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Roy M, Sykora M, Aslam M. Chemical Aspects of Halide Perovskite Nanocrystals. Top Curr Chem (Cham) 2024; 382:9. [PMID: 38430313 DOI: 10.1007/s41061-024-00453-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 01/24/2024] [Indexed: 03/03/2024]
Abstract
Halide perovskite nanocrystals (HPNCs) are currently among the most intensely investigated group of materials. Structurally related to the bulk halide perovskites (HPs), HPNCs are nanostructures with distinct chemical, optical, and electronic properties and significant practical potential. One of the keys to the effective exploitation of the HPNCs in advanced technologies is the development of controllable, reproducible, and scalable methods for preparation of materials with desired compositions, phases, and shapes and low defect content. Another important condition is a quantitative understanding of factors affecting the chemical stability and the optical and electronic properties of HPNCs. Here we review important recent developments in these areas. Following a brief historical prospective, we provide an overview of known chemical methods for preparation of HPNCs and approaches used to control their composition, phase, size, and shape. We then review studies of the relationship between the chemical composition and optical properties of HPNCs, degradation mechanisms, and effects of charge injection. Finally, we provide a short summary and an outlook. The aim of this review is not to provide a comprehensive summary of all relevant literature but rather a selection of highlights, which, in the subjective view of the authors, provide the most significant recent observations and relevant analyses.
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Affiliation(s)
- Mrinmoy Roy
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - Milan Sykora
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - M Aslam
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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2
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Ge Z, Zhao Y, Li J, Si Z, Du W, Su H. Multifunctional molecularly imprinted nanozymes with improved enrichment and specificity for organic and inorganic trace compounds. Nanoscale 2024; 16:2608-2620. [PMID: 38226643 DOI: 10.1039/d3nr03968d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Although nanozymes exhibit properties superior to those of natural enzymes and conventional engineered enzymes, the development of highly specific nanozymes remains a challenge. New yolk-shell Fe3O4 molecularly imprinted (MIP@void@Fe3O4) nanozymes with peroxidase-like activity were developed by modelling the substrate channels of natural enzymes through molecular imprinting techniques and interfacial affinity modifications in this study. To establish a platform technology for the adsorption and determination of inorganic and organic contaminants, lead ion (Pb2+) and diazinon (DIZ), respectively, were selected as imprinting templates, and a hollow mesoporous shell was synthesized. The as-prepared MIP@void@Fe3O4 nanozymes, characterized using TEM, HRTEM, SEM, FT-IR, TGA, VSM and XPS, not only affirmed the successful fabrication of a magnetic nanoparticle with a unique hollow core-shell structure but also facilitated an exploration of the interfacial bonding mechanisms between Fe3O4 and other shell layers. The enrichment of the MIP@void@Fe3O4 nanozymes due to imprinting was approximately 5 times higher than the local substrate concentration and contributed to the increased activity. Based on selective and competitive recognition experiments, the synthesized nanozymes could selectively recognize organic and inorganic targets with the lowest detection limits (LOD) of 6.6 × 10-9 ppm for Pb2+ and 5.13 × 10-11 M for DIZ. Therefore, the proposed biosensor is expected to be a potent tool for trace pollutant detection, which provides a rational design for more advanced and subtle methods to bridge the activity gap between natural enzymes and nanozymes.
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Affiliation(s)
- Zhanyi Ge
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Yilin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Jiayi Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Zhaobo Si
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Wenbo Du
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Haijia Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
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Li G, Liu YT, Yang F, Li M, Zhang Z, Pascual J, Wang ZK, Wei SZ, Zhao XY, Liu HR, Zhao JB, Lin CT, Li JM, Li Z, Abate A, Cantone I. Biotoxicity of Halide Perovskites in Mice. Adv Mater 2024; 36:e2306860. [PMID: 37703533 DOI: 10.1002/adma.202306860] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/28/2023] [Indexed: 09/15/2023]
Abstract
Halide perovskites are crystalline semiconductors with exceptional optoelectronic properties, rapidly developing toward large-scale applications. Lead (II) (Pb2+ ) is the core element used to prepare halide perovskites. Pb2+ can displace key 2+ elements, including calcium, zinc and iron, that regulate vital physiological functions. Sn2+ can replace Pb2+ within the perovskite structure and, if accidentally dispersed in the environment, it readily oxidizes to Sn4+ , which is compatible with physiological functions and thus potentially safe. The 3+ salt bismuth (III) (Bi3+ ) is also potentially safe for the same reason and useful to prepare double perovskites. Here, this work studies the biotoxicity of Pb, Sn, and Bi perovskites in mice for the first time. This work analyses histopathology and growth of mice directly exposed to perovskites and investigate the development of their offspring generation. This study provides the screening of organs and key physiological functions targeted by perovskite exposure to design specific studies in mammalians.
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Affiliation(s)
- Guixiang Li
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
- Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489, Berlin, Germany
| | - Yong-Tao Liu
- Department of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453002, China
| | - Feng Yang
- Henan Key Laboratory of Photovoltaic Materials, School of Physics, Henan Normal University, Xinxiang, 453007, China
| | - Meng Li
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
- Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489, Berlin, Germany
| | - Zuhong Zhang
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
| | - Jorge Pascual
- Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489, Berlin, Germany
| | - Zhao-Kui Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Shi-Zhe Wei
- Department of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453002, China
| | - Xin-Yuan Zhao
- Department of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453002, China
| | - Hai-Rui Liu
- Henan Key Laboratory of Photovoltaic Materials, School of Physics, Henan Normal University, Xinxiang, 453007, China
| | - Jin-Bo Zhao
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
| | - Chieh-Ting Lin
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 40227, Taiwan
| | - Jun-Ming Li
- Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489, Berlin, Germany
| | - Zhe Li
- School of Engineering and Materials Science (SEMS), Queen Mary University of London, London, E1 4NS, UK
| | - Antonio Abate
- Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489, Berlin, Germany
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale Tecchio 80, Naples, Fuorigrotta, 80125, Italy
| | - Irene Cantone
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, via Pansini 5, Naples, 80131, Italy
- CNR Istituto di Endocrinologia e Oncologia Sperimentale (IEOS), Via Pansini, 5, Naples, 80131, Italy
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Noirmain F, Baray JL, Deguillaume L, Van Baelen J, Latour D. Exploring the size-dependent dynamics of photosynthetic cells in rainwater: The influence of atmospheric variables and rain characteristics. Sci Total Environ 2024; 906:167746. [PMID: 37827319 DOI: 10.1016/j.scitotenv.2023.167746] [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] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The presence of microalgae in the atmosphere raises health and environmental concerns. Despite recent scientific advances, our knowledge of the origins and dynamics of photosynthetic cells in relation to atmospheric processes is limited due to a lack of empirical data. To address this gap, we conducted a one-year survey, collecting and analyzing rainwater samples. This study proposes to investigate the temporal dynamics of photosynthetic cells based on their size in combination with a unique dataset of variables of interest: type of rain and its characteristics, local meteorology, concentrations of inorganic chemical species, and long-range air mass transport. The analysis of the biochemical composition of rainwater, along with its correlation with the origin of air masses using ions as tracers, provides evidence of the long-range transport of photosynthetic cells. Additionally, our study reveals distinct removal mechanisms from the atmosphere for photosynthetic cells depending on their size. Our results suggest that convective events with high-intensity rainfall led to the efficient removal of medium-sized photosynthetic cells (4-15 μm) from the atmosphere. However, removal mechanisms for small (<4 μm) and large-sized cells (>15 μm) are not influenced by microphysical rainfall characteristics and seem to be governed by different atmospheric processes: dry deposition is proposed to be a significant mechanism for the removal of large-sized photosynthetic cells, while small-sized cells detected in rain are correlated with the horizontal wind speed and duration of rainfall, particularly during stratiform events. This implies that the removal of photosynthetic cells from the atmosphere is strongly influenced by environmental variables, which are expected to vary in response to global change. Therefore, it is crucial to enhance the monitoring of photosynthetic cells in relation to atmospheric processes and investigate the potential impact of the dissemination of genetic material from distant sources on recipient ecosystems.
