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Codrea CI, Lincu D, Atkinson I, Culita DC, Croitoru AM, Dolete G, Trusca R, Vasile BS, Stan MS, Ficai D, Ficai A. Comparison between Two Different Synthesis Methods of Strontium-Doped Hydroxyapatite Designed for Osteoporotic Bone Restoration. Materials (Basel) 2024; 17:1472. [PMID: 38611986 PMCID: PMC11012538 DOI: 10.3390/ma17071472] [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] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/14/2024]
Abstract
Development of efficient controlled local release of drugs that prevent systemic side effects is a challenge for anti-osteoporotic treatments. Research for new bone-regeneration materials is of high importance. Strontium (Sr) is known as an anti-resorptive and anabolic agent useful in treating osteoporosis. In this study, we compared two different types of synthesis used for obtaining nano hydroxyapatite (HA) and Sr-containing nano hydroxyapatite (SrHA) for bone tissue engineering. Synthesis of HA and SrHA was performed using co-precipitation and hydrothermal methods. Regardless of the synthesis route for the SrHA, the intended content of Sr was 1, 5, 10, 20, and 30 molar %. The chemical, morphological, and biocompatibility properties of HA and SrHA were investigated. Based on our results, it was shown that HA and SrHA exhibited low cytotoxicity and demonstrated toxic behavior only at higher Sr concentrations.
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Affiliation(s)
- Cosmin Iulian Codrea
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- Department of Oxide Compounds and Materials Science, Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania; (I.A.)
| | - Daniel Lincu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- Department of Oxide Compounds and Materials Science, Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania; (I.A.)
| | - Irina Atkinson
- Department of Oxide Compounds and Materials Science, Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania; (I.A.)
| | - Daniela C. Culita
- Department of Oxide Compounds and Materials Science, Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 060021 Bucharest, Romania; (I.A.)
| | - Alexa-Maria Croitoru
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Georgiana Dolete
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Roxana Trusca
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Bogdan Stefan Vasile
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Miruna Silvia Stan
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, 050095 Bucharest, Romania;
| | - Denisa Ficai
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania; (D.L.); (A.-M.C.); (G.D.); (R.T.); (B.S.V.); (D.F.)
- National Research Center for Micro and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- National Centre for Food Safety, National University of Science and Technology Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov St. 3, 050044 Bucharest, Romania
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Petcu G, Anghel EM, Atkinson I, Culita DC, Apostol NG, Kuncser A, Papa F, Baran A, Blin JL, Parvulescu V. Composite Photocatalysts with Fe, Co, and Ni Oxides on Supports with Tetracoordinated Ti Embedded into Aluminosilicate Gel during Zeolite Y Synthesis. Gels 2024; 10:129. [PMID: 38391459 PMCID: PMC10888282 DOI: 10.3390/gels10020129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
Ti-aluminosilicate gels were used as supports for the immobilization of Fe, Co, and Ni oxides (5%) by impregnation and synthesis of efficient photocatalysts for the degradation of β-lactam antibiotics from water. Titanium oxide (1 and 2%) was incorporated into the zeolite network by modifying the gel during the zeolitization process. The formation of the zeolite Y structure and its microporous structure were evidenced by X-ray diffraction and N2 physisorption. The structure, composition, reduction, and optical properties were studied by X-ray diffraction, H2-TPR, XPS, Raman, photoluminescence, and UV-Vis spectroscopy. The obtained results indicated a zeolite Y structure for all photocatalysts with tetracoordinated Ti4+ sites. The second transitional metals supported by the post-synthesis method were obtained in various forms, such as oxides and/or in the metallic state. A red shift of the absorption edge was observed in the UV-Vis spectra of photocatalysts upon the addition of Fe, Co, or Ni species. The photocatalytic performances were evaluated for the degradation of cefuroxime in water under visible light irradiation. The best results were obtained for iron-immobilized photocatalysts. Scavenger experiments explained the photocatalytic results and their mechanisms. A different contribution of the active species to the photocatalytic reactions was evidenced.
