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Demir B, Yola BB, Bekerecioğlu S, Polat İ, Yola ML. A nivalenol imprinted quartz crystal microbalance sensor based on sulphur-incorporating cobalt ferrite and its application to rice samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1215-1224. [PMID: 38314668 DOI: 10.1039/d4ay00008k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Nivalenol as a mycotoxin pesticide is toxic to humans and animals and causes major health problems including hemorrhage, anemia, and vomiting. Thus, the need for fast and reliable analytical systems in terms of the management of health risks resulting from nivalenol exposure has increased in recent years. The aim of this study involved a novel molecularly imprinted quartz crystal microbalance sensor preparation based on sulphur-incorporating cobalt ferrite for nivalenol detection in rice samples. For this aim, cobalt ferrite and sulfur incorporated cobalt ferrite were successfully synthesized by sol-gel and calcination methods, respectively. Then, nivalenol imprinted quartz crystal microbalance chips based on cobalt ferrite and sulfur incorporated cobalt ferrite were prepared by an ultraviolet polymerization technique including N,N'-azobisisobutyronitrile as the initiator, ethylene glycol dimethacrylate as the cross-linker, methacryloylamidoglutamic acid as the monomer, and nivalenol as the analyte. After some spectroscopic, electrochemical and microscopic characterization studies, the developed sensor was applied to rice grain samples for the determination of nivalenol. The linearity of the prepared sensor was observed to be 1.0-10.0 ng L-1 and the limit of quantification and detection limit were found to be 1.0 and 0.33 ng L-1, respectively. Finally, the high selectivity, repeatability, and stability of the prepared sensor based on sulphur-incorporating cobalt ferrite and a molecularly imprinted polymer can ensure safe food consumption worldwide.
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Affiliation(s)
- Betül Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, 27000, Turkey.
| | - Bahar Bankoğlu Yola
- Department of Engineering Basic Sciences, Faculty of Engineering and Natural Sciences, Gaziantep Islam Science and Technology University, Gaziantep, 27000, Turkey
| | - Sena Bekerecioğlu
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, 27000, Turkey.
| | - İlknur Polat
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, 27000, Turkey.
| | - Mehmet Lütfi Yola
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, 27000, Turkey.
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Synthesis of Reduced Graphene Oxide/Copper Tin Sulfide (Cu2SnS3) Composite for the Photocatalytic Degradation of Tetracycline. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02308-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sharma N, Swaminathan N, Chi CH, Gurung RB, Wu HF. Efficient solar steam generator using black SnOx cored PANI polymeric mesh under one Sun illumination. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Luo T, Wang Z, Wei X, Huang X, Bai S, Chen J. Surface Enriching Promotes Decomposition of Benzene from Air. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02296b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The low generation rate and short lifetime of reactive oxidation radicals typical like ·OH strictly limit the photocatalytic degradation of benzene in the air. Here, we adopt copper dopant to...
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Cai J, Zhang X, Zhang Y, Yang M, Huang B, Lin S. Titania nanotubes coated with graphene as a promising catalyst for the oxygen reduction reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj00547a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The enhanced electrocatalytic properties of rGO/TiO2NTs for the ORR are a result of increased specific surface area, number of active sites and accelerated electron conductivity.
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Affiliation(s)
- Jiannan Cai
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
| | - Xiaofeng Zhang
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
| | - Yi Zhang
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
| | - Mingxing Yang
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
| | - Baohua Huang
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
| | - Shen Lin
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou
- China
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Villa K, Novotný F, Zelenka J, Browne MP, Ruml T, Pumera M. Visible-Light-Driven Single-Component BiVO 4 Micromotors with the Autonomous Ability for Capturing Microorganisms. ACS NANO 2019; 13:8135-8145. [PMID: 31283169 DOI: 10.1021/acsnano.9b03184] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Light-driven micro/nanomotors represent the next generation of automotive devices that can be easily actuated and controlled by using an external light source. As the field evolves, there is a need for developing more sophisticated micromachines that can fulfill diverse tasks in complex environments. Herein, we introduce single-component BiVO4 micromotors with well-defined micro/nanostructures that can swim both individually and as collectively assembled entities under visible-light irradiation. These devices can perform cargo loading and transport of passive particles as well as living microorganisms without any surface functionalization. Interestingly, after photoactivation, the BiVO4 micromotors exhibited an ability to seek and adhere to yeast cell walls, with the possibility to control their attachment/release by switching the light on/off, respectively. Taking advantage of the selective motor/fungal cells attachment, the fungicidal activity of BiVO4 micromotors under visible illumination was also demonstrated. The presented star-shaped BiVO4 micromotors, obtained by a hydrothermal synthesis, contribute to the potential large-scale fabrication of light-powered micromotors. Moreover, these multifunctional single-component micromachines with controlled self-propulsion, collective behavior, cargo transportation, and photocatalytic activity capabilities hold promising applications in sensing, biohybrids assembly, cargo delivery, and microbiological water pollution remediation.
