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Navarro-López DE, Perfecto-Avalos Y, Zavala A, de Luna MA, Sanchez-Martinez A, Ceballos-Sanchez O, Tiwari N, López-Mena ER, Sanchez-Ante G. Unraveling the Complex Interactions: Machine Learning Approaches to Predict Bacterial Survival against ZnO and Lanthanum-Doped ZnO Nanoparticles. Antibiotics (Basel) 2024; 13:220. [PMID: 38534655 DOI: 10.3390/antibiotics13030220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
The rise in antibiotic-resistant bacteria is a global health challenge. Due to their unique properties, metal oxide nanoparticles show promise in addressing this issue. However, optimizing these properties requires a deep understanding of complex interactions. This study incorporated data-driven machine learning to predict bacterial survival against lanthanum-doped ZnO nanoparticles. The effect of incorporation of lanthanum ions on ZnO was analyzed. Even with high lanthanum concentration, no significant variations in structural, morphological, and optical properties were observed. The antibacterial activity of La-doped ZnO nanoparticles against Gram-positive and Gram-negative bacteria was qualitatively and quantitatively evaluated. Nanoparticles induce 60%, 95%, and 55% bacterial death against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus, respectively. Algorithms such as Multilayer Perceptron, K-Nearest Neighbors, Gradient Boosting, and Extremely Random Trees were used to predict the bacterial survival percentage. Extremely Random Trees performed the best among these models with 95.08% accuracy. A feature relevance analysis extracted the most significant attributes to predict the bacterial survival percentage. Lanthanum content and particle size were irrelevant, despite what can be assumed. This approach offers a promising avenue for developing effective and tailored strategies to reduce the time and cost of developing antimicrobial nanoparticles.
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Affiliation(s)
- Diego E Navarro-López
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
| | - Yocanxóchitl Perfecto-Avalos
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
| | - Araceli Zavala
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
| | - Marco A de Luna
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
| | - Araceli Sanchez-Martinez
- Departamento de Ingenieria de Proyectos, Centro Universitario de Ciencias Exactas e Ingenierias (CUCEI), Universidad de Guadalajara, Av. José Guadalupe Zuno # 48, Industrial Los Belenes, Zapopan 45157, Jalisco, Mexico
| | - Oscar Ceballos-Sanchez
- Departamento de Ingenieria de Proyectos, Centro Universitario de Ciencias Exactas e Ingenierias (CUCEI), Universidad de Guadalajara, Av. José Guadalupe Zuno # 48, Industrial Los Belenes, Zapopan 45157, Jalisco, Mexico
| | - Naveen Tiwari
- Center for Research in Biological Chemistry and Molecular Materials (CiQUS), University of Santiago de Compostela, Rúa Jenaro de La Fuente S/N, 15782 Santiago de Compostela, Spain
| | - Edgar R López-Mena
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
| | - Gildardo Sanchez-Ante
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Gral Ramón Corona No. 2514, Colonia Nuevo México, Zapopan 45121, Jalisco, Mexico
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Ajjaq A, Bulut F, Ozturk O, Acar S. Advanced NH 3 Detection by 1D Nanostructured La:ZnO Sensors with Novel Intrinsic p-n Shifting and Ultrahigh Baseline Stability. ACS Sens 2024; 9:895-911. [PMID: 38293781 DOI: 10.1021/acssensors.3c02256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Due to its stability, transportability, and ability to be produced using renewable energy sources, NH3 has become an attractive option for hydrogen production and storage. Detecting NH3 is then essential, being a toxic and flammable gas that can pose dangers if not properly monitored. ZnO chemiresistive sensors have shown great potential in real NH3 monitoring applications; yet, research and development in this area are ongoing due to reported limitations, like baseline instabilities and sensitivity to environmental factors, including temperature, humidity, and interferent gases. Herein, we suggest an approach to obtain sensors with competitive performance based on ZnO semiconducting metal oxides. For this purpose, one-dimensional nanostructured pure and La-doped ZnO films were synthesized hydrothermally. Incorporating large rare earth ions, like La, into the bulk lattice of ZnO is challenging and can lead to surface defects that are influential in gas-sensing reactions. The sensors experienced a temperature-induced p-n shifting at about 100 °C, verified by the Hall effect and AC impedance measurements. The doped sensor showed exceptional stepwise baseline stability and outstanding performance at a relatively low operating temperature (150 °C) with a sensing response of 91 at best (@ 50 ppm NH3) and recorded a tolerance to water vapor up to 70% RH. Alongside p-n shifting, the enhanced performance was discussed in correlation with La doping-triggered changes in the nanostructural and surfacial properties of the films. We validated the proposed technique by producing similar sensors and performing multiple replicates to ensure consistency and reproducibility. We also introduced the fill factor concept into the gas sensor field as a new trustworthy parameter that could improve sensor performance assessment and help rate sensors based on deviation from ideality.
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Affiliation(s)
- Ahmad Ajjaq
- Department of Physics, Faculty of Science, Gazi University, Ankara 06500, Turkey
| | - Fatih Bulut
- Scientific and Technological Research Applications and Research Center, Sinop University, Sinop 57000, Turkey
| | - Ozgur Ozturk
- Department of Electric and Electronics Engineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu 37000, Turkey
| | - Selim Acar
- Department of Physics, Faculty of Science, Gazi University, Ankara 06500, Turkey
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Liu R, Wei Z, Dong W, Wang R, Adams JM, Yang L, Krause SMB. Unraveling the impact of lanthanum on methane consuming microbial communities in rice field soils. Front Microbiol 2024; 15:1298154. [PMID: 38322316 PMCID: PMC10844099 DOI: 10.3389/fmicb.2024.1298154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024] Open
Abstract
The discovery of the lanthanide requiring enzymes in microbes was a significant scientific discovery that opened a whole new avenue of biotechnological research of this important group of metals. However, the ecological impact of lanthanides on microbial communities utilizing methane (CH4) remains largely unexplored. In this study, a laboratory microcosm model experiment was performed using rice field soils with different pH origins (5.76, 7.2, and 8.36) and different concentrations of La3+ in the form of lanthanum chloride (LaCl3). Results clearly showed that CH4 consumption was inhibited by the addition of La3+ but that the response depended on the soil origin and pH. 16S rRNA gene sequencing revealed the genus Methylobacter, Methylosarcina, and Methylocystis as key players in CH4 consumption under La3+ addition. We suggest that the soil microbiome involved in CH4 consumption can generally tolerate addition of high concentrations of La3+, and adjustments in community composition ensured ecosystem functionality over time. As La3+ concentrations increase, the way that the soil microbiome reacts may not only differ within the same environment but also vary when comparing different environments, underscoring the need for further research into this subject.
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Affiliation(s)
- Ruyan Liu
- School of Ecology and Environmental Sciences, East China Normal University, Shanghai, China
| | - Ziting Wei
- School of Ecology and Environmental Sciences, East China Normal University, Shanghai, China
| | - Wanying Dong
- School of Ecology and Environmental Sciences, East China Normal University, Shanghai, China
| | - Rui Wang
- School of Ecology and Environmental Sciences, East China Normal University, Shanghai, China
| | - Jonathan M. Adams
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China
| | - Lin Yang
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China
| | - Sascha M. B. Krause
- School of Ecology and Environmental Sciences, East China Normal University, Shanghai, China
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Kolesnik SS, Bogachev NA, Kolesnikov IE, Orlov SN, Ryazantsev MN, González G, Skripkin MY, Mereshchenko AS. Microcrystalline Luminescent (Eu 1-xLn x) 2bdc 3·nH 2O (Ln = La, Gd, Lu) Antenna MOFs: Effect of Dopant Content on Structure, Particle Morphology, and Luminescent Properties. Molecules 2024; 29:532. [PMID: 38276610 PMCID: PMC10819915 DOI: 10.3390/molecules29020532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
In this work, three series of micro-sized heterometallic europium-containing terephthalate MOFs, (Eu1-xLnx)2bdc3·nH2O (Ln = La, Gd, Lu), are synthesized via an ultrasound-assisted method in an aqueous medium. La3+ and Gd3+-doped terephthalates are isostructural to Eu2bdc3·4H2O. Lu3+-doped compounds are isostructural to Eu2bdc3·4H2O with Lu contents lower than 95 at.%. The compounds that are isostructural to Lu2bdc3·2.5H2O are formed at higher Lu3+ concentrations for the (Eu1-xLux)2bdc3·nH2O series. All materials consist of micrometer-sized particles. The particle shape is determined by the crystalline phase. All the synthesized samples demonstrate an "antenna" effect: a bright-red emission corresponding to the 5D0-7FJ transitions of Eu3+ ions is observed upon 310 nm excitation into the singlet electronic excited state of terephthalate ions. The fine structure of the emission spectra is determined by the crystalline phase due to the different local symmetries of the Eu3+ ions in the different kinds of crystalline structures. The photoluminescence quantum yield and 5D0 excited state lifetime of Eu3+ are equal to 11 ± 2% and 0.44 ± 0.01 ms, respectively, for the Ln2bdc3·4H2O structures. For the (Eu1-xLux)2bdc3·2.5H2O compounds, significant increases in the photoluminescence quantum yield and 5D0 excited state lifetime of Eu3+ are observed, reaching 23% and 1.62 ms, respectively.
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Affiliation(s)
- Stefaniia S. Kolesnik
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
| | - Nikita A. Bogachev
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
| | - Ilya E. Kolesnikov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
| | - Sergey N. Orlov
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
- Institute of Nuclear Industry, Peter the Great St. Petersburg Polytechnic University (SPbSU), 29 Polytechnicheskaya Street, 195251 St. Petersburg, Russia
| | - Mikhail N. Ryazantsev
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, ul. Khlopina 8/3, 194021 St. Petersburg, Russia
| | - Gema González
- School of Physical Sciences and Nanotechnology, Yachay Tech University, Urcuqui 100119, Ecuador;
| | - Mikhail Yu. Skripkin
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
| | - Andrey S. Mereshchenko
- Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034 St. Petersburg, Russia; (S.S.K.); (N.A.B.); (I.E.K.); (S.N.O.); (M.N.R.); (M.Y.S.)
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Wooten DC. A plasmid containing the human metallothionein-II gene selectively distinguishes trivalent lanthanum from several divalent heavy metal cations during monoclonal antibody-assisted agarose gel electrophoresis. Toxicol Ind Health 2024; 40:69-74. [PMID: 38095284 DOI: 10.1177/07482337231222354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Trivalent lanthanide ions are known for their ability to interact with calcium-binding sites in various proteins. There is a need to assess the bioavailability of lanthanides and other heavy metals introduced into the body as components of implants or as contrast agents. This study aimed to develop a method to address bioavailability and/or presence of trivalent lanthanide ions by examining electrophoretic mobility in an agarose gel of a plasmid harboring the human metallothionein-II gene (hMT-II). Mobility of the plasmid was specifically altered by a monoclonal antibody raised against the zinc-binding transcription factor that controls the activity of the hMT-II gene. This study showed that the plasmid acquired a lanthanide-specific mobility pattern that allowed the presence of lanthanide ions to be readily determined in a 0.8% agarose gel. These findings suggest that this plasmid/monoclonal antibody combination under selected conditions may be useful in industrial, environmental, and biomedical settings to identify, separate, or capture lanthanide ions in complex mixtures that contain an array of metal ions.
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Affiliation(s)
- Dennis C Wooten
- Department of Anatomy, Pathology Section, Sam Houston State University, College of Osteopathic Medicine, Conroe, TX, USA
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Suslova EV, Ulyanov AN, Kozlov AP, Shashurin DA, Savilov SV, Chelkov GA. Composition and Electronic Structure of La 2O 3/CNFs@C Core-Shell Nanoparticles with Variable Oxygen Content. Nanomaterials (Basel) 2023; 13:2945. [PMID: 37999299 PMCID: PMC10674885 DOI: 10.3390/nano13222945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
La2O3 nanoparticles stabilized on carbon nanoflake (CNF) matrix were synthesized and graphitized to produce core-shell structures La2O3/CNFs@C. Further oxidation of these structures by nitric acid vapors for 1, 3 or 6 h was performed, and surface-oxidized particles La2O3/CNFs@C_x (x = 1, 3, 6) were produced. Bulk and surface compositions of La2O3/CNFs@C and La2O3/CNFs@C_x were investigated by thermogravimetric analysis and X-ray photoelectron spectroscopy. With increasing the duration of oxidation, the oxygen and La2O3 content in the La2O3/CNFs@C_x samples increased. The electronic structures of samples were assessed by electron paramagnetic resonance. Two paramagnetic centers were associated with unpaired localized and mobile electrons and were registered in all samples. The correlation between bulk and surface compositions of the samples and their electronic structures was investigated for the first time. The impact of the ratio between sp2- and sp3-hybridized C atoms, the number and nature of oxygen-containing groups on the surface and the presence and proportion of coordinated La atoms on the EPR spectra was demonstrated.
