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Király N, Zeleňák V, Zelenka T, Almáši M, Kuchár J. A New Member of the Metal-Porphyrin Frameworks Family: Structure, Physicochemical Properties, Hydrogen and Carbon Dioxide Adsorption. ChemistryOpen 2024; 13:e202300100. [PMID: 37943029 PMCID: PMC10853072 DOI: 10.1002/open.202300100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 10/02/2023] [Indexed: 11/10/2023] Open
Abstract
A novel holmium-based porous metal-porphyrin framework, {(H3 O+ )[Ho(H2 TPPS)]- ⋅ 4H2 O}n (denoted as UPJS-17), was synthesised by hydrothermal reaction. Structural analysis reveals, that UPJS-17 has a three-dimensional open framework. The framework is negatively charged and the negative charge is compensated by hydronium cation. The compound showed no N2 adsorption but the Ar, CO2 and H2 . From the argon adsorption, the surface area of ~150 m2 g-1 was determined. Carbon dioxide adsorption was measured at various temperatures (0, 10, 20, 30 and 40 °C) and the compound showed the highest adsorption capacity (at 0 °C) of 7.0 wt % of CO2 . From the carbon dioxide adsorption isotherms the isosteric heat of 56,5 kJ mol-1 was determined. Hydrogen adsorption was studied at -196 °C with hydrogen uptake of 2.1 wt % at 1 bar.
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Affiliation(s)
- Nikolas Király
- Department of Inorganic ChemistryP. J. Šafárik UniversityMoyzesova 11041 01KošiceSlovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic ChemistryP. J. Šafárik UniversityMoyzesova 11041 01KošiceSlovak Republic
| | - Tomáš Zelenka
- Department of ChemistryUniversity of Ostrava30. Dubna22 702 00OstravaCzech Republic
| | - Miroslav Almáši
- Department of Inorganic ChemistryP. J. Šafárik UniversityMoyzesova 11041 01KošiceSlovak Republic
| | - Juraj Kuchár
- Department of Inorganic ChemistryP. J. Šafárik UniversityMoyzesova 11041 01KošiceSlovak Republic
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Szűcsová J, Zeleňáková A, Beňová E, Nagy Ľ, Orendáč M, Huntošová V, Šoltésová M, Kohout J, Herynek V, Zeleňák V. Nanocomposite based on Gd 2O 3 nanoparticles and drug 5-fluorouracil as potential theranostic nano-cargo system. Heliyon 2023; 9:e20975. [PMID: 37928043 PMCID: PMC10623176 DOI: 10.1016/j.heliyon.2023.e20975] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
We have prepared silica matrix with hexagonal symmetry of pores (SBA-15) and loaded it with anticancer drug 5-Fluorouracil (5-FU) to promote it as a drug delivery system. Gd2O3 nanoparticles were incorporated into the matrix to enhance nanosystems applicability as contrast agent for MRI, thus enabled this nanocomposite to be used as multifunctional nano-based therapeutic agent. Drug release profile was obtained by UV-VIS spectroscopy, and it indicates the prolongated release of 5-FU during the first hours and the total release after 5 h. The cytotoxicity tests using MTT-assay, fluorescent microscopy, bright-field microscopy, and flow cytometry were carried out using human glioma U87 MG cells and SK BR 3 cells. The nanocomposite with anticancer drug (Gd2O3/SBA-15/5FU) showed toxic behaviour towards studied cells, unlike nanocomposite without drug (Gd2O3/SBA-15) that was non-toxic. Our drug delivery system was designed to minimalize negative effect of Gd3+ ions at magnetic resonance imaging and drug 5-FU on healthy cells due to their encapsulation into biocompatible silica matrix, so the Gd3+ ions are more stable (in comparison to chelates), lower therapeutic dose of 5-FU is needed and its prolongated release from silica pores was confirmed. Very good T1 contrast in MR images was observed even at low concentrations, thus this nanosystem can be potentially used as contrast imaging agent.
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Affiliation(s)
- Jaroslava Szűcsová
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 040 01 Kosice, Slovakia
| | - Adriana Zeleňáková
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 040 01 Kosice, Slovakia
| | - Eva Beňová
- Institute of Chemistry, P. J. Šafárik University, Moyzesova 11, 040 01 Kosice, Slovakia
| | - Ľuboš Nagy
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 040 01 Kosice, Slovakia
| | - Martin Orendáč
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 040 01 Kosice, Slovakia
- Department of Solid State Engineering, University of Chemistry & Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences, P. J. Šafárik University, Jesenná 5, 040 01 Kosice, Slovakia
| | - Mária Šoltésová
- Department of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 182 00 Prague, Czech Republic
| | - Jaroslav Kohout
- Department of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 182 00 Prague, Czech Republic
| | - Vít Herynek
- First Faculty of Medicine, Charles University, Center for Advanced Preclinical Imaging (CAPI), Salmovská 3, 120 00 Prague, Czech Republic
| | - Vladimír Zeleňák
- Institute of Chemistry, P. J. Šafárik University, Moyzesova 11, 040 01 Kosice, Slovakia
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Pevná V, Zauška Ľ, Benziane A, Vámosi G, Girman V, Miklóšová M, Zeleňák V, Huntošová V, Almáši M. Effective transport of aggregated hypericin encapsulated in SBA-15 nanoporous silica particles for photodynamic therapy of cancer cells. J Photochem Photobiol B 2023; 247:112785. [PMID: 37714000 DOI: 10.1016/j.jphotobiol.2023.112785] [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: 07/21/2023] [Revised: 08/25/2023] [Accepted: 09/08/2023] [Indexed: 09/17/2023]
Abstract
Photodynamic therapy (PDT) represents an interesting modality for the elimination of damaged biomaterials and cells. This treatment takes advantage of the photosensitizing properties of molecules that are active only when irradiated with light. In the present work, a dual property of hypericin, a hydrophobic molecule with high performance in photodiagnostics and photodynamic therapy, was exploited. The non-fluorescent and photodynamically inactive form of hypericin aggregates was loaded into the nanopores of SBA-15 silica particles. The synthesized particles were characterized by infrared spectroscopy, thermogravimetry, differential thermal analysis, small-angle X-ray scattering and transmission electron microscopy. Hypericin aggregates were confirmed by absorption spectra typical of aggregated hypericin and by its short fluorescence lifetime. Release of hypericin from the particles was observed toward serum proteins, mimicking physiological conditions. Temperature- and time-dependent uptake of hypericin by cancer cells showed gradual release of hypericin from the particles and active cellular transport by endocytosis. A closer examination of SBA-15-hypericin uptake by fluorescence lifetime imaging showed that aggregated hypericin molecules, characterized by a short fluorescence lifetime (∼4 ns), were still present in the SBA-15 particles upon uptake by cells. However, monomerization of hypericin in cancer cells was observed by extending the hypericin fluorescence lifetime by ∼8 ns, preferentially in lipid compartments and the plasma membrane. This suggests a promising prognosis for delayed biological activity of the entire cargo, which was confirmed by effective PDT in vitro. In summary, this work presents an approach for safe, inactive delivery of hypericin that is activated at the target site in cells and tissues.
