1
|
Vanheukelom M, Sweeck L, Almahayni T, De Bruyn M, Steegmans P, Fondu L, Van Gompel A, Van Hees M, Wannijn J, Smolders E. Highly weathered mineral soils have highest transfer risk of radiocaesium contamination after a nuclear accident: A global soil-plant study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:173583. [PMID: 38851332 DOI: 10.1016/j.scitotenv.2024.173583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024]
Abstract
Accidental release of radiocaesium (137Cs) from nuclear power plants may result in long-term contamination of environmental and food production systems. Assessment of food chain contamination with 137Cs relies on 137Cs soil-to-plant transfer data and models mainly available for regions affected by the Chornobyl and Fukushima accidents. Similar data and models are lacking for other regions. Such information is needed given the global expansion of nuclear energy. We collected 38 soils worldwide of contrasting parent materials and weathering stages. The soils were spiked with 137Cs and sown with ryegrass in greenhouse conditions. The 137Cs grass-soil concentration ratio varied four orders of magnitude among soils. It was highest in Ferralsols due to the low 137Cs interception potential of kaolinite clay and the low exchangeable potassium in these soils. Our results demonstrate, for the first time, the high plant uptake of 137Cs in tropical soils. The most recent 137Cs transfer model, mainly calibrated to temperate soils dominated by weathered micas, poorly predicts the underlying processes in tropical soils but, due to compensatory effect, still reasonably well predicts 137Cs bioavailability across all soils (R2 = 0.8 on a log-log scale).
Collapse
Affiliation(s)
- Margot Vanheukelom
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium.
| | - Lieve Sweeck
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium
| | - Talal Almahayni
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium
| | - Mara De Bruyn
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Pieter Steegmans
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Lore Fondu
- Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Axel Van Gompel
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium
| | - May Van Hees
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium
| | - Jean Wannijn
- Biosphere Impact Studies, Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400 Mol, Belgium
| | - Erik Smolders
- Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| |
Collapse
|
2
|
Schmitt KE, Fink LJ, Jantschke A, Vigelius D, Schöne BR. Isotopic and mineralogic bias introduced by pulverization of aragonite. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9842. [PMID: 38923691 DOI: 10.1002/rcm.9842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024]
Abstract
RATIONALE Stable carbon and oxygen isotope data of biogenic and abiogenic aragonite are of fundamental relevance in paleoclimate research. Wet-chemical analysis of such materials requires well-homogenized, fine-grained powder. In the present study, the effect of different grinding/milling methods on sample homogeneity and the potential risk of unintentional calcite formation and isotope shift were evaluated. METHODS Shells of Arctica islandica and aragonite sputnik crystals were pulverized using a set of commonly used methods, including a hand-held drill, a vibromill operated at various settings (with and without liquid nitrogen cooling, changes in ball diameters, frequencies, and processing durations), and an agate mortar and pestle. Stable isotope values were measured using an isotope ratio mass spectrometer operated in continuous flow mode. Identification of mineral phases was obtained by powder X-ray diffraction (PXRD), Raman spectroscopy, and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Calcite content was quantified by PXRD Rietveld refinement. RESULTS Samples showed substantial homogeneity, in particular after vibromilling (duration 3-10 min). More vigorous grinding resulted in larger fractions of calcite (0.5-4.2 wt%) and a concomitant δ18O and δ13C decrease, specifically in bivalve shells. The only method for producing pure aragonite powder was by pounding the aragonite sputniks manually with an agate mortar and pestle. CONCLUSIONS None of the studied, commonly used machine-based pulverization methods produced pure aragonite powder from samples consisting originally of aragonite. These findings have significant implications for light-stable isotope-based paleoclimate reconstructions. Except for abiogenic aragonite powder produced by pounding in an agate mortar, paleotemperatures would be overestimated.
Collapse
Affiliation(s)
| | - Laura J Fink
- Institute of Geosciences, University of Mainz, Mainz, Germany
| | - Anne Jantschke
- Institute of Geosciences, University of Mainz, Mainz, Germany
| | - Daniel Vigelius
- Institute of Geosciences, University of Mainz, Mainz, Germany
| | - Bernd R Schöne
- Institute of Geosciences, University of Mainz, Mainz, Germany
| |
Collapse
|
3
|
Rizaal M, Nakajima K. Advances in understanding cesium retention on calcium silicate material. CHEMOSPHERE 2024; 363:142870. [PMID: 39019175 DOI: 10.1016/j.chemosphere.2024.142870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/04/2024] [Accepted: 07/14/2024] [Indexed: 07/19/2024]
Abstract
Retention or trapping of cesium, one of the radiologically important fission products, in the nuclear reactor becomes a great concern as the occurrence may affect radioactivity in the long term or its environmental fate. Herein the chemical compound of cesium that had been largely trapped on the nuclear reactor structural material of (calcium silicate) thermal insulator in a simulated nuclear accident condition was investigated. A combined pre- and post-water dissolution analysis through infrared (IR) spectroscopy and optical emission spectroscopy (OES) was explored to resolve the characterization difficulty encountered in conventional X-ray diffraction analysis reported in the previous works. This method allowed us to identify for the first time the related large amount of water-soluble cesium in the calcium silicate material after a high-temperature chemical reaction as cesium metasilicate (Cs2SiO3). It was evidenced by similar vibrational characteristics of the material to that in the synthesized Cs2SiO3 as well as based on the dissolved Cs and Si in the leaching water having a molar ratio of 2.16 ± 0.33. The corresponding 79-98% of the retained cesium in calcium silicate materials in the case study of 700 and 800 °C reactions was of this compound, emphasizing its significance once formed. Thermodynamic considerations further corroborated the higher stability of Cs2SiO3 in the cesium-calcium silicate reaction than other cesium silicates such as Cs2Si4O9, Cs2Si2O5, or Cs6Si2O7. This clearly poses a high environmental risk due to the volatility of cesium metasilicate as it may spread out further through the water leak path from a damaged nuclear reactor.
Collapse
Affiliation(s)
- Muhammad Rizaal
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan.
| | - Kunihisa Nakajima
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan.
| |
Collapse
|
4
|
Simonnet T, Grangeon S, Claret F, Maubec N, Fall MD, Harba R, Galerne B. Phase quantification using deep neural network processing of XRD patterns. IUCRJ 2024; 11:859-870. [PMID: 39133544 PMCID: PMC11364039 DOI: 10.1107/s2052252524006766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 07/10/2024] [Indexed: 08/13/2024]
Abstract
Mineral identification and quantification are key to the understanding and, hence, the capacity to predict material properties. The method of choice for mineral quantification is powder X-ray diffraction (XRD), generally using a Rietveld refinement approach. However, a successful Rietveld refinement requires preliminary identification of the phases that make up the sample. This is generally carried out manually, and this task becomes extremely long or virtually impossible in the case of very large datasets such as those from synchrotron X-ray diffraction computed tomography. To circumvent this issue, this article proposes a novel neural network (NN) method for automating phase identification and quantification. An XRD pattern calculation code was used to generate large datasets of synthetic data that are used to train the NN. This approach offers significant advantages, including the ability to construct databases with a substantial number of XRD patterns and the introduction of extensive variability into these patterns. To enhance the performance of the NN, a specifically designed loss function for proportion inference was employed during the training process, offering improved efficiency and stability compared with traditional functions. The NN, trained exclusively with synthetic data, proved its ability to identify and quantify mineral phases on synthetic and real XRD patterns. Trained NN errors were equal to 0.5% for phase quantification on the synthetic test set, and 6% on the experimental data, in a system containing four phases of contrasting crystal structures (calcite, gibbsite, dolomite and hematite). The proposed method is freely available on GitHub and allows for major advances since it can be applied to any dataset, regardless of the mineral phases present.
Collapse
Affiliation(s)
- Titouan Simonnet
- Institut Denis Poisson, Université d’Orléans, Université de Tours, CNRS, France
- BRGM, 45060Orléans, France
- Laboratoire PRISME, Université d’Orléans, INSA Centre Val de Loire, France
| | | | | | | | - Mame Diarra Fall
- Institut Denis Poisson, Université d’Orléans, Université de Tours, CNRS, France
| | - Rachid Harba
- Laboratoire PRISME, Université d’Orléans, INSA Centre Val de Loire, France
| | - Bruno Galerne
- Institut Denis Poisson, Université d’Orléans, Université de Tours, CNRS, France
- Institut Universitaire de France (IUF)France
| |
Collapse
|
5
|
Splinter K, Möckel R, Hlawacek G, Lendzion-Bieluń Z. Studies of the Morphology of Hematite Synthesized from Waste Iron Sulfate. Molecules 2024; 29:3527. [PMID: 39124932 PMCID: PMC11314163 DOI: 10.3390/molecules29153527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 07/24/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Microwave-based reactions have gained traction in recent years due to their ability to enhance reaction rates and yield while reducing energy consumption. Also, according to the conception of 'waste to materials', various waste feeds are intensively sought to be tested. The experimental setup of this study involved varying pH levels, oxidation agents, and precipitation agents to optimize the synthesis process of iron red based on waste iron sulfate. The selection of oxidation and precipitation agents was found to significantly influence the pigment synthesis process. Various oxidizing agents, including hydrogen peroxide and atmospheric air, were evaluated for their effectiveness in promoting the oxidation of ferrous ions to ferric ions, essential for pigment formation. Additionally, different precipitation agents such as sodium hydroxide and ammonia solution were assessed for their ability to precipitate iron hydroxides and facilitate pigment particle formation. The characterization of synthesized pigments revealed promising results in terms of quality and color properties. Helium Ion Microscopy (HIM) analysis confirmed the formation of well-defined pigment particles with controlled morphology. X-ray diffraction (XRD) studies provided insights into the crystalline structure of the pigments, indicating the presence of characteristic iron oxide phases. By improving this technology, waste iron sulfate can be efficiently transformed into valuable iron pigments, offering a sustainable solution for waste management while meeting the growing demand for high-quality pigments.
Collapse
Affiliation(s)
- Kamila Splinter
- Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland;
| | - Robert Möckel
- Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Chemnitzer Str. 40, 09599 Freiberg, Germany;
| | - Gregor Hlawacek
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstrasse 400, 01328 Dresden, Germany;
| | - Zofia Lendzion-Bieluń
- Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland;
| |
Collapse
|
6
|
Garibay-Alvarado JA, Garcia-Zamarron DJ, Silva-Holguín PN, Donohue-Cornejo A, Cuevas-González JC, Espinosa-Cristóbal LF, Ruíz-Baltazar ÁDJ, Reyes-López SY. Polymer-Based Hydroxyapatite-Silver Composite Resin with Enhanced Antibacterial Activity for Dental Applications. Polymers (Basel) 2024; 16:2017. [PMID: 39065334 PMCID: PMC11280866 DOI: 10.3390/polym16142017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/06/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The primary objective of this investigation was to synthesize a resin incorporating nanoparticles of hydroxyapatite and silver (HA-NpsAg) to enhance biocompatibility and antimicrobial efficacy, thereby facilitating potential implementation within the dental industry. These enhancements aim to ensure reliable, durable, functional, and aesthetically pleasing restorations while concurrently reducing susceptibility to bacterial colonization within the oral cavity. Hydroxyapatite powders were prepared using the sol-gel method and doped with silver nanoparticles obtained by chemical reduction. The crystalline amorphous calcium phosphate powder had a particle size of 279 nm, and the silver nanoparticles had an average diameter of 26.5 nm. Resin spheres containing HA-NpsAg (RHN) were then synthesized at two concentrations (0.5% and 1%) by dissolving the initial monomer mixture in tetrahydrofuran. Subsequent antimicrobial evaluations were conducted via agar diffusion and turbidimetry, employing three strains of Gram-negative bacteria (E. coli, K. oxytoca, and P. aeruginosa) and three strains of Gram-positive bacteria (S. mutans, S. aureus, and B. subtilis). The findings revealed that P. aeruginosa exhibited maximum susceptibility to RHN powder at a concentration of 0.5%, while RHN powder at 1% concentration demonstrated maximal inhibition against S. aureus and S. mutans. Overall, our study highlights the successful synthesis of a dental resin with hydroxyapatite and silver nanoparticles, exhibiting bactericidal properties at low silver concentrations. These findings hold promise for enhancing dental materials with improved antimicrobial efficacy and clinical performance.
Collapse
Affiliation(s)
- Jesús Alberto Garibay-Alvarado
- Laboratorio de Materiales Híbridos Nanoestructurados, Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32300, Mexico; (J.A.G.-A.); (P.N.S.-H.); (Á.d.J.R.-B.)
| | - Diana Juana Garcia-Zamarron
- Programa de Maestría en Ciencias Odontológicas, Departamento de Estomatología, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Mexico; (D.J.G.-Z.); (A.D.-C.); (J.C.C.-G.); (L.F.E.-C.)
| | - Pamela Nair Silva-Holguín
- Laboratorio de Materiales Híbridos Nanoestructurados, Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32300, Mexico; (J.A.G.-A.); (P.N.S.-H.); (Á.d.J.R.-B.)
| | - Alejandro Donohue-Cornejo
- Programa de Maestría en Ciencias Odontológicas, Departamento de Estomatología, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Mexico; (D.J.G.-Z.); (A.D.-C.); (J.C.C.-G.); (L.F.E.-C.)
| | - Juan Carlos Cuevas-González
- Programa de Maestría en Ciencias Odontológicas, Departamento de Estomatología, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Mexico; (D.J.G.-Z.); (A.D.-C.); (J.C.C.-G.); (L.F.E.-C.)
| | - León Francisco Espinosa-Cristóbal
- Programa de Maestría en Ciencias Odontológicas, Departamento de Estomatología, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Mexico; (D.J.G.-Z.); (A.D.-C.); (J.C.C.-G.); (L.F.E.-C.)
| | - Álvaro de Jesús Ruíz-Baltazar
- Laboratorio de Materiales Híbridos Nanoestructurados, Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32300, Mexico; (J.A.G.-A.); (P.N.S.-H.); (Á.d.J.R.-B.)