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Affiliation(s)
- Evgeniya V. Suslova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia (A.P.K.)
| | - Alexander N. Ulyanov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia (A.P.K.)
| | - Alexey P. Kozlov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia (A.P.K.)
| | - Denis A. Shashurin
- Faculty of Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Serguei V. Savilov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia (A.P.K.)
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Ghezali N, Díaz Verde Á, Illán Gómez MJ. Screening Ba 0.9A 0.1MnO 3 and Ba 0.9A 0.1Mn 0.7Cu 0.3O 3 (A = Mg, Ca, Sr, Ce, La) Sol-Gel Synthesised Perovskites as GPF Catalysts. Materials (Basel) 2023; 16:6899. [PMID: 37959494 PMCID: PMC10647383 DOI: 10.3390/ma16216899] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
Ba0.9A0.1MnO3 (BM-A) and Ba0.9A0.1Mn0.7Cu0.3O3 (BMC-A) (A = Mg, Ca, Sr, Ce, La) perovskite-type mixed oxides were synthesised, characterised, and used for soot oxidation in simulated Gasoline Direct Injection (GDI) engine exhaust conditions. The samples have been obtained by the sol-gel method in an aqueous medium and deeply characterised. The characterization results indicate that the partial substitution of Ba by A metal in BaMnO3 (BM) and BaMn0.7Cu0.3O3 (BMC) perovskites: (i) favours the hexagonal structure of perovskite; (ii) improves the reducibility and the oxygen desorption during Temperature-Programmed Desorption (O2-TPD) tests and, consequently, the oxygen mobility; (iii) mantains the amount of oxygen vacancies and of Mn(IV) and Mn(III) oxidation states, being Mn(IV) the main one; and (iv) for Ba0.9A0.1Mn0.7Cu0.3O3 (BMC-A) series, copper is partially incorporated into the structure. The soot conversion data reveal that Ba0.9La0.1Mn0.7Cu0.3O3 (BMC-La) is the most active catalyst in an inert (100% He) reaction atmosphere, as it presents the highest amount of copper on the surface, and that Ba0.9Ce0.1MnO3 (BM-Ce) is the best one if a low amount of O2 (1% O2 in He) is present, as it combines the highest emission of oxygen with the good redox properties of Ce(IV)/Ce(III) and Mn(IV)/Mn(III) pairs.
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Affiliation(s)
| | | | - María José Illán Gómez
- MCMA Group, Inorganic Chemistry Department and Institute of Materials of the University of Alicante (IUMA), Faculty of Sciences, University of Alicante, 03690 Alicante, Spain; (N.G.); (Á.D.V.)
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Qi T, Zhang S, Li T, Xing L, An S, Li Q, Wang L. Use of La-Co@NPC for Sulfite Oxidation and Arsenic Detoxification Removal for High-Quality Sulfur Resources Recovery in Desulfurization Process. Environ Sci Technol 2023; 57:15759-15770. [PMID: 37747900 DOI: 10.1021/acs.est.3c06258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Ammonia desulfurization is a typical resource-recovery-type wet desulfurization process that is widely used in coal-fired industrial boilers. However, the sulfur recovery is limited by the low oxidation rate of byproduct (ammonium sulfite), leading to secondary SO2 pollution due to its easy decomposability. In addition, the high toxic arsenic trace substances coexisting in desulfurization liquids also reduce the quality of the final sulfate product, facing with high environmental toxicity. In this study, nitrogen-doped porous carbon coembedded with lanthanum and cobalt (La-Co@NPC) was fabricated with heterologous catalytic active sites (Co0) and adsorption sites (LaOCl) to achieve sulfite oxidation and the efficient removal of high toxic trace arsenic for the recovery of high-value ammonium sulfate from the desulfurization liquid. The La-Co@NPC/S(IV) catalytic system can generate numerous strongly oxidizing free radicals (·SO5- and ·O2-) for the sulfite oxidation on the Co0 site, as well as oxidative detoxification of As(III) into As(V). Subsequently, arsenic can be removed through chemical adsorption on LaOCl adsorption sites. By using the dual-functional La-Co@NPC at a concentration of 0.25 g/L, the rate of ammonium sulfite oxidation reached 0.107 mmol/L·s-1, the arsenic (1 mg/L) removal efficiency reached 92%, and the maximum adsorption capacity of As reached up to 123 mg/g. This study can give certain guiding significance to the functional material design and the coordinated control of multiple coal-fired pollutants in desulfurization for high-value recovery of sulfur resources.
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Affiliation(s)
- Tieyue Qi
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Shuo Zhang
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
- WISDRI City Environment Protection Engineering Co., Ltd., 59 Liufang Road, Wuhan 430205, China
| | - Tong Li
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Lei Xing
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Shanlong An
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Qiangwei Li
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Lidong Wang
- Hebei Key Laboratory of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
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9
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Alcolea Palafox M, Belskaya NP, Todorov LT, Kostova IP. Structural Study of a La(III) Complex of a 1,2,3-Triazole Ligand with Antioxidant Activity. Antioxidants (Basel) 2023; 12:1872. [PMID: 37891952 PMCID: PMC10604163 DOI: 10.3390/antiox12101872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The 1,2,3-triazole derivative 2-(4-chlorophenyl)-5-(pyrrolidin-1-yl)-2H-1,2,3-triazole-4-carboxylic acid with potential anticancer activity was used as a ligand in complex formation with the lanthanum(III) ion. The molecular structure and vibrational spectra of the complex were optimized at three DFT levels, and the scaled IR and Raman spectra were compared to the experimental ones. Several scaling procedures were used. Through a detailed analysis, the structure predicted for the newly synthetized La(III) complex was confirmed by the good accordance of the calculated/experimental IR and Raman spectra. The best DFT method appeared to be M06-2X with the Lanl2mb basis set, followed closely by Lanl2dz. The effect of the lanthanide atom on the molecular structure and atomic charge distribution of the triazole ring was evaluated. The potential free radical scavenging activity of both the ligand and the complex was investigated in several radical-generating model systems. The potential mechanisms of antioxidant action (hydrogen atom transfer (HAT) and single-electron transfer (SET)) were elucidated.
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Affiliation(s)
- Mauricio Alcolea Palafox
- Department of Physical Chemistry, Faculty of Chemical Sciences, Complutense University, 28040 Madrid, Spain
| | - Nataliya P. Belskaya
- Department of Technology for Organic Synthesis, Ural Federal University, 19 Mira Str., Yekaterinburg 620012, Russia;
| | - Lozan T. Todorov
- Department of Chemistry, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria;
| | - Irena P. Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria;
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10
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Iguchi S, Tokunaga T, Kamon E, Takenaka Y, Koshimizu S, Watanabe M, Ishimizu T. Lanthanum Supplementation Alleviates Tomato Root Growth Suppression under Low Light Stress. Plants (Basel) 2023; 12:2663. [PMID: 37514277 PMCID: PMC10384870 DOI: 10.3390/plants12142663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/10/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
Supplementation with rare earth elements (REEs) such as lanthanum and cerium has been shown to promote plant elongation and/or increase crop yields. On the other hand, there are reports that REE supplementation of plants has no such effect. The appropriate modes for REE utilization and the underlying mechanism are not fully understood. In this study, we investigated how REE supplementation of plants under low light stress affects plant growth and gene expression. Under low light stress conditions, tomato root elongation was observed to be reduced by about half. This suppression of root elongation was found to be considerably alleviated by 20 mM lanthanum ion supplementation. This effect was plant-species-dependent and nutrient-condition-dependent. Under low light stress, the expression of the genes for phytochrome-interacting factor, which induces auxin synthesis, and several auxin-synthesis-related proteins were markedly upregulated by lanthanum ion supplementation. Thus, we speculate that REE supplementation of plants results in auxin-induced cell elongation and alleviates growth suppression under stress conditions.
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Affiliation(s)
- Syo Iguchi
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Tatsuya Tokunaga
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Eri Kamon
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Yuto Takenaka
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | | | - Masao Watanabe
- Graduate School of Life Sciences, Tohoku University, Sendai 980-8577, Japan
| | - Takeshi Ishimizu
- College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
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11
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Kasenov BK, Kasenova SB, Sagintaeva ZI, Baisanov S, Lu NY, Nukhuly A, Kuanyshbekov EE. Heat Capacity and Thermodynamic Functions of Titanium-Manganites of Lanthanum, Lithium and Sodium of LaLi 2TiMnO 6 and LaNa 2TiMnO 6. Molecules 2023; 28:5194. [PMID: 37446856 DOI: 10.3390/molecules28135194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/02/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Titanium-manganites of LaLi2TiMnO6 and LaNa2TiMnO6 were synthesized by the methods of ceramic technology from the oxides of lanthanum, titanium (IV), manganese (III), and the carbonates of lithium and sodium. The types of their syngony and the parameters of their gratings were determined radiographically. The isobaric heat capacities of titanium-manganites were measured with experimental calorimetry in the range of 298.15-673 K. It was found that on the dependence curve of heat capacity versus temperature of C°p~f(T), for LaLi2TiMnO6 at 348 K and 598 K, and LaNa2TiMnO6 at 348 K, there are abnormal jumps in heat capacity, probably related to phase transitions of the second kind. Taking into account the temperatures of the phase transitions, the equations of the temperature dependence of the heat capacity of titanium-manganites were derived. Their standard entropies were calculated by the ion increments method. Temperature dependences of the thermodynamic functions of S°(T), H°(T)-H°(298.15), and Φxx(T) were calculated using the experimental data on heat capacities and the calculated values of the standard entropies. The standard heat capacities of the studied compounds were calculated by the independent methods of ion increments and Debye, the values of which were in satisfactory agreement with the experimental data. The standard enthalpy of the formation of LaLi2TiMnO6 and LaNa2TiMnO6 was calculated according to the methodology developed by the authors. The conducted electrophysical studies determined the nature of the second-order phase transition and the semiconductor features of their conductivity. Thus, all the above-mentioned data on the experimental and calculated studies of the temperature dependence of heat capacity, the thermodynamic functions to determine a standard enthalpy of formation of LaLi2TiMnO6 and LaNa2TiMnO6, and the investigation of their electrical properties are absolutely new, and they have no analogues.
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Affiliation(s)
- Bulat Kunurovich Kasenov
- Laboratory of Thermochemical Processes, Zh. Abishev Chemical-Metallurgical Institute, 100009 Karaganda, Kazakhstan
| | - Shuga Bulatovna Kasenova
- Laboratory of Thermochemical Processes, Zh. Abishev Chemical-Metallurgical Institute, 100009 Karaganda, Kazakhstan
| | | | - Sailaubai Baisanov
- Laboratory of Metallurgical Melts, Zh. Abishev Chemical-Metallurgical Institute, 100009 Karaganda, Kazakhstan
| | - Natalya Yulievna Lu
- Laboratory of Metallurgical Melts, Zh. Abishev Chemical-Metallurgical Institute, 100009 Karaganda, Kazakhstan
| | - Altynbek Nukhuly
- Department of Chemistry, Pavlodar Pedagogical University, 140002 Pavlodar, Kazakhstan
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12
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Tian H, Wang Q, Li X, Luo L, Li Y. Microstructure Characteristics and Hydrogen Storage Kinetics of Mg 77+xNi 20-xLa 3 ( x = 0, 5, 10, 15) Alloys. Materials (Basel) 2023; 16:4576. [PMID: 37444889 DOI: 10.3390/ma16134576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
Mg77+xNi20-xLa3 (x = 0, 5, 10, 15) alloys were successfully prepared by the vacuum induction melting method. The structural characterizations of the alloys were performed by using X-ray diffraction and scanning electron microscope. The effects of nickel content on the microstructure and hydrogen storage kinetic of the as-cast alloys were investigated. The results showed that the alloys are composed of a primary phase of Mg2Ni, lamella eutectic composites of Mg + Mg2Ni, and some amount of LaMg12 and La2Mg17. Nickel addition significantly improved the hydrogen-absorption kinetic performance of the alloy. At 683 K, Mg77Ni20La3 alloy and Mg82Ni15La3 alloy underwent hydrogen absorption and desorption reactions for 2 h, respectively, and their hydrogen absorption and desorption capacities were 4.16 wt.% and 4.1 wt.%, and 4.92 wt.% and 4.69 wt.%, respectively. Using the Kissinger equation, it was calculated that the activation energy values of Mg77Ni20La3, Mg82Ni15La3, Mg87Ni10La3 and Mg92Ni5La3 alloys were in the range of 68.5~75.2 kJ/mol, much lower than 150~160 kJ/mol of MgH2.
