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Patel V, Jose L, Philippot G, Aymonier C, Inerbaev T, McCourt LR, Ruppert MG, Qi D, Li W, Qu J, Zheng R, Cairney J, Yi J, Vinu A, Karakoti AS. Fluoride-assisted detection of glutathione by surface Ce 3+/Ce 4+ engineered nanoceria. J Mater Chem B 2022; 10:9855-9868. [PMID: 36415972 DOI: 10.1039/d2tb01135b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nanoceria has evolved as a promising nanomaterial due to its unique enzyme-like properties, including excellent oxidase mimetic activity, which significantly increases in the presence of fluoride ions. However, this significant increase in oxidase activity has never been utilised as a signal enhancer for the detection of biological analytes partly because of the lack of understanding of the mechanism involved in this process. In this study, we show that the surface oxidation state of cerium ions plays a very crucial role in different enzymatic activities, especially the oxidase mimetic activity by engineering nanoceria with three different surface Ce4+/Ce3+ compositions. Using DFT calculations combined with Bader charge analysis, it is demonstrated that stoichiometric ceria registers a higher oxidase mimetic activity than oxygen-deficient ceria with a low Ce4+/Ce3+ ratio due to a higher charge transfer from a substrate, 3,3',5,5' tetramethylbenzidine (TMB), to the ceria surface. We also show that the fluoride ions can significantly increase the charge transfer from the TMB surface to ceria irrespective of the surface Ce4+/Ce3+ ratio. Using this knowledge, we first compare the fluoride sensing properties of nanoceria with high Ce4+ and mixed Ce4+/Ce3+ oxidation states and further demonstrate that the linear detection range of fluoride ions can be extended to 1-10 ppm for nanoceria with mixed oxidation states. Then, we also demonstrate an assay for fluoride assisted detection of glutathione, an antioxidant with elevated levels during cancer, using nanoceria with a high surface Ce4+/Ce3+ ratio. The addition of fluoride ions in this assay allows the detection of glutathione in the linear range of 2.5-50 ppm with a limit of detection (LOD) of 3.8 ppm. These studies not only underpin the role of the surface Ce4+/Ce3+ ratio in tuning the fluoride assisted boost in the oxidase mimetic activity of nanoceria but also its strategic application in designing better colourimetric assays.
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Affiliation(s)
- Vaishwik Patel
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Linta Jose
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Gilles Philippot
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Cyril Aymonier
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Talgat Inerbaev
- L. N. Gumilyov Eurasian National University, Nur-Sultan 010008, Kazakhstan.,National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Luke R McCourt
- School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, 2308, Australia
| | - Michael G Ruppert
- School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, 2308, Australia
| | - Dongchen Qi
- Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Wei Li
- Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Jiangtao Qu
- School of Physics, The University of Sydney, NSW, 2000, Australia
| | - Rongkun Zheng
- School of Physics, The University of Sydney, NSW, 2000, Australia
| | - Julie Cairney
- School of Physics, The University of Sydney, NSW, 2000, Australia
| | - Jiabao Yi
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Ajay S Karakoti
- Global Innovative Center for Advanced Nanomaterials (GICAN), School of Engineering College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
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Yadav N, Patel V, Mccourt L, Ruppert M, Miller M, Inerbaev T, Mahasivam S, Vinu A, Singh S, Karakoti AS. Tuning the enzyme-like activities of cerium oxide nanoparticles using triethyl phosphite ligand. Biomater Sci 2022; 10:3245-3258. [DOI: 10.1039/d2bm00396a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cerium oxide nanoparticles (CeNPs) depict excellent in vitro and in vivo antioxidant properties, determined by the redox switching of surface cerium ions between its two oxidation states (Ce3+ and Ce4+)....