- CONAHCYT-Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Santiago de Querétaro 76230, Mexico
| | - Simón Yobanny Reyes-López
- Laboratorio de Materiales Híbridos Nanoestructurados, Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32300, Mexico; (J.A.G.-A.); (P.N.S.-H.); (Á.d.J.R.-B.)
| |
Collapse
|
7
|
Feldman AD, Hausrath EM, Rampe EB, Tu V, Peretyazhko TS, DeFelice C, Sharp T. Fe-rich X-ray amorphous material records past climate and persistence of water on Mars. COMMUNICATIONS EARTH & ENVIRONMENT 2024; 5:364. [PMID: 38978761 PMCID: PMC11227439 DOI: 10.1038/s43247-024-01495-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 06/05/2024] [Indexed: 07/10/2024]
Abstract
X-ray amorphous material comprises 15-73 wt.% of sedimentary rocks and eolian sediments in Gale crater. This material is variably siliceous and iron rich but aluminum poor. The presence of volatiles is consistent with the existence of incipient weathering products. To better understand the implications of this material for past aqueous conditions on Mars, here we investigate X-ray amorphous material formation and longevity within terrestrial iron rich soils with varying ages and environmental conditions using bulk and selective dissolution methods, X-ray diffraction, and transmission electron microscopy. Results indicate that in situ aqueous alteration is required to concentrate iron into clay-size fraction material. Cooler climates promote the formation and persistence of X-ray amorphous material whereas warmer climates promote the formation of crystalline secondary phases. Iron rich X-ray amorphous material formation and persistence on Mars are therefore consistent with past cool and relatively wet environments followed by long-term cold and dry conditions.
Collapse
Affiliation(s)
- Anthony D. Feldman
- Present Address: Department of Geosciences, University of Nevada Las Vegas, Las Vegas, NV USA
- Present Address: Desert Research Institute, Las Vegas, NV USA
| | - Elisabeth M. Hausrath
- Present Address: Department of Geosciences, University of Nevada Las Vegas, Las Vegas, NV USA
| | - Elizabeth B. Rampe
- Astromaterials Research and Exploration Science Division, NASA Johnson Space Center, Houston, TX USA
| | - Valerie Tu
- Jacobs Technology, NASA Johnson Space Center, Houston, TX USA
| | | | - Christopher DeFelice
- Present Address: Department of Geosciences, University of Nevada Las Vegas, Las Vegas, NV USA
- Present Address: Pacific Northwest National Laboratory, Richland, WA USA
| | - Thomas Sharp
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ USA
| |
Collapse
|
8
|
Szymanski NJ, Byeon YW, Sun Y, Zeng Y, Bai J, Kunz M, Kim DM, Helms BA, Bartel CJ, Kim H, Ceder G. Quantifying the regime of thermodynamic control for solid-state reactions during ternary metal oxide synthesis. SCIENCE ADVANCES 2024; 10:eadp3309. [PMID: 38959320 PMCID: PMC11221506 DOI: 10.1126/sciadv.adp3309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/31/2024] [Indexed: 07/05/2024]
Abstract
The success of solid-state synthesis often hinges on the first intermediate phase that forms, which determines the remaining driving force to produce the desired target material. Recent work suggests that when reaction energies are large, thermodynamics primarily dictates the initial product formed, regardless of reactant stoichiometry. Here, we validate this principle and quantify its constraints by performing in situ characterization on 37 pairs of reactants. These experiments reveal a threshold for thermodynamic control in solid-state reactions, whereby initial product formation can be predicted when its driving force exceeds that of all other competing phases by ≥60 milli-electron volt per atom. In contrast, when multiple phases have a comparable driving force to form, the initial product is more often determined by kinetic factors. Analysis of the Materials Project data shows that 15% of possible reactions fall within the regime of thermodynamic control, highlighting the opportunity to predict synthesis pathways from first principles.
Collapse
Affiliation(s)
- Nathan J. Szymanski
- Department of Materials Science and Engineering, UC Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Young-Woon Byeon
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Yingzhi Sun
- Department of Materials Science and Engineering, UC Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Yan Zeng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jianming Bai
- Energy and Photon Sciences Directorate, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Martin Kunz
- The Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Dong-Min Kim
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Brett A. Helms
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Christopher J. Bartel
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Haegyeom Kim
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Gerbrand Ceder
- Department of Materials Science and Engineering, UC Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| |
Collapse
|
9
|
Montanari G, Marchini M, Martelli M, Maini L. Artificial vitriols: a contemporary interpretation of historical ingredients. RSC Adv 2024; 14:21538-21543. [PMID: 38979453 PMCID: PMC11228936 DOI: 10.1039/d4ra01896f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/27/2024] [Indexed: 07/10/2024] Open
Abstract
"Vitriol" is a term that appeared during the Middle-Ages to indicate a wide range of ingredients widely used both in medicinal and alchemical recipes. Green, blue, or white vitriols are easily associated with iron(ii), copper(ii), and zinc sulphate respectively thanks to the historical sources composed in the time period when the ancient and modern nomenclatures overlapped. However, other colours of vitriols are attested throughout history, such as yellow, red, or black. The identification of these compounds is significantly less straightforward, and often chalked up to Decknamen (code names) or unspecified impure ores. Moreover, from several sources it is apparent that some of these compounds are artificial, or at least the result of technical operations rather than mineral ores used as they are. By thermal manipulation of iron(ii) sulphate, we managed to identify several compounds that fit with historical descriptions, which were later characterized through XRPD. Moreover, by using a Kofler bench and variable temperature XRPD, we were able to further investigate the transitions between these phases.
Collapse
Affiliation(s)
| | | | | | - Lucia Maini
- Department of Chemistry "G. Ciamician", University of Bologna Italy
| |
Collapse
|
10
|
Schroedl P, Silverstein M, DiGregorio D, Blättler CL, Loyd S, Bradbury HJ, Edwards RL, Marlow J. Carbonate chimneys at the highly productive point Dume methane seep: Fine-scale mineralogical, geochemical, and microbiological heterogeneity reflects dynamic and long-lived methane-metabolizing habitats. GEOBIOLOGY 2024; 22:e12608. [PMID: 38946067 DOI: 10.1111/gbi.12608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/24/2024] [Accepted: 06/12/2024] [Indexed: 07/02/2024]
Abstract
Methane is a potent greenhouse gas that enters the marine system in large quantities at seafloor methane seeps. At a newly discovered seep site off the coast of Point Dume, CA, ~ meter-scale carbonate chimneys host microbial communities that exhibit the highest methane-oxidizing potential recorded to date. Here, we provide a detailed assessment of chimney geobiology through correlative mineralogical, geochemical, and microbiological studies of seven chimney samples in order to clarify the longevity and heterogeneity of these highly productive systems. U-Th dating indicated that a methane-driven carbonate precipitating system at Point Dume has existed for ~20 Kyr, while millimeter-scale variations in carbon and calcium isotopic values, elemental abundances, and carbonate polymorphs revealed changes in carbon source, precipitation rates, and diagenetic processes throughout the chimneys' lifespan. Microbial community analyses revealed diverse modern communities with prominent anaerobic methanotrophs, sulfate-reducing bacteria, and Anaerolineaceae; communities were more similar within a given chimney wall transect than in similar horizons of distinct structures. The chimneys represent long-lived repositories of methane-oxidizing communities and provide a window into how carbon can be transformed, sequestered, and altered over millennia at the Point Dume methane seep.
Collapse
Affiliation(s)
- Peter Schroedl
- Department of Biology, Boston University, Boston, Massachusetts, USA
| | | | - Daisy DiGregorio
- Department of Biology, Boston University, Boston, Massachusetts, USA
| | - Clara L Blättler
- Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois, USA
| | - Sean Loyd
- Department of Geological Sciences, California State University Fullerton, Fullerton, California, USA
| | - Harold J Bradbury
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - R Lawrence Edwards
- Department of Earth and Environmental Science, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jeffrey Marlow
- Department of Biology, Boston University, Boston, Massachusetts, USA
| |
Collapse
|
11
|
Houben GJ, Lamparter A, Ufer K, Damian C, Boz D. New Insights into the Formation and Properties of Wellbore Skin: Why We Have to Rethink the Concept. GROUND WATER 2024; 62:548-559. [PMID: 38039098 DOI: 10.1111/gwat.13370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/19/2023] [Accepted: 10/24/2023] [Indexed: 12/03/2023]
Abstract
The deposition of fine-grained material of low permeability on the borehole wall during drilling (wellbore skin) is a common problem affecting the operation and efficiency of water wells. Here, we present new data and novel insights from four excavated dewatering wells from a lignite surface mine. All wells have the same age, are of similar construction, and were sampled at two different depths each. The thickness of the skin layer increases with depth. Its composition and permeability is strongly influenced by the surrounding aquifer material. Nonuniform sediments of low permeability result in less permeable wellbore skin deposits. The presence of discontinuities in the skin layer may be a determining feature for the resulting flow to wells, especially with skin layers of low permeability. The presence of naturally occurring swelling clay (smectite) provides the skin layer with a significant self-sealing capacity.
Collapse
Affiliation(s)
- Georg J Houben
- Federal Institute for Geosciences and Natural Resources, BGR, Stilleweg 2, 30655, Hannover, Germany
| | - Axel Lamparter
- Federal Institute for Geosciences and Natural Resources, BGR, Stilleweg 2, 30655, Hannover, Germany
| | - Kristian Ufer
- Federal Institute for Geosciences and Natural Resources, BGR, Stilleweg 2, 30655, Hannover, Germany
| | | | - Daniel Boz
- Lausitz Energie Bergbau AG (LEAG), Boxberg, Germany
| |
Collapse
|
12
|
Sorrentino GP, Guimaraes R, Cornelio A, Zanoletti A, Valentim B, Bontempi E. Mitigating CO 2 emissions through an industrial symbiosis approach: Leveraging cork ash carbonation. Heliyon 2024; 10:e32893. [PMID: 39027456 PMCID: PMC11254608 DOI: 10.1016/j.heliyon.2024.e32893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 07/20/2024] Open
Abstract
This study explores for the first time the potential use of carbonation as a method for managing cork ash, a byproduct of biomass waste incineration. Additionally, the cork ash was combined with fly ash from municipal solid waste incineration to leverage the carbonation reaction's ability to stabilize heavy metals. The findings suggest that subjecting biomass ash to carbonation can lead to the formation of mineral carbonates, effectively capturing CO2 and reducing its release into the atmosphere. The combination of various alkaline wastes and the stabilization of leachable heavy metals through carbonation reactions also opens opportunities for synergies between different industrial sectors. Finally, the study proposes a route for the obtained materials valorisation via 'end of waste': the reuse of the resulting materials as substitutes for natural resources, particularly in applications like building materials and polymer composites, can further enhance carbon dioxide savings.
Collapse
Affiliation(s)
- Giampiero Pasquale Sorrentino
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, Brescia, 25123, Italy
| | - Renato Guimaraes
- Earth Science Institute–Porto Pole, Department of Geosciences, Environment and Spatial Plannings, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, 4169-007, Portugal
| | - Antonella Cornelio
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, Brescia, 25123, Italy
| | - Alessandra Zanoletti
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, Brescia, 25123, Italy
| | - Bruno Valentim
- Earth Science Institute–Porto Pole, Department of Geosciences, Environment and Spatial Plannings, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, 4169-007, Portugal
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, Brescia, 25123, Italy
| |
Collapse
|
13
|
Fernandes RJC, Cardoso BD, Rodrigues ARO, Pires A, Pereira AM, Araújo JP, Pereira L, Coutinho PJG. Zinc/Magnesium Ferrite Nanoparticles Functionalized with Silver for Optimized Photocatalytic Removal of Malachite Green. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3158. [PMID: 38998250 PMCID: PMC11242515 DOI: 10.3390/ma17133158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024]
Abstract
Water pollution is a major environmental challenge. Due to the inefficiency of conventional wastewater treatment plants in degrading many organic complex compounds, these recalcitrant pollutants end up in rivers, lakes, oceans and other bodies of water, affecting the environment and human health. Semiconductor photocatalysis is considered an efficient complement to conventional methods, and the use of various nanomaterials for this purpose has been widely explored, with a particular focus on improving their activity under visible light. This work focuses on developing magnetic and photoactive zinc/magnesium mixed ferrites (Zn0.5Mg0.5Fe2O4) by sol-gel and solvothermal synthesis methods, which are two of the most important and efficient methods used for the synthesis of ferrite nanoparticles. The nanoparticles (NPs) synthesized by the sol-gel method exhibited an average size of 14.7 nm, while those synthesized by the solvothermal method had an average size of 17.4 nm. Both types possessed a predominantly cubic structure and demonstrated superparamagnetic behavior, reaching a magnetization saturation value of 60.2 emu g-1. Due to the high recombination rate of electrons/holes, which is an intrinsic feature of ferrites, surface functionalization with silver was carried out to enhance charge separation. The results demonstrated a strong influence of adsorption and of the deposition of silver. Several optimization steps were performed during synthesis, allowing us to create efficient catalysts, as proved by the almost full removal of the dye malachite green attaining 95.0% (at a rate constant of 0.091 min-1) and 87.6% (at a rate constant of 0.017 min-1) using NPs obtained by the sol-gel and solvothermal methods, respectively. Adsorption in the dark accounted for 89.2% of the dye removal for nanoparticles prepared by sol-gel and 82.8% for the ones obtained by the solvothermal method. These results make mixed zinc/magnesium ferrites highly promising for potential industrial application in effluent photoremediation using visible light.
Collapse
Affiliation(s)
- Ricardo J C Fernandes
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS-Associate Laboratory, 4710-057 Braga, Portugal
| | - Beatriz D Cardoso
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Rita O Rodrigues
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
| | - Ana Pires
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
- IFIMUP-Materials Physics Institute, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - André M Pereira
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
- IFIMUP-Materials Physics Institute, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - João P Araújo
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
- IFIMUP-Materials Physics Institute, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - Luciana Pereira
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS-Associate Laboratory, 4710-057 Braga, Portugal
| | - Paulo J G Coutinho
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET-Associate Laboratory, 4169-007 Porto, Portugal
| |
Collapse
|
14
|
Yamaguchi S, Tsunekawa I, Furuta M, Anilkumar C, Liao Y, Shiga T, Kodama T, Shiomi J. Anisotropic Thermal Conductivity Enhancement of the Aligned Metal-Organic Framework under Water Vapor Adsorption. J Phys Chem Lett 2024; 15:6628-6633. [PMID: 38888265 DOI: 10.1021/acs.jpclett.4c01244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Metal-organic frameworks (MOFs) exhibit high adsorption and catalytic activities for various gas species. Because gas adsorption can cause a temperature increase in the MOF, which decreases the capacity and adsorption rate, a strict evaluation of its effect on the thermal conductivity of MOFs is essential. In this study, the thermal conductivity measurement of the MOF under water vapor adsorption was performed using an oriented film of copper tetrakis(4-carboxyphenyl)porphyrin (Cu-TCPP) MOF. A recently developed bidirectional 3ω method enabled the anisotropic thermal conductivity measurement of layered Cu-TCPP while maintaining its ordered structure. The water adsorption was found to increase the thermal conductivity in both in-plane and cross-plane directions with different trends and magnitudes, owing to the structural anisotropy. Molecular dynamics simulations suggest that additional vibrational modes provided by the adsorbed water molecules were the reason for the thermal conductivity enhancement.