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Affiliation(s)
- Hongxiao Tian
- School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Qichang Wang
- School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Xia Li
- School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Long Luo
- School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Yongzhi Li
- School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China
- Baotou Materials Research Institute of Shanghai Jiao Tong University, Baotou 014010, China
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13
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Galdino NM, Souza VS, Rodembusch FS, Bussamara R, Scholten JD. Biosensors Based on Graphene Oxide Functionalized with Benzothiadiazole-Derived Ligands for the Detection of Cholesterol. ACS Appl Bio Mater 2023. [PMID: 37352500 DOI: 10.1021/acsabm.2c01054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Abstract
In this work, imidazole- or imidazolium-based benzothiadiazole ligands functionalized on graphene oxide combined with cholesterol oxidase constitute efficient, robust, and easy-to-handle materials with high biosensing activity for the detection of cholesterol by colorimetric methods. The presence of lanthanum(III) supported on graphene oxide as a possible coordinating site for the benzothiadiazole ligands was also evaluated, and its bioactivity was compared to that of the analogous material without the rare-earth metal. Our results demonstrated that graphene oxide functionalized with 4,7-bis-(imidazol-1-yl)-2,1,3-benzothiadiazole exhibited the best performance for the quantification of total cholesterol with a sensitivity of 0.0649 (with lanthanum) and 0.0618 au dL mg-1 (without lanthanum). In addition, these materials presented a better percentage of immobilization (>90%), recovered activity, resistance to storage, and detection range than materials containing 4,7-[1-carboxymethyl-(imidazol-3-ium)]-2,1,3-benzothiadiazole chloride. Therefore, the combination of GO-BTD (Im/Ac)/ChOx (with or without lanthanum) affords efficient biosensors for the colorimetric detection of cholesterol.
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Affiliation(s)
- Nathália M Galdino
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, Agronomia, CEP 91501-970 Porto Alegre-RS, Brazil
| | - Virgínia S Souza
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, Agronomia, CEP 91501-970 Porto Alegre-RS, Brazil
| | - Fabiano S Rodembusch
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, Agronomia, CEP 91501-970 Porto Alegre-RS, Brazil
| | - Roberta Bussamara
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, Agronomia, CEP 91501-970 Porto Alegre-RS, Brazil
| | - Jackson D Scholten
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, Agronomia, CEP 91501-970 Porto Alegre-RS, Brazil
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14
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Cancelliere R, Rea G, Micheli L, Mantegazza P, Bauer EM, El Khouri A, Tempesta E, Altomare A, Capelli D, Capitelli F. Electrochemical and Structural Characterization of Lanthanum-Doped Hydroxyapatite: A Promising Material for Sensing Applications. Materials (Basel) 2023; 16:4522. [PMID: 37444835 DOI: 10.3390/ma16134522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
In the quest to find powerful modifiers of screen-printed electrodes for sensing applications, a set of rare earth-doped Ca10-xREx(PO4)6(OH)2 (RE = La, Nd, Sm, Eu, Dy, and Tm and x = 0.01, 0.02, 0.10, and 0.20) hydroxyapatite (HAp) samples were subjected to an in-depth electrochemical characterization using electrochemical impedance spectroscopy and cyclic and square wave voltammetry. Among all of these, the inorganic phosphates doped with lanthanum proved to be the most reliable, revealing robust analytical performances in terms of sensitivity, repeatability, reproducibility, and reusability, hence paving the way for their exploitation in sensing applications. Structural data on La-doped HAp samples were also provided by using different techniques, including optical microscopy, X-ray diffraction, Rietveld refinement from X-ray data, Fourier transform infrared, and Raman vibrational spectroscopies, to complement the electrochemical characterization.
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Affiliation(s)
- Rocco Cancelliere
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Giuseppina Rea
- Institute of Crystallography (IC), National Research Council (CNR), Via Salaria Km 29.300, 00016 Rome, Italy
| | - Laura Micheli
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Pietro Mantegazza
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Elvira Maria Bauer
- Institute of Structure of Matter (ISM), National Research Council (CNR), Via Salaria Km 29.300, 00016 Rome, Italy
| | - Asmaa El Khouri
- Faculté des Sciences Semlalia, BP 2390, Université Cadi Ayyad, Marrakech 40000, Morocco
| | - Emanuela Tempesta
- Institute of Environmental Geology and Geoengineering (IGAG), National Research Council (CNR), Via Salaria Km 29.300, 00016 Rome, Italy
| | - Angela Altomare
- Institute of Crystallography (IC), National Research Council (CNR), Via Amendola 122/o, 70100 Bari, Italy
| | - Davide Capelli
- Institute of Crystallography (IC), National Research Council (CNR), Via Salaria Km 29.300, 00016 Rome, Italy
| | - Francesco Capitelli
- Institute of Crystallography (IC), National Research Council (CNR), Via Salaria Km 29.300, 00016 Rome, Italy
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Rappaport SH, Vineyard T, Hack M, Shah T, Dooley JW. Lanthanum masquerading as foreign body ingestion in a critically ill patient with end-stage renal disease. Am J Health Syst Pharm 2023; 80:430-434. [PMID: 36566498 DOI: 10.1093/ajhp/zxac380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Indexed: 12/26/2022] Open
Abstract
PURPOSE Medication use may affect imaging results. In this case study, we report a case of lanthanum ingestion resulting in imaging consistent with ingested metallic foreign bodies. SUMMARY Hyperphosphatemia affects most patients with end-stage renal disease (ESRD) and is associated with morbidity and mortality. Lanthanum carbonate reduces daily phosphate absorption and is indicated as a non-calcium-based phosphate binder in patients with ESRD. A 58-year-old man with a medical history of stage 5 chronic kidney disease was admitted to the intensive care unit (ICU) for hyperkalemia and acute respiratory failure after a missed dialysis session. He required vasopressors, intubation, and continuous renal replacement therapy. Admission imaging demonstrated several ingested metallic foreign bodies within the colon. There was consideration of colorectal surgery and gastroenterology consultation. On the initial medication reconciliation, no medications that would have the radiographic appearance of ingested metallic foreign bodies were identified. On further review of prescription data available through the electronic medical record, it was noted that the patient had recently filled a prescription for lanthanum despite its apparent discontinuation on a previous admission. After interviewing the patient's wife, it was confirmed that the patient had continued taking lanthanum and that he was swallowing it whole and not chewing it. No consultations or interventions were performed, and the metallic foreign bodies were no longer present on further imaging after a period of 35 days. CONCLUSION Escalation of care was avoided in this patient due to the performance of diligent medication reconciliation and recognition of the impact of lanthanum ingestion on imaging.
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Affiliation(s)
- Stephen H Rappaport
- Department of Pharmacy, University of Rochester Medical Center-Strong Memorial Hospital, Rochester, NY, USA
| | - Tedd Vineyard
- Department of Nursing, University of Rochester Medical Center-Strong Memorial Hospital, Rochester, NY, USA
| | - Madelaine Hack
- Department of Surgery, Oregon Health & Sciences University, Portland, OR, USA
| | - Tanya Shah
- Department of Medicine, University of Rochester School of Medicine, Rochester, NY, USA
| | - Joseph W Dooley
- Department of Anesthesiology and Perioperative Medicine, University of Rochester School of Medicine, Rochester, NY, USA
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16
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Todorov L, Kostova I. Recent Trends in the Development of Novel Metal-Based Antineoplastic Drugs. Molecules 2023; 28. [PMID: 36838947 DOI: 10.3390/molecules28041959] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/11/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Since the accidental discovery of the anticancer properties of cisplatin more than half a century ago, significant efforts by the broad scientific community have been and are currently being invested into the search for metal complexes with antitumor activity. Coordination compounds of transition metals such as platinum (Pt), ruthenium (Ru) and gold (Au) have proven their effectiveness as diagnostic and/or antiproliferative agents. In recent years, experimental work on the potential applications of elements including lanthanum (La) and the post-transition metal gallium (Ga) in the field of oncology has been gaining traction. The authors of the present review article aim to help the reader "catch up" with some of the latest developments in the vast subject of coordination compounds in oncology. Herewith is offered a review of the published scientific literature on anticancer coordination compounds of Pt, Ru, Au, Ga and La that has been released over the past three years with the hope readers find the following article informative and helpful.
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17
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Anyanwu VO, Friedrich HB, Mahomed AS, Singh S, Moyo T. Phase Transition of High-Surface-Area Glycol-Thermal Synthesized Lanthanum Manganite. Materials (Basel) 2023; 16:1274. [PMID: 36770280 PMCID: PMC9920577 DOI: 10.3390/ma16031274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/28/2022] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Cubic and rhombohedral phases of lanthanum manganite were synthesized in a high-pressure reactor. A mixture of La and Mn nitrates with ethylene glycol at a synthesis temperature of 200 °C and a calcination temperature of up to 1000 °C, resulted in a single-phase perovskite, LaMnO3 validated using X-ray diffraction. Significant changes in unit cell volumes from 58 to 353 Å3 were observed associated with structural transformation from the cubic to the rhombohedral phase. This was confirmed using structure calculations and resistivity measurements. Transmission electron microscopy analyses showed small particle sizes of approximately 19, 39, 45, and 90 nm (depending on calcination temperature), no agglomeration, and good crystallinity. The particle characteristics, high purity, and high surface area (up to 33.1 m2/g) of the material owed to the inherent PAAR reactor pressure, are suitable for important technological applications, that include the synthesis of perovskite oxides. Characteristics of the synthesized LaMnO3 at different calcination temperatures are compared, and first-principles calculations suggest a geometric optimization of the cubic and rhombohedral perovskite structures.
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Abstract
The disability rate of joint diseases can be reduced by the use of artificial joints, but joint loosening at a late state limits the lifespan and surgical efficacy of the joints. Wear particles can be recognized by macrophages and induce cells to produce reactive oxygen species (ROS) and inflammatory factors, causing persistent inflammation and decreased osteogenic activity, which ultimately leads to loosening of joint prostheses. Here, the platinum (Pt) nanozymes with excellent ROS scavenging and anti-inflammatory capabilities were encapsulated in zinc imidazolium zeolite framework-8 (ZIF-8), and then the osteogenic active element lanthanum (La) was introduced through ion exchange to finally construct a bimetallic metal-organic framework (Pt@ZIF-8@La). In vitro and in vivo experiments demonstrated that this multifunctional nanoplatform possessed the functions of efficient scavenging of ROS, immune regulation, and promotion of osteogenic differentiation. Meanwhile, the mechanism is explored that Pt@ZIF-8@La can also promote osteogenic mineralization by upregulating the ratio of the osteoprotegerin (OPG)/receptor activator of the NF-κB ligand (RANKL), which can achieve a synergistic therapeutic effect of immunomodulation and osteogenesis, thereby realizing the purpose of relieving aseptic osteolysis.
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Affiliation(s)
- Huajun Pan
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi330006, P. R. China
| | - Xinxin Miao
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi330006, P. R. China
| | - Jianjian Deng
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi330006, P. R. China
| | - Chongzhi Pan
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi330006, P. R. China
| | - Xigao Cheng
- Department of Orthopedics, the Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi330006, P. R. China
| | - Xiaolei Wang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi330088, P. R. China
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi330088, P. R. China
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Fila D, Kołodyńska D. Fixed-Bed Column Adsorption Studies: Comparison of Alginate-Based Adsorbents for La(III) Ions Recovery. Materials (Basel) 2023; 16:1058. [PMID: 36770065 PMCID: PMC9920093 DOI: 10.3390/ma16031058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/02/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
The paper investigated the adsorption of the packed-bed column with the alginate-based adsorbents (ALG-based adsorbents) such as alginate-biochar, alginate-clinoptilolite, alginate-lignin, and alginate-cellulose for La(III) ions' removal. Fixed-bed adsorption studies with various alginate-based adsorbents were carried out and compared to the La(III) ions adsorption. The columns were filled with ALG-based adsorbent beads of approximately 1.1 ± 0.005 mm spherical shapes. The effects of the inlet concentrations on the breakthrough curves were studied in terms of the adsorption performance of the ALG-based adsorbents. The experimental data were correlated with the Adams-Bohart, Yoon-Nelson, Thomas, and Wolborska models to determine the best operational parameters. Based on the comparison of R2 values, the Thomas and Yoon-Nelson models were found to be more suitable than the Adams-Bohart and Wolborska models. In the desorption study, the ALG-based adsorbents packed columns showed the maximum desorption of La(III) just after passing 100 cm3 of 1 mol/dm3 HCl. Overall, the results show that ALG-based adsorbents could be used for continuous recovery of La(III) ions from aqueous solutions and were not only cost-effective but also environmentally friendly.