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Affiliation(s)
- Gabriela Petcu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Elena Maria Anghel
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Irina Atkinson
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Daniela C Culita
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Nicoleta G Apostol
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
| | - Andrei Kuncser
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
| | - Florica Papa
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Adriana Baran
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Jean-Luc Blin
- Faculty of Sciences and Technology, University of Lorraine, CNRS, L2CM, F-54000 Nancy, France
| | - Viorica Parvulescu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
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Zhivkova T, Culita DC, Abudalleh A, Dyakova L, Mocanu T, Madalan AM, Georgieva M, Miloshev G, Hanganu A, Marinescu G, Alexandrova R. Homo- and heterometallic complexes of Zn(II), {Zn(II)Au(I)}, and {Zn(II)Ag(I)} with pentadentate Schiff base ligands as promising anticancer agents. Dalton Trans 2023; 52:12282-12295. [PMID: 37574873 DOI: 10.1039/d3dt01749d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Two families of homo- and heterometallic complexes, [Zn2L1(μ-OH)(H2O)2](ClO4)2, [Zn2L2(μ-OH)(H2O)2](ClO4)2, [Zn2L3(μ-OH)(H2O)2](ClO4)2, 1∞[{L1Zn2(μ-OH)}{μ-[Ag(CN)2]}](ClO4), [{L1Zn2(μ-OH)}2{μ-[Au(CN)2]}{[Au(CN)2]2}](ClO4)·H2O, 1∞[{L2Zn2(μ3-OH)}2(H2O){μ-[Ag(CN)2]}](ClO4)3·THF·0.5MeOH, 1∞[{L2Zn2(μ3-OH)}2(H2O){μ-[Au(CN)2]}](ClO4)3·THF·H2O, and 1∞[{L3Zn2(μ-OH)}{μ-[Ag(CN)2]}][Ag(CN)2]·H2O, respectively, have been synthesized and characterized. The Schiff bases used as ligands were obtained by condensation reactions of 2,6-diformyl-p-cresol with N,N-dimethyl-ethylenediamine (HL1), 2-aminomethyl-pyridine (HL2), and 2-aminoethyl-pyridine (HL3), respectively. The cytotoxic/cytostatic and genotoxic effects in cultured human MCF-7 (luminal type A breast cancer), MDA-MB-231 (triple negative breast cancer), HeLa (cervical carcinoma), and Lep-3 (non-tumor embryonal fibroblastoid cells) were studied. The investigations were performed by thiazolyl blue tetrazolium bromide test (MTT test), neutral red uptake cytotoxicity assay, crystal violet staining, hematoxylin and eosin staining, double staining with acridine orange and propidium iodide, AnnexinV/FITC, and Comet assay in short-term experiments (24-72 h, with monolayer cell cultures) as well as by 3D colony-forming method in long-term experiments (28 days, with 3D cancer cell colonies). The results obtained revealed that: (i) applied at a concentration range of 0.1-100 μg mL-1, the compounds investigated decrease in a time- and concentration-dependent manner the viability and/or proliferation of the treated cells; (ii) complexes of {Zn(II)Au(I)} show relatively higher cytotoxic/genotoxic activity and antitumor potential as compared to {Zn(II)Ag(I)}; (iii) some of the complexes demonstrate more pronounced cytotoxic potential than commercially available antitumor agents cisplatin, oxaliplatin, and epirubicin.
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Affiliation(s)
- Tania Zhivkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 25, Sofia 1113, Bulgaria.
| | - Daniela C Culita
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania.
| | - Abedulkadir Abudalleh
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 25, Sofia 1113, Bulgaria.
| | - Lora Dyakova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 23, Sofia 1113, Bulgaria
| | - Teodora Mocanu
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania.
| | - Augustin M Madalan
- Faculty of Chemistry, University of Bucharest, Regina Elisabeta Blvd. 4-12, 030018 Bucharest, Romania
| | - Milena Georgieva
- Institute of Molecular Biology "Roumen Tsanev", Acad. Georgi Bonchev Str., Bl. 21, Sofia 1113, Bulgaria
| | - George Miloshev
- Institute of Molecular Biology "Roumen Tsanev", Acad. Georgi Bonchev Str., Bl. 21, Sofia 1113, Bulgaria
| | - Anamaria Hanganu
- Faculty of Chemistry, University of Bucharest, Regina Elisabeta Blvd. 4-12, 030018 Bucharest, Romania
- "C.D. Nenitzescu" Institute of Organic and Supramolecular Chemistry of the Romanian Academy, Splaiul Independentei 202B, Bucharest, Romania
| | - Gabriela Marinescu
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania.
| | - Radostina Alexandrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 25, Sofia 1113, Bulgaria.