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Affiliation(s)
- Viktória Pevná
- Department of Biophysics, Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Jesenná 5, SK-041 54 Košice, Slovakia
| | - Ľuboš Zauška
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Košice, Slovakia
| | - Anass Benziane
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - György Vámosi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Vladimír Girman
- Department of Solid State Physics, Faculty of Science, P.J. Šafárik University in Košice, Park Angelinum, SK-041 54, Košice, Slovakia
| | - Monika Miklóšová
- 2(nd) Department of Surgery, Faculty of Medicine, P.J. Šafárik University in Košice, Rastislavova 43, SK-040 01 Košice, Slovakia
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Košice, Slovakia
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences, Technology and Innovation Park, P.J. Šafárik University in Košice, Jesenná 5, SK-041 54 Košice, Slovakia.
| | - Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Košice, Slovakia
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Pevná V, Zauška Ľ, Almáši M, Hovan A, Bánó G, Máčajová M, Bilčík B, Zeleňák V, Huntošová V. Redistribution of hydrophobic hypericin from nanoporous particles of SBA-15 silica in vitro, in cells and in vivo. Int J Pharm 2023; 643:123288. [PMID: 37532008 DOI: 10.1016/j.ijpharm.2023.123288] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/04/2023] [Accepted: 07/31/2023] [Indexed: 08/04/2023]
Abstract
Nanoporous silica is nowadays used in various fields of nano- and micro-materials research. The advantage of nanoporous material is that it can be filled with various hydrophilic and hydrophobic molecules, which are then delivered to the target cells and tissues. In the present study, we have studied the interaction of nanoporous silica with hydrophobic and photodynamically active molecule - hypericin. Hypericin was adsorbed on/in SBA-15 silica, which led to the disappearance of its fluorescence due to hypericin aggregate formation. However, it was observed here that hypericin can be easily redistributed from these particles towards proteins and lipids in serum and cells in vitro and in vivo. Moreover, the charged surface character of SBA-15 pores forced the creation of protein/lipid corona on particles. Such complex enabled monomerization of hypericin on the surface of particles presented by fluorescence in the corona and singlet oxygen production suitable for photodynamic therapy (PDT). The PDT efficacy achieved by introducing the new construct into the PDT protocol was comparable to the efficacy of hypericin PDT. In conclusion, this study demonstrates a promising approach for the delivery of hydrophobic photosensitizers to cancer cells by nanoporous silica using fluorescence techniques.
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Affiliation(s)
- Viktória Pevná
- Department of Biophysics, Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia
| | - Ľuboš Zauška
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, 041 54 Košice, Slovakia
| | - Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, 041 54 Košice, Slovakia
| | - Andrej Hovan
- Department of Biophysics, Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia
| | - Gregor Bánó
- Department of Biophysics, Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia
| | - Mariana Máčajová
- Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 840 05 Bratislava, Slovakia
| | - Boris Bilčík
- Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 840 05 Bratislava, Slovakia
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University in Košice, Moyzesova 11, 041 54 Košice, Slovakia
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences, Technology and Innovation Park, P.J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia.
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Király N, Capková D, Gyepes R, Vargová N, Kazda T, Bednarčík J, Yudina D, Zelenka T, Čudek P, Zeleňák V, Sharma A, Meynen V, Hornebecq V, Straková Fedorková A, Almáši M. Sr(II) and Ba(II) Alkaline Earth Metal-Organic Frameworks (AE-MOFs) for Selective Gas Adsorption, Energy Storage, and Environmental Application. Nanomaterials (Basel) 2023; 13:234. [PMID: 36677987 PMCID: PMC9866501 DOI: 10.3390/nano13020234] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Two new alkaline earth metal-organic frameworks (AE-MOFs) containing Sr(II) (UPJS-15) or Ba(II) (UPJS-16) cations and extended tetrahedral linker (MTA) were synthesized and characterized in detail (UPJS stands for University of Pavol Jozef Safarik). Single-crystal X-ray analysis (SC-XRD) revealed that the materials are isostructural and, in their frameworks, one-dimensional channels are present with the size of ~11 × 10 Å2. The activation process of the compounds was studied by the combination of in situ heating infrared spectroscopy (IR), thermal analysis (TA) and in situ high-energy powder X-ray diffraction (HE-PXRD), which confirmed the stability of compounds after desolvation. The prepared compounds were investigated as adsorbents of different gases (Ar, N2, CO2, and H2). Nitrogen and argon adsorption measurements showed that UPJS-15 has SBET area of 1321 m2 g-1 (Ar) / 1250 m2 g-1 (N2), and UPJS-16 does not adsorb mentioned gases. From the environmental application, the materials were studied as CO2 adsorbents, and both compounds adsorb CO2 with a maximum capacity of 22.4 wt.% @ 0 °C; 14.7 wt.% @ 20 °C and 101 kPa for UPJS-15 and 11.5 wt.% @ 0°C; 8.4 wt.% @ 20 °C and 101 kPa for UPJS-16. According to IAST calculations, UPJS-16 shows high selectivity (50 for CO2/N2 10:90 mixture and 455 for CO2/N2 50:50 mixture) and can be applied as CO2 adsorbent from the atmosphere even at low pressures. The increased affinity of materials for CO2 was also studied by DFT modelling, which revealed that the primary adsorption sites are coordinatively unsaturated sites on metal ions, azo bonds, and phenyl rings within the MTA linker. Regarding energy storage, the materials were studied as hydrogen adsorbents, but the materials showed low H2 adsorption properties: 0.19 wt.% for UPJS-15 and 0.04 wt.% for UPJS-16 @ -196 °C and 101 kPa. The enhanced CO2/H2 selectivity could be used to scavenge carbon dioxide from hydrogen in WGS and DSR reactions. The second method of applying samples in the area of energy storage was the use of UPJS-15 as an additive in a lithium-sulfur battery. Cyclic performance at a cycling rate of 0.2 C showed an initial discharge capacity of 337 mAh g-1, which decreased smoothly to 235 mAh g-1 after 100 charge/discharge cycles.
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Affiliation(s)
- Nikolas Király
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Dominika Capková
- Department of Physical Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Albertov 8, CZ-128 43 Prague, Czech Republic
| | - Nikola Vargová
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Tomáš Kazda
- Department of Electrical and Electronic Technology, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, CZ-616 00 Brno, Czech Republic
| | - Jozef Bednarčík
- Department of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, SK-041 01 Košice, Slovakia
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-040 01 Košice, Slovakia
| | - Daria Yudina
- Department of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, SK-041 01 Košice, Slovakia
| | - Tomáš Zelenka
- Department of Chemistry, Faculty of Science, University of Ostrava, 30. Dubna 22, CZ-702 00 Ostrava, Czech Republic
| | - Pavel Čudek
- Department of Electrical and Electronic Technology, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, CZ-616 00 Brno, Czech Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Anshu Sharma
- Department of Physics, School of Engineering & Technology, Central University of Haryana, Mahendergarh 123031, India
| | - Vera Meynen
- Laboratory of Adsorption and Catalysis, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium
| | - Virginie Hornebecq
- Centre National de la Recherche Scientifique (CNRS), Matériaux Divisé, Interfaces, Réactivité, Electrochimie (MADIREL), Centre de Saint Jérôme, Aix-Marseille University, Avenue Escadrille-Normandie-Niemen, F-133 97 Marseille, France
| | - Andrea Straková Fedorková
- Department of Physical Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
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Zauška Ľ, Beňová E, Urbanová M, Brus J, Zeleňák V, Hornebecq V, Almáši M. Adsorption and Release Properties of Drug Delivery System Naproxen-SBA-15: Effect of Surface Polarity, Sodium/Acid Drug Form and pH. J Funct Biomater 2022; 13:jfb13040275. [PMID: 36547535 PMCID: PMC9781637 DOI: 10.3390/jfb13040275] [Citation(s) in RCA: 6] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Mesoporous silica SBA-15 was prepared via sol-gel synthesis and functionalized with different types of organosilanes containing various organic functional groups: (3-aminopropyl)triethoxysilane (SBA-15-NH2), (3-mercaptopropyl)triethoxysilane (SBA-15-SH), triethoxymethylsilane (SBA-15-CH3), triethoxyphenylsilane (SBA-15-Ph), and (3-isocynatopropyl)triethoxysilane (SBA-15-NCO). The prepared materials were investigated as drug delivery systems for naproxen. As model drugs, naproxen acid (HNAP) and its sodium salt (NaNAP) were used. Mentioned medicaments belong to the group of non-steroidal anti-inflammatory drugs (NSAIDs). The prepared materials were characterized by different analytical methods such as transmission electron microscopy (TEM), infrared spectroscopy (IR), nitrogen adsorption/desorption analysis (N2), thermogravimetric analysis (TG), 1H, 13C and 23Na solid-state nuclear magnetic resonance spectroscopy (1H, 13C and 23Na ss-NMR). The abovementioned analytical techniques confirmed the successful grafting of functional groups to the SBA-15 surface and the adsorption of drugs after the impregnation process. The BET area values decreased from 927 m2 g-1 for SBA-15 to 408 m2 g-1 for SBA-15-NCO. After drug encapsulation, a more significant decrease in surface area was observed due to the filling of pores with drug molecules, while the most significant decrease was observed for the SBA-15-NH2 material (115 m2 g-1 for NaNAP and 101 m2 g-1 for HNAP). By combining TG and nitrogen adsorption results, the occurrence of functional groups and the affinity of drugs to the carriers' surface were calculated. The dominant factor was the volume of functional groups and intermolecular interactions. The highest drug affinity values were observed for phenyl and amine-modified materials (SBA-15-Ph = 1.379 μmol m-2 mmol-1 for NaNAP, 1.761 μmol m-2 mmol-1 for HNAP and SBA-15-NH2 = 1.343 μmol m-2 mmol-1 for NaNAP, 1.302 μmol m-2 mmol-1 for HNAP) due to the formation of hydrogen bonds and π-π interactions, respectively. Drug release properties and kinetic studies were performed at t = 37 °C (normal human body temperature) in different media with pH = 2 as simulated human gastric fluid and pH = 7.4, which simulated a physiological environment. Determination of drug release quantity was performed with UV-VIS spectroscopy. The surface polarity, pH and naproxen form influenced the total released amount of drug. In general, naproxen sodium salt has a higher solubility than its acid form, thus significantly affecting drug release from surface-modified SBA-15 materials. Different pH conditions involved surface protonation and formation/disruption of intermolecular interactions, influencing both the release rate and the total released amount of naproxen. Different kinetic models, zero-order, first-order, Higuchi and Hixson-Crowell models, were used to fit the drug release data. According to the obtained experimental results, the drug release rates and mechanisms were determined.
