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Bonanni V, Gianoncelli A. Soft X-ray Fluorescence and Near-Edge Absorption Microscopy for Investigating Metabolic Features in Biological Systems: A Review. Int J Mol Sci 2023; 24:ijms24043220. [PMID: 36834632 PMCID: PMC9960606 DOI: 10.3390/ijms24043220] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/13/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
Scanning transmission X-ray microscopy (STXM) provides the imaging of biological specimens allowing the parallel collection of localized spectroscopic information by X-ray fluorescence (XRF) and/or X-ray Absorption Near Edge Spectroscopy (XANES). The complex metabolic mechanisms which can take place in biological systems can be explored by these techniques by tracing even small quantities of the chemical elements involved in the metabolic pathways. Here, we present a review of the most recent publications in the synchrotrons' scenario where soft X-ray spectro-microscopy has been employed in life science as well as in environmental research.
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Žižić M, Stanić M, Aquilanti G, Bajuk-Bogdanović D, Branković G, Rodić I, Živić M, Zakrzewska J. Biotransformation of selenium in the mycelium of the fungus Phycomyces blakesleeanus. Anal Bioanal Chem 2022; 414:6213-6222. [PMID: 35759022 DOI: 10.1007/s00216-022-04191-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/14/2022] [Accepted: 06/21/2022] [Indexed: 11/01/2022]
Abstract
Biotransformation of toxic selenium ions to non-toxic species has been mainly focused on biofortification of microorganisms and production of selenium nanoparticles (SeNPs), while far less attention is paid to the mechanisms of transformation. In this study, we applied a combination of analytical techniques with the aim of characterizing the SeNPs themselves as well as monitoring the course of selenium transformation in the mycelium of the fungus Phycomyces blakesleeanus. Red coloration and pungent odor that appeared after only a few hours of incubation with 10 mM Se+4 indicate the formation of SeNPs and volatile methylated selenium compounds. SEM-EDS confirmed pure selenium NPs with an average diameter of 57 nm, which indicates potentially very good medical, optical, and photoelectric characteristics. XANES of mycelium revealed concentration-dependent mechanisms of reduction, where 0.5 mM Se+4 led to the predominant formation of Se-S-containing organic molecules, while 10 mM Se+4 induced production of biomethylated selenide (Se-2) in the form of volatile dimethylselenide (DMSe) and selenium nanoparticles (SeNPs), with the SeNPs/DMSe ratio rising with incubation time. Several structural forms of elemental selenium, predominantly monoclinic Se8 chains, together with trigonal Se polymer chain, Se8 and Se6 ring structures, were detected by Raman spectroscopy.
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Affiliation(s)
- Milan Žižić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia.
| | - Marina Stanić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia
| | | | - Danica Bajuk-Bogdanović
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Goran Branković
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia
| | - Ivanka Rodić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia
| | - Miroslav Živić
- Faculty of Biology, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Joanna Zakrzewska
- Institute of General and Physical Chemistry, Studentski trg 12-16, 11000, Belgrade, Serbia
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Kalniņa D, Levina A, Pei A, Gross KA, Lay PA. Synthesis, characterization and in vitro anti-cancer activity of vanadium-doped nanocrystalline hydroxyapatite. NEW J CHEM 2019. [DOI: 10.1039/c9nj03406d] [Citation(s) in RCA: 9] [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: 11/21/2022]
Abstract
Nanocrystalline V(v)-doped hydroxyapatite and its reduced analogue (V(v) and V(iv) mixture) show promising in vitro cytotoxicity against cultured human bone cancer cells.
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Affiliation(s)
- Daina Kalniņa
- Faculty of Materials Science and Applied Chemistry
- Riga Technical University
- Riga LV1658
- Latvia
- School of Chemistry
| | - Aviva Levina
- School of Chemistry
- University of Sydney
- Sydney
- Australia
| | - Alexander Pei
- School of Chemistry
- University of Sydney
- Sydney
- Australia
- Exchange Student from Boston University
| | - Kārlis Agris Gross
- Faculty of Materials Science and Applied Chemistry
- Riga Technical University
- Riga LV1658
- Latvia
| | - Peter A. Lay
- School of Chemistry
- University of Sydney
- Sydney
- Australia
- Sydney Analytical
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Hadžibrahimović M, Sužnjević D, Pastor F, Cvetić Antić T, Žižić M, Zakrzewska J, Živić M. The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake? Antonie Van Leeuwenhoek 2016; 110:365-373. [PMID: 27896685 DOI: 10.1007/s10482-016-0808-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 11/21/2016] [Indexed: 11/26/2022]
Abstract
The possibility of reduction of vanadate monomer in the mycelium of fungus Phycomyces blakesleeanus was investigated in this study by means of polarography. Control experiments were performed with vanadyl [V(IV)] and vanadate [V(V)] in 10 mM Hepes, pH 7.2. Addition of P. blakesleeanus mycelium resulted in disappearance of all V(IV) polarographic waves recorded in the control. This points to the uptake of all available V(IV) by the mycelium, up to 185 µmol/gFW, and suggests P. blakesleeanus as a potential agent in V(IV) bioremediation. Polarographic measurements of mycelium with low concentrations (0.1-1 mM) of V(V), that only allows the presence of monomer, showed that fungal mycelia removes around 27% of V(V) from the extracellular solution. Uptake was saturated at 104 ± 2 µmol/gFW which indicates excellent bioaccumulation capability of P. blakesleeanus. EPR, 51V NMR and polarographic experiments showed no indications of any measurable extracellular complexation of V(V) monomer with fungal exudates, reduction by the mycelium or adsorption to the cell wall. Therefore, in contrast to vanadium oligomers, vanadate monomer interactions with the mycelium are restricted to its transport into the fungal cell, probably by a phosphate transporter.
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Affiliation(s)
- Mirzeta Hadžibrahimović
- Department of Biomedical Sciences, State University of Novi Pazar, Vuka Karadžića bb, 36300, Novi Pazar, Serbia
| | - Desanka Sužnjević
- Institute of General and Physical Chemistry, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Ferenc Pastor
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Tijana Cvetić Antić
- University of Belgrade-Faculty of Biology, Studentski trg 16, 11000, Belgrade, Serbia
| | - Milan Žižić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia
| | - Joanna Zakrzewska
- Institute of General and Physical Chemistry, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Miroslav Živić
- University of Belgrade-Faculty of Biology, Studentski trg 16, 11000, Belgrade, Serbia.
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Žižić M, Miladinović Z, Stanić M, Hadžibrahimović M, Živić M, Zakrzewska J. 51V NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium. Res Microbiol 2016; 167:521-8. [DOI: 10.1016/j.resmic.2016.04.012] [Citation(s) in RCA: 8] [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] [Received: 02/04/2016] [Revised: 04/27/2016] [Accepted: 04/28/2016] [Indexed: 01/18/2023]
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