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Alexandru MG, Ianculescu AC, Carp O, Culita DC, Preda S, Ene CD, Vasile BS, Surdu VA, Nicoara AI, Neatu F, Pintilie I, Visinescu D. Deciphering the role of water and a zinc-doping process in a polyol-based approach for obtaining Zn/Co/Al-based spinels: toward "green" mesoporous inorganic pigments. Dalton Trans 2023; 52:10386-10401. [PMID: 37401566 DOI: 10.1039/d3dt00972f] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Two new families of zinc/cobalt/aluminum-based pigments, with a unique composition, were obtained through the polyol method. The hydrolysis process of a mixture of Co(CH3COO)2, Zn(acac)2 and Al(acac)3 (acac- = acetylacetonate ion) in 1,4-butanediol afforded dark blue gels (wPZnxCo1-xAl), in the presence of a supplementary amount of water, and light green powders (PZnxCo1-xAl), respectively, for the water-free procedure (x = 0, 0.2, 0.4). The calcination of the precursors yielded dark green (wZnxCo1-xAl) and blue (ZnxCo1-xAl) products. XRD measurements and Rietveld refinement indicate the co-existence of three spinel phases, in different proportions: ZnxCo1-xAl2O4, Co3O4 and the defect spinel, γ-Al2.67O4. The Raman scattering and XPS spectra are in agreement with the compositions of the samples. The morphology of wZnxCo1-xAl consists of large and irregular spherical particle aggregates (ca. 5-100 mm). Smaller agglomerates (ca. 1-5 mm) with a unique silkworm cocoon-like hierarchical morphology composed of cobalt aluminate cores covered with flake-like alumina shells are formed for ZnxCo1-xAl. TEM and HR-TEM analyses revealed the formation of crystalline, polyhedral particles of 7-43 nm sizes for wZnxCo1-xAl, while for ZnxCo1-xAl, a duplex-type morphology, with small (7-13 nm) and larger (30-40 nm) particles, was found. BET assessment showed that both series of oxides are mesoporous materials, with different pore structures, with the water-free samples exhibiting the largest surface areas due, most likely, to the high percent of aluminum oxide. A chemical mechanism is proposed to highlight the role of the water amount and the nature of the starting compounds in the hydrolysis reaction products and, further, in the morpho-structural features and composition of the resulting spinel oxides. The CIE L*a*b* and C* colorimetric parameters indicate that the pigments are bright, with a moderate degree of luminosity, presenting an outstanding high blueness.
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Affiliation(s)
- Maria-Gabriela Alexandru
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Adelina-Carmen Ianculescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, 060042, Romania.
| | - Oana Carp
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Daniela C Culita
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Silviu Preda
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Cristian D Ene
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, 060042, Romania.
| | - Vasile-Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, 060042, Romania.
| | - Adrian-Ionut Nicoara
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, 060042, Romania.
| | - Florentina Neatu
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest-Magurele 077125, Romania
| | - Ioana Pintilie
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest-Magurele 077125, Romania
| | - Diana Visinescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.
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Petcu G, Papa F, Anghel EM, Atkinson I, Preda S, Somacescu S, Culita DC, Baran A, Ciobanu EM, Jecu LM, Constantin M, Parvulescu V. Effects of Aluminosilicate Gel Treatment and TiO 2 Loading on Photocatalytic Properties of Au-TiO 2/Zeolite Y. Gels 2023; 9:503. [PMID: 37367173 DOI: 10.3390/gels9060503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
The present work reports the synthesis of efficient Ti-Au/zeolite Y photocatalysts by different processing of aluminosilicate gel and studies the effect of titania content on the structural, morphological, textural, and optical properties of the materials. The best characteristics of zeolite Y were obtained by aging the synthesis gel in static conditions and mixing the precursors under magnetic stirring. Titania (5, 10, 20%) and gold (1%) species were incorporated in zeolite Y support by the post-synthesis method. The samples were characterized by X-ray diffraction, N2-physisorption, SEM, Raman, UV-Vis and photoluminescence spectroscopy, XPS, H2-TPR, and CO2-TPD. The photocatalyst with the lowest TiO2 loading shows only metallic Au on the outermost surface layer, while a higher content favors the formation of additional species such as: cluster type Au, Au1+, and Au3+. A high TiO2 content contributes to increasing the lifetime of photogenerated charge careers, and the adsorption capacity of the pollutant. Therefore, an increase in the photocatalytic performances (evaluated in degradation of amoxicillin in water under UV and visible light) was evidenced with the titania content. The effect is more significant in visible light due to the surface plasmon resonance (SPR) effect of gold interacting with the supported titania.