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Affiliation(s)
- Ľuboš Zauška
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovakia
| | - Eva Beňová
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovakia
| | - Martina Urbanová
- Department of NMR Spectroscopy, Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, CZ-162 06 Prague, Czech Republic
| | - Jiří Brus
- Department of NMR Spectroscopy, Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, CZ-162 06 Prague, Czech Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovakia
| | | | - Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovakia
- Correspondence:
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Király N, Capková D, Almáši M, Kazda T, Čech O, Čudek P, Fedorková AS, Lisnichuk M, Meynen V, Zeleňák V. Post-synthetically modified metal–porphyrin framework GaTCPP for carbon dioxide adsorption and energy storage in Li–S batteries. RSC Adv 2022; 12:23989-24002. [PMID: 36093251 PMCID: PMC9400624 DOI: 10.1039/d2ra03301a] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/09/2022] [Indexed: 01/16/2023] Open
Abstract
Metal–porphyrin framework GaTCPP was used for carbon dioxide adsorption and as a host for preparation of a Li–S battery cathode material.
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Affiliation(s)
- Nikolas Király
- Department of Inorganic Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154, Košice, Slovak Republic
| | - Dominika Capková
- Department of Physical Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154, Košice, Slovak Republic
| | - Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154, Košice, Slovak Republic
| | - Tomáš Kazda
- Department of Electrical and Electronic Technology, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, 616 00, Brno, Czech Republic
| | - Ondej Čech
- Department of Electrical and Electronic Technology, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, 616 00, Brno, Czech Republic
| | - Pavel Čudek
- Department of Electrical and Electronic Technology, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, 616 00, Brno, Czech Republic
| | - Andrea Straková Fedorková
- Department of Physical Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154, Košice, Slovak Republic
| | - Maxim Lisnichuk
- Institute of Physics, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 04001 Košice, Slovak Republic
| | - Vera Meynen
- Laboratory of Adsorption and Catalysis (LADCA), Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154, Košice, Slovak Republic
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Almáši M, Matiašová AA, Šuleková M, Beňová E, Ševc J, Váhovská L, Lisnichuk M, Girman V, Zeleňáková A, Hudák A, Zeleňák V. In vivo study of light-driven naproxen release from gated mesoporous silica drug delivery system. Sci Rep 2021; 11:20191. [PMID: 34642409 PMCID: PMC8511123 DOI: 10.1038/s41598-021-99678-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 07/06/2021] [Accepted: 09/29/2021] [Indexed: 11/18/2022] Open
Abstract
A drug delivery system based on mesoporous particles MCM-41 was post-synthetically modified by photo-sensitive ligand, methyl-(2E)-3-(4-(triethoxysilyl)-propoxyphenyl)-2-propenoate (CA) and the pores of MCM-41 particles were loaded with Naproxen sodium salt (NAP). The CA was used as a photoactive molecule that can undergo a reversible photo-dimerization by [2π + 2π] cycloaddition when irradiated with UV light of specific wavelengths. Thus, it has a function of gate-keeper that is responsible for opening/closing the pores and minimizing premature release of NAP. The physicochemical properties of the prepared system were studied by infrared spectroscopy (IR), nitrogen adsorption measurements, thermogravimetric analysis (TGA), scanning transmission electron microscopy (STEM) and energy dispersive X-ray spectroscopy (EDX). The mechanism of the opening/closing pores was confirmed by UV measurements. In vitro and in vivo drug release experiments and the concentration of released NAP was determined by UV spectroscopy and high-performance liquid chromatography (HPLC). In vivo drug release in the blood circulatory system of rats has demonstrated the effective photo-cleavage reaction of CA molecules after UV-light stimulation. The localization and morphological changes of the particles were studied in the blood and liver of rats at different time intervals. The particles in the blood have been shown to retain their original rod-like shape, and the particles in the liver have been hydrolysed, which has resulted in spherical shape with a reduced size.
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Affiliation(s)
- Miroslav Almáši
- Department of Inorganic Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 041 54, Kosice, Slovakia
| | - Anna Alexovič Matiašová
- Department of Cell Biology, Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University, Šrobárová 2, 041 54, Kosice, Slovakia
| | - Monika Šuleková
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81, Kosice, Slovakia
| | - Eva Beňová
- Department of Inorganic Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 041 54, Kosice, Slovakia
| | - Juraj Ševc
- Department of Cell Biology, Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University, Šrobárová 2, 041 54, Kosice, Slovakia
| | - Lucia Váhovská
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81, Kosice, Slovakia
| | - Maksym Lisnichuk
- Department of Condensed Matter Physics, Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54, Kosice, Slovakia
| | - Vladimír Girman
- Department of Condensed Matter Physics, Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54, Kosice, Slovakia
| | - Adriana Zeleňáková
- Department of Condensed Matter Physics, Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54, Kosice, Slovakia
| | - Alexander Hudák
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81, Kosice, Slovakia
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 041 54, Kosice, Slovakia.
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9
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Király N, Zeleňák V, Lenártová N, Zeleňáková A, Čižmár E, Almáši M, Meynen V, Hovan A, Gyepes R. Novel Lanthanide(III) Porphyrin-Based Metal-Organic Frameworks: Structure, Gas Adsorption, and Magnetic Properties. ACS Omega 2021; 6:24637-24649. [PMID: 34604646 PMCID: PMC8482518 DOI: 10.1021/acsomega.1c03327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
The present work focuses on the hydrothermal synthesis and properties of porous coordination polymers of metal-porphyrin framework (MPF) type, namely, {[Pr4(H2TPPS)3]·11H2O} n (UPJS-10), {[Eu/Sm(H2TPPS)]·H3O+·16H2O} n (UPJS-11), and {[Ce4(H2TPPS)3]·11H2O} n (UPJS-12) (H2TPPS = 4,4',4″,4‴-(porphyrin-5,10,15,20-tetrayl)tetrakisbenzenesulfonate(4-)). The compounds were characterized using several analytical techniques: infrared spectroscopy, thermogravimetric measurements, elemental analysis, gas adsorption measurements, and single-crystal structure analysis (SXRD). The results of SXRD revealed a three-dimensional open porous framework containing crossing cavities propagating along all crystallographic axes. Coordination of H2TPPS4- ligands with Ln(III) ions leads to the formation of 1D polymeric chains propagating along the c crystallographic axis. Argon sorption measurements at -186 °C show that the activated MPFs have apparent BET surface areas of 260 m2 g-1 (UPJS-10) and 230 m2 g-1 (UPJS-12). Carbon dioxide adsorption isotherms at 0 °C show adsorption capacities up to 1 bar of 9.8 wt % for UPJS-10 and 8.6 wt % for UPJS-12. At a temperature of 20 °C, the respective CO2 adsorption capacities decreased to 6.95 and 5.99 wt %, respectively. The magnetic properties of UPJS-10 are characterized by the presence of a close-lying nonmagnetic ground singlet and excited doublet states in the electronic spectrum of Pr(III) ions. A much larger energy difference was suggested between the two lowest Kramers doublets of Ce(III) ions in UPJS-12. Finally, the analysis of X-band EPR spectra revealed the presence of radical spins, which were tentatively assigned to be originating from the porphyrin ligands.