Collapse
Affiliation(s)
- Shingi Yamaguchi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Issei Tsunekawa
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Makito Furuta
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Chirag Anilkumar
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuxuan Liao
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takuma Shiga
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takashi Kodama
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Junichiro Shiomi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Engineering Innovation, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| |
Collapse
|
15
|
Remondina J, Portavoce A, Le Friec Y, Benoit D, Petroni E, Putero M. Exploring the evolution of mass density and thickness of N-doped Ge-rich GeSbTe during multistep crystallization. Sci Rep 2024; 14:14677. [PMID: 38918465 PMCID: PMC11199619 DOI: 10.1038/s41598-024-65828-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 06/24/2024] [Indexed: 06/27/2024] Open
Abstract
Among phase change materials, Ge-rich GeSbTe alloys (GGST) are key alloys for the next generation of embedded phase change memories because of their good thermal stability, allowing their use for the automotive applications. Several studies have investigated GGST crystallization, which takes place in several stages, including phase separation in the amorphous material, the crystallization of the cubic Ge and GST phases before a complete crystallization for higher thermal budget. So far, however, no information is available on the possible changes in density and thickness of such alloys. This paper investigates such variations in density and thickness for a N-doped GGST layer (GGSTN) during isothermal annealing, following the four main stages of its multistep crystallization process. X-ray reflectivity (XRR) and X-ray diffraction were employed for analysis. The study reveals that density and thickness exhibit distinct changes during crystallization, with density increasing by approximately 9% during transition from amorphous to crystalline states. These changes are attributed to alterations in layer morphology, particularly at the Ge crystallization temperature and at the onset of GST crystal formation. Additionally, at high thermal budgets, discrepancies between XRR analysis methods suggest the formation of a thin, lower density layer near the top interface of the GGSTN layer. These results provide insights into the structural evolution of the GGSTN layer, which is crucial for phase change random access memory applications.
Collapse
Affiliation(s)
| | | | | | - Daniel Benoit
- STMicroelectronics, 850 rue Jean Monnet, 38920, Crolles, France
| | - Elisa Petroni
- Smart PowerTechnology R&D, STMicroelectronics, Agrate Brianza, Italy
| | | |
Collapse
|
16
|
Monneron-Gyurits M, Soubrand M, Joussein E, Courtin A, Paineau E, Reguer S, Jubany I, Casas S, Bahí N. Relation between solid phase speciation and oral/lung bioaccessibility of metal(loid)s polluted soils in inhabited area: Contribution of synchrotron-based experiment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172765. [PMID: 38692323 DOI: 10.1016/j.scitotenv.2024.172765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
The presence of contaminated sites/soils in or near cities can pose significant risks to public health. The city of Viviez (France) was taken in reference site bears significant industrial responsibility, particularly in zinc metallurgy, with the presence of a now rehabilitated smelter. This has led to soil contamination by zinc (Zn), lead (Pb), arsenic (As), and cadmium (Cd), with concentrations reaching up to 4856 mg kg-1, 1739 mg kg-1, 195 mg kg-1, and 110 mg kg-1, respectively. The aim of this study is to comprehend the contamination patterns of the site post-rehabilitation, the geochemical behavior of each element, and their speciation (analyzed through BCR, XRD, and XANES) in relation to associated health risks due to metals accessibility for oral ingestion and inhalation by the local population. The findings revealed that elements inducing health risks were not necessarily those with the highest metal contents. All results are discussed in terms of the relationship between element speciation, stability of bearing phases, and their behavior in different media. XANES is an important tool to determine and estimate the Pb-bearing phases in garden soils, as well as the As speciation, which consist of Pb-goethite, anglesite, and Pb-humate, with variations in proportions (the main phases being 66 %, 12 % and 22 % for Pb-goethite, anglesite, and Pb-humate, respectively) whereas As-bearing phase are As(V)-rich ferrihydrite-like. A new aspect lies in the detailed characterization of solid phases before and after bioaccessibility tests, to qualify and quantify the bearing phases involved in the mobility of metallic elements to understand the bioaccessibility behavior. Ultimately, the health risk associated with exposure to inhabitants, in terms of particle ingestion and inhalation, was assessed. Only ingestion-related risk was deemed unacceptable due to the levels of As and Pb.
Collapse
Affiliation(s)
| | - Marilyne Soubrand
- Université de Limoges, E2LIM UR 24133, 123 avenue Albert Thomas, 87060 Limoges cedex, France
| | - Emmanuel Joussein
- Université de Limoges, E2LIM UR 24133, 123 avenue Albert Thomas, 87060 Limoges cedex, France.
| | - Alexandra Courtin
- Université Paris-Saclay, CNRS UMR 8148 GEOPS, 91405 Orsay cedex, France
| | - Erwan Paineau
- Université Paris-Saclay, CNRS UMR 8502 Laboratoire de Physique des Solides, 91405 Orsay cedex, France
| | - Solenn Reguer
- DIFFABS Beamline, Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP 48, 91190 Saint-Aubin, France
| | - Irene Jubany
- Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08242 Manresa, Spain
| | - Sandra Casas
- Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08242 Manresa, Spain
| | - Neus Bahí
- Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08242 Manresa, Spain
| |
Collapse
|
17
|
Kristensen TA, Hulteberg CP, Wallenberg RL, Abdelaziz OY, Blomberg S. Promoting Effect of Ce and La on Ni-Mo/δ-Al 2O 3 Catalysts in the Hydrodeoxygenation of Vanillin. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2024; 38:9827-9835. [PMID: 38863686 PMCID: PMC11165990 DOI: 10.1021/acs.energyfuels.4c00898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/25/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024]
Abstract
A crucial aspect of adding an economical and environmental dimension to the upgrading of bio-oils is to develop catalysts with enhanced and prolonged activity. In the present study, the effect of doping δ-alumina (Al2O3) with oxides of cerium (Ce) and lanthanum (La) before thermal treatment was investigated. The performance of such an Al2O3-supported nickel-molybdenum (Ni-Mo) catalyst was evaluated by studying the selectivity for the direct hydrodeoxygenation (HDO) of vanillin to cresol under continuous-flow conditions. In addition, the effect of adding H2S during catalyst activation and/or performance tests was also evaluated. Overall, enhanced performance of the doped NiMo catalyst in the HDO process has been demonstrated and an increased selectivity for cresol via direct HDO observed. The advantage of adding La and Ce is supported by the characterization results, where less sintering and enhanced pore diameter of the doped Al2O3 were observed after thermally inducing the transformation from the δ to θ phases. The improved characteristics and prolonged activity of the doped Al2O3 were also deduced by the lower acidity of the catalyst, which resulted in reduced coke formation during the HDO process.
Collapse
Affiliation(s)
- Tove A. Kristensen
- Division
of Chemical Engineering, Department of Process and Life Science Engineering, Lund University, Lund SE-221 00, Sweden
- Hulteberg
Chemistry & Engineering AB, Malmö SE-212 25, Sweden
| | - Christian P. Hulteberg
- Division
of Chemical Engineering, Department of Process and Life Science Engineering, Lund University, Lund SE-221 00, Sweden
- Hulteberg
Chemistry & Engineering AB, Malmö SE-212 25, Sweden
| | - Reine L. Wallenberg
- Centre
for Analysis and Synthesis/nCHREM, Lund
University, Lund SE-221 00, Sweden
| | - Omar Y. Abdelaziz
- Department
of Chemical Engineering, King Fahd University
of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Interdisciplinary
Research Center for Refining & Advanced Chemicals, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Sara Blomberg
- Division
of Chemical Engineering, Department of Process and Life Science Engineering, Lund University, Lund SE-221 00, Sweden
| |
Collapse
|
18
|
Artioli G, Fontanari A, Angelini I, Lucarelli C, Etter M, Jeppesen HS, Shilstein S, Shalev S. The tin content of lead inclusions in ancient tin-bronze artifacts: a time-dependent process? J Appl Crystallogr 2024; 57:700-706. [PMID: 38846763 PMCID: PMC11151670 DOI: 10.1107/s1600576724002218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 03/07/2024] [Indexed: 06/09/2024] Open
Abstract
In antiquity, Pb was a common element added in the production of large bronze artifacts, especially large statues, to impart fluidity to the casting process. As Pb does not form a solid solution with pure Cu or with the Sn-Cu alloy phases, it is normally observed in the metal matrix as globular droplets embedded within or in interstitial positions among the crystals of Sn-bronze (normally the α phase) as the last crystallizing phase during the cooling process of the Cu-Sn-Pb ternary melt. The disequilibrium Sn content of the Pb droplets has recently been suggested as a viable parameter to detect modern materials [Shilstein, Berner, Feldman, Shalev & Rosenberg (2019). STAR Sci. Tech. Archaeol. Res. 5, 29-35]. The application assumes a time-dependent process, with a timescale of hundreds of years, estimated on the basis of the diffusion coefficient of Sn in Pb over a length of a few micrometres [Oberschmidt, Kim & Gupta (1982). J. Appl. Phys. 53, 5672-5677]. Therefore, Pb inclusions in recent Sn-bronze artifacts are actually a metastable solid solution of Pb-Sn containing ∼3% atomic Sn. In contrast, in ancient artifacts, unmixing processes and diffusion of Sn from the micro- and nano-inclusions of Pb to the matrix occur, resulting in the Pb inclusions containing a substantially lower or negligible amount of Sn. The Sn content in the Pb inclusions relies on accurate measurement of the lattice parameter of the phase in the Pb-Sn solid solution, since for low Sn values it closely follows Vegard's law. Here, several new measurements on modern and ancient samples are presented and discussed in order to verify the applicability of the method to the detection of modern artwork pretending to be ancient.
Collapse
Affiliation(s)
- Gilberto Artioli
- Department of Geosciences, Università di Padova, Via Gradenigo 6, Padova 35131, Italy
| | - Alessandro Fontanari
- Department of Geosciences, Università di Padova, Via Gradenigo 6, Padova 35131, Italy
| | - Ivana Angelini
- Department of Cultural Heritage, Università di Padova, Piazza Capitaniato 7, Padova 35139, Italy
| | - Chiara Lucarelli
- Department of Geosciences, Università di Padova, Via Gradenigo 6, Padova 35131, Italy
| | - Martin Etter
- FS-PETRA-D, Deutsche Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg 22607, Germany
| | - Henrik S. Jeppesen
- FS-PETRA-D, Deutsche Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg 22607, Germany
| | | | | |
Collapse
|
19
|
Saracanlao RJ, Saelens T, Voegelin A, Smolders E, Everaert M. Recycled Iron Phosphates: A New Phosphorus Fertilizer for Paddy Rice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9250-9260. [PMID: 38741559 DOI: 10.1021/acs.est.4c02111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The potential of recycled iron phosphates (FePs), e.g., vivianites (Fe3(PO4)2·8H2O) and Fe(III)-rich phosphorus (P) adsorbent materials, as phosphorus fertilizer is limited by the strong interaction between Fe and P. In this study, the efficiency of FePs as P fertilizer was explored by applying them as granules or powder in flooded strongly P-fixing soils (acid and calcareous), thereby taking advantage of increased P release induced by reductive dissolution of P-bearing Fe(III) minerals. First, no P diffusion from granular FeP fertilizers into flooded soils was detectable by the diffusive gradient in thin films (DGT) technique and microfocused X-ray fluorescence (μ-XRF) analysis of thin soil sections, in contrast to detectable P diffusion away from granules of soluble triple superphosphate (TSP) fertilizer. On the contrary, powdered FePs demonstrated an excellent increase in extractable P (1 mM CaCl2) in a 120-day incubation experiment in flooded soils. Second, a pot experiment was performed with rice (Oryza sativa) grown in flooded acid and calcareous soils. The fertilizer value of FePs was remarkable when dosed as powder, as it was even up to 3-fold higher than TSP in the acid soil and similar to TSP in the calcareous soil. The beneficial effect of FeP over TSP in the acid soil is attributed to the slow release of P from FePs, which allows to partly overcome P fixation. The promising results of FePs as P fertilizer applied as powders in flooded soils debunk the generally accepted idea that FePs are poor sources of P while demonstrating the importance of the timing of FeP fertilizer application.
Collapse
Affiliation(s)
| | - Toon Saelens
- Division of Soil and Water Management, KU Leuven, Heverlee B-3001, Belgium
| | - Andreas Voegelin
- Eawag Swiss Federal Institute of Aquatic Science and Technology, Duebendorf CH-8600, Switzerland
| | - Erik Smolders
- Division of Soil and Water Management, KU Leuven, Heverlee B-3001, Belgium
| | - Maarten Everaert
- Division of Soil and Water Management, KU Leuven, Heverlee B-3001, Belgium
| |
Collapse
|
20
|
Ionin VA, Malyar YN, Borovkova VS, Zimonin DV, Gulieva RM, Fetisova OY. Inherited Structure Properties of Larch Arabinogalactan Affected via the TEMPO/NaBr/NaOCl Oxidative System. Polymers (Basel) 2024; 16:1458. [PMID: 38891405 PMCID: PMC11175108 DOI: 10.3390/polym16111458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Arabinogalactan (AG), extracted from larch wood, is a β-1,3-galactan backbone and β-1,6-galactan side chains with attached α-1-arabinofuranosyl and β-1-arabinopyranosyl residues. Although the structural characteristics of arabinogalactan II type have already been studied, its functionalization using 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) oxidation remains a promising avenue. In this study, the oxidation of AG, a neutral polysaccharide, was carried out using the TEMPO/NaBr/NaOCl system, resulting in polyuronides with improved functional properties. The oxidation of AG was controlled by analyzing portions of the reaction mixture using spectrophotometric and titration methods. To determine the effect of the TEMPO/NaBr/NaOCl system, air-dried samples of native and oxidized AG were studied by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopy, as well as by gel permeation chromatography. Compounds that model free (1,1-diphenyl-2-picrylhydrazyl (DPPH)) and hydroxyl radicals (iron(II) sulfate, hydrogen peroxide, and salicylic acid) were used to study the antioxidant properties. It was found that, in oxidized forms of AG, the content of carboxyl groups increases by 0.61 mmol compared to native AG. The transformation of oxidized AG into the H+ form using a strong acid cation exchanger leads to an increase in the number of active carboxyl groups to 0.76 mmol. Using FTIR spectroscopy, characteristic absorption bands (1742, 1639, and 1403 cm-1) were established, indicating the occurrence of oxidative processes with a subsequent reduction in the carboxyl group. The functionality of AG was also confirmed by gel permeation chromatography (GPC), which is reflected in an increase in molecular weights (up to 15,700 g/mol). A study of the antioxidant properties of the oxidized and protonated forms of AG show that the obtained antioxidant activity (AOA) values are generally characteristic of polyuronic acids. Therefore, the TEMPO oxidation of AG and other neutral polysaccharides can be considered a promising approach for obtaining compounds with the necessary controlled characteristics.