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Affiliation(s)
- Gabriela Petcu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Florica Papa
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Elena Maria Anghel
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Irina Atkinson
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Silviu Preda
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Simona Somacescu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Daniela C Culita
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Adriana Baran
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Elena Madalina Ciobanu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Luiza Maria Jecu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Mariana Constantin
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Viorica Parvulescu
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
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Marinescu G, Culita DC, Mocanu T, Mitran RA, Petrescu S, Stan MS, Chifiriuc MC, Popa M. New Nanostructured Materials Based on Mesoporous Silica Loaded with Ru(II)/Ru(III) Complexes with Anticancer and Antimicrobial Properties. Pharmaceutics 2023; 15:pharmaceutics15051458. [PMID: 37242698 DOI: 10.3390/pharmaceutics15051458] [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: 03/16/2023] [Revised: 05/08/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
A new series of nanostructured materials was obtained by functionalization of SBA-15 mesoporous silica with Ru(II) and Ru(III) complexes bearing Schiff base ligands derived from salicylaldehyde and various amines (1,2-diaminocyclohexane, 1,2-phenylenediamine, ethylenediamine, 1,3-diamino-2-propanol, N,N-dimethylethylenediamine, 2-aminomethyl-pyridine, and 2-(2-aminoethyl)-pyridine). The incorporation of ruthenium complexes into the porous structure of SBA-15 and the structural, morphological, and textural features of the resulting nanostructured materials were investigated by FTIR, XPS, TG/DTA, zeta potential, SEM, and N2 physisorption. The ruthenium complex-loaded SBA-15 silica samples were tested against A549 lung tumor cells and MRC-5 normal lung fibroblasts. A dose-dependent effect was observed, with the highest antitumoral efficiency being recorded for the material containing [Ru(Salen)(PPh3)Cl] (50%/90% decrease in the A549 cells' viability at a concentration of 70 μg/mL/200 μg/mL after 24 h incubation). The other hybrid materials have also shown good cytotoxicity against cancer cells, depending on the ligand included in the ruthenium complex. The antibacterial assay revealed an inhibitory effect for all samples, the most active being those containing [Ru(Salen)(PPh3)Cl], [Ru(Saldiam)(PPh3)Cl], and [Ru(Salaepy)(PPh3)Cl], especially against Staphylococcus aureus and Enterococcus faecalis Gram-positive strains. In conclusion, these nanostructured hybrid materials could represent valuable tools for the development of multi-pharmacologically active compounds with antiproliferative, antibacterial, and antibiofilm activity.
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Affiliation(s)
- Gabriela Marinescu
- Ilie Murgulescu Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Daniela C Culita
- Ilie Murgulescu Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Teodora Mocanu
- Ilie Murgulescu Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Raul-Augustin Mitran
- Ilie Murgulescu Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Simona Petrescu
- Ilie Murgulescu Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Miruna S Stan
- Faculty of Biology, University of Bucharest, 90 Panduri Street, 050663 Bucharest, Romania
| | - Mariana C Chifiriuc
- Faculty of Biology, University of Bucharest, 90 Panduri Street, 050663 Bucharest, Romania
| | - Marcela Popa
- Faculty of Biology, University of Bucharest, 90 Panduri Street, 050663 Bucharest, Romania
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Vlaicu ID, Stefan M, Radu C, Culita DC, Radu D, Ghica D. Atomic scale insight into the decomposition of nanocrystalline zinc hydroxynitrate toward ZnO using Mn2+ paramagnetic probes. Front Chem 2023; 11:1154219. [PMID: 37090252 PMCID: PMC10117659 DOI: 10.3389/fchem.2023.1154219] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