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Xue Z, Chen Z, Wang Y, Sun W. Proteomic Analysis Reveals the Association between the Pathways of Glutathione and α-Linolenic Acid Metabolism and Lanthanum Accumulation in Tea Plants. Molecules 2023; 28. [PMID: 36770792 DOI: 10.3390/molecules28031124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Lanthanum can affect the growth and development of the tea plant. Tieguanyin (TGY) and Shuixian (SX) cultivars of Camellia sinensis were selected to explore the mechanism underlying the accumulation of lanthanum (tea plants' most accumulated rare earth element) through proteomics. Roots and fresh leaves of TGY and SX with low- and high-accumulation potential for lanthanum, respectively, were studied; 845 differentially expressed proteins (DEPs) were identified. Gene ontology analysis showed that DEPs were involved in redox processes and related to molecular functions. Kyoto Encyclopedia of Genes and Genomes metabolic pathway analysis showed that DEPs were associated with glutathione (GSH) and α-linolenic acid metabolism, plant pathogen interaction, and oxidative phosphorylation. Thirty-seven proteins in the GSH metabolism pathway showed significant differences, wherein 18 GSH S-transferases showed differential expression patterns in the root system. Compared with the control, expression ratios of GST (TEA004130.1) and GST (TEA032216.1) in TGY leaves were 6.84 and 4.06, respectively, after lanthanum treatment; these were significantly higher than those in SX leaves. The LOX2.1 (TEA011765.1) and LOX2.1 (TEA011776.1) expression ratios in the α-linolenic acid metabolic pathway were 2.44 and 6.43, respectively, in TGY roots, which were significantly higher than those in SX roots. The synthesis of specific substances induces lanthanum-associated defense responses in TGY, which is of great significance for plant yield stability.
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Wu JQ, Wu XY, Lu JM, Shi Q, Shao LX. Highly Active La(III)-Based Metal-Organic Framework as a Heterogeneous Lewis Acid Catalyst for Friedel-Crafts Alkylation. Chemistry 2022; 28:e202202441. [PMID: 36082763 DOI: 10.1002/chem.202202441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Indexed: 12/14/2022]
Abstract
In this study, a novel La(III)-based two-dimensional (2D) metal-organic framework, [La2/3 (qptca)1/2 ] (referred to as SLX-2), from LaCl3 and 1,1' : 4',1'' : 4'',1''' : 4''',1''''-quinquephenyl]-2,2'',2'''',5''-tetracarboxylic acid (H4 qptca) was synthesized by conventional solvothermal method and thoroughly characterized by using X-ray single-crystal diffraction, powder X-ray diffraction, and thermogravimetric analyses. The 2D SLX-2 features a unique lanthanum center exposed to the skeleton and was used as an efficient Lewis acid catalyst for the Friedel-Crafts alkylation of indole and pyrrole with β-nitrostyrene along with a wide substrate scope, giving the desired products in good-to-high yields under the optimal reaction conditions. Furthermore, the catalyst was used for twenty cycles, with nearly no effect on its activity, and the reaction was heterogeneous in nature. Moreover, compared to the previous hydrogen-bond-donating MOF catalysts for such alkylation reactions, SLX-2 showed an excellent stability toward harsh acidic and basic environment, and gave comparable catalytic activities.
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Affiliation(s)
- Jia-Qi Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Xin-Yuan Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Jian-Mei Lu
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Qian Shi
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Li-Xiong Shao
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province, 325035, People's Republic of China
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22
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Huang B, Cui J, Ran Y, Chen C, Li F, Zhang Y, Li Z, Xie E. Mechanism of macroalgae Gracilaria bailiniae responding to cadmium and lanthanum. Front Plant Sci 2022; 13:1076526. [PMID: 36531398 PMCID: PMC9756850 DOI: 10.3389/fpls.2022.1076526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Macroalgae can accumulate a wide array of metals, leading to their appliance as biomonitors of aquatic environments. With the rapid development of industrial and agricultural-based activities, Cd pollution in aquatic environments is considered an increasingly severe problem worldwide. Although La could alleviate the Cd stress in higher terrestrial plants, the response mechanisms of macroalgae to Cd and La are unknown. Along these lines, in this work, Cd significantly affected the growth, internal cellular structure, photosynthesis, pigment content, antioxidant enzyme activity, and lipid peroxidation level of G. bailiniae. However, the presence of La alleviated these adverse effects from Cd. Furthermore, the response mechanism of G. bailiniae to Cd was attributed to the self-antioxidant ability enhancement, membrane defense, and programmed-cellular regulation. However, the presence of La mediated the biosynthesis of both flavonoids and lipids, which inhibited the Cd accumulation, modulated algal stress signalling networks, renewed the impaired chlorophyll molecule, maintained the activity of the crucial enzyme, enhanced antioxidant ability, and maintained the stabilization of redox homeostasis, alleviating the adverse impact from Cd and improve the growth of G. bailiniae. The experimental results successfully demonstrate a new detoxicant to alleviate Cd stress, promoting a more comprehensive array of macroalgal applications.
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Affiliation(s)
- Bowen Huang
- Fishery College, Guangdong Ocean University, Zhanjiang, China
- Guangdong Laboratory of Marine Ecology Environment Monitoring and Warning, Zhanjiang, China
| | - Jianjun Cui
- Fishery College, Guangdong Ocean University, Zhanjiang, China
| | - Yu Ran
- Fishery College, Guangdong Ocean University, Zhanjiang, China
| | - Chunli Chen
- Fishery College, Guangdong Ocean University, Zhanjiang, China
| | - Feng Li
- Fishery College, Guangdong Ocean University, Zhanjiang, China
- Guangdong Laboratory of Marine Ecology Environment Monitoring and Warning, Zhanjiang, China
| | - Yulei Zhang
- Fishery College, Guangdong Ocean University, Zhanjiang, China
- Guangdong Laboratory of Marine Ecology Environment Monitoring and Warning, Zhanjiang, China
| | - Zailiang Li
- Fishery College, Guangdong Ocean University, Zhanjiang, China
| | - Enyi Xie
- Fishery College, Guangdong Ocean University, Zhanjiang, China
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Yang D, Sui H, Mao W, Wang Y, Yang D, Zhang L, Liu Z, Yong L, Song Y. Dietary Exposure Assessment of Rare Earth Elements in the Chinese Population. Int J Environ Res Public Health 2022; 19:15583. [PMID: 36497658 PMCID: PMC9738814 DOI: 10.3390/ijerph192315583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/16/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Rare earth elements (REEs) are widely found in foods. A high intake of REEs may have associations with adverse effects on human health. This study aimed to investigate the concentrations of REEs in foods in China and to assess the risk of dietary REEs exposure in the Chinese population. The mean concentrations of the total REEs in 27,457 food samples from 11 food categories ranged from 0.04 to 1.41 mg/kg. The daily mean dietary exposure of the total REEs was 1.62 μg/kg BW in the general Chinese population and ranged from 1.61 to 2.80 μg/kg BW in different sex-age groups. The high consumer exposure (95th percentile, P95) was 4.83 μg/kg BW, 9.38% of the temporary ADI (tADI) of REEs (51.5 μg/kg BW). None of the P95 exposure exceeded the tADI in all of the sub-groups. Lanthanum, cerium, and yttrium accounted for approximately 63% of the total exposure of the 16 REEs. The hazard index of 16 REEs was far below 1. Therefore, the health risk of dietary REEs exposure in the general Chinese population was low. No cumulative risk was found for the 16 REEs in China. The results indicate there was no need to stipulate the limits of REEs in foods.
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Affiliation(s)
| | | | | | | | | | | | | | - Ling Yong
- Correspondence: (L.Y.); (Y.S.); Tel.: +86-010-5216-5570 (L.Y.); +86-010-5216-5571 (Y.S.)
| | - Yan Song
- Correspondence: (L.Y.); (Y.S.); Tel.: +86-010-5216-5570 (L.Y.); +86-010-5216-5571 (Y.S.)
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24
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Mao N, Yang W, Chen D, Lu W, Zhang X, Chen S, Xu M, Pan B, Han L, Zhang X, Wang Z. Effect of Lanthanum Addition on Formation Behaviors of Inclusions in Q355B Weathering Steel. Materials (Basel) 2022; 15:7952. [PMID: 36431436 PMCID: PMC9695262 DOI: 10.3390/ma15227952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
The effect of lanthanum addition on the formation behaviors of inclusions in Q355B weathering steel was investigated by laboratory experiments and thermodynamic calculations. The results demonstrate that the main inclusions in weathering steel without La addition are large-sized irregular Al2O3 and MnS, with an average size of about 5.35 μm. As La content increases from 0.0075 to 0.0184 wt.%, the dominant inclusions transform from MnS, LaAlO3, and Al2O3-LaAlO3 into MnS, La2O3, and LaAlO3-La2O3. Meanwhile, the average size of inclusions significantly decreases from 3.4 to 2.48 μm and the distribution is more dispersive. When the La content increases to 0.0425 wt.%, the original MnS and Al2O3 inclusions are completely modified into La2O2S and La2O3 but the inclusions demonstrate serious agglomeration and growth. The thermodynamic calculations indicate that Al2O3 and various lanthanum-containing inclusions are formed in the liquid phase. As the La content in molten steel increases from 0 to 0.0425 wt.%, the Al2O3 inclusion is inclined to be modified into lanthanum oxide and lanthanum oxysulfide and the modification process is Al2O3 → LaAlO3 → La2O3 → La2O2S, which is very consistent with the experimental observations.
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Affiliation(s)
- Ning Mao
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Wensheng Yang
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Dehong Chen
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Wenli Lu
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Xiaowei Zhang
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Shiying Chen
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Minglei Xu
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
- GRIREM Hi-Tech Co., Ltd., Langfang 065201, China
| | - Bo Pan
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
- GRIREM Hi-Tech Co., Ltd., Langfang 065201, China
| | - Liguo Han
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Xiaoqiang Zhang
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
| | - Zhiqiang Wang
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing 100088, China
- GRIREM Hi-Tech Co., Ltd., Langfang 065201, China
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Guzman M, Tian W, Walker C, Herrera JE. Copper oxide nanoparticles doped with lanthanum, magnesium and manganese: optical and structural characterization. R Soc Open Sci 2022; 9:220485. [PMID: 36405645 PMCID: PMC9667144 DOI: 10.1098/rsos.220485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Copper oxide (Cu2O) is a promising semiconductor for photovoltaic and photocatalytic applications since this material has a high optical absorption coefficient and lower band gap (2.17 eV). Doped lanthanum (La), magnesium (Mg) and manganese (Mn) Cu2O nanoparticles (Cu2O Nps) were prepared by a displacement reaction. The doped and undoped Cu2O Nps were characterized with scanning electron microscopy-energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), transmission electron microscopy (TEM) and ultraviolet-visible spectroscopy. The EDS results confirm the presence of La, Mg and Mn in the Cu2O Nps. The XRD results confirm the formation a single cubic phase of Cu2O with a cuprite structure. TEM images confirm the formation of Nps with mean diameters between 12.0 ± 6.1 and 30.8 ± 11.0 nm. Doped and undoped Nps present a narrow band gap (2.40 eV), blue shifted with respect to bulk Cu2O.