Collapse
Affiliation(s)
- Vladislav A. Ionin
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
- School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, Krasnoyarsk 660041, Russia
| | - Yuriy N. Malyar
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
- School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, Krasnoyarsk 660041, Russia
| | - Valentina S. Borovkova
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
- School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, Krasnoyarsk 660041, Russia
| | - Dmitriy V. Zimonin
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
- School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, Krasnoyarsk 660041, Russia
| | - Roksana M. Gulieva
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
- School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, Krasnoyarsk 660041, Russia
| | - Olga Yu. Fetisova
- Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk 660036, Russia; (V.A.I.); (V.S.B.); (D.V.Z.); (R.M.G.); (O.Y.F.)
| |
Collapse
|
21
|
Gallo Stampino P, Ceccarelli L, Caruso M, Mascheretti L, Dotelli G, Sabbadini S. Performance of Earth Plasters with Graphene-Based Additive. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2356. [PMID: 38793421 PMCID: PMC11123424 DOI: 10.3390/ma17102356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/08/2024] [Accepted: 05/12/2024] [Indexed: 05/26/2024]
Abstract
A central debate is the improvement in the mechanical and water resistance of sustainable earthen architecture without additives or stabilizers. This innovative work aims to test the effects of a graphene-based additive, optimized for the improvement in concrete properties, on the strength and water resistance of raw-earth plasters without any stabilizer other than sand. Given the heterogeneous nature of raw earth, three different soils were tested by adding three increasing graphene-based additive contents (0.01, 0.05 and 0.1 wt% of the earth-sand proportion). The link between soil intrinsic properties, i.e., geotechnical and mineralogical properties, and their interaction with the additive were investigated through geotechnical characterization, as well as mineralogical characterization, by XRD and ATR-FTIR analyses. The experimental tests carried out focused on the adhesion properties of the twelve different plasters on standard hollow bricks and on their interaction with water through capillary rise tests and erosion resistance tests. Conclusion from the experimental tests suggests that the graphene-based additive in earth plasters, by increasing the cohesion of the mixture, improves their adhesion performance.
Collapse
Affiliation(s)
- Paola Gallo Stampino
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy; (L.C.); (L.M.); (G.D.)
| | - Letizia Ceccarelli
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy; (L.C.); (L.M.); (G.D.)
| | - Marco Caruso
- Materials Testing Laboratory, Politecnico di Milano, Via Celoria 3, 20133 Milan, Italy;
| | - Laura Mascheretti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy; (L.C.); (L.M.); (G.D.)
| | - Giovanni Dotelli
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy; (L.C.); (L.M.); (G.D.)
| | | |
Collapse
|
22
|
Ramírez E, Carmona-Pérez D, Marco JF, Sanchez-Lievanos KR, Sabinas-Hernández SA, Knowles KE, Elizalde-González MP. Comparison of MAF-32 and a One-Pot Synthesized Superparamagnetic Iron Oxide/MAF-32 Composite for the Adsorption of Diclofenac. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2269. [PMID: 38793334 PMCID: PMC11123495 DOI: 10.3390/ma17102269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/20/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024]
Abstract
The global presence of pharmaceutical pollutants in water sources represents a burgeoning public health concern. Recent studies underscore the urgency of addressing this class of emerging contaminants. In this context, our work focuses on synthesizing a composite material, FexOy/MAF-32, through a streamlined one-pot reaction process, as an adsorbent for diclofenac, an emerging environmental contaminant frequently found in freshwater environments and linked to potential toxicity towards several organisms such as fish and mussels. A thorough characterization was performed to elucidate the structural composition of the composite. The material presents magnetic properties attributed to its superparamagnetic behavior, which facilitates the recovery efficiency of the composite post-diclofenac adsorption. Our study further involves a comparative analysis between the FexOy/MAF-32 and a non-magnetic counterpart, comprised solely of 2-ethylimidazolate zinc polymer. This comparison aims to discern the relative advantages and disadvantages of incorporating magnetic iron oxide nanoparticles in the contaminant removal process facilitated by a coordination polymer. Our findings reveal that even a minimal incorporation of iron oxide nanoparticles substantially enhanced the composite's overall performance in pollutant adsorption.
Collapse
Affiliation(s)
- Erick Ramírez
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Edif. IC7, Puebla Pue 72570, Mexico; (D.C.-P.); (M.P.E.-G.)
| | - Daniela Carmona-Pérez
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Edif. IC7, Puebla Pue 72570, Mexico; (D.C.-P.); (M.P.E.-G.)
| | - J. F. Marco
- Instituto de Química-Física Blas Cabrera, CSIC, c/Serrano, 119, 28006 Madrid, Spain;
| | | | - Sergio A. Sabinas-Hernández
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Apartado Postal J-48, Puebla Pue 72570, Mexico;
| | - Kathryn E. Knowles
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA; (K.R.S.-L.); (K.E.K.)
| | - María P. Elizalde-González
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Edif. IC7, Puebla Pue 72570, Mexico; (D.C.-P.); (M.P.E.-G.)
| |
Collapse
|
23
|
Ramirez-Gutierrez CF, Contreras-Jiménez BL, Londoño-Restrepo SM. Characterization of starches isolated from Mexican pulse crops: Structural, physicochemical, and rheological properties. Int J Biol Macromol 2024; 268:131576. [PMID: 38636764 DOI: 10.1016/j.ijbiomac.2024.131576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/08/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
This work aimed to characterize and compare the physicochemical properties of four pulse starches: bean, chickpea, lentil, and pea. Chemical proximate analysis, elemental composition, morphological grain characterization, crystalline structure, thermal analysis, FTIR analysis, and pasting properties were conducted. The proximate analysis shows that these starches have low fat, mineral, and protein content but high amylose values ranging from 29 to 36 % determined by colorimetry. Despite the high amylose content, the starches did not exhibit the typical behavior of an amylose-rich starch, with high peak viscosity and low breakdown and setback. It was found that this behavior was likely due to the large granule size of the ellipsoidal, spherical, and kidney-shaped granules and the high content of some minerals such as Na, Mg, K, Fe, Mn, P, and Si. The study also found that all pulse starches simultaneously contain monoclinic and hexagonal crystals, making them C-type starches. The findings were verified through the Rietveld analyses of X-ray diffraction patterns and differential scanning calorimetry, in which bimodal endothermic peaks evidenced both types of crystals being gelatinized.
Collapse
Affiliation(s)
- Cristian Felipe Ramirez-Gutierrez
- Cuerpo Académico de Tecnologías de la Información y Comunicación Aplicada (TICA), Universidad Politécnica de Querétaro, El Marqués, Querétaro 76240, Mexico.
| | - Brenda Lidia Contreras-Jiménez
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco 141 col. Colinas del Cimatario, C.P. 76090 Querétaro, Qro, Mexico; Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.P. 76010 Querétaro, Qro, Mexico.
| | - Sandra Milena Londoño-Restrepo
- Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México Campus Juriquilla, Querétaro 76230, Mexico.
| |
Collapse
|
24
|
Bogusz A, Tomczyk B, Trzcińska M, Mirosław B, Gworek B. Effect of zeolites on the reduction of the ecotoxicity of carbamazepine in the environment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116320. [PMID: 38653020 DOI: 10.1016/j.ecoenv.2024.116320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 02/08/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
In this study, the impact of calcination of zeolites on the ecotoxicity of carbamazepine solutions in two matrices, water and synthetic sewage, was assessed. Two types of zeolites were tested: natural zeolite, in the form of a zeolite rock consisting mainly of clinoptilolite, and a synthetic zeolite type 5 A. Additionally, zeolites were calcined at a temperature of 200 °C. The kinetics of carbamazepine adsorption in aqueous solutions and in synthetic sewage matrix was determined. Higher adsorption capacity was obtained for carbamazepine aqueous solutions as well as zeolites after the calcination process. Considering type of zeolite, the highest and fastest uptake of carbamazepine was observed for natural zeolite after calcination. In the case of ecotoxicity, carbamazepine solutions before adsorption was the most toxic towards Raphidocelis subcapitata, next Aliivibrio fischeri and Daphnia magna, regardless to the matrix type. The differentiation in toxicity regarding the type of matrix was observed, in the case of algae and bacteria, higher toxicity was demonstrated by carbamazepine solutions in the water matrix, while in the case of crustaceans-the sewage matrix. After the adsorption process, the toxicity of carbamazepine solutions on zeolites decreased by 34.5-60.9 % for R. subcapitata, 33-39 % for A. fischeri and 55-60 % for D. magna, thus confirming the effectiveness of the proposed method of carbamazepine immobilization.
Collapse
Affiliation(s)
- Aleksandra Bogusz
- Department of Ecotoxicology, Institute of Environmental Protection - National Research Institute, Ks. Troszynskiego St. 9, Warsaw 01-693, Poland.
| | - Beata Tomczyk
- Department of Ecotoxicology, Institute of Environmental Protection - National Research Institute, Ks. Troszynskiego St. 9, Warsaw 01-693, Poland
| | - Magdalena Trzcińska
- Department of Ecotoxicology, Institute of Environmental Protection - National Research Institute, Ks. Troszynskiego St. 9, Warsaw 01-693, Poland
| | - Barbara Mirosław
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University in Lublin, Lublin 20-031, Poland
| | - Barbara Gworek
- Department of Environmental Chemistry and Risk Assessment, Institute of Environmental Protection - National Research Institute, Slowicza St. 32, Warsaw 02-170, Poland
| |
Collapse
|
25
|
Pacheco ARF, Barros AM, Amorim CO, Amaral VS, Coutinho PJG, Rodrigues ARO, Castanheira EMS. Elastic Liposomes Containing Calcium/Magnesium Ferrite Nanoparticles Coupled with Gold Nanorods for Application in Photothermal Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:679. [PMID: 38668173 PMCID: PMC11055082 DOI: 10.3390/nano14080679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024]
Abstract
This work reports on the design, development, and characterization of novel magneto-plasmonic elastic liposomes (MPELs) of DPPC:SP80 (85:15) containing Mg0.75Ca0.25Fe2O4 nanoparticles coupled with gold nanorods, for topical application of photothermal therapy (PTT). Both magnetic and plasmonic components were characterized regarding their structural, morphological, magnetic and photothermal properties. The magnetic nanoparticles display a cubic shape and a size (major axis) of 37 ± 3 nm, while the longitudinal and transverse sizes of the nanorods are 46 ± 7 nm and 12 ± 1.6 nm, respectively. A new methodology was employed to couple the magnetic and plasmonic nanostructures, using cysteine as bridge. The potential for photothermia was evaluated for the magnetic nanoparticles, gold nanorods and the coupled magnetic/plasmonic nanoparticles, which demonstrated a maximum temperature variation of 28.9 °C, 33.6 °C and 37.2 °C, respectively, during a 30 min NIR-laser irradiation of 1 mg/mL dispersions. Using fluorescence anisotropy studies, a phase transition temperature (Tm) of 35 °C was estimated for MPELs, which ensures an enhanced fluidity crucial for effective crossing of the skin layers. The photothermal potential of this novel nanostructure corresponds to a specific absorption rate (SAR) of 616.9 W/g and a maximum temperature increase of 33.5 °C. These findings point to the development of thermoelastic nanocarriers with suitable features to act as photothermal hyperthermia agents.
Collapse
Affiliation(s)
- Ana Rita F. Pacheco
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.R.F.P.); (A.M.B.)
- Associate Laboratory LaPMET, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Margarida Barros
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.R.F.P.); (A.M.B.)
- Associate Laboratory LaPMET, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Carlos O. Amorim
- Physics Department and i3N, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Vítor S. Amaral
- Physics Department and CICECO, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Paulo J. G. Coutinho
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.R.F.P.); (A.M.B.)
- Associate Laboratory LaPMET, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Rita O. Rodrigues
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.R.F.P.); (A.M.B.)
- Associate Laboratory LaPMET, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Elisabete M. S. Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.R.F.P.); (A.M.B.)
- Associate Laboratory LaPMET, Campus de Gualtar, 4710-057 Braga, Portugal
| |
Collapse
|
26
|
Eckel F, Sinzinger K, Van Opdenbosch D, Schieder D, Sieber V, Zollfrank C. Influence of microbial biomass content on biodegradation and mechanical properties of poly(3-hydroxybutyrate) composites. Biodegradation 2024; 35:209-224. [PMID: 37402058 PMCID: PMC10881657 DOI: 10.1007/s10532-023-10038-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/30/2023] [Indexed: 07/05/2023]
Abstract
Biodegradation rates and mechanical properties of poly(3-hydroxybutyrate) (PHB) composites with green algae and cyanobacteria were investigated for the first time. To the authors knowledge, the addition of microbial biomass led to the biggest observed effect on biodegradation so far. The composites with microbial biomass showed an acceleration of the biodegradation rate and a higher cumulative biodegradation within 132 days compared to PHB or the biomass alone. In order to determine the causes for the faster biodegradation, the molecular weight, the crystallinity, the water uptake, the microbial biomass composition and scanning electron microscope images were assessed. The molecular weight of the PHB in the composites was lower than that of pure PHB while the crystallinity and microbial biomass composition were the same for all samples. A direct correlation of water uptake and crystallinity with biodegradation rate could not be observed. While the degradation of molecular weight of PHB during sample preparation contributed to the improvement of biodegradation, the main reason was attributed to biostimulation by the added biomass. The resulting enhancement of the biodegradation rate appears to be unique in the field of polymer biodegradation. The tensile strength was lowered, elongation at break remained constant and Young's modulus was increased compared to pure PHB.
