescent optical fiber applications. Spectrochim Acta A Mol Biomol Spectrosc 2020; 229:117893. [PMID: 31836399 DOI: 10.1016/j.saa.2019.117893] [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] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/01/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
Currently, there is a growing interest in the development of multi-colored materials based on the combination of two or more systems (organic or inorganic) as a strategy to take advantage of their combined physical or chemical properties. These multi-colored materials have found potential applications as sensors, amplifiers, and optical fibers. In this work, the physical characteristics of poly(methyl methacrylate) (PMMA) doped with Terbium(III)-tris-(2,2,6,6-tetramethyl-3,5-heptanedionate) (Tb(tmhd)3) at 1.57-1.58 mmol and Rhodamine B (RhB) at different concentrations were analyzed. The emission obtained from these samples (multichromophoric samples) varied as function of RhB concentration due to an efficient energy transfer process (33-65%). The role of PMMA as inert matrix that assists in the recombination process was confirmed by FTIR and Raman spectra analysis. Moreover, an improvement in thermal resistance of the materials was observed due to the presence of the dopants during the polymerization process.
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Affiliation(s)
- G Lesly Jiménez
- Doctoral Program in Nanosciences and Nanotechnology, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Av., 07360 Mexico City, Mexico; Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland.
| | - Ciro Falcony
- Department of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Av., 07360 Mexico City, Mexico
| | - Magdalena Szumera
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Piotr Jeleń
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Magdalena Leśniak
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Marcin Kochanowicz
- Department of Power Engineering, Photonics and Lighting Technology, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D, 15-351, Poland
| | - Jacek Żmojda
- Department of Power Engineering, Photonics and Lighting Technology, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D, 15-351, Poland
| | - Dominik Dorosz
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Piotr Miluski
- Department of Power Engineering, Photonics and Lighting Technology, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D, 15-351, Poland
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Jiménez GL, Falcony C, Szumera M, Jeleń P, Leśniak M, Dorosz D, Żmojda J, Kochanowicz M, Miluski P. Photophysical characterization of polymeric fiber preforms using Tb(tmhd)3 and Eu(tmhd)3 as dopants during the polymerization process. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Bulanda M, Leśniak M, Szałkowska J, Madej W, Wojtyna A, Czarnobilska M, Bulanda D, Czarnobilska E. Component-resolved diagnosis (CRD) of food anaphylaxis. Folia Med Cracov 2019; 58:89-102. [PMID: 30467437 DOI: 10.24425/fmc.2018.124661] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Anaphylaxis is an increasing problem in public health. The food allergens (mainly milk, eggs, and peanuts) are the most frequent cause of anaphylaxis in children and youth. In order to define the cause of anaphylaxis, skin tests, the determination of the concentration of specific IgE in the blood and basophil activation test are conducted. In vitro tests are preferred due to the risk of allergic response during in vivo tests. Component-resolved diagnosis (CRD) is an additional tool in allergology, recommended in the third level of diagnostics when there are diagnostic doubts after the above mentioned tests have been carried out. The paper presents 3 cases of patients with anaphylactic response, and the application of CRD in these patients helped in planning the treatment. Patient 1 is a 4-year-old boy with diagnosed atopic dermatitis and bronchial asthma reported an anaphylactic shock at the age of seven months caused by cow's milk and the exacerbation of bronchial asthma after eating some fruit. Patient 2 is a 35-year-old woman who has had anaphylactic shock three times: in June 2015, 2016, and 2017 and associates these episodes with the consumption of dumplings with a caramel, bun, and the last episode took place during physical exertion few hours after eating waffle. Patient 3 is a 26-year-old man with one-time loss of consciousness after eating mixed nuts and drinking beer. CRD offers the possibility to conduct a detailed diagnostic evaluation of patients with a history of anaphylactic reaction.
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Affiliation(s)
- Małgorzata Bulanda
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Magdalena Leśniak
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Judyta Szałkowska
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Weronika Madej
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Agata Wojtyna
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Maria Czarnobilska
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Daniel Bulanda
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland
| | - Ewa Czarnobilska
- Department of Clinical and Environmental Allergology, Faculty of Medicine Jagiellonian University Medical College, Śniadeckich 10, Kraków, Poland.