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Affiliation(s)
- Fanny Noirmain
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Genome, Environnement (LMGE), UMR6023, Clermont-Ferrand, France.
| | - Jean-Luc Baray
- Université Clermont Auvergne, CNRS, Laboratoire de Météorologie Physique (LaMP), UMR6016, Clermont-Ferrand, France; Université Clermont Auvergne, CNRS, Observatoire de Physique du Globe de Clermont Ferrand (OPGC), UAR833, Clermont-Ferrand, France
| | - Laurent Deguillaume
- Université Clermont Auvergne, CNRS, Laboratoire de Météorologie Physique (LaMP), UMR6016, Clermont-Ferrand, France; Université Clermont Auvergne, CNRS, Observatoire de Physique du Globe de Clermont Ferrand (OPGC), UAR833, Clermont-Ferrand, France
| | - Joël Van Baelen
- Université de La Réunion, CNRS, Météo-France, Laboratoire de l'Atmosphère et des Cyclones (LACy), UMR8105, St Denis de la Réunion, France
| | - Delphine Latour
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Genome, Environnement (LMGE), UMR6023, Clermont-Ferrand, France
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Ngo LT, Huang WT, Chan MH, Su TY, Li CH, Hsiao M, Liu RS. Comprehensive Neurotoxicity of Lead Halide Perovskite Nanocrystals in Nematode Caenorhabditis elegans. Small 2024; 20:e2306020. [PMID: 37661358 DOI: 10.1002/smll.202306020] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Indexed: 09/05/2023]
Abstract
To date, all-inorganic lead halide perovskite quantum dots have emerged as promising materials for photonic, optoelectronic devices, and biological applications, especially in solar cells, raising numerous concerns about their biosafety. Most of the studies related to the toxicity of perovskite quantum dots (PeQDs) have focused on the potential risks of hybrid perovskites by using zebrafish or human cells. So far, the neurotoxic effects and fundamental mechanisms of PeQDs remain unknown. Herein, a comprehensive methodology is designed to investigate the neurotoxicity of PeQDs by using Caenorhabditis elegans as a model organism. The results show that the accumulation of PeQDs mainly focuses on the alimentary system and head region. Acute exposure to PeQDs results in a decrease in locomotor behaviors and pharyngeal pumping, whereas chronic exposure to PeQDs causes brood decline and shortens lifespan. In addition, some abnormal issues occur in the uterus during reproduction assays, such as vulva protrusion, impaired eggs left in the vulva, and egg hatching inside the mother. Excessive reactive oxygen species formation is also observed. The neurotoxicity of PeQDs is explained by gene expression. This study provides a complete insight into the neurotoxicity of PeQD and encourages the development of novel nontoxic PeQDs.
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Affiliation(s)
- Loan Thi Ngo
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program, Academia Sinica and National Taiwan University, Academia Road 128, Nankang, Taipei, 115, Taiwan
| | - Wen-Tse Huang
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Ming-Hsien Chan
- Genomics Research Center, Academia Sinica, Academia Road 128, Nankang, Taipei, 115, Taiwan
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan
| | - Ting-Yi Su
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Chien-Hsiu Li
- Genomics Research Center, Academia Sinica, Academia Road 128, Nankang, Taipei, 115, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Academia Road 128, Nankang, Taipei, 115, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
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Hien SG, Bouich A, Aka B, Marí Soucase B. Investigation of the stability of organic-inorganic halide perovskite thin films: Insight from experimental and simulation. J Mol Graph Model 2023; 124:108559. [PMID: 37542757 DOI: 10.1016/j.jmgm.2023.108559] [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] [Received: 02/01/2023] [Revised: 06/07/2023] [Accepted: 06/21/2023] [Indexed: 08/07/2023]
Abstract
Herein, we investigated the stability of lead halide perovskites under ambient conditions after mixing the two cations Formamidinium (FA) and Cesium (Cs). The CsxFA1-xPbI3 perovskites solutions were prepared with different contents of x (0.0, 0.3, 0.5, 0.7 and 1.0) and deposited on substrates by spin-coating technique. The CsxFA1-xPbI3 films were, afterwards, characterized using the X-ray diffraction (XRD), UV-visible spectroscopy, photoluminescence (PL) spectra and scanning electron microscopy (SEM) to figure out their crystallinity, morphology, and optical properties. We noticed a stable perovskite structure for the mixed compounds unalike the pure FA and Cs films. The XRD analysis revealed, even after two weeks, the growth and good stability after two weeks of the desired black cubic α-phase perovskite structure in opposite to FAPbI3 and CsPbI3 which, respectively, showed faster degradation and transition into non-perovskite δ-phase and ɣ-phase no perovskite phases. The mixed perovskites Cs-FA also displayed a high absorbance especially for the ones with 30% of Cs and 70% of FA or 50% of each, with an excellent band gap energy ranging between 1.52 and 1.7 eV where FAPbI3 and CsPbI3 were showing a bandgap between 1.5 and 1.9 eV respectively. Moreover, the performance of the CsxFA1-xPbI3 based solar cells were simulated with SCAPS by using the band gaps obtained from the experimental study and after by varying the band gap, the thickness of the absorber layers and then different types of Electron Transport Layer (ETL). The simulation results revealed that the Cs0.3FA0.7PbI3 based solar cells had the highest higher efficiency around 22.36%.
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Affiliation(s)
- Sié Georges Hien
- Laboratory of New Materials for Photovoltaic Energy, Institut de Disseny I Fabricacio, Universitat Politecnica, Valencia, Spain; Laboratory of Fundamental and Applied Sciences Research and Training Unit, University Nanguy Abrogoua, Côte d'Ivoire.
| | - Amal Bouich
- Laboratory of New Materials for Photovoltaic Energy, Institut de Disseny I Fabricacio, Universitat Politecnica, Valencia, Spain.
| | - Boko Aka
- Laboratory of Fundamental and Applied Sciences Research and Training Unit, University Nanguy Abrogoua, Côte d'Ivoire
| | - Bernabé Marí Soucase
- Laboratory of New Materials for Photovoltaic Energy, Institut de Disseny I Fabricacio, Universitat Politecnica, Valencia, Spain
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Charkin DO, Nazarchuk EV, Dmitriev DN, Grishaev VY, Omelchenko TA, Spiridonova DV, Siidra OI. Protonated Organic Diamines as Templates for Layered and Microporous Structures: Synthesis, Crystal Chemistry, and Structural Trends among the Compounds Formed in Aqueous Systems Transition Metal Halide or Nitrate-Diamine-Selenious Acid. Int J Mol Sci 2023; 24:14202. [PMID: 37762505 PMCID: PMC10532228 DOI: 10.3390/ijms241814202] [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] [Received: 06/27/2023] [Revised: 08/23/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Systematic studies of crystalline compounds formed in aqueous systems containing aliphatic diamines, divalent transition metal halides, and selenious acid resulted in the discovery of a large family of new complex species corresponding to several new structure types. With ethylenediamine (en), layered (enH2)[M(HSeO3)2X2] compounds are the most commonly formed species which constitute a significant contribution to the family of layered hydrogen selenites containing neutral [M(HSeO3)2] (M = Mg, Mn, Co, Ni, Cu, Zn, Cd) 2D building blocks. In contrast to some previous suggestions, piperazine (pip), as well as its homologue N-methylpiperazine, mostly give rise to quite different, sometimes more complex, structures of varied dimensionality while the (pipH2)[M(HSeO3)2X2] compounds are formed only with M = Cu and Cd. In addition, metal-, halide-, or selenium-free by-product species are observed. The SeIV can be present in a multitude of forms, including H2SeO3, HSeO3-, SeO32-, and Se2O52-, reflecting amazing adaptability to the shape of the templating cations.
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Affiliation(s)
- Dmitri O. Charkin
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Evgeny V. Nazarchuk
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
| | - Dmitri N. Dmitriev
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Vasili Yu. Grishaev
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
| | - Timofey A. Omelchenko
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Darya V. Spiridonova
- X-ray Diffraction Resource Center, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Oleg I. Siidra
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
- Kola Science Center, Russian Academy of Sciences, Fersman Str. 14, 184209 Apatity, Russia
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Gehlot H, Murugan S, Pokhriyal S. Influence of layer thickness on the power conversion efficiency of tin halide-based planar heterojunction solar cells. Environ Sci Pollut Res Int 2023; 30:98647-98654. [PMID: 36085226 DOI: 10.1007/s11356-022-22954-5] [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] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In recent years, perovskite-based solar cell technologies have sparked much interest. Organic-inorganic halide perovskites (OIHPs) are a type of perovskite that has shown promise in various optoelectronic applications. The power conversion efficiency (PCE) of organic-inorganic perovskite materials is improving with new materials development. However, inorganic materials studied in labs have limited PCE. Lead-free tin halide CH3NH3SnX3 shows good PCE. In this work, we study the electrical characteristics of tin halide as a perovskite absorbing layer in planar heterojunction solar cells with the help of GPVDM solar cell simulation software. A comparative study of power conversion efficiency has been done for tin halide of chloride, bromide, and iodide. The effect of electron and hole drift-diffusion, carrier continuity equations in position space to represent charge flow within the device, Poisson's equation, and charge carrier recombination has been studied in detail.
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Affiliation(s)
- Himanshu Gehlot
- Department of Physics, Vivekananda Global University, Jaipur, 303012, Rajasthan, India
| | - Sukanya Murugan
- Department of Physics, Vivekananda Global University, Jaipur, 303012, Rajasthan, India
| | - Sumit Pokhriyal
- Department of Physics, Graphic Era Hill University, Dehradun, 248002, Uttarakhand, India.
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Artem’ev AV, Baranov AY, Berezin AS, Stass DV, Hettstedt C, Kuzmina UA, Karaghiosoff K, Bagryanskaya IY. TADF and X-ray Radioluminescence of New Cu(I) Halide Complexes: Different Halide Effects on These Processes. Int J Mol Sci 2023; 24:ijms24065145. [PMID: 36982219 PMCID: PMC10049412 DOI: 10.3390/ijms24065145] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/20/2023] [Accepted: 03/02/2023] [Indexed: 03/10/2023] Open
Abstract
A series of complexes [Cu2X2(Pic3PO)2] (X = Cl, Br, I) based on tris(pyridin-2-ylmethyl)phosphine oxide (Pic3PO) has been synthesized. At 298 K, these compounds exhibit thermally activated delayed fluorescence (TADF) of 1(M+X)LCT type with λmax varying from 485 to 545 nm, and quantum efficiency up to 54%. In the TADF process, the halide effect appears as the emission intensification and bathochromic shift of λmax in the following order X = I < Br < Cl. Upon X-ray irradiation, the title compounds emit radioluminescence, the emission bands of which have the same shape as those at TADF, thereby meaning a similar radiative excited state. By contrast to TADF, the halide effect in the radioluminescence is reversed: its intensity grows in the order X = Cl < Br < I, since heavier atoms absorb X-rays more efficiently. These findings essentially contribute to our knowledge about the halide effect in the photo- and radioluminescent Cu(I) halide emitters.