Collapse
Affiliation(s)
- Felix Eckel
- Chair for Biogenic Polymers, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany
| | - Korbinian Sinzinger
- Chair for Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany
| | - Daniel Van Opdenbosch
- Chair for Biogenic Polymers, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany
| | - Doris Schieder
- Chair for Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany
| | - Volker Sieber
- Chair for Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany
| | - Cordt Zollfrank
- Chair for Biogenic Polymers, TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, Straubing, 94315, Germany.
| |
Collapse
|
27
|
Alaoui Selsouli Y, Rho HS, Eischen-Loges M, Galván-Chacón VP, Stähli C, Viecelli Y, Döbelin N, Bohner M, Tahmasebi Birgani Z, Habibović P. Optimization of a tunable process for rapid production of calcium phosphate microparticles using a droplet-based microfluidic platform. Front Bioeng Biotechnol 2024; 12:1352184. [PMID: 38600949 PMCID: PMC11004461 DOI: 10.3389/fbioe.2024.1352184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/08/2024] [Indexed: 04/12/2024] Open
Abstract
Calcium phosphate (CaP) biomaterials are amongst the most widely used synthetic bone graft substitutes, owing to their chemical similarities to the mineral part of bone matrix and off-the-shelf availability. However, their ability to regenerate bone in critical-sized bone defects has remained inferior to the gold standard autologous bone. Hence, there is a need for methods that can be employed to efficiently produce CaPs with different properties, enabling the screening and consequent fine-tuning of the properties of CaPs towards effective bone regeneration. To this end, we propose the use of droplet microfluidics for rapid production of a variety of CaP microparticles. Particularly, this study aims to optimize the steps of a droplet microfluidic-based production process, including droplet generation, in-droplet CaP synthesis, purification and sintering, in order to obtain a library of CaP microparticles with fine-tuned properties. The results showed that size-controlled, monodisperse water-in-oil microdroplets containing calcium- and phosphate-rich solutions can be produced using a flow-focusing droplet-generator microfluidic chip. We optimized synthesis protocols based on in-droplet mineralization to obtain a range of CaP microparticles without and with inorganic additives. This was achieved by adjusting synthesis parameters, such as precursor concentration, pH value, and aging time, and applying heat treatment. In addition, our results indicated that the synthesis and fabrication parameters of CaPs in this method can alter the microstructure and the degradation behavior of CaPs. Overall, the results highlight the potential of the droplet microfluidic platform for engineering CaP microparticle biomaterials with fine-tuned properties.
Collapse
Affiliation(s)
- Y. Alaoui Selsouli
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - H. S. Rho
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - M. Eischen-Loges
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - V. P. Galván-Chacón
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - C. Stähli
- RMS Foundation, Bettlach, Switzerland
| | | | | | - M. Bohner
- RMS Foundation, Bettlach, Switzerland
| | - Z. Tahmasebi Birgani
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - P. Habibović
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| |
Collapse
|
28
|
Basile M, Triunfo C, Gärtner S, Fermani S, Laurenzi D, Maoloni G, Mazzon M, Marzadori C, Adamiano A, Iafisco M, Montroni D, Gómez Morales J, Cölfen H, Falini G. Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells: A Sustainable Plastic Filler. ACS OMEGA 2024; 9:11232-11242. [PMID: 38496946 PMCID: PMC10938433 DOI: 10.1021/acsomega.3c06186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 03/19/2024]
Abstract
Waste seashells from aquaculture are a massive source of biogenic calcium carbonate (bCC) that can be a potential substitute for ground calcium carbonate and precipitated calcium carbonate. These last materials find several applications in industry after a surface coating with hydrophobic molecules, with stearate as the most used. Here, we investigate for the first time the capability of aqueous stearate dispersions to coat bCC powders from seashells of market-relevant mollusc aquaculture species, namely the oyster Crassostrea gigas, the scallop Pecten jacobaeus, and the clam Chamelea gallina. The chemical-physical features of bCC were extensively characterized by different analytical techniques. The results of stearate adsorption experiments showed that the oyster shell powder, which is the bCC with a higher content of the organic matrix, showed the highest adsorption capability (about 23 wt % compared to 10 wt % of geogenic calcite). These results agree with the mechanism proposed in the literature in which stearate adsorption mainly involves the formation of calcium stearate micelles in the dispersion before the physical adsorption. The coated bCC from oyster shells was also tested as fillers in an ethylene vinyl acetate compound used for the preparation of shoe soles. The obtained compound showed better mechanical performance than the one prepared using ground calcium. In conclusion, we can state that bCC can replace ground and precipitated calcium carbonate and has a higher stearate adsorbing capability. Moreover, they represent an environmentally friendly and sustainable source of calcium carbonate that organisms produce by high biological control over composition, polymorphism, and crystal texture. These features can be exploited for applications in fields where calcium carbonate with selected features is required.
Collapse
Affiliation(s)
- Maria
Luisa Basile
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy
| | - Carla Triunfo
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy
- Fano
Marine Center, viale
Adriatico 1/N, 61032 Fano, Italy
| | - Stefanie Gärtner
- Department
of Chemistry, Physical Chemistry, University
of Konstanz, Universitätsstrasse 10, Box 714, D-78457 Konstanz, Germany
| | - Simona Fermani
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy
- Interdepartmental
Centre for Industrial Research Health Sciences & Technologies, University of Bologna, 40064 Bologna, Italy
| | - Davide Laurenzi
- Plant
Ascoli Piceno, Finproject S.p.A., Via Enrico Mattei, 1—Zona
Ind.le Campolungo, 3100 Ascoli Piceno, Italy
| | - Gabriele Maoloni
- Plant
Ascoli Piceno, Finproject S.p.A., Via Enrico Mattei, 1—Zona
Ind.le Campolungo, 3100 Ascoli Piceno, Italy
| | - Martina Mazzon
- DiSTA,
Department
of Science and Technology of Agriculture and Environment, University of Bologna, via Fanin 40, 40127 Bologna, Italy
| | - Claudio Marzadori
- DiSTA,
Department
of Science and Technology of Agriculture and Environment, University of Bologna, via Fanin 40, 40127 Bologna, Italy
| | - Alessio Adamiano
- Institute
of Science, Technology and Sustainability for Ceramics, Consiglio Nazionale delle Ricerche, Via Granarolo 64, 48018 Faenza, Italy
| | - Michele Iafisco
- Institute
of Science, Technology and Sustainability for Ceramics, Consiglio Nazionale delle Ricerche, Via Granarolo 64, 48018 Faenza, Italy
| | - Devis Montroni
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy
| | - Jaime Gómez Morales
- Laboratorio
de Estudios Cristalográficos, Instituto
Andaluz de Ciencias de la Tierra (CSIC-UGR), Avda Las Palmeras 4, 18100 Armilla, Granada, Spain
| | - Helmut Cölfen
- Department
of Chemistry, Physical Chemistry, University
of Konstanz, Universitätsstrasse 10, Box 714, D-78457 Konstanz, Germany
| | - Giuseppe Falini
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy
| |
Collapse
|
29
|
Baba F, Utsuno F, Ohkubo T. Synthesis and Comprehensive Analytical Study of β-Li 3PS 4 Stabilization by Ca- and Ba-Codoped Li 3PS 4. ACS OMEGA 2024; 9:12242-12253. [PMID: 38497009 PMCID: PMC10938318 DOI: 10.1021/acsomega.3c09952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/14/2024] [Accepted: 02/21/2024] [Indexed: 03/19/2024]
Abstract
Sulfide-based solid electrolytes with high Li+ conductivity, such as Li3PS4, are key materials for the realization of all-solid-state Li+ batteries. One approach to achieving high Li+ conductivity is to combine crystalline-phase stabilization at high temperatures with the introduction of defects at room temperature. In this work, this approach was verified by codoping Li3PS4 with two kinds of divalent cations. The resulting structural changes were comprehensively investigated both experimentally and computationally. The high-temperature β-Li3PS4 phase of Li3PS4 could be stabilized at room temperature by adjusting the amount of Ca or Ba doping. The synthesized samples doped with divalent cations were found to have conductivities about 2 orders of magnitude higher than that of the γ-Li3PS4 phase at room temperature. The resultant Li+ conductivity at room temperature was also higher than that expected from interpolation of results for nondoped β-Li3PS4. It is believed that the structural changes produced by the divalent cation doping contribute to this increase in conductivity. The stability of the β-Li3PS4 phase with divalent cation doping was also demonstrated using density-functional-theory calculations for models with equivalent compositions to the synthesized samples. The Li+ positions obtained by structural optimization calculations showed the presence of diverse and disordered Li sites in the Ca-doped lattice. Such structural changes can contribute to cascade processes involving Li+ collisions, referred to as the "billiard-ball" mechanism, which cannot occur in nondoped β-Li3PS4. This series of experiments involving the synthesis and analyses of β-Li3PS4 with divalent cation doping provides a way to enhance Li+ conductivity through structural modification and optimization.
Collapse
Affiliation(s)
- Fuki Baba
- Graduate
School of Engineering, Chiba University, 1-33 Yayoi-cho,
Inage-ku, Chiba 263-8522, Japan
| | - Futoshi Utsuno
- Lithium
Battery Material Department, Idemitsu Kosan
Co., Ltd., 1280 Kami-izumi, Sodegaura, Chiba 299-0293, Japan
| | - Takahiro Ohkubo
- Graduate
School of Engineering, Chiba University, 1-33 Yayoi-cho,
Inage-ku, Chiba 263-8522, Japan
| |
Collapse
|
30
|
Parrotin F, Dazas B, Billon S, Chedozeau R, Savoye S, Descostes M, Tertre E. Role of zeolite content on the sorption properties of analcime-rich rocks from the Abinky Formation (Niger). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171615. [PMID: 38462009 DOI: 10.1016/j.scitotenv.2024.171615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/12/2024]
Abstract
The Abinky formation, composed of analcimolites (i.e., rocks with <70 wt% analcime), underlies Tchirezrine II, which hosts the Imouraren (Niger) uranium deposit. A potential mining project is under consideration to recover U by in situ acid leaching. Analcimolites are uncommon rocks, and assessing their ion-exchange properties is the first step to understand and predict the mobility of aqueous species in these formations. The objective of this study is then to understand the link between the Cation Exchange Capacities (CEC) of analcimolites as a function of their analcime content and associated crystal chemistry. Mineral quantification was performed by Rietveld refinement constrained by local chemical analysis with scanning electron microscopy coupled with Energy Dispersive Spectrometry. CEC were obtained at neutral pH by performing NH4+-for-Na+ exchange (CECNa/NH4), and Na+/H+ ion exchange experiments were performed with 4 analcimolites. Results showed that the analcime crystal chemistry deduced from Rietveld refinement was in good agreement with that obtained from SEM analysis (1.99 < Si/Al < 2.53). The results showed that all samples had a positive correlation between CECNa/NH4 and analcime content until ~30 meq/100 g for a sample containing ~85wt%Riet. of analcime, and that ~6 % of the total amounts of Na+ present in the analcime could be exchanged by NH4+ and H+. Based on Si and Al aqueous measurements, results showed that exchange with Na+ is the main process consuming H+ during Na+/H+ exchange when pH > 3.5. These experimental data were then interpreted by considering a single site equal to the CECNa/NH4 value, specific for each analcimolite, and a selectivity coefficient equal to log KNa/H = 1.3 (Gaines Thomas convention) being equal for all samples investigated. Finally, these data were used to assess the role played by Na+/H+ exchange in the pH evolution of the pore water of an analcime-rich rock subjected to dynamic acidification.
Collapse
Affiliation(s)
- Flora Parrotin
- IC2MP, Equipe HydrASA, UMR 7285/Université de Poitiers, 86073 Poitiers, France; ORANO Mining, Environmental R&D Dpt., 92320 Chatillon, France.
| | - Baptiste Dazas
- IC2MP, Equipe HydrASA, UMR 7285/Université de Poitiers, 86073 Poitiers, France
| | - Sophie Billon
- IC2MP, Equipe HydrASA, UMR 7285/Université de Poitiers, 86073 Poitiers, France
| | - Raphaël Chedozeau
- IC2MP, Equipe HydrASA, UMR 7285/Université de Poitiers, 86073 Poitiers, France
| | - Sébastien Savoye
- Université Paris-Saclay, CEA, Service de Physico-Chimie, 91191 Gif-sur-Yvette, France
| | - Michaël Descostes
- ORANO Mining, Environmental R&D Dpt., 92320 Chatillon, France; Centre de Géosciences, MINES Paris, PSL University, 35 rue St Honoré, 77300 Fontainebleau, France
| | - Emmanuel Tertre
- IC2MP, Equipe HydrASA, UMR 7285/Université de Poitiers, 86073 Poitiers, France
| |
Collapse
|
31
|
Warmuth L, Steurer M, Schild D, Zimina A, Grunwaldt JD, Pitter S. Reversible and Irreversible Structural Changes in Cu/ZnO/ZrO 2 Catalysts during Methanol Synthesis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8813-8821. [PMID: 38335022 DOI: 10.1021/acsami.3c17383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The structure and chemical state of heterogeneous catalysts are closely related to their operational stability. Knowing these relationships as precisely as possible is thus essential for further catalyst development. This work focuses on the deactivation of a Cu/ZnO/ZrO2-type catalyst for methanol synthesis. Experiments were performed in a parallel setup, with which time-dependent changes in the catalyst material can be observed. Elucidation of potential deactivation pathways is described for catalyst aging at different times on stream (0, 50, 935 h). Data from X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, N2 physisorption, and transmission electron microscopy measurements reveal that sintering of Cu0 domains and restructuring within ZnO domains mainly contribute to deactivation. Subsequent reactivation by reduction (in H2/N2) reverts the observed structural changes only to a limited extent. Moreover, this work highlights the participation of ZrO2 as a promoter and reveals redispersion of zirconia after initial reduction.