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Affiliation(s)
- Nikolas Király
- Department
of Inorganic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, Košice SK-041 54, Slovakia
| | - Vladimír Zeleňák
- Department
of Inorganic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, Košice SK-041 54, Slovakia
| | - Nina Lenártová
- Department
of Inorganic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, Košice SK-041 54, Slovakia
| | - Adriana Zeleňáková
- Institute
of Physics, P. J. Šafárik
University, Park Angelinum 9, Košice SK-04154, Slovakia
| | - Erik Čižmár
- Institute
of Physics, P. J. Šafárik
University, Park Angelinum 9, Košice SK-04154, Slovakia
| | - Miroslav Almáši
- Department
of Inorganic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, Košice SK-041 54, Slovakia
| | - Vera Meynen
- Laboratory
of Adsorption and Catalysis, University
of Antwerp, Universiteitsplein
1, Wilrijk B-2610, Belgium
| | - Andrej Hovan
- Institute
of Physics, P. J. Šafárik
University, Park Angelinum 9, Košice SK-04154, Slovakia
| | - Róbert Gyepes
- Department
of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague CZ-128
43, Czech Republic
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10
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Zeleňák V, Saldan I. Factors Affecting Hydrogen Adsorption in Metal-Organic Frameworks: A Short Review. Nanomaterials (Basel) 2021; 11:nano11071638. [PMID: 34206689 PMCID: PMC8303527 DOI: 10.3390/nano11071638] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 04/16/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 02/02/2023]
Abstract
Metal–organic frameworks (MOFs) have significant potential for hydrogen storage. The main benefit of MOFs is their reversible and high-rate hydrogen adsorption process, whereas their biggest disadvantage is related to their operation at very low temperatures. In this study, we describe selected examples of MOF structures studied for hydrogen adsorption and different factors affecting hydrogen adsorption in MOFs. Approaches to improving hydrogen uptake are reviewed, including surface area and pore volume, in addition to the value of isosteric enthalpy of hydrogen adsorption. Nanoconfinement of metal hydrides inside MOFs is proposed as a new approach to hydrogen storage. Conclusions regarding MOFs with incorporated metal nanoparticles, which may be used as nanoscaffolds and/or H2 sorbents, are summarized as prospects for the near future.
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Affiliation(s)
- Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154 Košice, Slovakia;
- Correspondence:
| | - Ivan Saldan
- Department of Inorganic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 04154 Košice, Slovakia;
- Department of Physical and Colloid Chemistry, Faculty of Chemistry, Ivan Franko National University of Lviv, Kyryla and Mefodia 6, 79005 Lviv, Ukraine
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11
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Almáši M, Király N, Zeleňák V, Vilková M, Bourrelly S. Zinc(ii) and cadmium(ii) amorphous metal-organic frameworks (aMOFs): study of activation process and high-pressure adsorption of greenhouse gases. RSC Adv 2021; 11:20137-20150. [PMID: 35479897 PMCID: PMC9033798 DOI: 10.1039/d1ra02938j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 04/15/2021] [Accepted: 05/29/2021] [Indexed: 01/05/2023] Open
Abstract
Two novel amorphous metal-organic frameworks (aMOFs) with chemical composition {[Zn2(MTA)]·4H2O·3DMF} n (UPJS-13) and {[Cd2(MTA)]·5H2O·4DMF} n (UPJS-14) built from Zn(ii) and Cd(ii) ions and extended tetrahedral tetraazo-tetracarboxylic acid (H4MTA) as a linker were prepared and characterised. Nitrogen adsorption measurements were performed on as-synthesized (AS), ethanol exchanged (EX) and freeze-dried (FD) materials at different activation temperatures of 60, 80, 100, 120, 150 and 200 °C to obtain the best textural properties. The largest surface areas of 830 m2 g-1 for UPJS-13 (FD) and 1057 m2 g-1 for UPJS-14 (FD) were calculated from the nitrogen adsorption isotherms for freeze-dried materials activated at mild activation temperature (80 °C). Subsequently, the prepared compounds were tested as adsorbents of greenhouse gases, carbon dioxide and methane, measured at high pressures. The maximal adsorption capacities were 30.01 wt% CO2 and 4.84 wt% CH4 for UPJS-13 (FD) and 24.56 wt% CO2 and 6.38 wt% CH4 for UPJS-14 (FD) at 20 bar and 30 °C.
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Affiliation(s)
- Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Nikolas Király
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Mária Vilková
- NMR Laboratory, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 01 Košice Slovak Republic
| | - Sandrine Bourrelly
- Aix-Marseille University, CNRS, MADIREL Marseille Cedex 20 F-133 97 France
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12
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Zeleňáková A, Szűcsová J, Nagy Ľ, Girman V, Zeleňák V, Huntošová V. Magnetic Characterization and Moderate Cytotoxicity of Magnetic Mesoporous Silica Nanocomposite for Drug Delivery of Naproxen. Nanomaterials (Basel) 2021; 11:901. [PMID: 33915918 PMCID: PMC8066468 DOI: 10.3390/nano11040901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 01/27/2021] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 11/16/2022]
Abstract
In this study, we describe the magnetic and structural properties and cytotoxicity of drug delivery composite (DDC) consisting of hexagonally ordered mesoporous silica, iron oxide magnetic nanoparticles (Fe2O3), and the drug naproxen (Napro). The nonsteroidal anti-inflammatory drug (NSAID) naproxen was adsorbed into the pores of MCM-41 silica after the ultra-small superparamagnetic iron oxide nanoparticles (USPIONs) encapsulation. Our results confirm the suppression of the Brownian relaxation process caused by a "gripping effect" since the rotation of the whole particle encapsulated in the porous system of mesoporous silica was disabled. This behavior was observed for the first time, to the best of our knowledge. Therefore, the dominant relaxation mechanism in powder and liquid form is the Néel process when the rotation of the nanoparticle's magnetic moment is responsible for the relaxation. The in vitro cytotoxicity tests were performed using human glioma U87 MG cells, and the moderate manifestation of cell death, although at high concentrations of studied systems, was observed with fluorescent labeling by AnnexinV/FITC. All our results indicate that the as-prepared MCM-41/Napro/Fe2O3 composite has a potential application as a drug nanocarrier for magnetic-targeted drug delivery.
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Affiliation(s)
- Adriana Zeleňáková
- Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 040 01 Košice, Slovakia; (J.S.); (Ľ.N.); (V.G.)
| | - Jaroslava Szűcsová
- Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 040 01 Košice, Slovakia; (J.S.); (Ľ.N.); (V.G.)
| | - Ľuboš Nagy
- Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 040 01 Košice, Slovakia; (J.S.); (Ľ.N.); (V.G.)
| | - Vladimír Girman
- Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 040 01 Košice, Slovakia; (J.S.); (Ľ.N.); (V.G.)
| | - Vladimír Zeleňák
- Institute of Chemistry, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 040 01 Košice, Slovakia;
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences, Pavol Jozef Šafárik University in Košice, Jesenna 5, 040 01 Košice, Slovakia;
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13
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Žid L, Zeleňák V, Almáši M, Zeleňáková A, Szücsová J, Bednarčík J, Šuleková M, Hudák A, Váhovská L. Mesoporous Silica as a Drug Delivery System for Naproxen: Influence of Surface Functionalization. Molecules 2020; 25:molecules25204722. [PMID: 33076274 PMCID: PMC7587581 DOI: 10.3390/molecules25204722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 08/05/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/23/2022] Open
Abstract
In this work we describe the relationship between surface modification of hexagonally ordered mesoporous silica SBA-15 and loading/release characteristics of nonsteroidal anti-inflammatory drug (NSAID) naproxen. Mesoporous silica (MPS) was modified with 3-aminopropyl, phenyl and cyclohexyl groups by grafting method. Naproxen was adsorbed into pores of the prepared MPS from ethanol solution using a solvent evaporation method. The release of the drug was performed in buffer medium at pH 2 and physiological solution at pH 7.4. Parent MPSs as well as naproxen loaded MPSs were characterized using physicochemical techniques such as nitrogen adsorption/desorption, thermogravimetric analysis (TG), Zeta potential analysis, Fourier transform infrared spectroscopy (FT-IR), and elemental analysis. The amount of naproxen released from the MPSs into the medium was determined by high-performance liquid chromatography (HPLC). It was shown that the adsorption and desorption characteristics of naproxen are dependent on the pH of the solution and the surface functionalization of the host.