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Pawcenis D, Chlebda DK, Jędrzejczyk RJ, Leśniak M, Sitarz M, Łojewska J. Preparation of silver nanoparticles using different fractions of TEMPO-oxidized nanocellulose. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sołtys M, Pisarska J, Leśniak M, Sitarz M, Pisarski WA. Structural and spectroscopic properties of lead phosphate glasses doubly doped with Tb 3+ and Eu 3+ ions. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bałan BJ, Skopińska-Różewska E, Skopiński P, Zdanowski R, Leśniak M, Kiepura A, Lewicki S. Morphometric abnormalities in the spleen of the progeny of mice fed epigallocatechin during gestation and nursing. Pol J Vet Sci 2017; 20:5-12. [PMID: 28525335 DOI: 10.1515/pjvs-2017-0001] [Citation(s) in RCA: 2] [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] [Indexed: 01/20/2023]
Abstract
It is very difficult to cure pregnant females suffering from infections, because of the risk which might occur during treatment by several, even herbal, medications. Many of these substances, among them extracts from plants, have antimicrobial, anti-inflammatory and immunostimulatory properties owing to their polyphenols content, but also may reveal unwanted effects on the fetal development because of their anti-angiogenic properties. The aim of the present study was to elucidate whether daily feeding pregnant and nursing mice 0.2 mg/kg epigallocatechin (EGC), previously recognized as angiogenesis inhibitor, may lead to abnormalities in morphology of spleen and in some parameters of immune function of their adult, 6-week old progeny. Morphometry of EGC offspring spleens revealed lower number of lymphatic nodules and their larger diameter than those found in the control offspring. Cellularity of spleens was lower in EGC offspring than in the controls. Cytometric analysis showed that this decline concerns lymphocytes with CD335 (p<0.001), CD19 (p<0.01) and CD4 (p<0.05) markers. No differences were observed in the humoral response to the immunization with SRBC, and in the proliferative response of splenocytes to mitogens PHA, ConA and LPS.
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Leśniak M, Partyka J, Pasiut K, Sitarz M. Microstructure study of opaque glazes from SiO2–Al2O3–MgO–K2O–Na2O system by variable molar ratio of SiO2/Al2O3 by FTIR and Raman spectroscopy. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zmojda J, Kochanowicz M, Miluski P, Leśniak M, Sitarz M, Pisarski W, Pisarska J, Dorosz D. Effect of GeO2 content on structural and spectroscopic properties of antimony glasses doped with Sm3+ ions. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lewicki S, Stankiewicz W, Skopińska-Różewska E, Wilczak J, Leśniak M, Suska M, Siwicki AK, Skopiński P, Zdanowski R. Spleen content of selected polyphenols, splenocytes morphology and function in mice fed Rhodiola kirilowii extracts during pregnancy and lactation. Pol J Vet Sci 2016; 18:847-55. [PMID: 26812829 DOI: 10.1515/pjvs-2015-0110] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
UNLABELLED The genus Rhodiola (Crassulaceae) consists of many species, growing mainly in Asia and traditionally used as adaptogens and anti-inflammatory drugs. In order to elaborate herbal immunostimulator which could be safely given to pregnant women, we performed a study on immunotropic effects of feeding pregnant and lactating mice Rhodiola kirilowii extracts. This paper presents the results of the first part of our study - spleen content of selected polyphenols, spleen cellularity, splenocytes phenotype and their response to mitogens. Experiments were performed on adult inbred females of Balb/c strain, mated with adult males. Females, since copulatory plug was noted, up to the 28-th day after delivery were fed daily with 20 mg/kg b.m. water (RKW) or hydro-alcoholic (RKW-A) extracts of Rhodiola kirilowii. RESULTS 1. Significantly lower proportion of pregnant mice in experimental groups than in the control. 2. Cellularity of spleen and flavonol quercetin spleen concentration were significantly lower in experimental groups in comparison to the controls. 3. Flavanols ((+)-catechin and epicatechin) levels were significantly higher in the spleens of experimental mice than in the controls. 4. Positive correlation between spleen cellularity and quercetin, and negative correlation between spleen cellularity and epicatechin content were observed. 5. Spleen mass and spleen lymphocytes phenotype and proliferation in RKW and RKW-A fed mice did not differ from the control. These results, together with suspicion of some embryo-toxicity, are worrying and eliminate the possibility of use Rhodiola kirilowii extracts for long-term treatment in pregnant females.