Collapse
Affiliation(s)
- Lucas Warmuth
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Matthias Steurer
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Dieter Schild
- Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Anna Zimina
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Stephan Pitter
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| |
Collapse
|
32
|
Beltrán Pineda ME, Lizarazo Forero LM, Sierra CA. Antibacterial fibers impregnated with mycosynthetized AgNPs for control of Pectobacterium carotovorum. Heliyon 2024; 10:e23108. [PMID: 38169729 PMCID: PMC10758722 DOI: 10.1016/j.heliyon.2023.e23108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
Using biopolymers functionalized with antibacterial agents to manufacture active packaging is a clean alternative to mitigate food losses due to postharvest plant diseases. In this study, two mycosynthetized AgNPs impregnation methodologies on cotton (cationization and in situ biochemical reduction) were used to obtain the antibacterial fibers (A-AgNPs-C and A-AgNPs-IBR), which, in addition to being characterized by SEM-EDX, XRD, were evaluated as antibacterial materials. The cotton fibers showed growth inhibition of Pectobacterium carotovorum at 48 h. The reuse tests of these cotton fibers showed that the two types of fibers could have up to three successive uses without losing their effectiveness, regardless of the impregnation method used. Is important to highlight that the retention tests indicated that the AgNPs remain attached to the A-AgNPs-C and A-AgNPs-IBR fibers after several successive washes. Finally, the mycosynthesized AgNPs were also impregnated on fique fibers (Fique-AgNPs) by cationization to obtain little antibacterial sacks. Nanostructured materials that in in vivo tests on potatoes showed only 7.8 % of affectation, while the tubers stored in the traditional sacks had an affectation of 25 %. This immobilization of AgNPs in natural fibers will allow the development of a nanobiotechnological application in the storage and transport of potatoes, after performing some additional cytotoxicity tests to guarantee its safety.
Collapse
Affiliation(s)
- Mayra Eleonora Beltrán Pineda
- Grupo de investigación en Macromoléculas UN- Grupo de investigación Biología ambiental UPTC- Grupo de investigación Gestión ambiental Universidad de Boyacá - Tunja, Colombia
| | - Luz Marina Lizarazo Forero
- Universidad Pedagógica y Tecnológica de Colombia- Grupo de investigación Biología ambiental, Tunja, Colombia
| | - Cesar A. Sierra
- Universidad Nacional de Colombia, Grupo de investigación en Macromoléculas, Bogotá, Colombia
| |
Collapse
|
33
|
Araújo MHP, Ardisson JD, Krohling AC, Lago RM, Guimarães Júnior W, Tristão JC. Calcium ferrites for phosphate adsorption and recovery from wastewater. RSC Adv 2024; 14:1612-1624. [PMID: 38179099 PMCID: PMC10766074 DOI: 10.1039/d3ra05871a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/19/2023] [Indexed: 01/06/2024] Open
Abstract
In this study, calcium ferrites with different Ca : Fe atomic ratios (1 : 1, 1 : 2, 1 : 3 and 2 : 1) were prepared from Ca and Fe nitrates treated at 300, 700 and 900 °C and evaluated for phosphate adsorption and recovery from wastewater. TG, XRD, Mössbauer spectroscopy, SEM, VSM magnetic measurements, and BET analyses showed the formation of two different calcium ferrite phases, i.e., CaFe2O4 and Ca2Fe2O5 at 700 and 900 °C. The adsorption results indicated that the formation of calcium ferrite structure is critical for phosphate adsorption/recovery. Evaluation of the pH, initial phosphate concentration, contact time, coexisting ions and desorption conditions showed remarkable adsorption capacities of 62-75 mg g-1 for CaFe1:2-700 and 28-43 mg g-1 for CaFe1:2-900. The phosphate adsorption on the Ca ferrite surfaces is so strong that the recovery/desorption showed limited efficiencies, e.g., 15-39%.
Collapse
Affiliation(s)
- Matheus Henrique Pimentel Araújo
- Universidade Federal de Viçosa - Campus Florestal - UFV Rodovia LMG 818, km 06, s/n, Campus Universitário Florestal MG 35690-000 Brazil
| | - José Domingos Ardisson
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, campus da Universidade Federal de Minas Gerais Avenida Presidente Antônio Carlos, No 6627, Rua Mário Werneck, S/N - Pampulha Belo Horizonte MG Brazil
| | - Alisson Carlos Krohling
- Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, campus da Universidade Federal de Minas Gerais Avenida Presidente Antônio Carlos, No 6627, Rua Mário Werneck, S/N - Pampulha Belo Horizonte MG Brazil
| | - Rochel Montero Lago
- Universidade Federal de Minas Gerais - UFMG Avenida Presidente Antônio Carlos, No 6627, Rua Mário Werneck, 2 - Pampulha Belo Horizonte MG 31270-901 Brazil
| | - Walber Guimarães Júnior
- Universidade Federal de São Carlos - UFSCar Rodovia Washington Luís, s/n - Monjolinho São Carlos - SP 13565-905 Brazil
| | - Juliana Cristina Tristão
- Universidade Federal de Viçosa - Campus Florestal - UFV Rodovia LMG 818, km 06, s/n, Campus Universitário Florestal MG 35690-000 Brazil
| |
Collapse
|
34
|
Sánchez-Loredo MG, Chekhonin P, Ebert D, Fischer U, Liu X, Möckel R, Labrada-Delgado GJ, Passerini S, Kelly N. Precipitation Stripping of V(V) as a Novel Approach for the Preparation of Two-Dimensional Transition Metal Vanadates. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:38. [PMID: 38202493 PMCID: PMC10780767 DOI: 10.3390/nano14010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Cobalt, nickel, manganese and zinc vanadates were synthesized by a hydrometallurgical two-phase method. The extraction of vanadium (V) ions from alkaline solution using Aliquat® 336 was followed by the production of metal vanadates through precipitation stripping. Precipitation stripping was carried out using solutions of the corresponding metal ions (Ni (II), Co (II), Mn (II) and Zn (II), 0.05 mol/L in 4 mol/L NaCl), and the addition time of the strip solution was varied (0, 1 and 2 h). The time-dependent experiments showed a notable influence on the composition, structure, morphology and crystallinity of the two-dimensional vanadate products. Inspired by these findings, we selected two metallic vanadate products and studied their properties as alternative cathode materials for nonaqueous sodium and lithium metal batteries.
Collapse
Affiliation(s)
- María Guadalupe Sánchez-Loredo
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Chemnitzer Str. 40, 09599 Freiberg, Germany; (D.E.); (U.F.); (R.M.); (N.K.)
- Instituto de Metalurgia, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, Sierra Leona 550, San Luis Potosí 78210, Mexico
| | - Paul Chekhonin
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institut für Ressourcenökologie, Bautzner Landstraße 400, 01328 Dresden, Germany;
| | - Doreen Ebert
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Chemnitzer Str. 40, 09599 Freiberg, Germany; (D.E.); (U.F.); (R.M.); (N.K.)
| | - Ulrike Fischer
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Chemnitzer Str. 40, 09599 Freiberg, Germany; (D.E.); (U.F.); (R.M.); (N.K.)
| | - Xu Liu
- Helmholtz Institute Ulm (HIU), Helmholtzstraße 11, 89081 Ulm, Germany; (X.L.); (S.P.)
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
| | - Robert Möckel
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Chemnitzer Str. 40, 09599 Freiberg, Germany; (D.E.); (U.F.); (R.M.); (N.K.)
| | - Gladis Judith Labrada-Delgado
- Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, San Luis Potosí 78216, Mexico;
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU), Helmholtzstraße 11, 89081 Ulm, Germany; (X.L.); (S.P.)
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
- Chemistry Department, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Norman Kelly
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Helmholtz-Institut Freiberg für Ressourcentechnologie (HIF), Chemnitzer Str. 40, 09599 Freiberg, Germany; (D.E.); (U.F.); (R.M.); (N.K.)
| |
Collapse
|
35
|
De Windt S, Auvergniot J, Cabelguen PE, Gschwind F, Dubois M, Guerin K. Strategies to Achieve Stable Manganese Oxyfluorides by Tuning the Reactivity of Pure Molecular Fluorine. Inorg Chem 2023; 62:19612-19621. [PMID: 38044826 DOI: 10.1021/acs.inorgchem.3c02982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Thanks to their high initial electrochemical properties and broad compositional flexibility, lithium-rich disordered rocksalt cathode-active materials including high-performance manganese-only materials appear as a potential replacement to the cobalt-based current market leader "NMC" material. The main issue with these materials is their lack of stability. However, recent works have identified bulk fluorination as a potential solution to stabilize these compounds. There is, however, a clear lack of diversity in fluorination agents used to synthesize these disordered rocksalts, as most publications used LiF, a very stable compound. To achieve manganese-only materials, manganese oxyfluorides represent promising precursors, but the literature reports only MnO3F and Mn2O2F9, which are both unstable and hazardous. The present study develops several strategies for synthesis and a tailored characterization methodology to explore the chemical space of direct fluorination of manganese oxide MnO with molecular fluorine and shows how to tune its reactivity to achieve a range of novel, safe, and finely tunable manganese oxyfluorides of general formula MnOFx, with x going from 0 to 1 synthesized via a fluorine insertion mechanism.
Collapse
Affiliation(s)
- Sebastien De Windt
- Université Clermont-Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont Ferrand, France
| | | | | | | | - Marc Dubois
- Université Clermont-Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont Ferrand, France
| | - Katia Guerin
- Université Clermont-Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont Ferrand, France
| |
Collapse
|
36
|
Sutliff BP, Farrell C, Martin SM, Bortner MJ. Flow induced attrition of cellulose nanocrystals. Carbohydr Polym 2023; 321:121252. [PMID: 37739516 DOI: 10.1016/j.carbpol.2023.121252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 09/24/2023]
Abstract
To study the potential impacts of shear stress on cellulose nanocrystals (CNCs), a microcapillary rheometer was employed to repeatedly shear approximately 10 mL of 6 wt% aqueous CNC suspension at 25 °C and rates ranging from 1,000 s-1 to 501,000 s-1. A 9 wt% CNC suspension was also tested at 316,000 s-1 for comparison of concentration effects on the behavior of the suspensions. After monitoring viscosity for 25 steady shear measurements, the suspensions processed at 1,000 s-1 decreased in viscosity by approximately 20 %. Higher shear rates produced smaller changes in viscosity, while increasing the concentration produced higher general viscosities. Atomic force microscopy (AFM) and X-ray diffraction (XRD) probed physical changes between the neat and sheared CNC samples. AFM images showed up to a 24 % reduction in length after shearing, but an insignificant reduction in cross-section. XRD showed a slight increase in the ratio of amorphous to crystalline fractions of the CNCs. Additionally, conductometric titration showed insignificant differences between neat and sheared samples. These findings suggest that viscosity changes in CNC suspensions during steady shear flow arise from physical fracturing of the CNCs perpendicular to their length, and not significantly from chemical degradation or reduction in residual amorphous content.
Collapse
Affiliation(s)
- Bradley P Sutliff
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| | - Connor Farrell
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| | - Stephen M Martin
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA
| | - Michael J Bortner
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
| |
Collapse
|
37
|
Rivera-Enríquez CE, Ojeda-Martínez M, Cano ME, Ojeda-Martínez ML, Barrera-Rodríguez A, Quintana-Ruiz M, Velásquez-Ordóñez C. Improvement of Magnetic Saturation in Fe 3O 4@Y 2O 3:Eu 3+ Nanocomposites Through the Manipulation of Eu 3+ Activators. J Fluoresc 2023:10.1007/s10895-023-03504-9. [PMID: 37987984 DOI: 10.1007/s10895-023-03504-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
Fe3O4@Y2O3:Eu3+ nanocomposites and Y2O3:Eu3+ nanophosphors were synthesized using the hydrothermal method. Nanocomposites were analyzed using X-ray diffraction (XRD), Rietveld refinements, Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, photoluminescence (PL), vibrating sample magnetometer (VSM), and high-resolution transmission electron microscopy (HRTEM). Nanocomposites exhibit superparamagnetic behavior that improves with Eu3+, resulting in increased magnetic saturation. In contrast to Y2O3:Eu3+ nanophosphors, the Fe3O4@Y2O3:Eu3+ nanocomposites display a distinctive characteristic whereby the photoluminescence intensity increases with a reduced concentration of Eu3+. The requirement of increasing the thickness of the Y2O3:Eu3+ outer layer to achieve improved light emission can be circumvented by solely manipulating the concentration of activators, without compromising the magnetic saturation of the nanocomposites. The luminescent and magnetic characteristics of Fe3O4@Y2O3:Eu3+ nanocomposites can be readily optimized using straightforward synthesis parameters, making them promising candidates for potential applications in theranostic medicine.
Collapse
Affiliation(s)
- C E Rivera-Enríquez
- Centro Universitario de los Valles, Universidad de Guadalajara, Jalisco, 46600, México
| | - M Ojeda-Martínez
- Centro Universitario de los Valles, Universidad de Guadalajara, Jalisco, 46600, México
| | - M E Cano
- Centro Universitario de la Ciénega, Universidad de Guadalajara, Jalisco, 47820, México
| | - M L Ojeda-Martínez
- Centro Universitario de los Valles, Universidad de Guadalajara, Jalisco, 46600, México
| | - A Barrera-Rodríguez
- Centro Universitario de la Ciénega, Universidad de Guadalajara, Jalisco, 47820, México
| | - M Quintana-Ruiz
- Microscopia de Alta Resolución, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, 78210, México
| | - C Velásquez-Ordóñez
- Centro Universitario de los Valles, Universidad de Guadalajara, Jalisco, 46600, México.
| |
Collapse
|
38
|
Santos-Cottin D, Mohelský I, Wyzula J, Le Mardelé F, Kapon I, Nasrallah S, Barišić N, Živković I, Soh JR, Guo F, Rigaux K, Puppin M, Dil JH, Gudac B, Rukelj Z, Novak M, Kuzmenko AB, Homes CC, Dietl T, Orlita M, Akrap A. EuCd_{2}As_{2}: A Magnetic Semiconductor. PHYSICAL REVIEW LETTERS 2023; 131:186704. [PMID: 37977632 DOI: 10.1103/physrevlett.131.186704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/22/2023] [Accepted: 10/10/2023] [Indexed: 11/19/2023]
Abstract
EuCd_{2}As_{2} is now widely accepted as a topological semimetal in which a Weyl phase is induced by an external magnetic field. We challenge this view through firm experimental evidence using a combination of electronic transport, optical spectroscopy, and excited-state photoemission spectroscopy. We show that the EuCd_{2}As_{2} is in fact a semiconductor with a gap of 0.77 eV. We show that the externally applied magnetic field has a profound impact on the electronic band structure of this system. This is manifested by a huge decrease of the observed band gap, as large as 125 meV at 2 T, and, consequently, by a giant redshift of the interband absorption edge. However, the semiconductor nature of the material remains preserved. EuCd_{2}As_{2} is therefore a magnetic semiconductor rather than a Dirac or Weyl semimetal, as suggested by ab initio computations carried out within the local spin-density approximation.