Layered zinc hydroxynitrate (ZHN), with the chemical formula Zn5 (OH)8 (NO3)2·2H2O, exhibits a range of special properties such as anion-exchange and intercalation capacity, as well as biocompatibility, making it attractive for a large variety of applications in fields from nanotechnology to healthcare and agriculture. In this study nanocrystalline ZHN doped with 1,000 ppm Mn2+ was prepared by two synthesis methods (coprecipitation and solid state reaction) using similar environment-friendly precursors. The complex morpho-structural [X-ray diffraction, scanning and transmission electron microscopy, textural analysis] and spectroscopic [Fourier transform infrared and electron paramagnetic resonance (EPR)] characterization of the two ZHN nanopowders showed similar crystalline structures with Mn2+ ions localized in the nanocrystals volume, but with differences in their morphological and textural characteristics, as well as in the doping efficiency. ZHN obtained by coprecipitation consists of larger nanoplatelets with more than two times larger specific surface area and pore volume, as well as a dopant concentration than in the ZHN sample obtained by solid state reaction. The thermal stability and the on-set of the structural phase transformation have been investigated at atomic scale with high accuracy by EPR, using Mn2+ as paramagnetic probes. The on-set of the ZHN structural phase transformation toward ZnO was observed by EPR to take place at 110°C and 130°C for the samples prepared by coprecipitation and solid state reaction, respectively, evidencing a manganese induced local decrease of the transformation temperature. Our results contribute to the selection of the most appropriate ZHN synthesis method for specific applications and in the development of new green, cost-effective synthesis routes for Mn2+ doped nano-ZnO.
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Affiliation(s)
| | - Mariana Stefan
- National Institute of Materials Physics, Magurele, Romania
| | - Cristian Radu
- National Institute of Materials Physics, Magurele, Romania
- Faculty of Physics, University of Bucharest, Magurele, Romania
| | - Daniela C. Culita
- Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy, Bucharest, Romania
| | - Dana Radu
- National Institute of Materials Physics, Magurele, Romania
| | - Daniela Ghica
- National Institute of Materials Physics, Magurele, Romania
- *Correspondence: Daniela Ghica,
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8
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Dinev D, Popova KB, Zhivkova T, Dyakova L, Abudalleh A, Alexandrova R, Culita DC, Mocanu T, Maxim C, Marinescu G. Synthesis, structural characterization, and cytotoxic activity in tumor cells of Cu(II) and Co(II) complexes with
o
‐vanillin amino acids Schiff bases. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Desislav Dinev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Katya B. Popova
- Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria
| | - Tanya Zhivkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Lora Dyakova
- Institute of Neurobiology Bulgarian Academy of Sciences Sofia Bulgaria
| | - Abedullkader Abudalleh
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Radostina Alexandrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Daniela C. Culita
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
| | - Teodora Mocanu
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
| | - Catalin Maxim
- Faculty of Chemistry, Inorganic Chemistry Laboratory University of Bucharest Bucharest Romania
| | - Gabriela Marinescu
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
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9
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Jinga LI, Popescu-Pelin G, Socol G, Mocanu S, Tudose M, Culita DC, Kuncser A, Ionita P. Chemical Degradation of Methylene Blue Dye Using TiO 2/Au Nanoparticles. Nanomaterials (Basel) 2021; 11:1605. [PMID: 34207350 PMCID: PMC8234427 DOI: 10.3390/nano11061605] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/10/2021] [Accepted: 06/16/2021] [Indexed: 12/11/2022]
Abstract
Gold nanoparticles (~10 nm) were deposited on titanium dioxide nanoparticles (~21 nm) and the material obtained was characterized using IR, UV-Vis, N2 adsorption-desorption isotherm, DLS, EDS (EDX), TEM, XPS, and XRD techniques. It was found that the methylene blue dye is degraded in the presence of this material when using hydrogen peroxide as the oxidant. Tests were performed at 2, 4, 6, and 24 h, with hydrogen peroxide contents varying from 1 to 5 mg/mL. Longer exposure time and a higher content of oxidant led to the degradation of methylene blue dye at up to 90%. The material can be reused several times with no loss of activity.