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Leśniak M, Juda M, Dyczek Ł, Czarnobilska M, Leśniak M, Czarnobilska E. [Diagnosis of food allergy]. Przegl Lek 2016; 73:245-249. [PMID: 27526429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Food allergy is most often linked to the type I allergic reaction, while IgE-dependent mechanism causes symptoms in only about 50% of patients. If symptoms are coming from other types of allergic reactions we do not have enough standardized diagnostic methods. The purpose of our review is to discuss the possibilities of diagnosis of food allergies. Regardless of the causal mechanism the interview has the most important role in the diagnosis, and the gold standard is a double blind placebo controlled food challenge. Additional tests that can be performed in suspected IgE-mediated reactions include: skin prick tests, specific IgE measurement, component-resolved diagnostics and in doubtful cases basophil activation test (BAT). Due to the fact that the spectrum of the symptoms of the type I food hypersensitivity can include potentially life-threatening reactions, diagnosis is often limited to in vitro assays. In these cases BAT may play an important role--in a recent publication, for the first time BAT reactivity reflected the allergy severity and BAT sensitivity reflected the threshold of response to allergen in an oral food challenge. Atopy patch tests are valuable diagnostic tool in suspected type IV food hypersensitivity, but due to the lack of standardization they are not used routinely. The cytotoxic test has been developed on the basis of the observations that leucopenia developing in the type II hypersensitivity reaction mechanism may be one of the symptoms of food allergy. Unfortunately its use is not justified in any method fulfill the criteria of controlled clinical trial. Food allergy can also develop in the type III hypersensitivity reaction, but there is lack of research supporting the role of IgG measurement in the detection of allergens responsible for symptoms. Each result of additional diagnostic tests before the introduction of food elimination should be confirmed in double-blind, placebo-controlled or open food challenge, because non proper diet is not only ineffective but also can be harmful.
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Partyka J, Sitarz M, Leśniak M, Gasek K, Jeleń P. The effect of SiO₂/Al₂O₃ ratio on the structure and microstructure of the glazes from SiO₂-Al₂O₃-CaO-MgO-Na₂O-K₂O system. Spectrochim Acta A Mol Biomol Spectrosc 2015; 134:621-630. [PMID: 25049171 DOI: 10.1016/j.saa.2014.06.068] [Citation(s) in RCA: 11] [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: 12/30/2013] [Revised: 05/15/2014] [Accepted: 06/09/2014] [Indexed: 06/03/2023]
Abstract
Ceramic glazes are commonly used to covering of the facing surface of ceramics ware. A well-chosen oxide composition and firing conditions of glazes causes significant improvement of technical parameters of ceramic products. Modern glazes are classified as glass-ceramic composites with different crystalline phases arising during firing. The presence of crystals in the glass matrix is influenced by many factors, especially by oxides molar composition. A crucial role is played by the molar ratio of SiO₂/Al₂O₃. In this work the six composition of glazes from SiO₂-Al₂O₃-CaO-MgO-Na₂O-K₂O system were examined. The only variable is the ratio of the silicon oxideto alumina at a constant content of other components: MgO, CaO, K₂O, Na₂O, ZnO. In order to determine the real phase composition of the obtained glazes research on fluorescence spectrometer (XRF) were done. For structural studies X-ray diffraction (XRD) and spectroscopic in the middle infrared (MIR) were performed. In order to determine the state of the surface (microstructure) research on the scanning electron microscope (SEM) with EDX. The research allowed to determine the influence of SiO₂/Al₂O₃ ratio on the structure and phase composition of glazes and the nature, and type of formed crystalline phases.