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Affiliation(s)
- Maribel Guzman
- Department of Engineering, Pontifical Catholic University of Peru, Avenida Universitaria 1801, Lima 15088, Peru
| | - Wei Tian
- Department of Chemical and Biochemical Engineering, Western University, London, ON, N6A 5B9, Canada
| | - Chantal Walker
- Department of Chemical and Biochemical Engineering, Western University, London, ON, N6A 5B9, Canada
| | - Jose E. Herrera
- Department of Chemical and Biochemical Engineering, Western University, London, ON, N6A 5B9, Canada
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Nuhma MJ, Alias H, Tahir M, Jazie AA. Catalytic Deoxygenation of Hydrolyzed Oil of Chlorella Vulgaris Microalgae over Lanthanum-Embedded HZSM-5 Zeolite Catalyst to Produce Bio-Fuels. Molecules 2022; 27:molecules27196527. [PMID: 36235064 PMCID: PMC9570545 DOI: 10.3390/molecules27196527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/17/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Microalgae is one of the most important sources of green hydrocarbons because it contains a high percentage of lipids and is likely to reduce reliance on fossil fuels. Several zeolite-based catalysts have a short lifetime due to coke-formation deactivation. In this study, a lanthanum-modified HZSM-5 zeolite catalyst for the conversion of crude oil into non-oxygenated compounds (hydrocarbons) and oxygenated compounds has been investigated. The crude oil of Chlorella Vulgaris microalgae was extracted using Soxhlet and converted into hydrolyzed oil (HO) through a transesterification reaction. The experiments were conducted in a batch reactor (300 °C, 1000 rpm, 7 bar of N2, the catalyst to the algal HO ratio of 15% (wt.%) and 6 h). The results were organized into three groups: product yield, chemical composition, and carbon number distribution. The liquid products were investigated, including their elemental composition, higher heating value (HHV), atomic ratios of O/C and H/C, and degree of deoxygenation (DOD%). The loading of lanthanum into HZSM-5 zeolite with different loading percentages enhanced the acid sites needed for the algal HO conversion. Among all the synthesized catalysts, 10%La/HZSM-5 produced the highest conversion of the algal HO, the highest yield of hydrocarbons, the highest HHV, and the highest DOD%; those were 100%, 36.88%, 34.16 MJ/kg, and 56.11%, respectively. The enhanced catalytic conversion was due to the presence of lanthanum, which alters the active sites for the desired reactions of catalytic deoxygenation. The main effect of the modification of the parent HZSM-5 zeolite with lanthanum led to adjusting the acidic sites needed to increase the conversion (%) of the algal HO in the catalytic deoxygenation process and thus increase the hydrocarbon yield (%), which in turn led to an increase in the HHV and DOD%. The proposed La-based zeolite composite is promising for different energy applications due to its unique benefits compared to other expensive and less-stable catalysts.
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Affiliation(s)
- Mustafa Jawad Nuhma
- Department of Chemical Engineering, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
- Chemical Engineering Department, College of Engineering, University of Al-Qadisiyah, Al-Diwaniyah City 999048, Iraq
| | - Hajar Alias
- Department of Chemical Engineering, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
- Correspondence: (H.A.); (M.T.); Tel.: +60-19-0385-5571 (H.A.); +97-15-0996-1678 (M.T.)
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, United Arab Emirates University (UAEU), Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (H.A.); (M.T.); Tel.: +60-19-0385-5571 (H.A.); +97-15-0996-1678 (M.T.)
| | - Ali A. Jazie
- Chemical Engineering Department, College of Engineering, University of Al-Qadisiyah, Al-Diwaniyah City 999048, Iraq
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Yin XJ, Song XB, Ding CM, Feng YF, Yang B, He SY, Xue LH. [Development of Zeolite Loaded Mg-La-Fe Ternary (hydr) oxides for Treatment of Low Concentration Phosphate Wastewater]. Huan Jing Ke Xue 2022; 43:3699-3707. [PMID: 35791553 DOI: 10.13227/j.hjkx.202110202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A novel Mg-La-Fe ternary (hydr)oxide magnetic zeolite adsorbent (MLFZ) was prepared using the hydrothermal method and employed for effective phosphate removal in this study. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) indicated that the MLFZ presented an amorphous surface with Mg, Fe, and La dispersed on the surface of the zeolite. The isothermal adsorption and kinetics results showed that the adsorption behavior of the MLFZ was consistent with that of the Langmuir isothermal model and quasi-second-order kinetics model. A relatively fast adsorption of phosphate with a short equilibrium time of 30 min was observed in the kinetics experiment, and the maximum adsorption capacity of the MLFZ was 13.46 mg·g-1 in the equilibrium adsorption isotherm study. The MLFZ showed effective adsorption performance over a wide pH range from 3.0 to 9.0. Moreover, the coexisting ions had an insignificant effect on phosphate adsorption. The MLFZ could easily be recovered using a magnet. After five adsorption-desorption cycles, the phosphate removal efficiency was maintained at approximately 90%. The FTIR, XPS, and Zeta potential analysis confirmed that the adsorption mechanisms were attributed to the surface deposition, electrostatic adsorption, and the inner complex formation by ligand exchange between lanthanum and phosphate. Furthermore, the MLFZ demonstrated high efficiency in scavenging phosphate from a natural pond (phosphate concentration decreased from 0.86 mg·L-1 to 0.013 mg·L-1), indicating that the MLFZ was an ideal material for phosphate management and treatment.
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Affiliation(s)
- Xue-Jie Yin
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiao-Bao Song
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chen-Man Ding
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yan-Fang Feng
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Bei Yang
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Shi-Ying He
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Li-Hong Xue
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
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28
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Terlingen B, Oord R, Ahr M, Hutter EM, van Lare C, Weckhuysen BM. Favoring the Methane Oxychlorination Reaction over EuOCl by Synergistic Effects with Lanthanum. ACS Catal 2022; 12:5698-5710. [PMID: 35557710 PMCID: PMC9087184 DOI: 10.1021/acscatal.2c00777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/18/2022] [Indexed: 11/30/2022]
Abstract
The direct conversion of CH4 into fuels and chemicals produces less waste, requires smaller capital investments, and has improved energy efficiency compared to multistep processes. While the methane oxychlorination (MOC) reaction has been given little attention, it offers the potential to achieve high CH4 conversion levels at high selectivities. In a continuing effort to design commercially interesting MOC catalysts, we have improved the catalyst design of EuOCl by the partial replacement of Eu3+ by La3+. A set of catalytic solid solutions of La3+ and Eu3+ (i.e., La x Eu1-x OCl, where x = 0, 0.25, 0.50, 0.75, and 1) were synthesized and tested in the MOC reaction. The La3+-Eu3+ catalysts exhibit an increased CH3Cl selectivity (i.e., 54-66 vs 41-52%), a lower CH2Cl2 selectivity (i.e., 8-24 vs 18-34%), and a comparable CO selectivity (i.e., 11-28 vs 14-28%) compared to EuOCl under the same reaction conditions and varying HCl concentrations in the feed. The La3+-Eu3+ catalysts possessed a higher CH4 conversion rate than when the individual activities of LaOCl and EuOCl are summed with a similar La3+/Eu3+ ratio (i.e., the linear combination). In the solid solution, La3+ is readily chlorinated and acts as a chlorine buffer that can transfer chlorine to the active Eu3+ phase, thereby enhancing the activity. The improved catalyst design enhances the CH3Cl yield and selectivity and reduces the catalyst cost and the separation cost of the unreacted HCl. These results showcase that, by matching intrinsic material properties, catalyst design can be altered to overcome reaction bottlenecks.
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Affiliation(s)
- Bas Terlingen
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Ramon Oord
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Mathieu Ahr
- Nobian, Zutphenseweg
10, 7418 AJ Deventer, The Netherlands
| | - Eline M. Hutter
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Coert van Lare
- Nobian, Zutphenseweg
10, 7418 AJ Deventer, The Netherlands
| | - Bert M. Weckhuysen
- Inorganic
Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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Chen D, Yu C, Wang Z, Zhang X, Lu W, Zhang D. Simulation of Lanthanum Purification Using a Finite Element Method. Materials (Basel) 2022; 15:ma15093183. [PMID: 35591517 PMCID: PMC9102525 DOI: 10.3390/ma15093183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 12/10/2022]
Abstract
The zone refining technology is considered to be one of the most effective means of purifying lanthanum. However, it is tough to obtain the temperature distribution of the molten region through experimental methods. In this study, finite element analysis was used to establish the zone refining simulation model, and the impurity distribution of lanthanum after purification was investigated experimentally. Good agreement between the simulated and experimental results was obtained. The effects of the current and the frequency on the temperature distribution and the width of the region were studied using the simulation model. Through the zone refining experiment, the impurity distributions under different widths of molten region were revealed. Finally, the influence of molten region width on the limiting distribution was calculated by solving the limiting distribution equation.
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Affiliation(s)
- Dehong Chen
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Chuang Yu
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- Correspondence: ; Tel.: +86-18911705374
| | - Zhiqiang Wang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Xiaowei Zhang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Wenli Lu
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Dongwei Zhang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
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30
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Dridi N, Ferreira R, Bouslimi H, Brito P, Martins-Dias S, Caçador I, Sleimi N. Assessment of Tolerance to Lanthanum and Cerium in Helianthus Annuus Plant: Effect on Growth, Mineral Nutrition, and Secondary Metabolism. Plants (Basel) 2022; 11:plants11070988. [PMID: 35406967 PMCID: PMC9002919 DOI: 10.3390/plants11070988] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 05/31/2023]
Abstract
Rare earth elements (REEs) present a group of nonessential metals for the growth and development of plants. At high concentrations, they can induce internal stress and disturb the physiological and biochemical mechanisms in plants. The potential uptake of lanthanum (La) and cerium (Ce) by the horticultural plant Helianthus annuus and the effect of these elements on its growth, its absorption of macroelements, and the contents of phenolic compounds and flavonoids were assessed. The plants were exposed to 0, 1, 2.5, 5, and 10 µM of La and Ce for 14 days. The results showed a remarkable accumulation of the two REEs, especially in the roots, which was found to be positively correlated with the total phenolic compound and flavonoid content in the plant shoots and roots. The plant's growth parameter patterns (such as dry weight and water content); the levels of potassium, calcium, and magnesium; and the tolerance index varied with the concentrations of the two studied elements. According to the tolerance index values, H. annuus had more affinity to La than to Ce. Although these metals were accumulated in H. annuus tissues, this Asteraceae plant cannot be considered as a hyperaccumulator species of these two REEs, since the obtained REE content in the plant's upper parts was less than 1000 mg·Kg-1 DW.
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Affiliation(s)
- Nesrine Dridi
- LR. RME-Resources, Materials and Ecosystems, Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia; (N.D.); (H.B.)
| | - Renata Ferreira
- CERENA, Centro de Recursos Naturais e Ambiente, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Houda Bouslimi
- LR. RME-Resources, Materials and Ecosystems, Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia; (N.D.); (H.B.)
| | - Pedro Brito
- IPMA, Division of Oceanography and Marine Environment, Instituto Português do Mar e da Atmosfera, 1495-165 Algés, Portugal;
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, 4450-208 Matosinhos, Portugal
| | - Susete Martins-Dias
- CERENA, Centro de Recursos Naturais e Ambiente, Departamento de Bioengenharia, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Isabel Caçador
- MARE-FCUL, Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal;
| | - Noomene Sleimi
- LR. RME-Resources, Materials and Ecosystems, Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia; (N.D.); (H.B.)
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31
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Tolkou AK, Trikalioti S, Makrogianni O, Xanthopoulou M, Deliyanni EA, Katsoyiannis IA, Kyzas GZ. Chromium(VI) Removal from Water by Lanthanum Hybrid Modified Activated Carbon Produced from Coconut Shells. Nanomaterials (Basel) 2022; 12:1067. [PMID: 35407186 PMCID: PMC9000820 DOI: 10.3390/nano12071067] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/11/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022]
Abstract
Cr(VI) is considered to be the most hazardous and toxic oxidation state of chromium and hence the development of effective removal technologies, able to provide water with Cr(VI) below the drinking water limits (US EPA 100 μg/L, European Commission 50 μg/L, which will be reduced to 25 by 2036) is a very important issue in water treatment. This study aimed at examining the performance of activated carbon produced from coconut shells, modified by lanthanum chloride, for Cr(VI) removal from waters. The structure of the formed material (COC-AC-La) was characterized by the application of BET, FTIR and SEM techniques. The effect of the adsorbent's dosage, pH value, contact time, initial Cr(VI) concentration and water matrix was examined with respect to Cr(VI) removal. The results indicated that the maximum Cr(VI) removal was observed at pH 5; 4 h contact time and 0.2 g/L of adsorbent's dosage was adequate to reduce Cr(VI) from 100 μg/L to below 25 μg/L. Freundlich isotherm and pseudo-second order kinetic models fitted the experimental data sufficiently. The maximum adsorption capacity achieved was 6.3 μg/g at pH 5. At this pH value, the removal percentage of Cr(VI) reached 95% for an initial Cr(VI) concertation of 30 μg/L. At pH 7 the corresponding efficiency was roughly 60%, resulting in residual Cr(VI) concentrations below the anticipated drinking water limit of 25 μg/L of total chromium, when the initial Cr(VI) concentration was 50 μg/L. Consecutive adsorption and regeneration studies were conducted using 0.01 M of NaOH as an eluent to evaluate the reusability of the adsorbents, Results showed 20% decrease of adsorption capacity after 5 regeneration cycles of operation.