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Affiliation(s)
- Alexander V. Artem’ev
- Nikolaev Institute of Inorganic Chemistry, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
- Correspondence:
| | - Andrey Yu. Baranov
- Nikolaev Institute of Inorganic Chemistry, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Alexey S. Berezin
- Nikolaev Institute of Inorganic Chemistry, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Dmitry V. Stass
- Department of Physics, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya St., Novosibirsk 630090, Russia
| | - Christina Hettstedt
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5–13, 81377 Munich, Germany
| | - Ul’yana A. Kuzmina
- Nikolaev Institute of Inorganic Chemistry, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
- Department of Physics, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Konstantin Karaghiosoff
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5–13, 81377 Munich, Germany
| | - Irina Yu. Bagryanskaya
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, 9, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
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Aminzare M, Jiang J, Mandl GA, Mahshid S, Capobianco JA, Dorval Courchesne NM. Biomolecules incorporated in halide perovskite nanocrystals: synthesis, optical properties, and applications. Nanoscale 2023; 15:2997-3031. [PMID: 36722934 DOI: 10.1039/d2nr05565a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Halide perovskite nanocrystals (HPNCs) have emerged at the forefront of nanomaterials research over the past two decades. The physicochemical and optoelectronic properties of these inorganic semiconductor nanoparticles can be modulated through the introduction of various ligands. The use of biomolecules as ligands has been demonstrated to improve the stability, luminescence, conductivity and biocompatibility of HPNCs. The rapid advancement of this field relies on a strong understanding of how the structure and properties of biomolecules influences their interactions with HPNCs, as well as their potential to extend applications of HPNCs towards biological applications. This review addresses the role of several classes of biomolecules (amino acids, proteins, carbohydrates, nucleotides, etc.) that have shown promise for improving the performance of HPNCs and their potential applications. Specifically, we have reviewed the recent advances on incorporating biomolecules with HP nanomaterials on the formation, physicochemical properties, and stability of HP compounds. We have also shed light on the potential for using HPs in biological and environmental applications by compiling some recent of proof-of-concept demonstrations. Overall, this review aims to guide the field towards incorporating biomolecules into the next-generation of high-performance HPNCs for biological and environmental applications.
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Affiliation(s)
- Masoud Aminzare
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
| | - Jennifer Jiang
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
| | - Gabrielle A Mandl
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, 7141 Rue Sherbrooke Ouest, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Sara Mahshid
- Department of Bioengineering, McGill University, 817 Sherbrooke Street West, Macdonald Engineering Building, Room 355, Montréal, QC, H3A 0C3, Canada
| | - John A Capobianco
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, 7141 Rue Sherbrooke Ouest, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Noémie-Manuelle Dorval Courchesne
- Department of Chemical Engineering, McGill University, 3610 University Street, Wong Building, Room 4180, Montréal, QC, H3A 0C5, Canada.
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11
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Ma H, Wang X, Wang C, Zhang H, Ma X, Deng W, Chen R, Cao T, Chai Y, He Y, Ji W, Li R, Chen J, Ji J, Rao W, Xue M. Metal Halides for High-Capacity Energy Storage. Small 2023; 19:e2205071. [PMID: 36366943 DOI: 10.1002/smll.202205071] [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] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/15/2022] [Indexed: 06/16/2023]
Abstract
High-capacity electrochemical energy storage systems are more urgently needed than ever before with the rapid development of electric vehicles and the smart grid. The most efficient way to increase capacity is to develop electrode materials with low molecular weights. The low-cost metal halides are theoretically ideal cathode materials due to their advantages of high capacity and redox potential. However, their cubic structure and large energy barrier for deionization impede their rechargeability. Here, the reversibility of potassium halides, lithium halides, sodium halides, and zinc halides is achieved through decreasing their dimensionality by the strong π-cation interactions between metal cations and reduced graphene oxide (rGO). Especially, the energy densities of KI-, KBr-, and KCl-based materials are 722.2, 635.0, and 739.4 Wh kg-1 , respectively, which are higher than those of other cathode materials for potassium-ion batteries. In addition, the full-cell with 2D KI/rGO as cathode and graphite as anode demonstrates a lifespan of over 150 cycles with a considerable capacity retention of 57.5%. The metal halides-based electrode materials possess promising application prospects and are worthy of more in-depth researches.
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Affiliation(s)
- Hui Ma
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xusheng Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Cong Wang
- Department of Physics, Renmin University of China, Beijing, 100872, China
| | - Huanrong Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinlei Ma
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Wenjun Deng
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Ruoqi Chen
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tianqi Cao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuqiao Chai
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yonglin He
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Wei Ji
- Department of Physics, Renmin University of China, Beijing, 100872, China
| | - Rui Li
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Jitao Chen
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Junhui Ji
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wei Rao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Mianqi Xue
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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12
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Cho C, Feldmann S, Yeom KM, Jang YW, Kahmann S, Huang JY, Yang TCJ, Khayyat MNT, Wu YR, Choi M, Noh JH, Stranks SD, Greenham NC. Efficient vertical charge transport in polycrystalline halide perovskites revealed by four-dimensional tracking of charge carriers. Nat Mater 2022; 21:1388-1395. [PMID: 36396960 DOI: 10.1038/s41563-022-01395-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Fast diffusion of charge carriers is crucial for efficient charge collection in perovskite solar cells. While lateral transient photoluminescence microscopies have been popularly used to characterize charge diffusion in perovskites, there exists a discrepancy between low diffusion coefficients measured and near-unity charge collection efficiencies achieved in practical solar cells. Here, we reveal hidden microscopic dynamics in halide perovskites through four-dimensional (directions x, y and z and time t) tracking of charge carriers by characterizing out-of-plane diffusion of charge carriers. By combining this approach with confocal microscopy, we discover a strong local heterogeneity of vertical charge diffusivities in a three-dimensional perovskite film, arising from the difference between intragrain and intergrain diffusion. We visualize that most charge carriers are efficiently transported through the direct intragrain pathways or via indirect detours through nearby areas with fast diffusion. The observed anisotropy and heterogeneity of charge carrier diffusion in perovskites rationalize their high performance as shown in real devices. Our work also foresees that further control of polycrystal growth will enable solar cells with micrometres-thick perovskites to achieve both long optical path length and efficient charge collection simultaneously.
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Affiliation(s)
- Changsoon Cho
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | - Sascha Feldmann
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
- Rowland Institute, Harvard University, Cambridge, MA, USA
| | - Kyung Mun Yeom
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Yeoun-Woo Jang
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Simon Kahmann
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Jun-Yu Huang
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
- Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
| | - Terry Chien-Jen Yang
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | | | - Yuh-Renn Wu
- Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Jun Hong Noh
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea
- Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul, Republic of Korea
| | - Samuel D Stranks
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Neil C Greenham
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK.
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13
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Wang S, Lei Y, Chen H, Peng G, Wang Q, Wang H, Duan J, Jin Z. Vertically Oriented Porous PET as Template to Integrated Metal Halide for High-Performance Large-Area and Ultra-Flexible X-Ray Detector. Small 2022; 18:e2205095. [PMID: 36373681 DOI: 10.1002/smll.202205095] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/04/2022] [Indexed: 06/16/2023]
Abstract
High-performance X-ray detectors have immense potential in medical and security inspections. However, the current X-ray detectors are limited in flexible, high-spatial-resolution large-scale detection, and integration for imaging. Here, nuclear track-etched porous polyethylene terephthalate (PET) is developed as the template for preparing uniform, large-area (≥105 cm2 ), and flexible metal halide (MH)-based X-ray detectors. Adjustable high-density vertically oriented porous PET with adjustable thickness can provide proper physical support for flexible thick absorption film, thus improving X-ray absorption ability with excellent bending stability. Moreover, vertical channels can block the ion migration, lateral charge diffusion, and water/oxygen attacks, increasing activation energy for ionic transport, charge collection rate of electrodes, and environmental stability. Hence, the related detectors eventually obtain large sensitivity (6722 µC Gyair -1 cm-2 ), low detection limit (1.87 nGyair s-1 ), and high spatial resolution (5.17 lp mm-1 ) compared to the detectors without porous PET template. Meanwhile, the device shows no degradation after storage or working under various thermal attacks. MH-filled-PET is also monolithically integrated on the bottom circuit with different MHs and it is applied to single-pixel mode and fast linear-array imaging in a broad range of X-rays photon energy (20 to 160 keV).