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Affiliation(s)
- Lukáš Žid
- Department of Inorganic Chemistry Faculty of Science, P.J. Šafárik University, Moyzesova 11, SK-041 54 Košice, Slovakia; (L.Ž.); (M.A.)
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry Faculty of Science, P.J. Šafárik University, Moyzesova 11, SK-041 54 Košice, Slovakia; (L.Ž.); (M.A.)
- Correspondence: ; Tel.: +421552342343
| | - Miroslav Almáši
- Department of Inorganic Chemistry Faculty of Science, P.J. Šafárik University, Moyzesova 11, SK-041 54 Košice, Slovakia; (L.Ž.); (M.A.)
| | - Adriana Zeleňáková
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 04001 Košice, Slovakia; (A.Z.); (J.S.); (J.B.)
| | - Jaroslava Szücsová
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 04001 Košice, Slovakia; (A.Z.); (J.S.); (J.B.)
| | - Jozef Bednarčík
- Institute of Physics, P. J. Šafárik University, Park Angelinum 9, 04001 Košice, Slovakia; (A.Z.); (J.S.); (J.B.)
| | - Monika Šuleková
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, 04181 Košice, Slovakia; (M.Š.); (A.H.); (L.V.)
| | - Alexander Hudák
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, 04181 Košice, Slovakia; (M.Š.); (A.H.); (L.V.)
| | - Lucia Váhovská
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy, 04181 Košice, Slovakia; (M.Š.); (A.H.); (L.V.)
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14
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Almáši M, Zeleňák V, Gyepes R, Zauška Ľ, Bourrelly S. A series of four novel alkaline earth metal-organic frameworks constructed of Ca(ii), Sr(ii), Ba(ii) ions and tetrahedral MTB linker: structural diversity, stability study and low/high-pressure gas adsorption properties. RSC Adv 2020; 10:32323-32334. [PMID: 35516486 PMCID: PMC9056647 DOI: 10.1039/d0ra05145d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 06/11/2020] [Accepted: 08/20/2020] [Indexed: 12/19/2022] Open
Abstract
A series of four novel microporous alkaline earth metal–organic frameworks (AE-MOFs) containing methanetetrabenzoate linker (MTB) with composition {[Ca4(μ8-MTB)2]·2DMF·4H2O}n (UPJS-6), {[Ca4(μ4-O)(μ8-MTB)3/2(H2O)4]·4DMF·4H2O}n (UPJS-7), {[Sr3(μ7-MTB)3/2]·4DMF·7H2O}n (UPJS-8) and {[Ba3(μ7-MTB)3/2(H2O)6]·2DMF·4H2O}n (UPJS-9) (UPJS = University of Pavol Jozef Safarik) have been successfully prepared and characterized. The framework stability and thermal robustness of prepared materials were investigated using thermogravimetric analysis (TGA) and high-energy powder X-ray diffraction (HE-PXRD). MOFs were tested as adsorbents for different gases at various pressures and temperatures. Nitrogen and argon adsorption showed that the activated samples have moderate BET surface areas: 103 m2 g−1 (N2)/126 m2 g−1 (Ar) for UPJS-7′′, 320 m2 g−1 (N2)/358 m2 g−1 (Ar) for UPJS-9′′ and UPJS-8′′ adsorbs only a limited amount of N2 and Ar. It should be noted that all prepared compounds adsorb carbon dioxide with storage capacities ranging from 3.9 to 2.4 wt% at 20 °C and 1 atm, and 16.4–13.5 wt% at 30 °C and 20 bar. Methane adsorption isotherms show no adsorption at low pressures and with increasing pressure the storage capacity increases to 4.0–2.9 wt% of CH4 at 30 °C and 20 bar. Compounds displayed the highest hydrogen uptake of 3.7–1.8 wt% at −196 °C and 800 Torr among MTB containing MOFs. Four novel microporous alkaline earth metal–organic frameworks (AE-MOFs) containing methanetetrabenzoate linker (MTB): UPJS-6, UPJS-7, UPJS-8 and UPJS-9 have been successfully prepared, characterized and tested as adsorbents for different gases.![]()
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Affiliation(s)
- Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University Hlavova 2030 CZ-128 43 Prague Czech Republic
| | - Ľuboš Zauška
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University Moyzesova 11 SK-041 54 Košice Slovak Republic
| | - Sandrine Bourrelly
- Aix-Marseille University, CNRS, MADIREL Marseille Cedex 20 F-133 97 France
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15
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Žid L, Zeleňák V, Girman V, Bednarčík J, Zeleňáková A, Szűcsová J, Hornebecq V, Hudák A, Šuleková M, Váhovská L. Doxorobicin as cargo in a redox-responsive drug delivery system capped with water dispersible ZnS nanoparticles. RSC Adv 2020; 10:15825-15835. [PMID: 35493685 PMCID: PMC9052939 DOI: 10.1039/d0ra02091e] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/13/2020] [Indexed: 11/29/2022] Open
Abstract
In this work, we have prepared and investigated a redox-responsive drug delivery system (DDS) based on a porous carrier. Doxorubicin (DOX), a chemotherapy medication for treatment of different kinds of cancer, was used as a model drug in the study. DOX was loaded in ordered hexagonal mesoporous silica SBA-15, a nanoporous material with good biocompatibility, stability, large pore size and specific surface area (SBET = 908 m2 g−1, VP = 0.79 cm3 g−1, d = 5.9 nm) and easy surface modification. To prepare the redox-responsive system, cystamine derivative ligands, with redox active disulphide linkers were grafted onto the surface of SBA-15. To ensure no significant premature release of DOX from the porous system, thioglycolic acid modified ZnS nanoparticles (ZnS–COOH NPs) were used as pore capping agents. The grafted redox-responsive cystamine derivative ligand containing disulphide linkers was bonded by a peptide bond to the thioglycolic acid groups of ZnS–COOH NPs, capping the pores. Once the disulphide bond was cleaved, the ZnS–COOH NPs caps were released and pores were opened to deliver the DOX cargo. The dithiol bond was cleavable by redox active molecules such as dithiothreitol (DTT) or glutathione, the concentration of which in cancer cells is 4 times higher than in healthy cells. The redox release of DOX was studied in two different media, physiological saline solution with DTT and saline without DTT. The prepared DDS proved the concept of redox responsive release. All samples were characterised by powder X-ray diffraction (XRD), transition electron microscopy (TEM), nitrogen adsorption/desorption at 77 K, Fourier-transform infrared spectroscopy (FTIR), thermal analysis and zeta potential measurements. The presence of semiconducting ZnS nanoparticle caps on the pore openings was detected by magnetic measurements using SQUID magnetometry showing that such cargo systems could be monitored using magnetic measurements which opens up the possibilities of using such drug delivery systems as theranostic agents. Redox-responsive drug delivery system was studied. ZnS nanoparticles served as pore capping agent to prevent premature release of anticancer drug. Such cargo can be monitored by magnetic field which opens possibilities its use in theranostics.![]()
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Affiliation(s)
- Lukáš Žid
- Department of Inorganic Chemistry Faculty of Science
- P. J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry Faculty of Science
- P. J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Vladimír Girman
- Institute of Physics
- P. J. Šafárik University
- 04001 Košice
- Slovakia
| | - Jozef Bednarčík
- Institute of Physics
- P. J. Šafárik University
- 04001 Košice
- Slovakia
| | | | | | | | - Alexander Hudák
- Department of Chemistry
- Biochemistry and Biophysics
- Institute of Pharmaceutical Chemistry
- The University of Veterinary Medicine and Pharmacy in Košice
- Košice 041 81
| | - Monika Šuleková
- Department of Chemistry
- Biochemistry and Biophysics
- Institute of Pharmaceutical Chemistry
- The University of Veterinary Medicine and Pharmacy in Košice
- Košice 041 81
| | - Lucia Váhovská
- Department of Chemistry
- Biochemistry and Biophysics
- Institute of Pharmaceutical Chemistry
- The University of Veterinary Medicine and Pharmacy in Košice
- Košice 041 81
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16
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Almáši M, Beňová E, Zeleňák V, Madaj B, Huntošová V, Brus J, Urbanová M, Bednarčík J, Hornebecq V. Cytotoxicity study and influence of SBA-15 surface polarity and pH on adsorption and release properties of anticancer agent pemetrexed. Mater Sci Eng C Mater Biol Appl 2019; 109:110552. [PMID: 32228921 DOI: 10.1016/j.msec.2019.110552] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023]
Abstract
Mesoporous material SBA-15 was functionalized with different polar and nonpolar groups: 3-aminopropyl, (SBA-15-NH2), 3-isocyanatopropyl (SBA-15-NCO), 3-mercaptopropyl (SBA-15-SH), methyl (SBA-15-CH3) and phenyl (SBA-15-Ph). The resulting surface grafted materials were investigated as matrices for controlled drug delivery. Anticancer agent, pemetrexed (disodium pemetrexed heptahydrate) was selected as a model drug and loaded in the unmodified and functionalized SBA-15 materials. Materials were characterized by elemental analysis, infrared spectroscopy, transmission electron microscopy, nitrogen adsorption/desorption analysis, small angle X-ray scattering, powder X-ray diffraction, solid state NMR spectroscopy and thermogravimetry. It was shown that surface modification has an impact on both encapsulated drug amount and release properties. Release experiments were performed into two media with different pH: simulated body fluid (pH = 7.4) and simulated gastric fluid (pH = 2). In general, the effect of pH was reflected by the lower release of pemetrexed under acidic conditions (pH = 2) compared to slightly alkaline saline environment (pH = 7.4). The release rate of pemetrexed from propylamine-, propylisocyanate- and phenyl-modified SBA-15 was found to be effectively controlled by intermolecular interactions as compared to that from pure SBA-15, SBA-15-SH, and SBA-15-CH3, that evidenced a steady and similar release. The highest release was observed for methyl-functionalized material whose hydrophobic surface accelerates the pemetrexed release. The data obtained from release studies were fitted using various kinetic models to determine the pemetrexed release mechanism and its release rate. The best correlations were found for Korsmeyer-Peppas and Higuchi models. Moreover, the theoretical three-parameter model for drug release kinetic was applied to calculate the strength of drug-support interactions. The in vitro cell study was performed on SKBR3 cancer cells and obtained results demonstrated that the modification of the mesoporous silica material by grafted polar/nonpolar groups may significantly affect the compatibility of this material with cells, drug release from this material and subsequent biological activity of PEM.