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Affiliation(s)
- Athanasia K. Tolkou
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.T.); (M.X.); (E.A.D.); (I.A.K.)
- Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
| | - Soultana Trikalioti
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.T.); (M.X.); (E.A.D.); (I.A.K.)
| | - Olina Makrogianni
- Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
| | - Maria Xanthopoulou
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.T.); (M.X.); (E.A.D.); (I.A.K.)
| | - Eleni A. Deliyanni
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.T.); (M.X.); (E.A.D.); (I.A.K.)
| | - Ioannis A. Katsoyiannis
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.T.); (M.X.); (E.A.D.); (I.A.K.)
| | - George Z. Kyzas
- Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
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Chen L, Liang T, Zhang Z, Song H, Liu Z, Jiang Q, Chen Y, Duan D. Phase transitions and properties of lanthanum under high pressures. J Phys Condens Matter 2022; 34:204005. [PMID: 35172288 DOI: 10.1088/1361-648x/ac55d7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Lanthanum (La), the first member of the lanthanide elements, recently aroused interests due to the discovery of high-Tcsuperconductor LaH10under high pressures and its unique superconducting properties. Here, we study the phase transitions, superconductivity and mechanical properties of metallic La under high pressures by first-principle calculations. The known face-centered cubic (fcc) phase with space groupFm3¯mstill exists above 100 GPa. And it transforms into an unprecedented body-centered tetragonal (bct) phase with space groupI4/mmmabove 180 GPa, which expands the high pressure phase transition sequence. Further calculations show that the superconducting transition temperatureTcof fcc phase decreases with increasing pressure with the rate of -0.13 K GPa-1, in good agreement with the experimental results. For the bct phase, the estimated superconducting transition temperature is very low withTcof 0.7 K at 200 GPa. The calculations of mechanical properties show that both of fcc and bct phases are compressible and brittle.
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Affiliation(s)
- Ling Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Tianxiao Liang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Zihan Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Hao Song
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Zhengtao Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Qiwen Jiang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Yue Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Defang Duan
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
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Stepanov SI, Hoa NTY, Boyarintseva EV, Boyarintsev AV, Kostikova GV, Tsivadze AY. Separation of Rare-Earth Elements from Nitrate Solutions by Solvent Extraction Using Mixtures of Methyltri-n-octylammonium Nitrate and Tri-n-butyl Phosphate. Molecules 2022; 27:557. [PMID: 35056872 DOI: 10.3390/molecules27020557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 11/17/2022]
Abstract
The article presents data on the solvent extraction separation of rare-earth elements (REEs), such as La(III), Ce(III), Pr(III), and Nd(III), using synergic mixtures of methyltrioctylammonium nitrate (TOMANO3) with tri-n-butyl phosphate (TBP) from weakly acidic nitrate solutions. Specifically, experimental results on separation of REEs, for the pair Ce(III)/Pr(III) for quaternary mixtures of REEs (La(III), Ce(III), Pr(III), Nd(III)) and for the pair La(III)/Pr(III) for solutions containing La(III), Pr(III), and Nd(III), are presented. It was shown that effective separation for the pair Ce(III)/Pr(III) from a solution containing 219 g Ce(III)/L, 106 g La(III)/L, 20 g Pr(III)/L, 55 g Nd(III)/L, and 0.1 mol/L HNO3, was achieved using 56 steps of a multistage, counter-current solvent extraction cascade with scrubbing, at an organic-to-aqueous phase volume ratio (O/A) equal to 2/1 on the extraction section and O/A equal to 4/1 on the scrubbing section, using 3.3 mol/L solutions of the mixture TOMANO3-TBP with molar ratio 0.15:0.85 in dodecane. Separation for the pair La(III)/Pr(III) could be achieved using a solvent extraction cascade with scrubbing in 32 steps at O/A equal to 2/1 on the extraction section and O/A equal to 2.8/1 on the scrubbing section of the solvent extraction cascade from a solution containing 258 g La(III)/L, 58 g Pr(III)/L, 141 g Nd(III)/L, and 0.1 mol/L HNO3 with 3.0 mol/L solution of the mixture TOMANO3-TBP with molar ratio 0.2:0.8 in dodecane.
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Du A, Lattanzi L, Jarfors AWE, Zheng J, Wang K, Yu G. On the Hardness and Elastic Modulus of Phases in SiC-Reinforced Al Composite: Role of La and Ce Addition. Materials (Basel) 2021; 14:ma14216287. [PMID: 34771812 PMCID: PMC8584849 DOI: 10.3390/ma14216287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/26/2022]
Abstract
The use of silicon carbide particles (SiCp) as reinforcement in aluminium (Al)-based composites (Al/SiCp) can offer high hardness and high stiffness. The rare-earth elements like lanthanum (La) and cerium (Ce) and transition metals like nickel (Ni) and copper (Cu) were added into the matrix to form intermetallic phases; this is one way to improve the mechanical property of the composite at elevated temperatures. The α-Al15(Fe,Mn)3Si2, Al20(La,Ce)Ti2, and Al11(La,Ce)3, π-Al8FeMg3Si6 phases are formed. Nanoindentation was employed to measure the hardness and elastic modulus of the phases formed in the composite alloys. The rule of mixture was used to predict the modulus of the matrix alloys. The Halpin–Tsai model was applied to calculate the elastic modulus of the particle-reinforced composites. The transition metals (Ni and Cu) and rare-earth elements (La and Ce) determined a 5–15% increase of the elastic modulus of the matrix alloy. The SiC particles increased the elastic modulus of the matrix alloy by 10–15% in composite materials.
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Affiliation(s)
- Andong Du
- Institute of Semi-Solid Metal Technology, China Academy of Machinery Sciences and Technology (Jiangle), No. 22 Huancheng East Road, Jiangle, Sanming 353300, China; (A.D.); (J.Z.); (G.Y.)
- Department of Materials Processing and Control Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Xueyuan Road No. 30, Beijing 100083, China
| | - Lucia Lattanzi
- Department of Materials and Manufacturing, School of Engineering, Jönköping University, 551 11 Jönköping, Sweden;
| | - Anders Wollmar Eric Jarfors
- Institute of Semi-Solid Metal Technology, China Academy of Machinery Sciences and Technology (Jiangle), No. 22 Huancheng East Road, Jiangle, Sanming 353300, China; (A.D.); (J.Z.); (G.Y.)
- Department of Materials and Manufacturing, School of Engineering, Jönköping University, 551 11 Jönköping, Sweden;
- Correspondence: (A.W.E.J.); (K.W.)
| | - Jinchuan Zheng
- Institute of Semi-Solid Metal Technology, China Academy of Machinery Sciences and Technology (Jiangle), No. 22 Huancheng East Road, Jiangle, Sanming 353300, China; (A.D.); (J.Z.); (G.Y.)
| | - Kaikun Wang
- Department of Materials Processing and Control Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Xueyuan Road No. 30, Beijing 100083, China
- Correspondence: (A.W.E.J.); (K.W.)
| | - Gegang Yu
- Institute of Semi-Solid Metal Technology, China Academy of Machinery Sciences and Technology (Jiangle), No. 22 Huancheng East Road, Jiangle, Sanming 353300, China; (A.D.); (J.Z.); (G.Y.)
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Erdem U, Turkoz MB. La 3+ and F - dual-doped multifunctional hydroxyapatite nanoparticles: Synthesis and characterization. Microsc Res Tech 2021; 84:3211-3220. [PMID: 34313373 DOI: 10.1002/jemt.23880] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/06/2021] [Accepted: 07/11/2021] [Indexed: 01/05/2023]
Abstract
Hydroxyapatite (HA) co-doped with La3+ and F- ions were synthesized by the precipitation method and sintered at 1,100°C for 1 hr. Samples were characterized by the standard experimental methods including the density, X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscopy (SEM) to investigate their microstructure, phase formation, and bonding characteristics in detail. Moreover, the materials produced were identified using the microhardness tests. It was observed that in the most of materials, the hydroxyapatite was found to be the main phase with a minor amount of β-tricalcium phosphate (β-TCP). Furthermore, the presence of fluoride and small amount of β-TCP was verified with all the characteristic FTIR bands of hydroxyapatite for the majority of samples studied. The result in SEM evaluation is that the produced HA powders have less deformed, uniformly distributed, and regularly shaped particles. Here, the material density has changed towards a less dense state with the increasing rate of La doping, but statistically significant difference was not obtained (p, .1942 > .05) with increase of the F doping. A significant difference was obtained the microhardness values between La3+ and F- ions co-doped HA materials and pure HA (p [.0053] < .05). Accordingly, this study confirmed that since the La3+ and F- ions can potentially increase the efficacy of HA. According to the spectral, mechanical, and microstructure analysis result, this material can be as a good candidate product for use as an occluding material for dental application.
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Affiliation(s)
- Umit Erdem
- Scientific and Technical Research Center, Kirikkale University, Kirikkale, Turkey
| | - Mustafa B Turkoz
- Faculty of Engineering, Electric and Electronics Engineering, Karabuk University, Karabuk, Turkey
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Todorov L, Saso L, Benarous K, Traykova M, Linani A, Kostova I. Synthesis, Structure and Impact of 5-Aminoorotic Acid and Its Complexes with Lanthanum(III) and Gallium(III) on the Activity of Xanthine Oxidase. Molecules 2021; 26:4503. [PMID: 34361656 PMCID: PMC8348579 DOI: 10.3390/molecules26154503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 11/17/2022] Open
Abstract
The superoxide radical ion is involved in numerous physiological processes, associated with both health and pathology. Its participation in cancer onset and progression is well documented. Lanthanum(III) and gallium(III) are cations that are known to possess anticancer properties. Their coordination complexes are being investigated by the scientific community in the search for novel oncological disease remedies. Their complexes with 5-aminoorotic acid suppress superoxide, derived enzymatically from xanthine/xanthine oxidase (X/XO). It seems that they, to differing extents, impact the enzyme, or the substrate, or both. The present study closely examines their chemical structure by way of modern methods-IR, Raman, and 1H NMR spectroscopy. Their superoxide-scavenging behavior in the presence of a non-enzymatic source (potassium superoxide) is compared to that in the presence of an enzymatic source (X/XO). Enzymatic activity of XO, defined in terms of the production of uric acid, seems to be impacted by both complexes and the pure ligand in a concentration-dependent manner. In order to better relate the compounds' chemical characteristics to XO inhibition, they were docked in silico to XO. A molecular docking assay provided further proof that 5-aminoorotic acid and its complexes with lanthanum(III) and gallium(III) very probably suppress superoxide production via XO inhibition.
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Affiliation(s)
- Lozan Todorov
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria;
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Faculty of Pharmacy and Medicine, Sapienza University, 00185 Rome, Italy;
| | - Khedidja Benarous
- Laboratoire des Sciences Fondamentales, Université Amar Telidji, Laghouat 03000, Algeria; (K.B.); (A.L.)
| | - Maria Traykova
- Department of Physics and Biophysics, Faculty of Medicine, Medical University, 1431 Sofia, Bulgaria;
| | - Abderahmane Linani
- Laboratoire des Sciences Fondamentales, Université Amar Telidji, Laghouat 03000, Algeria; (K.B.); (A.L.)
| | - Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1000 Sofia, Bulgaria;
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Yang H, Xiong Z, Xu Z, Liu R. Interactive Effects of Lanthanum and Calcium on Cadmium Accumulation in Wheat with Special Reference to TaNramp5 Expression Regulated by Calmodulin. J Agric Food Chem 2021; 69:6870-6878. [PMID: 34101455 DOI: 10.1021/acs.jafc.1c00365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lanthanum (La), calcium (Ca), and cadmium (Cd) have similar physical and chemical properties because of their similar ionic radius. Although the interactions between La, Ca, and Cd have been frequently reported in plants, few studies have investigated the interactive effects of La and Ca on the growth and Cd accumulation in plants. Therefore, we investigated the interactive effects of La and Ca on the growth and Cd accumulation in wheat under Cd exposure by a hydroponic experiment. The results indicated that wheat growth was significantly affected by La-Cd and La-Ca interactions. The accumulation of Cd in wheat was significantly affected by La-Ca and La-Cd interactions and La-Ca-Cd interplay. Correlation analysis indicated that Ca deficiency stimulated La to promote wheat growth and mitigate Cd toxicity. Simultaneously, a low Ca supply stimulated La to decrease Cd accumulation in wheat and induce TaNramp5 expression. In addition, Cd accumulation in wheat was significantly affected by the W7-La interaction and W7-La-Ca interplay. All of the results suggested that La, Ca, and Cd probably share the same binding sites in calmodulin (TaCaM) and La could affect Cd accumulation in wheat by interacting with TaCaM and then downregulating the expression of TaNramp5.