Collapse
Affiliation(s)
- D Santos-Cottin
- Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - I Mohelský
- LNCMI, CNRS-UGA-UPS-INSA, 25, avenue des Martyrs, F-38042 Grenoble, France
| | - J Wyzula
- Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
- LNCMI, CNRS-UGA-UPS-INSA, 25, avenue des Martyrs, F-38042 Grenoble, France
| | - F Le Mardelé
- Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
- LNCMI, CNRS-UGA-UPS-INSA, 25, avenue des Martyrs, F-38042 Grenoble, France
| | - I Kapon
- Department of Physics, University of Geneva, CH-1204 Geneva, Switzerland
| | - S Nasrallah
- Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
- Institute of Solid State Physics, TU Wien, A-1040 Vienna, Austria
| | - N Barišić
- Institute of Solid State Physics, TU Wien, A-1040 Vienna, Austria
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10000 Zagreb, Croatia
| | - I Živković
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - J R Soh
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - F Guo
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - K Rigaux
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - M Puppin
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - J H Dil
- Institut de Physique, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - B Gudac
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10000 Zagreb, Croatia
| | - Z Rukelj
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10000 Zagreb, Croatia
| | - M Novak
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10000 Zagreb, Croatia
| | - A B Kuzmenko
- Department of Physics, University of Geneva, CH-1204 Geneva, Switzerland
| | - C C Homes
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Tomasz Dietl
- International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland
- WPI Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - M Orlita
- LNCMI, CNRS-UGA-UPS-INSA, 25, avenue des Martyrs, F-38042 Grenoble, France
- Institute of Physics, Charles University, CZ-12116 Prague, Czech Republic
| | - Ana Akrap
- Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
| |
Collapse
|
39
|
Kanbar HJ, Zein-Eddin A, Ammami MT, Benamar A. Electrokinetic remediation of estuarine sediments using a large reactor: spatial variation of physicochemical, mineral, and chemical properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117688-117705. [PMID: 37867172 DOI: 10.1007/s11356-023-30271-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 10/01/2023] [Indexed: 10/24/2023]
Abstract
The treatment and beneficial use of polluted or contaminated environmental matrices have become major issues, especially as the world strives toward a zero-waste policy. In this regard, dredged sediments need to be treated before they can be used in an environmentally safe and sustainable manner. Therefore, this work aims to treat estuarine sediments and, more importantly, use physicochemical, mineral, organic, and chemical information to understand the reactions that occur upon treatment. Dredged estuarine sediments were collected from Tancarville (Seine River estuary, France) and subjected to electrokinetic (EK) remediation using a 128-L laboratory-scale reactor. The sediments were treated 8 h per day for 21 days. The electric (voltage and current) and physicochemical (pH and electric conductivity) parameters were monitored during treatment. Sediments were collected from various sections in the reactor at the end of the experiment (lengthwise, widthwise, and depthwise). The spatial variation was investigated in terms of organic, mineral, and metal contents. Statistical analyses proved that the variation occurred only in the lengthwise direction. Furthermore, three main phases described the treatment, which were mainly linked to carbonate dissolution and pH variation. The results also showed that the trace elements Ni and Zn were reduced by 21% and 19%, respectively, without a direct link to pH, while Ca and Mg were only redistributed. The buffering capacity of the anodic sediment was reduced due to carbonate dissolution. The treated sediments showed reduced contents in trace metals without affecting major elements that can be useful in agriculture (i.e., Ca and Mg).
Collapse
Affiliation(s)
- Hussein J Kanbar
- Laboratoire Ondes et Milieux Complexes (LOMC), UMR 6294 CNRS, University of Le Havre Normandy (ULHN), 76600, Le Havre, France.
| | - Ahmad Zein-Eddin
- Laboratoire Ondes et Milieux Complexes (LOMC), UMR 6294 CNRS, University of Le Havre Normandy (ULHN), 76600, Le Havre, France
| | - Mohamed-Tahar Ammami
- Laboratoire Ondes et Milieux Complexes (LOMC), UMR 6294 CNRS, University of Le Havre Normandy (ULHN), 76600, Le Havre, France
| | - Ahmed Benamar
- Laboratoire Ondes et Milieux Complexes (LOMC), UMR 6294 CNRS, University of Le Havre Normandy (ULHN), 76600, Le Havre, France
| |
Collapse
|
40
|
Furcas F, Lothenbach B, Mundra S, Borca CN, Albert CC, Isgor OB, Huthwelker T, Angst UM. Transformation of 2-Line Ferrihydrite to Goethite at Alkaline pH. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:16097-16108. [PMID: 37822288 PMCID: PMC10603785 DOI: 10.1021/acs.est.3c05260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
The transformation of 2-line ferrihydrite to goethite from supersaturated solutions at alkaline pH ≥ 13.0 was studied using a combination of benchtop and advanced synchrotron techniques such as X-ray diffraction, thermogravimetric analysis, and X-ray absorption spectroscopy. In comparison to the transformation rates at acidic to mildly alkaline environments, the half-life, t1/2, of 2-line ferrihydrite reduces from several months at pH = 2.0, and approximately 15 days at pH = 10.0, to just under 5 h at pH = 14.0. The calculated-first order rate constants of transformation, k, increase exponentially with respect to the pH and follow the progression log10 k = log10 k0 + a·pH3. Simultaneous monitoring of the aqueous Fe(III) concentration via inductively coupled plasma optical emission spectroscopy demonstrates that (i) goethite likely precipitates from solution and (ii) its formation is rate-limited by the comparatively slow redissolution of 2-line ferrihydrite. The analysis presented can be used to estimate the transformation rate of naturally occurring 2-line ferrihydrite in aqueous electrolytes characteristic to mine and radioactive waste tailings as well as the formation of corrosion products in cementitious pore solutions.
Collapse
Affiliation(s)
- Fabio
E. Furcas
- Institute
for Building Materials, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Shishir Mundra
- Institute
for Building Materials, ETH Zürich, 8093 Zürich, Switzerland
| | - Camelia N. Borca
- Swiss
Light Source, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | | | - O. Burkan Isgor
- School
of Civil and Construction Engineering, Oregon
State University, Corvallis, 97331 Oregon, United States
| | - Thomas Huthwelker
- Swiss
Light Source, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Ueli M. Angst
- Institute
for Building Materials, ETH Zürich, 8093 Zürich, Switzerland
| |
Collapse
|
41
|
Chaudhary S, Kędziera D, Rafiński Z, Dobrzańska L. Solvent-induced polymorphism in dipodal N-donor ligands containing a biphenyl core. RSC Adv 2023; 13:30625-30632. [PMID: 37859777 PMCID: PMC10582825 DOI: 10.1039/d3ra05713e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
Polymorph screenings for two related dipodal N-donor ligands containing a biphenyl core, namely 4,4'-bis(pyridin-4-ylmethyl)-1,1'-biphenyl (1) and 4,4'-bis(1H-imidazol-1-ylmethyl)-1,1'-biphenyl (2) were performed, and the new phases were isolated and their crystal structures analysed. Profiling included methods such as PXRD and thermal analysis. Hirshfeld surface analyses, as well as crystal lattice energy calculations provided deeper insight in the interplay of the intermolecular forces and the stability of the isolated phases. Furthermore, our studies revealed the presence of solvent-induced polymorphism, whereby the metastable phase is dominant upon crystallisation from THF (1a) and EtOH (2c). Upon heating, these phases transform into a more stable form, whereby the transformations were followed by PXRD studies (1, 2).
Collapse
Affiliation(s)
- Simran Chaudhary
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Dariusz Kędziera
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Zbigniew Rafiński
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| | - Liliana Dobrzańska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń Gagarina 7, 87-100 Toruń Poland
| |
Collapse
|
42
|
Suffo-Pino M, Cauqui-López MÁ, Pérez-Muñoz C, Goma-Jiménez D, Fernández-Delgado N, Herrera-Collado M. Biphasic Bioceramic Obtained from Byproducts of Sugar Beet Processing for Use in Bioactive Coatings and Bone Fillings. J Funct Biomater 2023; 14:499. [PMID: 37888165 PMCID: PMC10607742 DOI: 10.3390/jfb14100499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/15/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
This study focuses on developing hydroxyapatite synthesized from a CaCO3-rich byproduct of sugar beet processing called Carbocal® using a hydrothermal reactor. The purpose of this biomaterial is to enhance the osteoinductivity of implantable surfaces and serve as a bone filler, providing a sustainable and economically more affordable alternative. This research involved compositional analysis and micro- and macrostructural physicochemical characterization, complemented with bioactivity and live/dead assays. The biphasic nature of the Carbocal®-derived sample was significant within the context of the bioactivity concept previously proposed in the literature. The bioactivity of the biomaterial was demonstrated through a viability test, where the cell growth was nearly equivalent to that of the positive control. For comparison purposes, the same tests were conducted with two additional samples: hydroxyapatite obtained from CaCO3 and commercial hydroxyapatite. The resulting product of this process is biocompatible and possesses properties similar to natural hydroxyapatite. Consequently, this biomaterial shows potential as a scaffold in tissue engineering and as an adhesive filler to promote bone regeneration within the context of the circular bioeconomy in the geographical area proposed.
Collapse
Affiliation(s)
- Miguel Suffo-Pino
- Department of Mechanical Engineering and Industrial Design, High Engineering School, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain;
| | - Miguel Ángel Cauqui-López
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry IMEYMAT, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain; (M.Á.C.-L.); (D.G.-J.); (N.F.-D.); (M.H.-C.)
| | - Celia Pérez-Muñoz
- Department of Mechanical Engineering and Industrial Design, High Engineering School, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain;
| | - Daniel Goma-Jiménez
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry IMEYMAT, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain; (M.Á.C.-L.); (D.G.-J.); (N.F.-D.); (M.H.-C.)
| | - Natalia Fernández-Delgado
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry IMEYMAT, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain; (M.Á.C.-L.); (D.G.-J.); (N.F.-D.); (M.H.-C.)
| | - Miriam Herrera-Collado
- Department of Materials Science and Metallurgical Engineering and Inorganic Chemistry IMEYMAT, Campus Río San Pedro, University of Cádiz, Puerto Real, 11510 Cádiz, Spain; (M.Á.C.-L.); (D.G.-J.); (N.F.-D.); (M.H.-C.)
| |
Collapse
|
43
|
Collin M, Song Y, Prentice DP, Arnold RA, Ellison K, Simonetti DA, Bauchy M, Sant GN. Fly ash degree of reaction in hypersaline NaCl and CaCl 2 brines: Effects of calcium-based additives. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 170:103-111. [PMID: 37562200 DOI: 10.1016/j.wasman.2023.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 07/15/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Abstract
The pozzolanic reaction of fly ashes with calcium-based additives can be effectively used to solidify and chemically stabilize (S&S process) highly concentrated brines inside a cementitious matrix. However, complex interactions between the fly ash, the additive, and the brine typically affect the phases formed at equilibrium, and the resulting solid capacity to successfully encapsulate the brine and its contaminants. Here, the performances of two types of fly ash (a Class C and Class F fly ash) are assessed when combined with different additives (two types of cement, or lime with and without NaAlO2), and two types of brine (NaCl or CaCl2) over a range of concentrations (0 ≤ [Cl-] ≤ 2 M). The best performing matrices - i.e., the matrices with the highest Cl-containing phases content - were identified using XRD and TGA. The experimental results were then combined with thermodynamic modeling to dissociate the contribution of the fly ash from that of the additives. All results were implemented in a machine learning model that showed good accuracy at predicting the fly ash degree of reaction, allowing for the robust prediction of extended systems performance when combined with thermodynamic modeling.
Collapse
Affiliation(s)
- Marie Collin
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA; Institute for Carbon Management, University of California, Los Angeles, CA, USA.
| | - Yu Song
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA; Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA
| | - Dale P Prentice
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA; Institute for Carbon Management, University of California, Los Angeles, CA, USA
| | - Ross A Arnold
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA; Institute for Carbon Management, University of California, Los Angeles, CA, USA
| | - Kirk Ellison
- Electric Power Research Institute, Charlotte, NC 28262, USA
| | - Dante A Simonetti
- Institute for Carbon Management, University of California, Los Angeles, CA, USA; Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA, USA
| | - Mathieu Bauchy
- Institute for Carbon Management, University of California, Los Angeles, CA, USA; Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA
| | - Gaurav N Sant
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, USA; Institute for Carbon Management, University of California, Los Angeles, CA, USA; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA; California Nanosystems Institute (CNSI), University of California, Los Angeles, CA, USA.
| |
Collapse
|
44
|
Bellino A, Baldantoni D. Biodiversity, Ecology and Distribution of Mediterranean Charophytes in Southern Italy. PLANTS (BASEL, SWITZERLAND) 2023; 12:3434. [PMID: 37836174 PMCID: PMC10574563 DOI: 10.3390/plants12193434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023]
Abstract
Charophytes are amongst the most endangered primary producers in freshwater and coastal ecosystems. In spite of the extensive research on the group and its ecological and conservational relevance, scarce information is available on Mediterranean environments, especially rivers and small water reservoirs, where charophytes face challenging summer droughts and changes in hydrological regimes, as well as pervasive anthropogenic pressures. This research aimed, through repeated field observations, detailed analyses of population traits, and extensive characterization of the colonized environments, to foster an understanding of the distribution, biodiversity, and ecology of charophytes in an area of exceptional environmental value and that is still uninvestigated in relation to its charophyte flora, the southern Campania region (Italy). Overall, 17 populations were discovered, belonging to 4 taxa of the Chara genus: C. globularis, C. gymnophylla, C. vulgaris, and C. vulgaris var. papillata, reduced to 12 populations and to the first 3 taxa by the end of the study. The species occupied different ecological niches and colonized environments such as rivers and small ponds, with environment-dependent morphotypes. The occurrence of few taxa with a wide distribution, often forming ephemeral populations, suggests ongoing constraints on charophyte biodiversity in the area, favoring opportunistic species that are able to benefit from temporary refugia.