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Affiliation(s)
- Miroslav Almáši
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovak Republic.
| | - Eva Beňová
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovak Republic; Aix-Marseille University, CNRS, MADIREL, F-133 97 Marseille, France
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovak Republic
| | - Branislav Madaj
- Department of Inorganic Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, SK-041 01 Košice, Slovak Republic
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences, Technology and Innovation Park, P. J. Šafárik University, Jesenna 5, SK-041 54 Košice, Slovak Republic
| | - Jiří Brus
- Laboratory of Solid State NMR Spectroscopy, Department of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky square 2, CZ-162 06 Prague, Czech Republic
| | - Martina Urbanová
- Laboratory of Solid State NMR Spectroscopy, Department of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky square 2, CZ-162 06 Prague, Czech Republic
| | - Jozef Bednarčík
- Department of Physics, Faculty of Science, P. J. Šafárik University, Park Angelinum 9, SK-041 01 Košice, Slovak Republic; Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-040 01 Košice, Slovak Republic
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Zeleňáková A, Hrubovčák P, Kapusta O, Kučerka N, Kuklin A, Ivankov O, Zeleňák V. Size and distribution of the iron oxide nanoparticles in SBA-15 nanoporous silica via SANS study. Sci Rep 2019; 9:15852. [PMID: 31676829 PMCID: PMC6825206 DOI: 10.1038/s41598-019-52417-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/17/2019] [Indexed: 01/18/2023] Open
Abstract
Structural characteristics of nanocomposite series consisting of iron oxide nanoparticles (NPs) embedded in the regular pores of amorphous silica matrix (SBA-15) were investigated by means of small angle neutron scattering (SANS). By virtue of unique neutron properties, insight into the inner structure and matter organization of this kind of systems was facilitated for the first time. Based on rigorous experimental support, fundamental model describing the neutron scattering intensity distribution was proposed by assuming general composite structural features. Model application to SANS data confirmed the presence of iron oxide NPs in the body of examined matrices, providing additional information on their shape, concentration and size distribution. Scattering superposition principle employed in the model conception allows for tailoring its fundamental characteristics, and renders it a potent and versatile tool for a wide range of applications.
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Affiliation(s)
- Adriana Zeleňáková
- P. J. Šafárik University, Department of Solid State Physics, Košice, 041 54, Slovakia.
| | - Pavol Hrubovčák
- P. J. Šafárik University, Department of Solid State Physics, Košice, 041 54, Slovakia
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, 141980, Russia
| | - Ondrej Kapusta
- P. J. Šafárik University, Department of Solid State Physics, Košice, 041 54, Slovakia
| | - Norbert Kučerka
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, 141980, Russia
- Comenius University in Bratislava, Department of Physical Chemistry of Drugs, Bratislava, 832 32, Slovakia
| | - Aleksander Kuklin
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, 141980, Russia
- Moscow Institute of Physics and Technology, Institutsky per. 9, Dolgoprudny, Moscow Region, 141700, Russia
| | - Oleksandr Ivankov
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, 141980, Russia
| | - Vladimír Zeleňák
- P. J. Šafárik University, Department of Inorganic Chemistry, Košice, 041 54, Slovakia
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Zeleňák V, Almáši M, Zeleňáková A, Hrubovčák P, Tarasenko R, Bourelly S, Llewellyn P. Large and tunable magnetocaloric effect in gadolinium-organic framework: tuning by solvent exchange. Sci Rep 2019; 9:15572. [PMID: 31666558 PMCID: PMC6821888 DOI: 10.1038/s41598-019-51590-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 09/23/2019] [Indexed: 12/01/2022] Open
Abstract
Magnetic properties of three variants of MOF-76(Gd), {[Gd(BTC)(H2O)]·G}n (BTC = benzene-1,3,5-tricarboxylate, G = guest molecules) were investigated by static susceptibility, isothermal magnetization and specific heat capacity measurements. In the study we used as synthesized MOF-76(Gd)-DMF (1) (G = DMF = dimethylformamide), containing DMF molecules in the cavity system, compound MOF-76(Gd) (2), activated complex without solvents in the cavities and water exchanged sample MOF-76(Gd)-H2O (3). A pronounced change in the magnetic entropy was found near the critical temperature for all three compounds. It was shown, that magnetic entropy change depends on the solvatation of the MOF. The highest value entropy change, ΔSMpk(T) was observed for compound 2 (ΔSMpk(T) = 42 J kg-1 K-1 at 1.8 K for ΔH = 5 T). The ΔSMpk(T) for the compounds 1, 2 and 3 reached 81.8, 88.4 and 100% of the theoretical values, respectively. This suggests that in compound 3 Gd3+···Gd3+ antiferromagnetic interactions are decoupled gradually, and higher fields promote a larger decoupling between the individual spin centers. The observed entropy changes of compounds were comparable with other magnetic refrigerants proposed for low-temperature applications. To study the magnetothermal effect of 2 (the sample with largest -ΔSMpk), the temperature-dependent heat capacities (C) at different fields were measured. The value of magnetic entropy S obtained from heat capacities (39.5 J kg-1 K-1 at 1.8 K for an applied magnetic field change of 5 T) was in good agreement with that derived from the magnetization data (42 J kg-1 K-1 at 1.8 K).