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Affiliation(s)
- Luiza Izabela Jinga
- Faculty of Chemistry, University of Bucharest, 90 Panduri, 050663 Bucharest, Romania;
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Gianina Popescu-Pelin
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Gabriel Socol
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Sorin Mocanu
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Madalina Tudose
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Daniela C. Culita
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Andrei Kuncser
- National Institute of Materials Physics, 077125 Magurele, Romania;
| | - Petre Ionita
- Faculty of Chemistry, University of Bucharest, 90 Panduri, 050663 Bucharest, Romania;
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10
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Romanitan C, Varasteanu P, Culita DC, Bujor A, Tutunaru O. X-ray scattering profiles: revealing the porosity gradient in porous silicon. J Appl Crystallogr 2021. [DOI: 10.1107/s1600576721003484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Porous silicon layers with different porosities were prepared by adjusting the anodization current density of the electrochemical etching process, starting from highly doped p-type crystalline silicon wafers. The microstructural parameters of the porous layers were assessed by high-resolution X-ray diffraction, total external reflection, scanning electron microscopy and nitrogen adsorption–desorption analysis. Furthermore, both the surface porosity and the mean porosity for the entire volume of the samples were estimated by employing total external reflection measurements and X-ray reciprocal-space mapping, respectively. The results clearly indicate that the surface porosity is different from the mean porosity, and the presence of a depth porosity gradient is suggested. To evaluate the porosity gradient in a nondestructive way, a new laboratory method using the grazing-incidence X-ray diffraction technique is reported. It is based on the analysis of the X-ray scattering profiles of the porous layers to obtain the static Debye–Waller factors. In this way, a description of the porosity gradient in a quantitative framework becomes possible, and, as a result, it was shown that the porosity increases exponentially with the X-ray penetration depth. Moreover, a strong dependence between the porosity gradient and the anodization current was demonstrated. Thus, in the case of the lowest anodization current (e.g. 50 mA cm−2) a variation of only 15% of the porosity from the surface to the interface is found, but when applying a high anodization current of 110 mA cm−2 the porosity close to the bulk interface is almost three times higher than at the surface.
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Ciobanu M, Pirvu L, Paun G, Savin S, Albu BG, Munteanu C, Cusu JP, Atkinson I, Culita DC, Petcu G, Parvulescu V. Development of a new (bio)hybrid matrix based on Althaea officinalis and Betonica officinalis extracts loaded into mesoporous silica nanoparticles for bioactive compounds with therapeutic applications. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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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Culita DC, Simonescu CM, Patescu RE, Stanica N. Chitosan-based Magnetic Composites - Efficient Adsorbents for Removal of Pb(II) and Cu(II) from Aqueous Mono and Bicomponent Solutions. Rev Chim 2018. [DOI: 10.37358/rc.18.9.6527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A series of three chitosan-based magnetic composites was prepared through a simple coprecipitation method. It was investigated the influence of mass ratio between chitosan and magnetite on the physical and chemical properties of the composites in order to establish the optimum conditions for obtaining a composite with good adsorption capacity for Pb(II) and Cu(II) from mono and bicomponent aqueous solutions. It was found that the microspheres prepared using mass ratio chitosan / magnetite 1.25/1, having a saturation magnetization of 15 emu g--1, are the best to be used as adsorbent for the metal ions. The influence of different parameters such as initial pH values, contact time, initial concentration of metal ions, on the adsorption of Pb(II) and Cu(II) onto the chitosan-based magnetic adsorbent was investigated in details. The adsorption process fits the pseudo-second-order kinetic model in both mono and bicomponent systems, and the maximum adsorption capacities calculated on the basis of the Langmuir model were 79.4 mg g--1 for Pb(II) and 48.5 mg g--1 for Cu(II) in monocomponent systems, while in bicomponent systems were 88.3 and 49.5 mg g--1, respectively. The results revealed that the as prepared chitosan-based magnetic adsorbent can be an effective and promising adsorbent for Pb(II) and Cu(II) from mono and bicomponent aqueous solutions.