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Affiliation(s)
- Shuo Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Yutian Lei
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Huanyu Chen
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Guoqiang Peng
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Qian Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Haoxu Wang
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Jinglai Duan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, Guangdong, 516000, China
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
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14
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Gao P, Cheng S, Liu J, Li J, Guo Y, Deng Z, Qin T, Wang A. Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs. Molecules 2022; 27:molecules27238259. [PMID: 36500354 PMCID: PMC9736304 DOI: 10.3390/molecules27238259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Lead-free all-inorganic halide materials with different Mn2+-based crystal structures (Cs3MnBr5 and CsMnBr3) were obtained using a convenient synthetic method. Cs3MnBr5 had a bright green emission (522 nm), with a unique single-exponential lifetime (τavg = 236 µs) and a high photoluminescence quantum yield (82 ± 5%). A red emission was observed in the case of the CsMnBr3 structure with a two-exponential fluorescence decay curve, and the lifetime was 1.418 µs (93%) and 18.328 µs (7%), respectively. By a judicious tuning of the synthetic conditions, a mixed phase of Cs3MnBr5/CsMnBr3 was also produced that emitted white light, covering almost the entire visible spectrum. White-light-emitting diodes (WLEDs) with color coordinates (0.4269, 0.4955), a color temperature of (3773 K), and a color rendering index (68) were then fabricated using the as-prepared powder of mixed phases of Cs3MnBr5/CsMnBr3 with a commercial UV LED chip (365 nm).
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Affiliation(s)
- Ping Gao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
| | - Suwen Cheng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
| | - Jiaxin Liu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
| | - Junjie Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
| | - Yanyan Guo
- State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Micro-Structures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210023, China
| | - Zhengtao Deng
- State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Micro-Structures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210023, China
| | - Tianshi Qin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
| | - Aifei Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
- Correspondence:
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15
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Park S, Kang Y, Kwon H, Kim H, Kang S, Lee H, Yoon C, Park J. Novel Yellow Azo Pyridone Derivatives with Different Halide Atoms for Image-Sensor Color Filters. Molecules 2022; 27:6601. [PMID: 36235139 PMCID: PMC9572834 DOI: 10.3390/molecules27196601] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/01/2022] [Accepted: 10/02/2022] [Indexed: 11/30/2022] Open
Abstract
Novel yellow azo pyridone dye derivatives were synthesized for use in image-sensor color filters. The synthesized compounds have a basic chemical structure composed of azo, hydroxy, amide, and nitrile groups as well as different halide groups. New materials were evaluated on the basis of their optical, thermal, and surface properties under conditions mimicking those of a commercial device fabrication process. A comparison of their related performance revealed that, among the four prepared compounds, 5-((4,6-dichlorocyclohexa-2,4-dien-1-yl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (Cl-PAMOPC) exhibited the best performance as an image-sensor color filter material, including a solubility greater than 0.1 wt% in propylene glycol monomethyl ether acetate solvent, a high decomposition temperature of 263 °C, and stable color difference values of 4.93 and 3.88 after a thermal treatment and a solvent-resistance test, respectively. The results suggest that Cl-PAMOPC can be used as a green dye additive in an image-sensor colorant.
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Affiliation(s)
- Sunwoo Park
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Yuna Kang
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Hyukmin Kwon
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Hayeon Kim
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Seokwoo Kang
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Hayoon Lee
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Chun Yoon
- Department of Chemistry, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Korea
| | - Jongwook Park
- Integrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea
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16
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De Bastiani M, Grancini G. Rising of halide perovskite epitaxial structures. Nat Mater 2022; 21:1000-1002. [PMID: 36002719 DOI: 10.1038/s41563-022-01331-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
| | - Giulia Grancini
- Department of Chemistry and INSTM, University of Pavia, Pavia, Italy.
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17
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Borrego-Sánchez A, Gutiérrez-Ariza C, Sainz-Díaz CI, Cartwright JHE. The Effect of the Presence of Amino Acids on the Precipitation of Inorganic Chemical-Garden Membranes: Biomineralization at the Origin of Life. Langmuir 2022; 38:10538-10547. [PMID: 35974697 PMCID: PMC9434990 DOI: 10.1021/acs.langmuir.2c01345] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/03/2022] [Indexed: 06/07/2023]
Abstract
If life developed in hydrothermal vents, it would have been within mineral membranes. The first proto-cells must have evolved to manipulate the mineral membranes that formed their compartments in order to control their metabolism. There must have occurred a biological takeover of the self-assembled mineral structures of the vents, with the incorporation of proto-biological molecules within the mineral membranes to alter their properties for life's purposes. Here, we study a laboratory analogue of this process: chemical-garden precipitation of the amino acids arginine and tryptophan with the metal salt iron chloride and sodium silicate. We produced these chemical gardens using different methodologies in order to determine the dependence of the morphology and chemistry on the growth conditions, as well as the effect of the amino acids on the formation of the iron-silicate chemical garden. We compared the effects of having amino acids initially within the forming chemical garden, corresponding to the internal zones of hydrothermal vents, or else outside, corresponding to the surrounding ocean. The characterization of the formed chemical gardens using X-ray diffraction, Fourier transform infrared spectroscopy, elemental analysis, and scanning electron microscopy demonstrates the presence of amino acids in these structures. The growth method in which the amino acid is initially in the tablet with the iron salt is that which generated chemical gardens with more amino acids in their structures.
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Affiliation(s)
- Ana Borrego-Sánchez
- Instituto
Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Armilla, 18100 Granada Spain
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain
| | - Carlos Gutiérrez-Ariza
- Instituto
Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Armilla, 18100 Granada Spain
| | - C. Ignacio Sainz-Díaz
- Instituto
Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Armilla, 18100 Granada Spain
| | - Julyan H. E. Cartwright
- Instituto
Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Armilla, 18100 Granada Spain
- Instituto
Carlos I de Física Teórica y Computacional, Universidad de Granada, 18071 Granada, Spain
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18
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Chowdhury S, Koyappathody TMF, Karanfil T. Removal of halides from drinking water: technological achievements in the past ten years and research needs. Environ Sci Pollut Res Int 2022; 29:55514-55527. [PMID: 35689777 DOI: 10.1007/s11356-022-21346-z] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Disinfection is an essential process for drinking water supplies resulting in the formation of unintended disinfection by-products (DBPs), many of which are potentially toxic and are known as the possible or probable human carcinogens. As of now, 100+ DBPs were characterized while about 600+ others can be formed in the supply water. To protect the human health, many regulatory agencies have set the guideline values for several DBPs. Removal of halide ions and natural organic matter prior to disinfection is an important step to reduce DBPs, and the associated exposure and risks. To date, many publications have reported various methods for halide removal from drinking water. The most review about halide removal technologies, associated challenges, and future research needs was published in 2012. Since then, a number of studies have been published on different methods of halide removal techniques. This paper aims to review the state of research on halide removal techniques focusing on the development during the past 10 years (2012-2021). The techniques were clustered into six major groups: adsorption, ion exchange, coagulation, advanced oxidation, membrane separation, and combined techniques. The progress on these groups of technologies, their advantages, and limitations were examined, and the future research directions to produce the safe drinking water were identified.
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Affiliation(s)
- Shakhawat Chowdhury
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
- Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
| | - Tariq M F Koyappathody
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Tanju Karanfil
- Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC, USA
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19
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Ceballos M, Cedrún-Morales M, Rodríguez-Pérez M, Funes-Hernando S, Vila-Fungueiriño JM, Zampini G, Navarro Poupard MF, Polo E, Del Pino P, Pelaz B. High-yield halide-assisted synthesis of metal-organic framework UiO-based nanocarriers. Nanoscale 2022; 14:6789-6801. [PMID: 35467684 PMCID: PMC9109712 DOI: 10.1039/d1nr08305h] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
The synthesis of nanosized metal-organic frameworks (NMOFs) is requisite for their application as injectable drug delivery systems (DDSs) and other biorelevant purposes. Herein, we have critically examined the role of different synthetic parameters leading to the production of UiO-66 crystals smaller than 100 nm. Of note, we demonstrate the co-modulator role conferred by halide ions, not only to produce NMOFs with precise morphology and size, but also to significantly improve the reaction yield. The resulting NMOFs are highly crystalline and exhibit sustained colloidal stability in different biologically relevant media. As a proof of concept, these NMOFs were loaded with Rhodamine 6G (R6G), which remained trapped in most common biologically relevant media. When incubated with living mammalian cells, the R6G-loaded NMOFs were efficiently internalized and did not impair cell viability even at relatively high doses.
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Affiliation(s)
- Manuel Ceballos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Manuela Cedrún-Morales
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Manuel Rodríguez-Pérez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Samuel Funes-Hernando
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José Manuel Vila-Fungueiriño
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Giulia Zampini
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Maria F Navarro Poupard
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ester Polo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Bioquímica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Pablo Del Pino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Beatriz Pelaz
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Yoon J, Shin M, Lim J, Lee JY, Choi JW. Recent Advances in MXene Nanocomposite-Based Biosensors. Biosensors (Basel) 2020; 10:E185. [PMID: 33233574 PMCID: PMC7699737 DOI: 10.3390/bios10110185] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/15/2020] [Accepted: 11/18/2020] [Indexed: 12/19/2022]
Abstract
The development of advanced biosensors with high sensitivity and selectivity is one of the most demanded concerns in the field of biosensors. To meet this requirement, up until now, numerous nanomaterials have been introduced to develop biosensors for achieving high sensitivity and selectivity. Among the latest nanomaterials attracting attention, MXene is one of the best materials for the development of biosensors because of its various superior properties. MXenes are two-dimensional inorganic compounds with few atomic layers that possess excellent characteristics including high conductivity and superior fluorescent, optical, and plasmonic properties. In this review, advanced biosensors developed on the basis of the MXene nanocomposite are discussed with the selective overview of recently reported studies. For this, introduction of the MXene including the definition, synthesis methods, and its properties are discussed. Next, MXene-based electrochemical biosensors and MXene-based fluorescent/optical biosensors are provided, which are developed on the basis of the exceptional properties of the MXene nanocomposite. This review will suggest the direction for use of the Mxene nanocomposite to develop advanced biosensors with high sensitivity and selectivity.