Collapse
|
45
|
Cardoso BD, Fernandes DEM, Amorim CO, Amaral VS, Coutinho PJG, Rodrigues ARO, Castanheira EMS. Magnetoliposomes with Calcium-Doped Magnesium Ferrites Anchored in the Lipid Surface for Enhanced DOX Release. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2597. [PMID: 37764626 PMCID: PMC10535675 DOI: 10.3390/nano13182597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Nanotechnology has provided a new insight into cancer treatment by enabling the development of nanocarriers for the encapsulation, transport, and controlled release of antitumor drugs at the target site. Among these nanocarriers, magnetic nanosystems have gained prominence. This work presents the design, development, and characterization of magnetoliposomes (MLs), wherein superparamagnetic nanoparticles are coupled to the lipid surface. For this purpose, dimercaptosuccinic acid (DMSA)-functionalized Ca0.25Mg0.75Fe2O4 superparamagnetic nanoparticles were prepared for the first time. The magnetic nanoparticles demonstrated a cubic shape with an average size of 13.36 nm. Furthermore, their potential for photothermal hyperthermia was evaluated using 4 mg/mL, 2 mg/mL, and 1 mg/mL concentrations of NPs@DMSA, which demonstrated a maximum temperature variation of 20.4 °C, 11.4 °C, and 7.3 °C, respectively, during a 30 min NIR-laser irradiation. Subsequently, these nanoparticles were coupled to the lipid surface of DPPC/DSPC/CHEMS and DPPC/DSPC/CHEMS/DSPE-PEG-based MLs using a new synthesis methodology, exhibiting average sizes of 153 ± 8 nm and 136 ± 2 nm, respectively. Doxorubicin (DOX) was encapsulated with high efficiency, achieving 96% ± 2% encapsulation in non-PEGylated MLs and 98.0% ± 0.6% in stealth MLs. Finally, drug release assays of the DOX-loaded DPPC/DSPC/CHEMS MLs were performed under different conditions of temperature (37 °C and 42 °C) and pH (5.5 and 7.4), simulating physiological and therapeutic conditions. The results revealed a higher release rate at 42 °C and acidic pH. Release rates significantly increased when introducing the stimulus of laser-induced photothermal hyperthermia at 808 nm (1 W/cm2) for 5 min. After 48 h of testing, at pH 5.5, 67.5% ± 0.5% of DOX was released, while at pH 7.4, only a modest release of 27.0% ± 0.1% was achieved. The results demonstrate the potential of the MLs developed in this work to the controlled release of DOX under NIR-laser stimulation and acidic environments and to maintain a sustained and reduced release profile in physiological environments with pH 7.4.
Collapse
Affiliation(s)
- Beatriz D. Cardoso
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, 4710-057 Braga, Portugal (D.E.M.F.)
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal
- CMEMS—UMinho, Universidade do Minho, DEI, 4800-058 Guimarães, Portugal
- LABBELS—Associate Laboratory, 4800-058 Guimarães, Portugal
| | - Diana E. M. Fernandes
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, 4710-057 Braga, Portugal (D.E.M.F.)
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal
| | - Carlos O. Amorim
- Physics Department and CICECO, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Vítor S. Amaral
- Physics Department and CICECO, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Paulo J. G. Coutinho
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, 4710-057 Braga, Portugal (D.E.M.F.)
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal
| | - Ana Rita O. Rodrigues
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, 4710-057 Braga, Portugal (D.E.M.F.)
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal
| | - Elisabete M. S. Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, 4710-057 Braga, Portugal (D.E.M.F.)
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, Universidade do Minho, 4710-057 Braga, Portugal
| |
Collapse
|
46
|
Rahmat RA, Humphries MA, Saedon NA, Self PG, Linacre AMT. Diagnostic models to predict nuclear DNA and mitochondrial DNA recovery from incinerated teeth. Int J Legal Med 2023; 137:1353-1360. [PMID: 37306739 DOI: 10.1007/s00414-023-03017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 05/09/2023] [Indexed: 06/13/2023]
Abstract
Teeth are frequently used for human identification from burnt remains, as the structure of a tooth is resilient against heat exposure. The intricate composition of hydroxyapatite (HA) mineral and collagen in teeth favours DNA preservation compared to soft tissues. Regardless of the durability, the integrity of the DNA structure in teeth can still be disrupted when exposed to heat. Poor DNA quality can negatively affect the success of DNA analysis towards human identification. The process of isolating DNA from biological samples is arduous and costly. Thus, an informative pre-screening method that could aid in selecting samples that can potentially yield amplifiable DNA would be of excellent value. A multiple linear regression model to predict the DNA content in incinerated pig teeth was developed based on the colourimetry, HA crystallite size and quantified nuclear and mitochondrial DNA. The chromaticity a* was found to be a significant predictor of the regression model. This study outlines a method to predict the viability of extracting nuclear and mitochondrial DNA from pig teeth that were exposed to a wide range of temperatures (27 to 1000 °C) with high accuracy (99.5-99.7%).
Collapse
Affiliation(s)
- Rabiah A Rahmat
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, 50603, Malaysia.
| | - Melissa A Humphries
- School and Mathematical Sciences, The University of Adelaide, Adelaide, South Australia, 5006, Australia
- ARC Centre of Excellence for Mathematical and Statistical Frontiers, the University of Adelaide, Adelaide, South Australia, Australia
| | - Nor A Saedon
- Forensic DNA Division, Forensic Science Analysis Centre, Department of Chemistry, Selangor, 46661, Malaysia
| | - Peter G Self
- CSIRO, Land and Water, Locked Bag 2, Glen Osmond, South Australia, 5064, Australia
| | - Adrian M T Linacre
- College of Science and Engineering, Flinders University, Adelaide, South Australia, 5042, Australia
| |
Collapse
|
47
|
Kuzmin A, Pudza I, Dile M, Laganovska K, Zolotarjovs A. Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5825. [PMID: 37687518 PMCID: PMC10488788 DOI: 10.3390/ma16175825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
It is known that doping zinc sulfide (ZnS) nanoparticles with Mn or Cu ions significantly affects their luminescent properties. Herein, we investigated how dopant atoms are incorporated into the structure of ZnS using X-ray diffraction and multi-edge X-ray absorption spectroscopy. The observed broadening of the X-ray diffraction patterns indicates an average crystallite size of about 6 nm. By analyzing the Zn, Mn, and Cu K-edge extended X-ray absorption fine structure (EXAFS) spectra using the reverse Monte Carlo method, we were able to determine the relaxations of the local environments around the dopants. Our findings suggested that upon the substitution of Zn by Mn or Cu ions, there is a shortening of the Cu-S bonds by 0.08 Å, whereas the Mn-S bonds exhibited lengthening by 0.07 Å. These experimental results were further confirmed by first-principles density functional theory calculations, which explained the increase in the Mn-S bond lengths due to the high-spin state of Mn2+ ions.
Collapse
Affiliation(s)
- Alexei Kuzmin
- Institute of Solid State Physics, University of Latvia, Kengaraga Street 8, LV-1063 Riga, Latvia; (I.P.); (M.D.); (K.L.); (A.Z.)
| | | | | | | | | |
Collapse
|
48
|
Pereira M, Rodrigues ARO, Amaral L, Côrte-Real M, Santos-Pereira C, Castanheira EMS. Bovine Lactoferrin-Loaded Plasmonic Magnetoliposomes for Antifungal Therapeutic Applications. Pharmaceutics 2023; 15:2162. [PMID: 37631376 PMCID: PMC10458800 DOI: 10.3390/pharmaceutics15082162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Bovine lactoferrin (bLf) is a milk-derived protein that exhibits potent broad-spectrum antifungal activity against multiple fungi. bLf is susceptible to degradation, while some of its properties depend on the tertiary structure. So, the encapsulation of bLf in stimuli-responsive therapeutic formulations provides an added value to enhance its biological activities. Plasmonic magnetoliposomes (PMLs) arise as promising nanocarriers for dual hyperthermia (magneto-photothermia) and local chemotherapy, since the combination of magnetic and gold nanoparticles (NPs) in a single nanosystem (multifunctional liposomes) enables the targeting and controlled release of loaded drugs. In this work, plasmonic magnetoliposomes (PMLs) containing manganese ferrite nanoparticles (28 nm size) and gold nanoparticles (5-7.5 nm size), functionalized with 11-mercaptoundecanoic acid or octadecanethiol, were prepared and loaded with bLf. The NPs' optical, magnetic and structural properties were measured via UV/vis/NIR absorption spectroscopy, SQUID and TEM, respectively. The Specific Absorption Rate (SAR) was calculated to assess the capabilities for magnetic and photothermal hyperthermia. Finally, the antifungal potential of bLf-loaded PMLs and their mechanism of internalization were assessed in Saccharomyces cerevisiae by counting the colony forming units and using fluorescence microscopy. The results demonstrate that PMLs are mainly internalized through an energy- and temperature-dependent endocytic process, though the contribution of a diffusion component cannot be discarded. Most notably, only bLf-loaded plasmonic magnetoliposomes display cytotoxicity with an efficiency similar to free bLf, attesting their promising potential for bLf delivery in the context of antifungal therapeutic interventions.
Collapse
Affiliation(s)
- Mélanie Pereira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET (Laboratory of Physics for Materials and Emergent Technologies), Associate Laboratory, 4710-057 Braga, Portugal
| | - Ana Rita O. Rodrigues
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET (Laboratory of Physics for Materials and Emergent Technologies), Associate Laboratory, 4710-057 Braga, Portugal
| | - Leslie Amaral
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal
| | - Manuela Côrte-Real
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal
| | - Cátia Santos-Pereira
- CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Elisabete M. S. Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LaPMET (Laboratory of Physics for Materials and Emergent Technologies), Associate Laboratory, 4710-057 Braga, Portugal
| |
Collapse
|
49
|
Williamson E, Sun Z, Tappan BA, Brutchey RL. Predictive Synthesis of Copper Selenides Using a Multidimensional Phase Map Constructed with a Data-Driven Classifier. J Am Chem Soc 2023; 145:17954-17964. [PMID: 37540836 PMCID: PMC10436277 DOI: 10.1021/jacs.3c05490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Indexed: 08/06/2023]
Abstract
Copper selenides are an important family of materials with applications in catalysis, plasmonics, photovoltaics, and thermoelectrics. Despite being a binary material system, the Cu-Se phase diagram is complex and contains multiple crystal structures in addition to several metastable structures that are not found on the thermodynamic phase diagram. Consequently, the ability to synthetically navigate this complex phase space poses a significant challenge. We demonstrate that data-driven learning can successfully map this phase space in a minimal number of experiments. We combine soft chemistry (chimie douce) synthetic methods with multivariate analyses via classification techniques to enable predictive phase determination. A surrogate model was constructed with experimental data derived from a design matrix of four experimental variables: C-Se bond strength of the selenium precursor, time, temperature, and solvent composition. The reactions in the surrogate model resulted in 11 distinct phase combinations of copper selenide. These data were used to train a classification model that predicts the phase with 95.7% accuracy. The resulting decision tree enabled conclusions to be drawn about how the experimental variables affect the phase and provided prescriptive synthetic conditions for specific phase isolation. This guided the accelerated phase targeting in a minimum number of experiments of klockmannite CuSe, which could not be isolated in any of the reactions used to construct the surrogate model. The reaction conditions that the model predicted to synthesize klockmannite CuSe were experimentally validated, highlighting the utility of this approach.
Collapse
Affiliation(s)
- Emily
M. Williamson
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Zhaohong Sun
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Bryce A. Tappan
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Richard L. Brutchey
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| |
Collapse
|
50
|
Milita S, Zaquin T, Fermani S, Montroni D, Pinkas I, Barba L, Falini G, Mass T. Assembly of the Intraskeletal Coral Organic Matrix during Calcium Carbonate Formation. CRYSTAL GROWTH & DESIGN 2023; 23:5801-5811. [PMID: 37547884 PMCID: PMC10401569 DOI: 10.1021/acs.cgd.3c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/01/2023] [Indexed: 08/08/2023]
Abstract
Scleractinia coral skeleton formation occurs by a heterogeneous process of nucleation and growth of aragonite in which intraskeletal soluble organic matrix molecules, usually referred to as SOM, play a key role. Several studies have demonstrated that they influence the shape and polymorphic precipitation of calcium carbonate. However, the structural aspects that occur during the growth of aragonite have received less attention. In this research, we study the deposition of calcium carbonate on a model substrate, silicon, in the presence of SOM extracted from the skeleton of two coral species representative of different living habitats and colonization strategies, which we previously characterized. The study is performed mainly by grazing incidence X-ray diffraction with the support of Raman spectroscopy and electron and optical microscopies. The results show that SOM macromolecules once adsorbed on the substrate self-assembled in a layered structure and induced the oriented growth of calcite, inhibiting the formation of vaterite. Differently, when SOM macromolecules were dispersed in solution, they induced the deposition of amorphous calcium carbonate (ACC), still preserving a layered structure. The entity of these effects was species-dependent, in agreement with previous studies. In conclusion, we observed that in the setup required by the experimental procedure, the SOM from corals appears to present a 2D lamellar structure. This structure is preserved when the SOM interacts with ACC but is lost when the interaction occurs with calcite. This knowledge not only is completely new for coral biomineralization but also has strong relevance in the study of biomineralization on other organisms.
Collapse
Affiliation(s)
- Silvia Milita
- CNR—Institute
for Microelectronic and Microsystems, via Gobetti 101, Bologna 40129, Italy
| | - Tal Zaquin
- Department
of Marine Biology, The Leon H. Charney School of Marine Sciences, University of Haifa, Mt. Carmel, Haifa 3498838, Israel
| | - Simona Fermani
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, Bologna 40126, Italy
- Interdepartmental
Centre for Industrial Research Health Sciences & Technologie, University of Bologna, Bologna 40064, Italy
| | - Devis Montroni
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, Bologna 40126, Italy
| | - Iddo Pinkas
- Department
of Chemical Research Support, Weizmann Institute
of Science, Rehovot 76100, Israel
| | - Luisa Barba
- CNR
-Institute
of Crystallography, Elettra Synchrotron, Trieste I-34100, Italy
| | - Giuseppe Falini
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, Bologna 40126, Italy
- CNR,
Institute for Nanostructured
Materials, via Gobetti
101, Bologna 40129, Italy
| | - Tali Mass
- Department
of Marine Biology, The Leon H. Charney School of Marine Sciences, University of Haifa, Mt. Carmel, Haifa 3498838, Israel
| |
Collapse
|