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Affiliation(s)
- Katherine Villa
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
| | - Filip Novotný
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
| | - Michelle P Browne
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
| | - Martin Pumera
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry , University of Chemistry and Technology Prague , Technická 5 , 166 28 Prague , Czech Republic
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro, Seodaemun-gu , Seoul 03722 , Korea
- Future Energy and Innovation Laboratory, Central European Institute of Technology , Brno University of Technology , Purkyňova 656/123 , Brno CZ-616 00 , Czech Republic
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Chatzitakis A, Sartori S. Recent Advances in the Use of Black TiO 2 for Production of Hydrogen and Other Solar Fuels. Chemphyschem 2019; 20:1272-1281. [PMID: 30633840 DOI: 10.1002/cphc.201801094] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 01/11/2019] [Indexed: 12/20/2022]
Abstract
Black TiO2 has emerged as one of the most promising photocatalysts recently discovered. The reason behind its catalytic activity is considered to be due to the presence of defects and Ti3+ species at the surface of black TiO2 nanostructures, which are crucial for its diverse applications. Moreover, disordered/crystalline surface layers and bulk regions have been identified and appear to influence the intrinsic properties of the material. Here, we present the latest studies on the use of black TiO2 for metal free hydrogen production, as well as for CO2 photoreduction and N2 photofixation. After highlighting the structure/property relations, we conclude with some critical questions and suggest further topics of research in order to better understand the underlying mechanisms of light absorption in black TiO2 , especially towards solar fuels production.
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Affiliation(s)
- Athanasios Chatzitakis
- Department of Chemistry, University of Oslo, Centre for Materials Science and Nanotechnology, FERMiO, Gaustadalléen 21, NO-0349, Oslo, Norway
| | - Sabrina Sartori
- Associate Professor S. Sartori, Department of Technology Systems, University of Oslo, NO-2027, Kjeller, Norway
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Yew R, Karuturi SK, Liu J, Tan HH, Wu Y, Jagadish C. Exploiting defects in TiO 2 inverse opal for enhanced photoelectrochemical water splitting. OPTICS EXPRESS 2019; 27:761-773. [PMID: 30696157 DOI: 10.1364/oe.27.000761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
In this work, we report on defects generation in TiO2 inverse opal (IO) nanostructures by electrochemical reduction in order to increase photocatalytic activity and improve photoelectrochemical (PEC) water splitting performance. Macroporous structures, such as inverse opals, have attracted a lot of attention for energy-related applications because of their large surface area, interconnected pores, and ability to enhance light-matter interaction. Photocurrent density of electrochemically reduced TiO2-IO increased by almost 4 times, compared to pristine TiO2-IO photoelectrodes. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) analyses confirm the presence of oxygen vacancies in electrochemically reduced TiO2-IO photoelectrodes. Oxygen vacancies extend the absorption of TiO2 from the UV to visible region. The incident photon-to-current efficiency (IPCE) increased by almost 3 times in the absorption (UV) region of TiO2 and slightly in the visible region. Impedance studies show improved electrical conductivity, longer photogenerated electron lifetime, and a negative shift of the flatband potential, which are attributed to oxygen vacancies acting as electron donors. The Fermi level shifts to be closer to the conduction band edge of TiO2-IO.
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Efficient development of Type-II TiO2 heterojunction using electrochemical approach for an enhanced photoelectrochemical water splitting performance. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63037-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Hu Q, Li J, Li Q, Wang G, Huang J, Huang X. One-step synthesis of nonstoichiometric TiO2 nanorod films for enhanced photocatalytic H2 evolution. Dalton Trans 2018; 47:4478-4485. [DOI: 10.1039/c8dt00066b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nonstoichiometric TiO2 nanorod films with high stability and excellent H2 generation activities have been obtained by a facile one-step sputtering method.
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Affiliation(s)
- Qianqian Hu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Jianrong Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Qiaohong Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Guo Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Jiquan Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Xiaoying Huang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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