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Affiliation(s)
- Jinho Yoon
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea; (J.Y.); (M.S.); (J.L.)
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Minkyu Shin
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea; (J.Y.); (M.S.); (J.L.)
| | - Joungpyo Lim
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea; (J.Y.); (M.S.); (J.L.)
| | - Ji-Young Lee
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea; (J.Y.); (M.S.); (J.L.)
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea; (J.Y.); (M.S.); (J.L.)
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21
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Sandoval-Herazo LC, Alvarado-Lassman A, López-Méndez MC, Martínez-Sibaja A, Aguilar-Lasserre AA, Zamora-Castro S, Marín-Muñiz JL. Effects of Ornamental Plant Density and Mineral/Plastic Media on the Removal of Domestic Wastewater Pollutants by Home Wetlands Technology. Molecules 2020; 25:molecules25225273. [PMID: 33198195 PMCID: PMC7696903 DOI: 10.3390/molecules25225273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 09/11/2020] [Revised: 10/09/2020] [Accepted: 11/06/2020] [Indexed: 11/16/2022] Open
Abstract
Wastewater treatment (WWT) is a priority around the world; conventional treatments are not widely used in rural areas owing to the high operating and maintenance costs. In Mexico, for instance, only 40% of wastewater is treated. One sustainable option for WWT is through the use of constructed wetlands (CWs) technology, which may remove pollutants using cells filled with porous material and vegetation that works as a natural filter. Knowing the optimal material and density of plants used per square meter in CWs would allow improving their WWT effect. In this study, the effect of material media (plastic/mineral) and plant density on the removal of organic/inorganic pollutants was evaluated. Low (three plants), medium (six plants) and high (nine plants) densities were compared in a surface area of 0.3 m2 of ornamental plants (Alpinia purpurata, Canna hybrids and Hedychium coronarium) used in polycultures at the mesocosm level of household wetlands, planted on the two different substrates. Regarding the removal of contaminants, no significant differences were found between substrates (p ≥ 0.05), indicating the use of plastic residues (reusable) is an economical option compared to typical mineral materials. However, differences (p = 0.001) in removal of pollutants were found between different plant densities. For both substrates, the high density planted CWs were able to remove COD in a range of 86–90%, PO4-P 22–33%, NH4-N in 84–90%, NO3-N 25–28% and NO2-N 38–42%. At medium density, removals of 79–81%, 26–32, 80–82%, 24–26%, and 39–41%, were observed, whereas in CWs with low density, the detected removals were 65–68%, 20–26%, 79–80%, 24–26% and 31–40%, respectively. These results revealed that higher COD and ammonia were removed at high plant density than at medium or low densities. Other pollutants were removed similarly in all plant densities (22–42%), indicating the necessity of hybrid CWs to increase the elimination of PO4-P, NO3-N and NO2-N. Moreover, high density favored 10 to 20% more the removal of pollutants than other plant densities. In addition, in cells with high density of plants and smaller planting distance, the development of new plant shoots was limited. Thus, it is suggested that the appropriate distance for this type of polyculture plants should be from 40 to 50 cm in expansion to real-scale systems in order to take advantage of the harvesting of species in these and allow species of greater foliage, favoring its growth and new shoots with the appropriate distance to compensate, in the short time, the removal of nutrients.
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Affiliation(s)
- Luis Carlos Sandoval-Herazo
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
- División de Estudios Posgrado e Investigación, Tecnológico Nacional de México/Instituto Tecnológico Superior de Misantla, Misantla, Veracruz, C.P. Misantla 93821, Veracruz, Mexico;
| | - Alejandro Alvarado-Lassman
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - María Cristina López-Méndez
- División de Estudios Posgrado e Investigación, Tecnológico Nacional de México/Instituto Tecnológico Superior de Misantla, Misantla, Veracruz, C.P. Misantla 93821, Veracruz, Mexico;
| | - Albino Martínez-Sibaja
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - Alberto A. Aguilar-Lasserre
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - Sergio Zamora-Castro
- Faculty of Engineering, Construction and Habitat, Universidad Veracruzana Bv. Adolfo Ruíz Cortines 455, Costa Verde, C.P. Boca del Rio 94294, Veracruz, Mexico;
| | - José Luis Marín-Muñiz
- Sustainable Regional Development Academy, El Colegio de Veracruz, Xalapa 91000, Veracruz, Mexico
- Correspondence:
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Lin B, Tang J, Wang Y, Wang H, Zuo Y. Study on Synergistic Corrosion Inhibition Effect between Calcium Lignosulfonate (CLS) and Inorganic Inhibitors on Q235 Carbon Steel in Alkaline Environment with Cl . Molecules 2020; 25:E4200. [PMID: 32937777 PMCID: PMC7570617 DOI: 10.3390/molecules25184200] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 11/19/2022] Open
Abstract
The synergistic corrosion inhibition effect between calcium lignosulfonate (CLS) and three kinds of inorganic inhibitors (Na2MoO4, Na2SnO3, and NaWO4) with various molar ratios on Q235 carbon steel in alkaline solution (pH 11.5) with 0.02 mol/L NaCl was investigated by cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, linear polarization, scanning electron microscopy, and X-ray photoelectron spectroscopy. Molybdate and stannate in hybrid inhibitor could promote the passivation of steel and form a complex film, which could suppress the corrosion effectively. Moreover, the insoluble metal oxides in the complex film formed by three kinds of inorganic inhibitor could help the adsorption of CLS onto the steel surface. The CLS molecules could adsorb onto the steel surface and metal oxides to form an adsorption film to protect the steel from corrosion. A three-layer protection film formed by a hybrid inhibitor, including passivation film, deposition film, and adsorption film, would effectively inhibit the corrosion reactions on the steel surface. The CLS compound with molybdate with the ratio of 2:3 shows the best inhibition effect on both general corrosion and localized corrosion.
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Affiliation(s)
- Bing Lin
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (B.L.); (Y.W.)
| | - Junlei Tang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (B.L.); (Y.W.)
| | - Yingying Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; (B.L.); (Y.W.)
| | - Hu Wang
- School of Material Science and Engineering, Southwest Petroleum University, Chengdu 610500, China;
| | - Yu Zuo
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
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Wang SZ, Wang ZK, Gong JS, Qin J, Dong TT, Xu ZH, Shi JS. Improving the biocatalytic performance of co-immobilized cells harboring nitrilase via addition of silica and calcium carbonate. Bioprocess Biosyst Eng 2020; 43:2201-2207. [PMID: 32661565 DOI: 10.1007/s00449-020-02405-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
To improve nicotinic acid (NA) yield and meet industrial application requirements of sodium alginate-polyvinyl alcohol (SA-PVA) immobilized cells of Pseudomonas putida mut-D3 harboring nitrilase, inorganic materials were added to the SA-PVA immobilized cells to improve mechanical strength and mass transfer performance. The concentrations of inorganic materials were optimized to be 2.0% silica and 0.6% CaCO3. The optimal pH and temperature for SA-PVA immobilized cells and composite immobilized cells were both 8.0 and 45 °C, respectively. The half-lives of composite immobilized cells were 271.48, 150.92, 92.92 and 33.12 h, which were 1.40-, 1.35-, 1.22- and 1.63-fold compared to SA-PVA immobilized cells, respectively. The storage stability of the composite immobilized cells was slightly increased. The composite immobilized cells could convert 14 batches of 3-cyanopyridine with feeding concentration of 250 mM and accumulate 418 g ·L-1 nicotinic acid, while the SA-PVA immobilized cells accumulated 346 g L-1 nicotinic acid.
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Affiliation(s)
- Shun-Zhi Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zi-Kai Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Gong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Jiufu Qin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Ting-Ting Dong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zheng-Hong Xu
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Shi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
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24
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Lim AR. Thermodynamic, Physical, and Structural Characteristics in Layered Hybrid Type (C 2H 5NH 3) 2MCl 4 ( M = 59Co, 63Cu, 65Zn, and 113Cd) Crystals. Molecules 2020; 25:E1812. [PMID: 32326504 PMCID: PMC7221673 DOI: 10.3390/molecules25081812] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/08/2020] [Accepted: 04/14/2020] [Indexed: 11/16/2022] Open
Abstract
The thermal, physical, and molecular dynamics of layered hybrid type (C2H5NH3)2MCl4 (M = 59Co, 63Cu, 65Zn, and 113Cd) crystals were investigated by thermogravimetric analysis (TGA) and magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy. The temperatures of the onset of partial thermal decomposition were found to depend on the identity of M. In addition, the Bloembergen-Purcell-Pound curves for the 1H spin-lattice relaxation time T1ρ in the rotating frames of CH3CH2 and NH3, and for the 13C T1ρ of CH3 and CH2 were shown to exhibit minima as a function of the inverse temperature. These results confirmed the rotational motion of 1H and 13C in the C2H5NH3 cation. Finally, the T1ρ values and activation energies Ea obtained from the 1H measurements for the H‒Cl···M (M = Zn and Cd) bond in the absence of paramagnetic ions were larger than those obtained for the H‒Cl···M (M = Co and Cu) bond in the presence of paramagnetic ions. Moreover, the Ea value for 13C, which is distant from the M ions, was found to decrease upon increasing the mass of the M ion, unlike in the case of the Ea values for 1H.