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Affiliation(s)
- Vladimír Zeleňák
- Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Košice, Slovakia.
| | - Miroslav Almáši
- Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Košice, Slovakia
| | - Adriána Zeleňáková
- Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Park Angelinum 9, SK-040 01, Košice, Slovakia
| | - Pavol Hrubovčák
- Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Park Angelinum 9, SK-040 01, Košice, Slovakia
| | - Róbert Tarasenko
- Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Park Angelinum 9, SK-040 01, Košice, Slovakia
| | - Sandrine Bourelly
- Aix-Marseille University, CNRS, MADIREL, F-13397, Marseille 20, France
| | - Philip Llewellyn
- Aix-Marseille University, CNRS, MADIREL, F-13397, Marseille 20, France
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Smolková R, Smolko L, Zeleňák V, Kuchár J, Gyepes R, Talian I, Sabo J, Biščáková Z, Rabajdová M. Impact of the central atom on human genomic DNA and human serum albumin binding properties in analogous Zn(II) and Cd(II) complexes with mefenamic acid. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Šuleková M, Váhovská L, Hudák A, Žid L, Zeleňák V. A Study of 5-Fluorouracil Desorption from Mesoporous Silica by RP-UHPLC. Molecules 2019; 24:E1317. [PMID: 30987237 PMCID: PMC6479690 DOI: 10.3390/molecules24071317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 01/29/2019] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 02/04/2023] Open
Abstract
In cancer treatment, the safe delivery of the drug to the target tissue is an important task. 5-fluorouracil (5-FU), the well-known anticancer drug, was encapsulated into the pores of unmodified mesoporous silica SBA-15, as well as silica modified with 3-aminopropyl and cyclohexyl groups. The drug release studies were performed in two different media, in a simulated gastric fluid (pH = 2) and in a simulated body fluid (pH = 7) by RP-UHPLC. The simple and rapid RP-UHPLC method for quantitative determination of 5-fluorouracil released from unmodified and modified mesoporous silica SBA-15 was established on ODS Hypersil C18 column (150 × 4.6 mm, 5 µm) eluted with mobile phase consisted of methanol: phosphate buffer in volume ratio of 3:97 (v/v). Separation was achieved by isocratic elution. The flow rate was kept at 1 mL/min, the injection volume was set at 20 µL and the column oven temperature was maintained at 25 °C. The effluent was monitored at 268 nm. This paper provides information about the quantitative determination of the released 5-FU from silica. It was found out that larger amount of the drug was released in neutral pH in comparison with the acidic medium. In addition, surface functionalisation of silica SBA-15 influences the release properties of the drug.
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Affiliation(s)
- Monika Šuleková
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy in Košice, 041 81 Košice, Slovakia.
| | - Lucia Váhovská
- Department of Chemistry, Biochemistry and Biophysics, Institute of Biochemistry, The University of Veterinary Medicine and Pharmacy in Košice, 041 81 Košice, Slovakia.
| | - Alexander Hudák
- Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, The University of Veterinary Medicine and Pharmacy in Košice, 041 81 Košice, Slovakia.
| | - Lukáš Žid
- Department of Inorganic Chemistry, Faculty of Sciences, P. J. Šafárik University, Moyzesova 11, SK-041 54 Košice, Slovakia.
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry, Faculty of Sciences, P. J. Šafárik University, Moyzesova 11, SK-041 54 Košice, Slovakia.
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21
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Zeleňák V, Zeleňáková A, Kapusta O, Hrubovčák P, Girman V, Bednarčík J. Fe 2O 3 and Gd 2O 3 nanoparticles loaded in mesoporous silica: insights into influence of NPs concentration and silica dimensionality. RSC Adv 2019; 9:3679-3687. [PMID: 35518101 PMCID: PMC9060262 DOI: 10.1039/c8ra05576a] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 01/07/2019] [Indexed: 12/01/2022] Open
Abstract
Fine Fe2O3 and Gd2O3 magnetic nanoparticles (NPs) with sizes 7 nm and 10 nm embedded into mesoporous silica have been prepared using a wet-impregnation method. A comparative study of the reactant concentration along with the hosting matrix symmetry on mesostructuring and the magnetic properties of the nanocomposites have been investigated. Reactants with four different concentrations of Fe3+ and Gd3+ ions and silica matrices with two different kinds of symmetry (hexagonal and cubic) have been utilized for the study. The structural characterization of the samples has been carried out by the N2 adsorption/desorption method, high-energy X-ray diffraction (HE-XRD), TG/DTA, and high resolution transmission electron microscopy (HRTEM). The magnetic properties of the nanocomposites have been examined by means of SQUID magnetometry. It has been found that a range of different magnetic states (diamagnetic, paramagnetic, ferromagnetic, superparamagnetic) can be induced by the feasible tailoring of the particle concentration, the porous matrix symmetry and the composition. Furthermore, the existence of a “critical concentration limit” for embedding the particles within the body of the matrix has been confirmed. Exceeding the limit results in the expulsion of nanoparticles on the outer surface of the mesoporous matrix. Revelation of the relationships between particle concentration, matrix symmetry and magnetic properties of the particular composite reported in this study may facilitate the design and construction of advanced intelligent nanodevices. The concentration of nanoparticles inside the pores and the symmetry of the porous matrix significantly affected the magnetic properties.![]()
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Affiliation(s)
- V. Zeleňák
- Department of Inorganic Chemistry
- Faculty of Sciences
- P. J. Safarik University in Kosice
- 04054 Košice
- Slovakia
| | - A. Zeleňáková
- Department of Condensed Matter Physics
- Faculty of Sciences
- P. J. Safarik University in Kosice
- 04054 Košice
- Slovakia
| | - O. Kapusta
- Department of Condensed Matter Physics
- Faculty of Sciences
- P. J. Safarik University in Kosice
- 04054 Košice
- Slovakia
| | - P. Hrubovčák
- Department of Condensed Matter Physics
- Faculty of Sciences
- P. J. Safarik University in Kosice
- 04054 Košice
- Slovakia
| | - V. Girman
- Department of Condensed Matter Physics
- Faculty of Sciences
- P. J. Safarik University in Kosice
- 04054 Košice
- Slovakia
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Smolková R, Zeleňák V, Smolko L, Kuchár J, Rabajdová M, Ferenčáková M, Mareková M. Novel zinc complexes of a non-steroidal anti-inflammatory drug, niflumic acid: Structural characterization, human-DNA and albumin binding properties. Eur J Med Chem 2018; 153:131-139. [DOI: 10.1016/j.ejmech.2017.05.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 05/02/2017] [Indexed: 11/25/2022]
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Smolková R, Zeleňák V, Gyepes R, Sabolová D, Imrichová N, Hudecová D, Smolko L. Synthesis, characterization, DNA binding, topoisomerase I inhibition and antimicrobial activity of four novel zinc(II) fenamates. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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24
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Almáši M, Zeleňák V, Gyepes R, Bourrelly S, Opanasenko MV, Llewellyn PL, Čejka J. Microporous Lead–Organic Framework for Selective CO2 Adsorption and Heterogeneous Catalysis. Inorg Chem 2018; 57:1774-1786. [DOI: 10.1021/acs.inorgchem.7b02491] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miroslav Almáši
- Department of Inorganic
Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova
11, SK-041 54 Košice, Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic
Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova
11, SK-041 54 Košice, Slovak Republic
| | - Róbert Gyepes
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
- Department
of Education, University of J. Selye, Bratislavská cesta 3322, SK-945 01 Komárno, Slovak Republic
| | - Sandrine Bourrelly
- Aix-Marseille University, CNRS, MADIREL, F-133 97 Marseille
Cedex 20, France
| | - Maksym V. Opanasenko
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
| | - Philip L. Llewellyn
- Aix-Marseille University, CNRS, MADIREL, F-133 97 Marseille
Cedex 20, France
| | - Jiří Čejka
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
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Abstract
A stimuli-responsive drug delivery system consisting of SBA-12 nanoporous silica modified with a photo-switchable coumarin ligand was studied for the delivery of the non-steroidal anti-inflammatory drug naproxen.
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Affiliation(s)
- Vladimír Zeleňák
- Department of Inorganic Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovakia
| | - Eva Beňová
- Department of Inorganic Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovakia
| | - Miroslav Almáši
- Department of Inorganic Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovakia
| | - Dáša Halamová
- Department of Inorganic Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovakia
| | | | - Viktor Hronský
- Department of Physics
- Faculty of Electrical Engineering and Informatics
- Technical University of Košice
- SK-042 00 Košice
- Slovakia
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Zeleňák V, Magura J, Zeleňáková A, Smolková R. Carbon dioxide and methane adsorption over metal modified mesoporous SBA-15 silica. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-1121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, mesoporous silica materials doped with metal ions (Al3+, Ti4+, Zr4+) were synthesized and characterized by a combination of various techniques, such as small angle X-ray scattering (SAXS), nitrogen adsorption/desorption at 77 K, elemental analysis, transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). It was shown that the metal ion doped samples retained their porous structure, which was similar to that of parent SBA-15. The synthesized M-SBA-15 samples (M=Al3+, Ti4+, Zr4+) were evaluated in terms of adsorption of carbon dioxide and methane at 303 K. It was observed, that metal doping enhances carbon dioxide adsorption in comparison with purely siliceous sample, while low effect of metal doping on methane adsorption was observed.