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Affiliation(s)
- Janusz Partyka
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Ceramics and Refractory Materials, Poland.
| | - Maciej Sitarz
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Silicate Chemistry and Macromolecular Compounds, Poland
| | - Magdalena Leśniak
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Silicate Chemistry and Macromolecular Compounds, Poland
| | - Katarzyna Gasek
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Ceramics and Refractory Materials, Poland
| | - Piotr Jeleń
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Silicate Chemistry and Macromolecular Compounds, Poland
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Leśniak M, Leśniak M, Czarnobilska E. [Usefulness of basophil activation test for the diagnosis of inhaled allergies]. Przegl Lek 2015; 72:773-778. [PMID: 27024959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Allergic diseases are important health problems. Medical history and results of additional tests play a crucial role in the diagnosis. Cytometric basophil activation test (BAT) is widely evaluated technique in inhaled, food, Hymenoptera venom and drugs allergy. The aim of our review is to systematize the available knowledge about possibilities of applying BAT, especially in the diagnosis of inhaled allergies. Basophil activation markers with proven sensitivity and specificity are CD63 and CD203c--each of them has its supporters and opponents among researchers. Use of the first one is more popular because of the direct relation of its appearance on the cell membrane of basophils with degranulation. The usefulness of BAT has been confirmed in the diagnosis of grass pollen, trees and house dust mites allergies in children and adults. BAT has a comparable to the routinely used tests sensitivity and higher (in most studies evaluated as 100%) specificity. The disadvantage of BAT that has been observed by some authors is "hyperreactivity" of basophils in atopic patients, leading to the appearance of false positives results. Basophil activation test seems to have a significant advantage over skin tests due to safety and lack of necessary to withdrawal antihistamines medications. Future research should focus on the use of BAT in diagnostically difficult cases and in monitoring of immunotherapy.
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Seniów J, Litwin M, Litwin T, Leśniak M, Członkowska A. New approach to the rehabilitation of post-stroke focal cognitive syndrome: effect of levodopa combined with speech and language therapy on functional recovery from aphasia. J Neurol Sci 2009; 283:214-8. [PMID: 19268976 DOI: 10.1016/j.jns.2009.02.336] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Few studies confirm that pharmacological treatments support post-stroke recovery. The purpose of this study was to determine whether the combination of levodopa with language therapy improves aphasia rehabilitation. METHODS We did a prospective, randomized, placebo-controlled, double-blind study in which twenty patients received levodopa before each language therapy session, and an additional 19 received a placebo. Language training was provided during a 3-week period. The efficacy variables were changes from baseline in Boston Diagnostic Aphasia Examination (BDAE) scores. RESULTS Patients receiving levodopa experienced greater language improvement in verbal fluency and repetition, compared to patients receiving placebo. Improvement was particularly distinct in patients with anterior lesions. CONCLUSIONS Supplementing language therapy with levodopa may improve recovery from aphasia in patients with frontal lesions.
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Affiliation(s)
- J Seniów
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland.
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Abstract
The conversion of testosterone into oestradiol by ovine Leydig cells cultured in vitro was studied using the non-steroidal aromatase inhibitor CGS 16949A. Additionally, aromatase activity was detected by immunohistochemical staining of cultured Leydig cells or cryosections. The cells were obtained from testes of Polish Mountain rams 5-6 months old (immature) or 12-15 months old (mature). Leydig cells were cultured alone (controls) or incubated for 6 h in the presence of testosterone. Aromatase inhibitor was then added to the cultures which were incubated for a further 18 h. After a 24-h incubation period, testosterone and oestradiol secretion were determined by testing the culture medium using radioimmunological methods. The addition of testosterone to the culture medium enhanced oestradiol synthesis, suggesting that exogenous testosterone could also be aromatized to oestradiol by ovine Leydig cells in vitro. In the presence of CGS 16949A, the conversion of testosterone to oestradiol was significantly suppressed in a dose-dependent manner. All Leydig cells obtained from testes of mature rams and stained immunohistochemically were positive for aromatase, whereas Leydig cells from immature males were negative. The localization of immunoreactive aromatase appeared to be dependent on the age of the donor ram. It is suggested therefore, that mature Leydig cells in the ram are not only the site for testosterone synthesis, they are also capable of converting androgens into oestrogens.
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Affiliation(s)
- B Bilińska
- Laboratory of Animal Endocrinology and Tissue Culture, Jagiellonian University, Kraków, Poland
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Leśniak M, Hankiewicz J. [Diagnostic value of enzyme examination in cerebrospinal fluid]. Neurol Neurochir Pol 1973; 7:73-8. [PMID: 4347879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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