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Yusupov K, Inerbaev T, Råsander M, Pankratova D, Concina I, Larsson AJ, Vomiero A. Improved thermoelectric performance of Bi-deficient BiCuSeO material doped with Nb, Y, and P. iScience 2021; 24:103145. [PMID: 34723162 PMCID: PMC8531848 DOI: 10.1016/j.isci.2021.103145] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/17/2021] [Accepted: 09/13/2021] [Indexed: 11/24/2022] Open
Abstract
Thermoelectric materials convert waste heat into electric energy. Oxyselenide-based material, specifically, p-type BiCuSeO, is one of the most promising materials for these applications. There are numerous approaches to improve the heat-to-electricity conversion performance. Usually, these approaches are applied individually, starting from the pure intrinsic material. Higher performance could, however, be reached by combining a few strategies simultaneously. In the current work, yttrium, niobium, and phosphorous substitutions on the bismuth sites in already bismuth-deficient Bi1-xCuSeO systems were investigated via density functional theory. The bismuth-deficient system was used as the reference system for further introduction of substitutional defects. The substitution with phosphorous showed a decrease of up to 40 meV (11%) in the energy gap between conduction and valence bands at the highest substitution concentration. Doping with niobium led to the system changing from a p-type to an n-type conductor, which provides a possible route to obtain n-type BiCuSeO systems. Investigation of new semiconductor materials for thermoelectric application Study of electronic structure via density functional theory Prediction of new n-type semiconductor material Materials with enhanced heat-to-electricity conversion
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Affiliation(s)
- Khabib Yusupov
- Institute of Physics, Chemistry and Biology (IFM), Linkoping University, 583 30, Linkoping, Sweden
- Corresponding author
| | - Talgat Inerbaev
- Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk 630090, Russia
- L. N. Gumilyov Eurasian National University, Nur-Sultan 010008, Kazakhstan
| | - Mikael Råsander
- Applied Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97 187 Luleå, Sweden
| | - Daria Pankratova
- Experimental Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97 187 Luleå, Sweden
| | - Isabella Concina
- Experimental Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97 187 Luleå, Sweden
| | - Andreas J. Larsson
- Applied Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97 187 Luleå, Sweden
| | - Alberto Vomiero
- Experimental Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97 187 Luleå, Sweden
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy
- Corresponding author
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Inerbaev T, Xia W, Kilin DS. Magnetic-Field-Driven Electron Dynamics in Graphene. J Phys Chem Lett 2021; 12:4749-4754. [PMID: 33983028 DOI: 10.1021/acs.jpclett.1c01020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Graphene exhibits unique optoelectronic properties originating from the band structure at the Dirac points. It is an ideal model structure to study the electronic and optical properties under the influence of the applied magnetic field. In graphene, electric field, laser pulse, and voltage can create electron dynamics which is influenced by momentum dispersion. However, computational modeling of momentum-influenced electron dynamics under the applied magnetic field remains challenging. Here, we perform computational modeling of the photoexcited electron dynamics achieved in graphene under an applied magnetic field. Our results show that magnetic field leads to local deviation from momentum conservation for charge carriers. With the increasing magnetic field, the delocalization of electron probability distribution increases and forms a cyclotron-like trajectory. Our work facilitates understanding of momentum resolved magnetic field effect on non-equilibrium properties of graphene, which is critical for optoelectronic and photovoltaic applications.
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Affiliation(s)
- Talgat Inerbaev
- Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
- L. N. Gumilyov Eurasian National University, Nur-Sultan 010000, Kazakhstan
| | - Wenjie Xia
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Dmitri S Kilin
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
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Forde A, Inerbaev T, Hobbie EK, Kilin DS. Excited-State Dynamics of a CsPbBr3 Nanocrystal Terminated with Binary Ligands: Sparse Density of States with Giant Spin–Orbit Coupling Suppresses Carrier Cooling. J Am Chem Soc 2019; 141:4388-4397. [DOI: 10.1021/jacs.8b13385] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Talgat Inerbaev
- Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk 630090, Russia
- National University of Science and Technology MISIS, 4 Leninskiy pr., Moscow 119049, Russian Federation
- L. N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan
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Fatima, Vogel J, Inerbaev T, Oncel N, Kilin D. First-Principles Study of Charge Carrier Dynamics with Explicit Treatment of Momentum Dispersion on Si Nanowires along <211> crystallographic Directions. ACTA ACUST UNITED AC 2018. [DOI: 10.1557/adv.2018.560] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Vogel DJ, Kryjevski A, Inerbaev T, Kilin DS. Photoinduced Single- and Multiple-Electron Dynamics Processes Enhanced by Quantum Confinement in Lead Halide Perovskite Quantum Dots. J Phys Chem Lett 2017; 8:3032-3039. [PMID: 28325048 DOI: 10.1021/acs.jpclett.6b03048] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Methylammonium lead iodide perovskite (MAPbI3) is a promising material for photovoltaic devices. A modification of MAPbI3 into confined nanostructures is expected to further increase efficiency of solar energy conversion. Photoexcited dynamic processes in a MAPbI3 quantum dot (QD) have been modeled by many-body perturbation theory and nonadiabatic dynamics. A photoexcitation is followed by either exciton cooling (EC), its radiative (RR) or nonradiative recombination (NRR), or multiexciton generation (MEG) processes. Computed times of these processes fall in the order of MEG < EC < RR < NRR, where MEG is on the order of a few femtoseconds, EC is in the picosecond range, while RR and NRR are on the order of nanoseconds. Computed time scales indicate which electronic transition pathways can contribute to increase in charge collection efficiency. Simulated mechanisms of relaxation and their rates show that quantum confinement promotes MEG in MAPbI3 QDs.