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Beňová E, Zeleňák V, Halamová D, Almáši M, Petrul'ová V, Psotka M, Zeleňáková A, Bačkor M, Hornebecq V. A drug delivery system based on switchable photo-controlled p-coumaric acid derivatives anchored on mesoporous silica. J Mater Chem B 2017; 5:817-825. [DOI: 10.1039/c6tb02040b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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
Mesoporous silica modified by p-coumaric acid derivatives as photo-switchable ligands was studied for the delivery of a non-steroidal anti-inflammatory drug.
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Affiliation(s)
- Eva Beňová
- Institute of Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Vladimír Zeleňák
- Institute of Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Dáša Halamová
- Institute of Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Miroslav Almáši
- Institute of Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Veronika Petrul'ová
- Institute of Biology and Ecology
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Miroslav Psotka
- Institute of Chemistry
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Adriána Zeleňáková
- Institute of Physics
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
| | - Martin Bačkor
- Institute of Biology and Ecology
- Faculty of Science
- P.J. Šafárik University
- SK-041 54 Košice
- Slovak Republic
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Almáši M, Zeleňák V, Zeleňáková A, Vargová Z, Císařová I. Characterization and magnetic properties of two novel copper(II) coordination polymers prepared by different synthetic techniques. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Smolková R, Zeleňák V, Smolko L, Dušek M. Three variants of novel Co(II) complex with NSAID mefenamic acid and N,N′-donor ligand neocuproine. Z KRIST-CRYST MATER 2016. [DOI: 10.1515/zkri-2016-1991] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Three variants of novel cobalt(II) complex with deprotonated mefenamic acid (mef) and N,N′-donor ligand neocuproine (neo) are described, namely; two differently colored and shaped crystal polymorphs of complex [Co(mef)2(neo)] (1a and 1b) and a pyridine solvate [Co(mef)2(neo)]·py (2). The complexes have been characterized by infrared and UV-VIS spectroscopy, elemental analysis and single-crystal X-ray structure analysis. Although the complexes 1a, 1b and 2 crystallize in different crystal systems and space groups and differ in shapes of coordination polyhedra, the crystal structures of all three complexes contain analogous neutral units with Co(II) atom hexacoordinated by two chelate bonded mefenamato ligands and one chelate bonded neocuproine ligand, yielding CoN2O4 chromophore. The main structural difference between 1a, 1b and 2 is the conformation of the coordinated mef ligands, which affects the crystal packing of the complexes.
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Affiliation(s)
- Romana Smolková
- P. J. Šafárik University in Košice, Faculty of Science, Institute of Chemistry, Department of Inorganic Chemistry, Moyzesova 11, SK-04154 Košice, Slovakia
| | - Vladimír Zeleňák
- P. J. Šafárik University in Košice, Faculty of Science, Institute of Chemistry, Department of Inorganic Chemistry, Moyzesova 11, SK-04154 Košice, Slovakia
| | - Lukáš Smolko
- P. J. Šafárik University in Košice, Faculty of Science, Institute of Chemistry, Department of Inorganic Chemistry, Moyzesova 11, SK-04154 Košice, Slovakia
| | - Michal Dušek
- Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8, Czech Republic
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Almáši M, Zeleňák V, Kuchár J, Bourrelly S, Llewellyn P. New members of MOF-76 family containing Ho(III) and Tm(III) ions: Characterization, stability and gas adsorption properties. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Almáši M, Zeleňák V, Zukal A, Kuchár J, Čejka J. A novel zinc(ii) metal–organic framework with a diamond-like structure: synthesis, study of thermal robustness and gas adsorption properties. Dalton Trans 2016; 45:1233-42. [DOI: 10.1039/c5dt02437d] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel 3D metal–organic framework with a diamond-like structure has been synthesised and structurally characterized. Adsorption of Ar, CO2, H2 and N2 has been studied. Heats of CO2 and H2 adsorption were calculated according to the Clausius–Clapeyron equation.
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Affiliation(s)
- Miroslav Almáši
- Department of Inorganic Chemistry
- Faculty of Science
- P. J. Šafárik University
- Košice
- Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic Chemistry
- Faculty of Science
- P. J. Šafárik University
- Košice
- Slovak Republic
| | - Arnošt Zukal
- Department of Synthesis and Catalysis
- J. Heyrovský Institute of Physical Chemistry of the ASCR
- v.v.i
- Academy of Sciences of the Czech Republic
- 128 23 Prague
| | - Juraj Kuchár
- Department of Inorganic Chemistry
- Faculty of Science
- P. J. Šafárik University
- Košice
- Slovak Republic
| | - Jiří Čejka
- Department of Synthesis and Catalysis
- J. Heyrovský Institute of Physical Chemistry of the ASCR
- v.v.i
- Academy of Sciences of the Czech Republic
- 128 23 Prague
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Almáši M, Zeleňák V, Opanasenko M, Císařová I. Ce(III) and Lu(III) metal–organic frameworks with Lewis acid metal sites: Preparation, sorption properties and catalytic activity in Knoevenagel condensation. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.07.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Vargová Z, Almáši M, Hudecová D, Titková D, Rostášová I, Zeleňák V, Györyová K. New silver(I) pyridinecarboxylate complexes: synthesis, characterization, and antimicrobial therapeutic potential. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.906588] [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] [Indexed: 10/25/2022]
Affiliation(s)
- Z. Vargová
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
| | - M. Almáši
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
| | - D. Hudecová
- Department of Biochemistry and Microbiology, Slovak University of Technology, Bratislava, Slovak Republic
| | - D. Titková
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
| | - I. Rostášová
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
| | - V. Zeleňák
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
| | - K. Györyová
- Faculty of Science, Department of Inorganic Chemistry, P. J. Šafárik University, Košice, Slovak Republic
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Almáši M, Zeleňák V, Opanasenko M, Čejka J. A novel nickel metal–organic framework with fluorite-like structure: gas adsorption properties and catalytic activity in Knoevenagel condensation. Dalton Trans 2014; 43:3730-8. [DOI: 10.1039/c3dt52698d] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Almáši M, Zeleňák V, Gyepes R, Zukal A, Čejka J. Synthesis, characterization and sorption properties of zinc(II) metal–organic framework containing methanetetrabenzoate ligand. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [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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Vargová Z, Almáši M, Arabuli L, Györyová K, Zeleňák V, Kuchár J. Utilization of IR spectral detailed analysis for coordination mode determination in novel Zn-cyclen-aminoacid complexes. Spectrochim Acta A Mol Biomol Spectrosc 2011; 78:788-793. [PMID: 21216184 DOI: 10.1016/j.saa.2010.12.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 11/18/2010] [Accepted: 12/08/2010] [Indexed: 05/30/2023]
Abstract
The infrared spectra, elemental and thermal (TG/DTG and DTA) analyses of novel [Zn(cyclen-κ4N1,4,7,10)(HGly-κ2O,O')](ClO4)2 (1), and [Zn2(cyclen-κ4N1,4,7,10)2(μ-S-Ala-κ2N,O)](ClO4)(3)·2H2O (2) complexes (cyclen - 1,4,7,10-tetraazacyclododecane) were recorded and analyzed in the relation to their structural peculiarities. IR spectral data indicate both mono- or bidentate coordination mode of a carboxylate group in the prepared complexes (at pH≈9). The results indicate unusual bidentate carboxylate coordination mode (in complex (1)) toward to Zn2+-cyclen unit. Therefore the crystal structure determination of the crystalline complex [Zn(cyclen-κ4N1,4,7,10)(NO3-κ2O,O')](NO3) was attached in order to support the coordination mode assignment in complex (1).
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Affiliation(s)
- Z Vargová
- Department of Inorganic chemistry, Institute of Chemistry, University of P.J. Šafárik, 04154 Košice, Slovak Republic.
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Zeleňák V, Zeleňáková A, Kováč J. Insight into surface heterogenity of SBA-15 silica: Oxygen related defects and magnetic properties. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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