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Affiliation(s)
- Hua Yang
- School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang, Guizhou 550025, People's Republic of China
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
- State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang, Guizhou 550001, People's Republic of China
| | - Zhiting Xiong
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
| | - Zhongrui Xu
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
| | - Rongxiang Liu
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
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Chu M, Sun Z, Fan Z, Yu D, Mao Y, Guo Y. Bi-directional regulation functions of lanthanum-substituted layered double hydroxide nanohybrid scaffolds via activating osteogenesis and inhibiting osteoclastogenesis for osteoporotic bone regeneration. Am J Cancer Res 2021; 11:6717-6734. [PMID: 34093849 PMCID: PMC8171081 DOI: 10.7150/thno.56607] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 04/15/2021] [Indexed: 12/13/2022] Open
Abstract
Rationale: Osteoporotic patients suffer symptoms of excessive osteoclastogenesis and impaired osteogenesis, resulting in a great challenge to treat osteoporosis-related bone defects. Based on the positive effect of rare earth elements on bone metabolism and bone regeneration, we try to prove the hypothesis that the La3+ dopants in lanthanum-substituted MgAl layered double hydroxide (La-LDH) nanohybrid scaffolds simultaneously activate osteogenesis and inhibit osteoclastogenesis. Methods: A freeze-drying technology was employed to construct La-LDH nanohybrid scaffolds. The in vitro osteogenic and anti-osteoclastogenic activities of La-LDH nanohybrid scaffolds were evaluated by using ovariectomized rat bone marrow stromal cells (rBMSCs-OVX) and bone marrow-derived macrophages (BMMs) as cell models. The in vivo bone regeneration ability of the scaffolds was investigated by using critical-size calvarial bone defect model of OVX rats. Results: La-LDH nanohybrid scaffolds exhibited three-dimensional macroporous structure, and La-LDH nanoplates arranged perpendicularly on chitosan organic matrix. The La3+ dopants in the scaffolds promote proliferation and osteogenic differentiation of rBMSCs-OVX by activating Wnt/β-catenin pathway, leading to high expression of ALP, Runx-2, COL-1 and OCN genes. Moreover, La-LDH scaffolds significantly suppressed RANKL-induced osteoclastogenesis by inhibiting NF-κB signaling pathway. As compared with the scaffolds without La3+ dopants, La-LDH scaffolds provided more favourable microenvironment to induce new bone in-growth along macroporous channels. Conclusion: La-LDH nanohybrid scaffolds possessed the bi-directional regulation functions on osteogenesis and osteoclastogenesis for osteoporotic bone regeneration. The modification of La3+ dopants in bone scaffolds provides a novel strategy for osteoporosis-related bone defect healing.
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Trofimova OY, Maleeva AV, Ershova IV, Cherkasov AV, Fukin GK, Aysin RR, Kovalenko KA, Piskunov AV. Heteroleptic La III Anilate/Dicarboxylate Based Neutral 3D-Coordination Polymers. Molecules 2021; 26:2486. [PMID: 33923226 PMCID: PMC8123117 DOI: 10.3390/molecules26092486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/22/2021] [Accepted: 04/22/2021] [Indexed: 11/30/2022] Open
Abstract
Three new 3D metal-organic frameworks of lanthanum based on mixed anionic ligands, [(La2(pQ)2(BDC)4)·4DMF]n, [(La2(pQ)2(DHBDC)4)·4DMF]n, [(La2(CA)2(BDC)4)·4DMF]n (pQ-dianion of 2,5-dihydroxy-3,6-di-tert-butyl-para-quinone, CA-dianion of chloranilic acid, BDC-1,4-benzenedicarboxylate, DHBDC-2,5-dihydroxy-1,4-benzenedicarboxylate and DMF-N,N'-dimethylformamide), were synthesized using solvothermal methodology. Coordination polymers demonstrate the rare xah or 4,6T187 topology of a 3D framework. The homoleptic 2D-coordination polymer [(La2(pQ)3)·4DMF]n was obtained as a by-product in the course of synthetic procedure optimization. The thermal stability, spectral characteristics and porosity of coordination polymers were investigated.
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Affiliation(s)
- Olesya Y. Trofimova
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
| | - Arina V. Maleeva
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
| | - Irina V. Ershova
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
| | - Rinat R. Aysin
- A. N. Nesmeyanov Institute of Organometallic Chemistry of the Russian Academy of Sciences, Vavilova Str., 28, 119991 Moscow, Russia;
| | - Konstantin A. Kovalenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Acad. Lavrentiev Ave., 3, 630090 Novosibirsk, Russia;
| | - Alexandr V. Piskunov
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinin Str., 49, 603137 Nizhny Novgorod, Russia; (O.Y.T.); (A.V.M.); (I.V.E.); (A.V.C.); (G.K.F.)
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Kong D, Kusrini E, Wilson LD. Binary Pectin-Chitosan Composites for the Uptake of Lanthanum and Yttrium Species in Aqueous Media. Micromachines (Basel) 2021; 12:478. [PMID: 33922115 DOI: 10.3390/mi12050478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/10/2021] [Accepted: 04/19/2021] [Indexed: 11/17/2022]
Abstract
Rare-earth elements such as lanthanum and yttrium have wide utility in high-tech applications such as permanent magnets and batteries. The use of biopolymers and their composites as adsorbents for La (III) and Y (III) ions were investigated as a means to increase the uptake capacity. Previous work has revealed that composite materials with covalent frameworks that contain biopolymers such as pectin and chitosan have secondary adsorption sites for enhanced adsorption. Herein, the maximum adsorption capacity of a 5:1 Pectin-Chitosan composite with La (III) and Y (III) was 22 mg/g and 23 mg/g, respectively. Pectin-Chitosan composites of variable composition were characterized by complementary methods: spectroscopy (FTIR, 13C solids NMR), TGA, and zeta potential. This work contributes to the design of covalent Pectin-Chitosan biopolymer frameworks for the controlled removal of La (III) and Y (III) from aqueous media.
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Martínez J, de la Cruz-Martínez F, Martínez de Sarasa Buchaca M, Fernández-Baeza J, Sánchez-Barba LF, North M, Castro-Osma JA, Lara-Sánchez A. Efficient Synthesis of Cyclic Carbonates from Unsaturated Acids and Carbon Dioxide and their Application in the Synthesis of Biobased Polyurethanes. Chempluschem 2021; 86:460-468. [PMID: 33704907 DOI: 10.1002/cplu.202100079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/01/2021] [Indexed: 11/05/2022]
Abstract
Bio-derived furan- and diacid-derived cyclic carbonates have been synthesized in high yields from terminal epoxides and CO2 . Furthermore, four highly substituted terpene-derived cyclic carbonates were isolated in good yields with excellent diastereoselectivity in some cases. Eleven new cyclic carbonates derived from 10-undecenoic acid under mild reaction conditions were prepared, providing the corresponding carbonate products in excellent yields. The catalyst system also performed the conversion of an epoxidized fatty acid n-pentyl ester into a cyclic carbonate under relatively mild reaction conditions (80 °C, 20 bar, 24 h). This bis(cyclic carbonate) was obtained in high yields and with different cis/trans ratios depending on the co-catalyst used. An allyl alcohol by-product was only observed as a minor product when bis(triphenylphosphine)iminium chloride was used as co-catalyst. Finally, two cyclic carbonates were used as building blocks for the preparation of non-isocyanate poly(hydroxy)urethanes by reaction with 1,4-diaminobutane.
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Affiliation(s)
- Javier Martínez
- Instituto de Ciencias Químicas, Facultad de Ciencias, Isla Teja, Universidad Austral de Chile, 5090000, Valdivia, Chile
| | - Felipe de la Cruz-Martínez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Avda. Camilo José Cela, 10, 13071, Ciudad Real, Spain.,Facultad de Farmacia, 02006, Albacete, Spain
| | - Marc Martínez de Sarasa Buchaca
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Avda. Camilo José Cela, 10, 13071, Ciudad Real, Spain.,Facultad de Farmacia, 02006, Albacete, Spain
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Avda. Camilo José Cela, 10, 13071, Ciudad Real, Spain.,Facultad de Farmacia, 02006, Albacete, Spain
| | - Luis F Sánchez-Barba
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, 28933, Spain
| | - Michael North
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - José A Castro-Osma
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Avda. Camilo José Cela, 10, 13071, Ciudad Real, Spain.,Facultad de Farmacia, 02006, Albacete, Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Avda. Camilo José Cela, 10, 13071, Ciudad Real, Spain.,Facultad de Farmacia, 02006, Albacete, Spain
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da Costa TB, da Silva MGC, Vieira MGA. Equilibrium, Thermodynamic, Reuse, and Selectivity Studies for the Bioadsorption of Lanthanum onto Sericin/Alginate/Poly(vinyl alcohol) Particles. Polymers (Basel) 2021; 13:623. [PMID: 33669541 DOI: 10.3390/polym13040623] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/11/2022] Open
Abstract
In a scenario of high demand, low availability, and high economic value, the recovery of rare-earth metals from wastewater is economically and environmentally attractive. Bioadsorption is a promising method as it offers simple design and operation. The aim of this study was to investigate lanthanum bioadsorption using a polymeric bioadsorbent of sericin/alginate/poly(vinyl alcohol)-based biocomposite. Batch system assays were performed to evaluate the equilibrium, thermodynamics, regeneration, and selectivity of bioadsorption. The maximum capture amount of lanthanum at equilibrium was 0.644 mmol/g at 328 K. The experimental equilibrium data were better fitted by Langmuir and Dubinin-Radushkevich isotherms. Ion exchange mechanism between calcium and lanthanum (2:3 ratio) was confirmed by bioadsorption isotherms. Thermodynamic quantities showed that the process of lanthanum bioadsorption was spontaneous (-17.586, -19.244, and -20.902 kJ/mol), endothermic (+15.372 kJ/mol), and governed by entropic changes (+110.543 J/mol·K). The reusability of particles was achieved using 0.1 mol/L HNO3/Ca(NO3)2 solution for up to five regeneration cycles. The bioadsorbent selectivity followed the order of lanthanum > cadmium > zinc > nickel. Additionally, characterization of the biocomposite prior to and post lanthanum bioadsorption showed low porosity (9.95 and 12.35%), low specific surface area (0.054 and 0.019 m2/g), amorphous character, and thermal stability at temperatures up to 473 K. This study shows that sericin/ alginate/poly(vinyl alcohol)-based biocomposites are effective in the removal and recovery of lanthanum from water.
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Sescu AM, Harja M, Favier L, Berthou LO, Gomez de Castro C, Pui A, Lutic D. Zn/La Mixed Oxides Prepared by Coprecipitation: Synthesis, Characterization and Photocatalytic Studies. Materials (Basel) 2020; 13:E4916. [PMID: 33142946 PMCID: PMC7663376 DOI: 10.3390/ma13214916] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/04/2022]
Abstract
Mixed oxides containing zinc and lanthanum were prepared by coprecipitation in alkaline medium, followed by calcination at 400 °C. The initial precipitation product and the calcined form were characterized by Brunauer-Emmett-Teller (BET) method adsorption of nitrogen at -196 °C, Scanning Electron Microscopy/Electron-Probe Microanalysis (SEM/EPM), Ultraviolet-Diffuse Reflectance Spectroscopy (UV-DRS) and Infrared (IR) spectroscopy. The band gap slightly changes from 3.23 eV to 3 eV by calcination. The photocatalytic performance of the solids were investigated in diluted aqueous medium, by using clofibric acid (CA), a stable and toxic molecule used as precursor in some pesticides and drugs, as test compound, possibly found in the wastewaters in low concentrations. The effects of the degradation extent, determined by high performance liquid chromatography (HPLC) and total organic carbon (TOC) measurements, were investigated at different initial concentrations of CA. Within about 60 min the CA degradation is almost total at low concentration values (3 ppm) and reaches over 80% in 180 min for an initial concentration of 50 ppm. Moreover, the CA removal performance of photocatalyst remains excellent after three cycles of use: the removal yield was practically total after 60 min in the first two cycles and reached 95% even in the third cycle.