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Affiliation(s)
- Ae Ran Lim
- Analytical Laboratory of Advanced Ferroelectric Crystals and Department of Science Education, Jeonju University, Jeonju 55069, Korea
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25
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Dionisio KL, Phillips K, Price PS, Grulke CM, Williams A, Biryol D, Hong T, Isaacs KK. The Chemical and Products Database, a resource for exposure-relevant data on chemicals in consumer products. Sci Data 2018; 5:180125. [PMID: 29989593 PMCID: PMC6038847 DOI: 10.1038/sdata.2018.125] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [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: 10/16/2017] [Accepted: 04/30/2018] [Indexed: 01/29/2023] Open
Abstract
Quantitative data on product chemical composition is a necessary parameter for characterizing near-field exposure. This data set comprises reported and predicted information on more than 75,000 chemicals and more than 15,000 consumer products. The data's primary intended use is for exposure, risk, and safety assessments. The data set includes specific products with quantitative or qualitative ingredient information, which has been publicly disclosed through material safety data sheets (MSDS) and ingredient lists. A single product category from a refined and harmonized set of categories has been assigned to each product. The data set also contains information on the functional role of chemicals in products, which can inform predictions of the concentrations in which they occur. These data will be useful to exposure and risk assessors evaluating chemical and product safety.
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Affiliation(s)
- Kathie L. Dionisio
- U.S. Environmental Protection Agency, National Exposure Research Laboratory, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Katherine Phillips
- U.S. Environmental Protection Agency, National Exposure Research Laboratory, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Paul S. Price
- U.S. Environmental Protection Agency, National Exposure Research Laboratory, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Christopher M. Grulke
- U.S. Environmental Protection Agency, National Center for Computational Toxicology, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Antony Williams
- U.S. Environmental Protection Agency, National Center for Computational Toxicology, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Derya Biryol
- U.S. Environmental Protection Agency, National Exposure Research Laboratory, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Tao Hong
- ICF International, 2635 Meridian Pkwy #200, Durham, NC 27713, USA
| | - Kristin K. Isaacs
- U.S. Environmental Protection Agency, National Exposure Research Laboratory, 109 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
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Abstract
There are, in the main, two principal methods of biological research into the problem of causation of schizophrenia. In the first, or direct method, studies are made of the body fluids and of the metabolism of schizophrenics in the hope of turning up some toxic factor or error of metabolism. Such studies are currently under way in a number of centres and, although many claims as to positive findings have been made, none of these has as yet been substantiated and the majority have actually been refuted by subsequent analysis. These studies have been directed by two main hypotheses of the causation of the illness described in a previous communication (14). Now it is clear that one great difficulty entailed in using this approach is that our basic knowledge of neuro-chemistry and neuropharmacology is still extremely limited. The very complexity of the neurochemical processes of the brain would seem to offer a large number of possible loci of metabolic disturbance, any of which might be responsible for the onset of schizophrenia. Thus, we can say that the probable results of all such investigations at present will be purely negative, i.e. we will discover that the given metabolism of injected adrenaline, serotonin, etc., is normal in the illness. Thus, the second, or indirect, method becomes increasingly important. This consists of two parts. The first is implied merely by the general statement that the advance of neurochemistry and neuropharmacology may disclose other areas of function in which specific hypotheses of the causation of the illness may be constructed. The second consists of a detailed study of the precise mode of action of known psychotomimetic agents. Knowledge of the mode of action of mescaline and LSD-25 in detail would pinpoint areas for research in the metabolism of schizophrenics. Unfortunately, however, very little seems to be known at present of the mode of action of these drugs. Most of the work that has been done has been carried out on LSD-25 (see e.g. the annotated bibliography put out by Sandoz Inc., Hanover, New Jersey, 1958). However, the important field of the structure-activity relationships (SAR) of mescaline seems to have been strangely neglected. The research programme here would include the synthesis of a number of analogues of mescaline according to systematic principles to determine the role the details of its molecular structure play in the mode of action. These analogues would be subjected to a number of tests—psychopharmacological, neurophysiological and neurochemical—comparison between the results of which would give important information not only of the SAR of mescaline but also of the details of its mode of action and the interrelationships between behavioural, neurophysiological and neurochemical factors involved that would help us explain the former effects in terms of the latter, which reduction is the main aim of biological science. The present paper reviews the little that is known at present about the SAR of mescaline and then reports some new studies in the psychopharmacology of this field.
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Qiu J, Chen G, Xu J, Luo E, Liu Y, Wang F, Zhou H, Liu Y, Zhu F, Ouyang G. In vivo tracing of organochloride and organophosphorus pesticides in different organs of hydroponically grown malabar spinach (Basella alba L.). J Hazard Mater 2016; 316:52-59. [PMID: 27209519 DOI: 10.1016/j.jhazmat.2016.05.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 05/03/2016] [Accepted: 05/08/2016] [Indexed: 06/05/2023]
Abstract
An in vivo uptake and elimination tracing study based on solid phase microextraction (SPME) was conducted to investigate the accumulation, persistence and distribution of organochloride pesticides (OCPs) and organophosphorus pesticides (OPPs) in malabar spinach (Basella alba L.) plants. Uptake and elimination of the pesticides were traced in leaves, stems and roots of living malabar spinach plants. Root concentration factor (RCF), distribution concentration factor (DCF) and transpiration stream concentration factor (TSCF) were calculated based on the in vivo tracing data. The tracing data showed that the OCPs were much more accumulative and persistent than the OPPs in roots, while they were similarly accumulative and persistent in leaves and stems. RCF values of the OPPs or OCPs were likely to increase with the increase in LogKow values except fenthion. Obtained DCF values indicated that OPPs and OCPs were more accumulative in the organs containing more lipids. TSCF values showed that the translocation of OPPs and OCPs from roots to foliage was firstly dependent on the hydrophobicity of the compounds, but also significantly affected by the water solubility. This is the first study of generating RCF, DCF and TSCF data in living plants by in vivo sampling method, which provides a foundation to promote the application of in vivo SPME and improve understanding of contaminant behaviors in living plants.
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Affiliation(s)
- Junlang Qiu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Guosheng Chen
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jianqiao Xu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Erlun Luo
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yan Liu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Fuxin Wang
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hong Zhou
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yuan Liu
- Department of Food Science and Technology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Fang Zhu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Gangfeng Ouyang
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
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28
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Du X, Qu F, Liang H, Li K, Chang H, Li G. Cake properties in ultrafiltration of TiO2 fine particles combined with HA: in situ measurement of cake thickness by fluid dynamic gauging and CFD calculation of imposed shear stress for cake controlling. Environ Sci Pollut Res Int 2016; 23:8806-8818. [PMID: 26810663 DOI: 10.1007/s11356-015-5984-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
In this study, the cake buildup of TiO2 fine particles in the presence of humid acid (HA) and cake layer controlling during ultrafiltration (UF) were investigated. Specifically, we measured the cake thickness using fluid dynamic gauging (FDG) method under various solution conditions, including TiO2 concentration (0.1-0.5 g/L), HA concentration (0-5 mg/L, total organic carbon (TOC)), and pH values (e.g., 4, 6 and 10), and calculated the shear stress distribution induced by stirring using computational fluid dynamics (CFD) to analyze the cake layer controlling conditions, including the operation flux (50-200 L m(-2) h(-1)) and TiO2 concentration (0.1-0.5 g/L). It was found that lower TiO2/HA concentration ratio could lead to exceedingly severe membrane fouling because of the formation of a relatively denser cake layer by filling the voids of cake layer with HA, and pH was essential for cake layer formation owing to the net repulsion between particles. Additionally, it was observed that shear stress was rewarding for mitigating cake growth under lower operation flux as a result of sufficient back-transport forces, and exhibited an excellent performance on cake layer controlling in lower TiO2 concentrations due to slight interaction forces on the vicinity of membrane.
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Affiliation(s)
- Xing Du
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, People's Republic of China
| | - Fangshu Qu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, People's Republic of China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, People's Republic of China.
| | - Kai Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, 13 Yanta Road, Xi'an, 710055, People's Republic of China
| | - Haiqing Chang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, People's Republic of China
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, People's Republic of China
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29
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Yamamura H, Kimura K, Higuchi K, Watanabe Y, Ding Q, Hafuka A. Tracking inorganic foulants irreversibly accumulated on low-pressure membranes for treating surface water. Water Res 2015; 87:218-24. [PMID: 26414890 DOI: 10.1016/j.watres.2015.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 09/05/2015] [Accepted: 09/10/2015] [Indexed: 05/26/2023]
Abstract
While low-pressure membrane filtration processes (i.e., microfiltration and ultrafiltration) can offer precise filtration than sand filtration, they pose the problem of reduced efficiency due to membrane fouling. Although many studies have examined membrane fouling by organic substances, there is still not enough data available concerning membrane fouling by inorganic substances. The present research investigated changes in the amounts of inorganic components deposited on the surface of membrane filters over time using membrane specimens sampled thirteen times at arbitrary time intervals during pilot testing in order to determine the mechanism by which irreversible fouling by inorganic substances progresses. The experiments showed that the inorganic components that primarily contribute to irreversible fouling vary as filtration continues. It was discovered that, in the initial stage of operation, the main membrane-fouling substance was iron, whereas the primary membrane-fouling substances when operation finished were manganese, calcium, and silica. The amount of iron accumulated on the membrane increased up to the thirtieth day of operation, after which it reached a steady state. After the accumulation of iron became static, subsequent accumulation of manganese was observed. The fact that the removal rates of these inorganic components also increased gradually shows that the size of the exclusion pores of the membrane filter narrows as operation continues. Studying particle size distributions of inorganic components contained in source water revealed that while many iron particles are approximately the same size as membrane pores, the fraction of manganese particles slightly smaller than the pores in diameter was large. From these results, it is surmised that iron particles approximately the same size as the pores block them soon after the start of operation, and as the membrane pores narrow with the development of fouling, they become further blocked by manganese particles approximately the same size as the narrowed pores. Calcium and silica are assumed to accumulate on the membrane due to their cross-linking action and/or complex formation with organic substances such as humic compounds. The present research is the first to clearly show that the inorganic components that contribute to membrane fouling differ according to the stage of membrane fouling progression; the information obtained by this research should enable chemical cleaning or operational control in accordance with the stage of membrane fouling progression.