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Rusen E, Diacon A, Mocanu A, Culita DC, Dinescu A, Zecheru T. “A real” emulsion polymerization using simple ATRP reaction in the presence of an oligo-initiator with a dual activity of emulsifier and initiator. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.062] [Citation(s) in RCA: 4] [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: 01/08/2023]
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14
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Mindru I, Gingasu D, Diamandescu L, Patron L, Marinescu G, Culita DC, Calderon-Moreno JM, Preda S, Oprea O, Parvulescu V. CoFe2−xCrxO4 ferrites: synthesis, characterization and their catalytic activity. Chem Pap 2018. [DOI: 10.1007/s11696-018-0553-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Mousa NE, Simonescu CM, Patescu RE, Lavric V, Culita DC. Regeneration of Calcium Alginate and Chitosan Coated Calcium Alginate Sorbents to be Reused for Lead (II) Removal from Aqueous Solutions. Rev Chim 2017. [DOI: 10.37358/rc.17.9.5808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The application of biopolymer-based sorbents in solving some environmental problems such as the removal and recovery of heavy metals from natural polluted water and wastewater has received lately a lot of attention due to their unique characteristics. The fundamental properties that recommend the usage of biopolymers-based sorbents for environmental remediation are: high selectivity and sorption capacity, renewability, safe manipulation, sorption capacity increase through simple physical and chemical methods, easy separation from treated water, and easy regeneration and reuse for repetitive sorption-desorption cycles. Accordingly, this research study has as purpose to present the results related to the usage of two types of alginate sorbents (calcium alginate and chitosan coated calcium alginate) in four repetitive lead(II) ions sorption-desorption cycles and to examine the influence of desorption agents on structural sorbent�s characteristics. The results obtained showed that both calcium alginate and chitosan coated calcium alginate are good stable sorbents to be used in lead(II) ions sorption-desorption cycles.
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Tudose M, Culita DC, Musuc AM, Marinescu G, Somacescu S, Munteanu C, Bleotu C, Chifiriuc MC. Multifunctional Silver Nanoparticles-Decorated Silica Functionalized with Retinoic Acid with Anti-Proliferative and Antimicrobial Properties. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0407-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Culita DC, Simonescu CM, Patescu RE, Dragne M, Stanica N, Oprea O. o-Vanillin functionalized mesoporous silica – coated magnetite nanoparticles for efficient removal of Pb(II) from water. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.04.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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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18
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Patrinoiu G, Calderon-Moreno JM, Birjega R, Culita DC, Somacescu S, Musuc AM, Spataru T, Carp O. Sustainable one-pot integration of ZnO nanoparticles into carbon spheres: manipulation of the morphological, optical and electrochemical properties. Phys Chem Chem Phys 2016; 18:30794-30807. [DOI: 10.1039/c6cp05911b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tailored ZnO–C composite spheres were developed using a sustainable and scalable hydrothermal procedure with the appropriate subsequent thermal processing.
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Affiliation(s)
- Greta Patrinoiu
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | | | - Ruxandra Birjega
- Photonic Processing of Advanced Materials
- National Institute for Lasers
- Plasma and Radiation Physics
- 077125 Bucharest
- Romania
| | - Daniela C. Culita
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Simona Somacescu
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Adina M. Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Tanta Spataru
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Oana Carp
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
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Gingasu D, Diamandescu L, Mindru I, Marinescu G, Culita DC, Calderon-Moreno JM, Preda S, Bartha C, Patron L. Chromium Substituted Cobalt Ferrites by Glycine-Nitrates Process. CROAT CHEM ACTA 2015. [DOI: 10.5562/cca2743] [Citation(s) in RCA: 6] [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: 11/01/2022] Open
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Visinescu D, Scurtu M, Negrea R, Birjega R, Culita DC, Chifiriuc MC, Draghici C, Moreno JC, Musuc AM, Balint I, Carp O. Additive-free 1,4-butanediol mediated synthesis: a suitable route to obtain nanostructured, mesoporous spherical zinc oxide materials with multifunctional properties. RSC Adv 2015. [DOI: 10.1039/c5ra20224h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A family of mesoporous, self-aggregated zinc oxide materials with spherical morphologies of high crystalline quality, is obtained through a facile, additive-free polyol procedure.
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Affiliation(s)
- Diana Visinescu
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Mariana Scurtu
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Raluca Negrea
- National Institute of Materials Physics
- Magurele
- Romania
| | - Ruxandra Birjega
- National Institute for Lasers, Plasma and Radiation Physics
- 077125 Bucharest
- Romania
| | - Daniela C. Culita
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | | | | | - Jose Calderon Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Ioan Balint
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
| | - Oana Carp
- “Ilie Murgulescu” Institute of Physical Chemistry
- Romanian Academy
- 060021 Bucharest
- Romania
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Patrinoiu G, Calderón-Moreno JM, Culita DC, Birjega R, Ene R, Carp O. Carbonaceous spheres—an unusual template for solid metal oxide mesoscale spheres: Application to ZnO spheres. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.03.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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