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Affiliation(s)
- Dayton J Vogel
- Department of Chemistry, University of South Dakota , Vermillion, South Dakota 57069, United States
| | - Andrei Kryjevski
- Department of Physics, North Dakota State University , Fargo, North Dakota 58102, United States
| | - Talgat Inerbaev
- L.N. Gumilyov Eurasian National University , Astana 010008, Kazakhstan
- National University of Science and Technology "MISIS" , Moscow, 119049 Russian Federation
| | - Dmitri S Kilin
- Department of Chemistry, University of South Dakota , Vermillion, South Dakota 57069, United States
- Department of Chemistry and Biochemistry, North Dakota State University , Fargo, North Dakota 58102, United States
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Inerbaev T, Hoefelmeyer JD, Kilin DS. Photoinduced Charge Transfer from Titania to Surface Doping Site. J Phys Chem C Nanomater Interfaces 2013; 117:9673-9692. [PMID: 23795229 PMCID: PMC3688295 DOI: 10.1021/jp311076w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We evaluate a theoretical model in which Ru is substituting for Ti at the (100) surface of anatase TiO2. Charge transfer from the photo-excited TiO2 substrate to the catalytic site triggers the photo-catalytic event (such as water oxidation or reduction half-reaction). We perform ab-initio computational modeling of the charge transfer dynamics on the interface of TiO2 nanorod and catalytic site. A slab of TiO2 represents a fragment of TiO2 nanorod in the anatase phase. Titanium to ruthenium replacement is performed in a way to match the symmetry of TiO2 substrate. One molecular layer of adsorbed water is taken into consideration to mimic the experimental conditions. It is found that these adsorbed water molecules saturate dangling surface bonds and drastically affect the electronic properties of systems investigated. The modeling is performed by reduced density matrix method in the basis of Kohn-Sham orbitals. A nano-catalyst modeled through replacement defect contributes energy levels near the bottom of the conduction band of TiO2 nano-structure. An exciton in the nano-rod is dissipating due to interaction with lattice vibrations, treated through non-adiabatic coupling. The electron relaxes to conduction band edge and then to the Ru cite with faster rate than hole relaxes to the Ru cite. These results are of the importance for an optimal design of nano-materials for photo-catalytic water splitting and solar energy harvesting.
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Affiliation(s)
- Talgat Inerbaev
- Gumilyov Eurasian National University Astana, Munaitpasov st. 5, 010008, Kazakhstan
| | - James D. Hoefelmeyer
- Department of Chemistry, University of South Dakota, 414 E. Clark St., Vermillion, SD 57069
| | - Dmitri S. Kilin
- Department of Chemistry, University of South Dakota, 414 E. Clark St., Vermillion, SD 57069
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Gaynor JD, Karakoti AS, Inerbaev T, Sanghavi S, Nachimuthu P, Shutthanandan V, Seal S, Thevuthasan S. Enzyme-free detection of hydrogen peroxide from cerium oxide nanoparticles immobilized on poly(4-vinylpyridine) self-assembled monolayers. J Mater Chem B 2013; 1:3443-3450. [DOI: 10.1039/c3tb20204f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gangopadhayay S, Inerbaev T, Masunov AE, Altilio D, Orlovskaya N. Structural characterization combined with the first principles simulations of barium/strontium cobaltite/ferrite as promising material for solid oxide fuel cells cathodes and high-temperature oxygen permeation membranes. ACS Appl Mater Interfaces 2009; 1:1512-1519. [PMID: 20355954 DOI: 10.1021/am900182p] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Mixed ionic-electronic conducting perovskite type oxides with a general formula ABO(3) (where A = Ba, Sr, Ca and B = Co, Fe, Mn) often have high mobility of the oxygen vacancies and exhibit strong ionic conductivity. They are key materials that find use in several energy related applications, including solid oxide fuel cell (SOFC), sensors, oxygen separation membranes, and catalysts. Barium/strontium cobaltite/ferrite (BSCF) Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-delta) was recently identified as a promising candidate for cathode material in intermediate temperature SOFCs. In this work, we perform experimental and theoretical study of the local atomic structure of BSFC. Micro-Raman spectroscopy was performed to characterize the vibrational properties of BSCF. The Jahn-Teller distortion of octahedral coordination around Co(4+) cations was observed experimentally and explained theoretically. Different cations and oxygen vacancies ordering are examined using plane wave pseudopotential density functional theory. We find that cations are completely disordered, whereas oxygen vacancies exhibit a strong trend for aggregation in L-shaped trimer and square tetramer structure. On the basis of our results, we suggest a new explanation for BSCF phase stability. Instead of linear vacancy ordering, which must take place before the phase transition into brownmillerite structure, the oxygen vacancies in BSCF prefer to form the finite clusters and preserve the disordered cubic structure. This structural feature could be found only in the first-principles simulations and can not be explained by the effect of the ionic radii alone.
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Affiliation(s)
- Shruba Gangopadhayay
- Nanoscience Technology Center, Institute for Simulation and Training, and Departments of Chemistry, Physics, and Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, Florida 32826, USA
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Babu S, Thanneeru R, Inerbaev T, Day R, Masunov AE, Schulte A, Seal S. Dopant-mediated oxygen vacancy tuning in ceria nanoparticles. Nanotechnology 2009; 20:085713. [PMID: 0 DOI: 10.1088/0957-4484/20/8/085713] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
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