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Affiliation(s)
- Hiroshi Yamamura
- Department of Integrated Science and Engineering for Sustainable Society, Faculty of Science and Engineering, Chuo University, 112-8551 1-13-27, Kasuga, Bunkyo-ku, Tokyo, Japan.
| | - Katsuki Kimura
- Division of Built Environment, Faculty of Engineering, Hokkaido University, 060-8628, N13W8, Kita-ku, Sapporo, Japan.
| | - Kumiko Higuchi
- Division of Built Environment, Faculty of Engineering, Hokkaido University, 060-8628, N13W8, Kita-ku, Sapporo, Japan
| | - Yoshimasa Watanabe
- Research and Development Initiatives, Chuo University, 112-8551 1-13-27, Kasuga, Bunkyo-ku, Tokyo, Japan.
| | - Qing Ding
- Department of Integrated Science and Engineering for Sustainable Society, Faculty of Science and Engineering, Chuo University, 112-8551 1-13-27, Kasuga, Bunkyo-ku, Tokyo, Japan
| | - Akira Hafuka
- Department of Integrated Science and Engineering for Sustainable Society, Faculty of Science and Engineering, Chuo University, 112-8551 1-13-27, Kasuga, Bunkyo-ku, Tokyo, Japan
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Chen ML, Sun Y, Huo CB, Liu C, Wang JH. Akaganeite decorated graphene oxide composite for arsenic adsorption/removal and its proconcentration at ultra-trace level. Chemosphere 2015; 130:52-58. [PMID: 25800270 DOI: 10.1016/j.chemosphere.2015.02.046] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 01/13/2015] [Accepted: 02/23/2015] [Indexed: 06/04/2023]
Abstract
Carboxylic graphene oxide (GO-COOH) is decorated with akaganeite (β-FeOOH) to produce a β-FeOOH@GO-COOH nanocomposite. The nanocomposite acts as an efficient adsorption medium for the uptake of arsenite and arsenate within a wide range of pH 3-10, providing high adsorption capacities of 77.5mgg(-1) for As(III) and 45.7mgg(-1) for As(V), respectively. Adsorption efficiencies of 100% and 97% are achieved for 5 successive operation cycles for the removal of 100μgL(-1) As(V) and As(III) in 5 fresh portions of aqueous solution (1.0mL for each) with 3mg nanocomposite. After 20 successive adsorption cycles, removal efficiency of >80% is still maintained for both arsenate and arsenite. Further, a removal efficiency of >90% is obtained for 1000μgL(-1) As(V) with 3mg β-FeOOH@GO-COOH for 5 successive adsorption cycles, and the presence of 2000-fold SO4(2-), NO3(-), Cl(-) and Mg(2+) pose no interfering effect. β-FeOOH@GO-COOH also provides a promising medium for the preconcentration of ultra-trace inorganic arsenic. 1mg of nanocomposite is used to adsorb 0.1-3.00μgL(-1) As(V) in 4.0mL solution, and the retained arsenate is recovered by 400μL of NaOH (2molL(-1), containing 2.0% NaBH4), followed by detection with atomic fluorescence spectrometry. A detection limit of 29ngL(-1) is obtained for arsenate. This procedure is validated by analyzing arsenic in a certified reference material (GBW 09101b) and further applied for arsenic determination in water samples.
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Affiliation(s)
- Ming-Li Chen
- Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Yan Sun
- Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Chun-Bao Huo
- Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Chen Liu
- Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
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Wang F, Yuan T, Gu SK, Wang ZY. [Effects of Organic and Inorganic Slow-Release Compound Fertilizer on Different Soils Microbial Community Structure]. Huan Jing Ke Xue 2015; 36:1461-1467. [PMID: 26164927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
As a new style fertilizer, slow-control release fertilizer had been an important subject in recent years, but few researches were about soil microbial community structure diversity. Phospholipid fatty acid method was used to determined the microbial community structure diversity of acid soil and slight alkaline soil applied with slow-release compound fertilizer (SRF), chemical fertilizer (CF) and common compound fertilizer (CCF) at the 10th, 30th, 60th and 90th day under the constant temperature incubation condition. Results indicated that various bacteria (i. e 13:0, i14:0,14:0, i15:0, a15:0, i16:0, 16:12OH, 16:1w5c,16:0, i17:0, a17:0, cy17:0, 17:02OH, i18:0, 18:0 and cy19:0w8c), two actinomycetes (10Me17:0 and 10Me18:0) and only one fungus (18:1 w9c) were detected in two soils after applying slow-release compound fertilizer and other fertilizers during the whole incubation period. SRF could significantly increase the fungi PLFA content by 8.3% and 6.8% at the early stage (the 10th day and 30th day) compared with CF, as well as significantly increase by 22.7% and 17.1% at the late stage (the 60th day and 90th day) compared with CCF in acid soil. SRF significantly increased bacteria, fungi and gram positive bacteria compared with CF and CCF in incubation period (except at the 30th day) in slight alkaline soil. SRF could significantly improve the ratio of normal saturated fatty acid and monounsaturated fatty acid at the 30th day and 90th days in acid soil compared with no fertilizer (CK), CF and CCF, while as to slight alkaline soil, SRF was significantly greater than that of CK, CF and CCF only at the 60th day. SRF could significantly decrease the ratio of iso PLFA and anteiso PLFA in acid soil (in 30-90 days) and slight alkaline soil (in 10-60 days). For two soils PLFA varieties, contents and ratios of microbial community, slow-release compound fertilizer increased soil microbial PLFA varieties and contents, and decreased the influence to microbial survival environment, especially for the acid soil. Through the research of slow-release compound fertilizer on soil microbial community structure diversity, it could provide a scientific basis for widely application of slow-release compound fertilizer in agricultural production.
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Pfreundschuh M, Alsteens D, Hilbert M, Steinmetz MO, Müller DJ. Localizing chemical groups while imaging single native proteins by high-resolution atomic force microscopy. Nano Lett 2014; 14:2957-2964. [PMID: 24766578 DOI: 10.1021/nl5012905] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Simultaneous high-resolution imaging and localization of chemical interaction sites on single native proteins is a pertinent biophysical, biochemical, and nanotechnological challenge. Such structural mapping and characterization of binding sites is of importance in understanding how proteins interact with their environment and in manipulating such interactions in a plethora of biotechnological applications. Thus far, this challenge remains to be tackled. Here, we introduce force-distance curve-based atomic force microscopy (FD-based AFM) for the high-resolution imaging of SAS-6, a protein that self-assembles into cartwheel-like structures. Using functionalized AFM tips bearing Ni(2+)-N-nitrilotriacetate groups, we locate specific interaction sites on SAS-6 at nanometer resolution and quantify the binding strength of the Ni(2+)-NTA groups to histidine residues. The FD-based AFM approach can readily be applied to image any other native protein and to locate and structurally map histidine residues. Moreover, the surface chemistry used to functionalize the AFM tip can be modified to map other chemical interaction sites.
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Affiliation(s)
- Moritz Pfreundschuh
- Department of Biosystems Science and Engineering, ETH Zurich , Mattenstrasse 26, 4058 Basel, Switzerland
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Fleming DA, Woskie SR, Jones JH, Silver SR, Luo L, Bertke SJ. Retrospective assessment of exposure to chemicals for a microelectronics and business machine manufacturing facility. J Occup Environ Hyg 2014; 11:292-305. [PMID: 24224613 PMCID: PMC4517462 DOI: 10.1080/15459624.2013.862591] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A retrospective exposure assessment was performed for use in a health outcomes study of a facility manufacturing circuit boards, business machines, and other equipment during the years 1969-2002. A matrix was developed identifying chemical use by department-year based on company-provided information. Use of six chemical agents (fiberglass, lead, methylene chloride, methyl chloroform, perchloroethylene, and trichloroethylene) and six chemical classes (acid-base, aromatic hydrocarbons, chlorinated hydrocarbons, other hydrocarbons, chlorofluorocarbons, and metals), and general (including unspecified) chemicals was identified. The matrix also contained an assignment for each department-year categorizing the potential for use of chemicals as negligible, intermittent/incidental, or routine. These department-based exposure matrix data were combined with work history data to provide duration of potential chemical use for workers. Negligible, intermittent/incidental or routine extent-of-chemical-use categories comprised 42.6%, 39.4%, and 17.9%, respectively, of total person-years of employment. Cumulative exposure scores were also developed, representing a relative measure of the cumulative extent of potential exposure to the six chemical agents, six chemical classes, and general (including unspecified) chemicals. Additionally, the study period was divided into manufacturing eras showing trends in chemical use, and showing that process use of trichloroethylene and methylene chloride ended in the mid-1980s and the mid-1990s, respectively. This approach may be useful in other assessments addressing a variety of chemicals, and with data constraints common to retrospective chemical exposure studies.