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Affiliation(s)
- Amalia Maria Sescu
- Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73, Prof.dr.doc. D. Mangeron Blvd., 700050 Iasi, Romania;
| | - Maria Harja
- Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73, Prof.dr.doc. D. Mangeron Blvd., 700050 Iasi, Romania;
| | - Lidia Favier
- Ecole Nationale Supérieure de Chimie de Rennes, Univ Rennes, CNRS, ISCR—UMR6226, F-35000 Rennes, France;
| | - Laurence Oughebbi Berthou
- Ecole Nationale Supérieure de Chimie de Rennes, Univ Rennes, CNRS, ISCR—UMR6226, F-35000 Rennes, France;
| | - Consuelo Gomez de Castro
- Department of Materials and Chemical Engineering, Faculty of Chemical, Complutense University of Madrid, Av. Séneca, 2, 28040 Madrid, Spain;
| | - Aurel Pui
- Department of Chemistry, Faculty of Chemistry, “Alexandru Ioan Cuza” University of Iasi, Bvld. Carol I No 11, 700506 Iasi, Romania;
| | - Doina Lutic
- Department of Chemistry, Faculty of Chemistry, “Alexandru Ioan Cuza” University of Iasi, Bvld. Carol I No 11, 700506 Iasi, Romania;
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Lu VM, McDonald KL. Lanthanum nanoparticles to target the brain: proof of biodistribution and biocompatibility with adjuvant therapies. Nanomedicine (Lond) 2020; 15:2107-2117. [PMID: 32867588 DOI: 10.2217/nnm-2020-0165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: To determine the biodistribution of lanthanum (III) oxide (La2O3) nanoparticle (NP) therapy to the brain and its biocompatibility with radiation therapy (RT) and chemotherapy (CT). Materials & methods: Healthy balb/c nude mice were administered 4 weekly doses of La2O3 NP therapy via tail vein injection. Organ weights and lanthanum concentrations were evaluated. Results: La2O3 NP penetrated the brain. Concentrations were found to peak in the brain at 24 h after injection and persisted at 8 weeks after injection. Neither RT nor CT affected biodistribution. No adverse events or safety concerns in other organs were noted. Conclusion: La2O3 NP can reach the brain to target neurological disease and is biocompatible with RT and CT in a biological system.
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Affiliation(s)
- Victor M Lu
- Lowy Cancer Center, University of New South Wales, Sydney, NSW, Australia.,Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Kerrie L McDonald
- Lowy Cancer Center, University of New South Wales, Sydney, NSW, Australia
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Suzuki T, Sackmann A, Oprea A, Weimar U, Bârsan N. Chemoresistive CO 2 Gas Sensors Based On La 2O 2CO 3: Sensing Mechanism Insights Provided by Operando Characterization. ACS Sens 2020; 5:2555-2562. [PMID: 32786387 DOI: 10.1021/acssensors.0c00882] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Our previous studies demonstrated that rare-earth oxycarbonates Ln2O2CO3 (Ln = La, Nd, and Sm) and rare-earth oxides Ln2O3 (Ln = Nd, Sm, Gd, Dy, Er, and Yb) are sensitive to CO2 and that hexagonal La2O2CO3 is the best among them in terms of sensitivity, stability, and selectivity. In this study, we have conducted a comprehensive operando characterization on a hexagonal La2O2CO3 based sensor for the basic understanding of the sensing mechanism. This was done by performing under actual operating conditions simultaneous DC resistance and work function changes measurements, AC impedance spectroscopy measurements, and simultaneous DC resistance and DRIFT spectroscopy measurements. The results demonstrate that the double Schottky barriers at grain-grain boundaries are dominant contribution to sensor resistance; there is a competitive adsorption between carbonate species and hydroxyl groups, which depends on both CO2 concentration and humidity and leads to the change in height of the Schottky barriers. Finally, we propose a reaction model stating that there are three types of adsorbates, -CO32-, -OH-, and -O2-, and the relative concentration of which is controlled by a reaction with ambient humidity and CO2. This model is able to consistently explain all our experimental findings.
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Affiliation(s)
- Takuya Suzuki
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
- Corporate R&D Headquarters, Fuji electric Co. Ltd., Hino-city Tokyo 1918502, Japan
| | - Andre Sackmann
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Alexandru Oprea
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Udo Weimar
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Nicolae Bârsan
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
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Buschmann DA, Dietrich HM, Schneider D, Birkelbach VM, Stuhl C, Törnroos KW, Maichle‐Mössmer C, Anwander R. Nanoscale Organo lanthanum Clusters: Nuclearity-Directing Role of Cyclopentadienyl and Halogenido Ligands. Chemistry 2020; 26:10834-10840. [PMID: 32329535 PMCID: PMC7496188 DOI: 10.1002/chem.202001482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Indexed: 11/08/2022]
Abstract
Tetramethylaluminato/halogenido(X) ligand exchange reactions in half-sandwich complexes [CpR La(AlMe4 )2 ] are feasible in non-coordinating solvents and provide access to large coordination clusters of the type [CpR LaX2 ]x . Incomplete exchange reactions generate the hexalanthanum clusters [CpR 6 La6 X8 (AlMe4 )4 ] (CpR =Cp*=C5 Me5 , X=I; CpR =Cp'=C5 H4 SiMe3 , X=Br, I). Treatment of [Cp*La(AlMe4 )2 ] with two equivalents Me3 SiI gave the nonalanthanum cluster [Cp*LaI2 ]9 , while the exhaustive reaction of [Cp'La(AlMe4 )2 ] with the halogenido transfer reagents Me3 GeX and Me3 SiX (X=I, Br, Cl) produced a series of monocyclopentadienyl rare-earth-metal clusters with distinct nuclearity. Depending on the halogenido ion size the homometallic clusters [Cp'LaCl2 ]10 and [Cp'LaX2 ]12 (X=Br, I) could be isolated, whereas different crystallization techniques led to the aggregation of clusters of distinct structural motifs, including the desilylated cyclopentadienyl-bridged cluster [(μ-Cp)2 Cp'8 La8 I14 ] and the heteroaluminato derivative [Cp'10 La10 Br18 (AlBr2 Me2 )2 ]. The use of the Cp' ancillary ligand facilitates cluster characterization by means of NMR spectroscopy.
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Affiliation(s)
- Dennis A. Buschmann
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - H. Martin Dietrich
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - David Schneider
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Verena M. Birkelbach
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Christoph Stuhl
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Karl W. Törnroos
- Department of ChemistryUniversity of BergenAllégaten 415007BergenNorway
| | - Cäcilia Maichle‐Mössmer
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Reiner Anwander
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
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Kołodyńska D, Fila D, Hubicki Z. Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger. Molecules 2020; 25:molecules25163718. [PMID: 32824060 PMCID: PMC7464285 DOI: 10.3390/molecules25163718] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/04/2020] [Accepted: 08/11/2020] [Indexed: 11/16/2022] Open
Abstract
The recovery of La(III) and Ni(II) ions by a macroporous cation exchanger in sodium form (Lewatit Monoplus SP112) has been studied in batch experiments under varying HNO3 concentrations (0.2-2.0 mol/dm3), La(III) and Ni(II) concentrations (25-200 mg/dm3), phase contact time (1-360 min), temperature (293-333 K), and resin mass (0.1-0.5 g). The experimental data revealed that the sorption process was dependent on all parameters used. The maximum sorption capacities were found at CHNO3 = 0.2 mol/dm3, m = 0.1 g, and T = 333 K. The kinetic data indicate that the sorption followed the pseudo-second order and film diffusion models. The sorption equilibrium time was reached at approximately 30 and 60 min for La(III) and Ni(II) ions, respectively. The equilibrium isotherm data were best fitted with the Langmuir model. The maximum monolayer capacities of Lewatit Monoplus SP112 were equal to 95.34 and 60.81 mg/g for La(III) and Ni(II) ions, respectively. The thermodynamic parameters showed that the sorption process was endothermic and spontaneous. Moreover, dynamic experiments were performed using the columns set. The resin regeneration was made using HCl and HNO3 solutions, and the desorption results exhibited effective regeneration. The ATR/FT-IR and XPS spectroscopy results indicated that the La(III) and Ni(II) ions were coordinated with the sulfonate groups.
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Shimma S, Makino Y, Kojima K, Hirata T. Quantitative Visualization of Lanthanum Accumulation in Lanthanum Carbonate-Administered Human Stomach Tissues Using Mass Spectrometry Imaging. ACTA ACUST UNITED AC 2020; 9:A0086. [PMID: 32754422 PMCID: PMC7358108 DOI: 10.5702/massspectrometry.a0086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/29/2020] [Indexed: 11/25/2022]
Abstract
Platinum, a transition metal that is widely used in anti-cancer agents, also results in the development of nephropathy due to severe adverse reactions caused by platinum-induced nephrotoxicity. Reports on imaging with metals other than platinum remain are limited, even in preclinical studies. Furthermore, most of these are case reports, and the relationship between the distribution of the metal and clinical observations in human samples is not well understood. Here we report on visualizing lanthanum (139La), a component of Fosrenol, which is usually used for the treatment of hyperphosphatemia. Gastric inflammation, also known as hemorrhagic gastritis, is the main adverse event caused by Fosrenol. To conduct this study, 139La was visualized in gastric biopsy samples obtained from a patient using quantitative laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). We also compared the distribution of 139La in tissue and histochemical results. The areas where 139La accumulated corresponded to the macrophage-positive areas observed in immunohistochemistry studies using an anti-CD68 antibody. In contrast, we observed a debris-like crystal morphology in hematoxylin and eosin staining tissues. The debris was also associated with 139La accumulation. The abnormal accumulation of 139La crystals caused the observed inflammation. This phenomenon was previously characterized, but this is the first report in which 139La distribution and histochemical results are compared using LA-ICP-MS.
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Affiliation(s)
- Shuichi Shimma
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshiki Makino
- Geochemical Research Center, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Kazuto Kojima
- Keisuikai Oka Hospital, Honjo, Saitama 367-0031, Japan
| | - Takafumi Hirata
- Geochemical Research Center, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
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Abstract
Lanthanum (La) carbonate (LC) is one of the most popular phosphate binders used in dialysis patients with end-stage renal disease. Only a small amount of LC is believed to be absorbed from the gastrointestinal (GI) tract because LC strongly binds to dietary phosphate and forms insoluble complexes. La deposition in the gastroduodenal mucosa has been recently identified. Endoscopically, La deposition is demonstrated as whitish lesions of varying sizes and shapes in the gastroduodenal mucosa. Microscopically, La deposition is characterized by histiocytic reaction or small foreign body granulomas containing gray or brown materials mainly in the lamina propria of the GI mucosa. Some histiocytes containing La can migrate into regional lymph nodes via the lymphatic flow. The amount of La deposition in the gastroduodenal mucosa is correlated with the total dose of LC administration, and La deposition is almost consistently observed in LC-treated dialysis patients. Although the detailed mechanism of La deposition in the GI tract is still unclear, several factors, such as gastric pH and metaplastic change of the mucosal epithelium, may be involved in the La deposition in the gastroduodenal mucosa. Here we present an overview of the feature of La deposition in the GI tract.
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Cattaneo P. Crystal structure of La 24Ru 11. Acta Crystallogr E Crystallogr Commun 2020; 76:1206-1208. [PMID: 32844000 PMCID: PMC7405562 DOI: 10.1107/s2056989020008695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
The compound La24Ru11 (tetra-cosa-lanthanum undeca-ruthenium) crystallizes in a Ce24Co11-type structure. The non-centrosymmetric crystal structure (space group P63 mc) contains RuLa6 trigonal prisms, La6 octa-hedra and LaRu4 tetra-hedra and is closely related to that of Ce23Ni7Mg4. This communication highlights the crystal-chemical similarities and points out the differences between the two structures. All of the tested crystals were inversion twins.
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Affiliation(s)
- P. Cattaneo
- Sezione di Chimica Inorganica e Metallurgia - Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Genova, Italy
- Centrum för Analys och Syntes - Kemicentrum, Lunds Universitet, Lund, Sweden
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