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Affiliation(s)
- Donald A. Fleming
- Division of Surveillance, Hazard Evaluations and Field Studies, Industry-wide Studies Branch, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - Susan R. Woskie
- Department of Work Environment, University of Massachusetts Lowell, Lowell, Massachusetts
| | | | - Sharon R. Silver
- Division of Surveillance, Hazard Evaluations and Field Studies, Industry-wide Studies Branch, National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | | | - Stephen J. Bertke
- Division of Surveillance, Hazard Evaluations and Field Studies, Industry-wide Studies Branch, National Institute for Occupational Safety and Health, Cincinnati, Ohio
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Singh K. Chemicals: friends and foes. Rev Environ Health 2014; 29:43-44. [PMID: 24622781 DOI: 10.1515/reveh-2014-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
There are many chemicals used in and around homes and workplaces that can result in accidents. Can it be said that the insecticides, drugs, polychlorinated biphenyls, DDT, asbestos, cleansers, cosmetics, and other chemicals are worth the price paid in terms of accidental poisonings? That is for the consumer to decide. Generally, it is the misuse of these chemicals that often leads to tragedy. Chemicals can be dangerous, but they can be advantageous when used with care.
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You S, Tang C, Yu C, Wang X, Zhang J, Han J, Gan Y, Ren N. Forward osmosis with a novel thin-film inorganic membrane. Environ Sci Technol 2013; 47:8733-8742. [PMID: 23829428 DOI: 10.1021/es401555x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Forward osmosis (FO) represents a new promising membrane technology for liquid separation driven by the osmotic pressure of aqueous solution. Organic polymeric FO membranes are subject to severe internal concentration polarization due to asymmetric membrane structure, and low stability due to inherent chemical composition. To address these limitations, this study focuses on the development of a new kind of thin-film inorganic (TFI) membrane made of microporous silica xerogels immobilized onto a stainless steel mesh (SSM) substrate. The FO performances of the TFI membrane were evaluated upon a lab-scale cell-type FO reactor using deionized water as feed solution and sodium chloride (NaCl) as draw solution. The results demonstrated that the TFI membrane could achieve transmembrane water flux of 60.3 L m(-2) h(-1) driven by 2.0 mol L(-1) NaCl draw solution at ambient temperature. Meanwhile, its specific solute flux, i.e. the solute flux normalized by the water flux (0.19 g L(-1)), was 58.7% lower than that obained for a commercial cellulose triacetate (CTA) membrane (0.46 g L(-1)). The quasi-symmetry thin-film microporous structure of the silica membrane is responsible for low-level internal concentration polarization, and thus enhanced water flux during FO process. Moreover, the TFI membrne demonstrated a substantially improved stability in terms of mechanical strength, and resistance to thermal and chemical stimulation. This study not only provides a new method for fabricating quasi-symmetry thin-film inorganic silica membrane, but also suggests an effective strategy using this alternative membrane to achieve improved FO performances for scale-up applications.
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Affiliation(s)
- Shijie You
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology (HIT) , Harbin 150090, PR China.
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Abstract
We present a microfluidic approach for the controlled encapsulation of individual gas bubbles in micrometer-diameter aqueous droplets with high gas volume fractions and demonstrate this approach to making a liquid shell, which serves as a template for the synthesis of hollow inorganic particles. In particular, we find that an increase in the viscosity of the aqueous phase facilitates the encapsulation of individual gas bubbles in an aqueous droplet and allows control of the thickness of a thin aqueous shell. Furthermore, because such droplets contain a finite amount of water, uncontrolled hydrolysis reactions between reactive inorganic precursors and bulk water can be avoided. We demonstrate this approach by introducing reactive inorganic precursors, such as silane and titanium butoxide, for sol-gel reactions downstream from the formation of the bubble in a droplet and consequently fabricate hollow particles of silica or titania in one continuous flow process. These approaches provide a route to controlling double-emulsion-type gas-liquid microstructures and offer a new fabrication method for thin-shell-covered microbubbles and hollow microparticles.
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Affiliation(s)
- Jiandi Wan
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States.
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Dupont C, Nocquet T, Da Costa JA, Verne-Tournon C. Kinetic modelling of steam gasification of various woody biomass chars: influence of inorganic elements. Bioresour Technol 2011; 102:9743-9748. [PMID: 21862327 DOI: 10.1016/j.biortech.2011.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Revised: 07/06/2011] [Accepted: 07/08/2011] [Indexed: 05/31/2023]
Abstract
A study was performed on the influence of wood variability on char steam gasification kinetics. Isothermal experiments were carried out in a thermobalance in chemical regime on various wood chars produced under the same conditions. The samples exhibited large differences of average reaction rate. These differences were linked neither with the biomass species nor age and may be related to the biomass inorganic elements. A modelling approach was developed to give a quantitative insight to these observations. The grain model was used on one biomass of reference for temperatures between 750 and 900 °C and steam partial pressures between 0 and 0.27 bar. The model was applied to the other samples through the addition of an integral parameter specific to each sample. A satisfactory correlation was found between this parameter and the ratio potassium/silicium. This result highlighted the catalytic effect of potassium and inhibitor effect of silicium on the reaction.
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Affiliation(s)
- Capucine Dupont
- Commissariat à l'Energie Atomique et aux Energies Alternatives, 17 rue des Martyrs, 38054 Grenoble cedex 09, France.
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Kim YK, Kim SG, Oh JS, Jin SC, Son JS, Kim SY, Lim SY. Analysis of the inorganic component of autogenous tooth bone graft material. J Nanosci Nanotechnol 2011; 11:7442-5. [PMID: 22103215 DOI: 10.1166/jnn.2011.4857] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
This study was performed to identify the calcium phosphate minerals, chemical element and Ca/P ratio and to examine the surface structure of autogenous tooth bone grafting material (AutoBT) which recently developed and applied clinically as a bone graft materials. The analytical results showed that AutoBT is composed of low-crystalline hydroxyapatite (HA) and possibly other calcium phosphate minerals, which is similar to the minerals of human bone tissues. And the dental crown portion was composed of high-crystalline calcium phosphate minerals (mainly HA) with higher Ca/P ratio while the root portion was mainly composed of low-crystalline calcium phosphates with relatively low Ca/P ratio.
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Affiliation(s)
- Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, School of Dentistry, Seoul National University, Seongnam 463-707, Republic of Korea
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Zhu J, Pigna M, Cozzolino V, Caporale AG, Violante A. Sorption of arsenite and arsenate on ferrihydrite: effect of organic and inorganic ligands. J Hazard Mater 2011; 189:564-571. [PMID: 21419571 DOI: 10.1016/j.jhazmat.2011.02.071] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 02/21/2011] [Accepted: 02/22/2011] [Indexed: 05/30/2023]
Abstract
We studied the sorption of As(III) and As(V) onto ferrihydrite as affected by pH, nature and concentration of organic [oxalic (OX), malic (MAL), tartaric (TAR), and citric (CIT) acid] and inorganic [phosphate (PO(4)), sulphate (SO(4)), selenate (SeO(4)) and selenite (SeO(3))] ligands, and the sequence of anion addition. The sorption capacity of As(III) was greater than that of As(V) in the range of pH 4.0-11.0. The capability of organic and inorganic ligands in preventing As sorption follows the sequence: SeO(4) ≈ SO(4) < OX < MAL ≈ TAR < CIT < SeO(3) ≪ PO(4). The efficiency of most of the competing ligands in preventing As(III) and As(V) sorption increased by decreasing pH, but PO(4) whose efficiency increased by increasing pH. In acidic systems all the competing ligands inhibited the sorption of As(III) more than As(V), but in alkaline environments As(III) and As(V) seem to be retained with the same strength on the Fe-oxide. Finally, the competing anions prevented As(III) and As(V) sorption more when added before than together or after As(III) or As(V).
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Affiliation(s)
- Jun Zhu
- Dipartimento di Scienze del Suolo, della Pianta, dell'Ambiente e delle Produzioni Animali, Università di Napoli Federico II, Via Università 100, 80055 Portici, Napoli, Italy
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Abstract
The emergence and early developments of life are considered from the point of view that contingent events that inevitably marked evolution were accompanied by deterministic driving forces governing the selection between different alternatives. Accordingly, potential energy sources are considered for their propensity to induce self-organization within the scope of the chemical approach to the origin of life. Requirements in terms of quality of energy locate thermal or photochemical activation in the atmosphere as highly likely processes for the formation of activated low-molecular weight organic compounds prone to induce biomolecular self-organization through their ability to deliver quanta of energy matching the needs of early biochemical pathways or the reproduction of self-replicating entities. These lines of reasoning suggest the existence of a direct connection between the free energy content of intermediates of early pathways and the quanta of energy delivered by available sources of energy.
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Affiliation(s)
- Laurent Boiteau
- Institut des Biomolécules Max Mousseron, UMR 5247, Universités Montpellier 1 & Montpellier 2-CNRS, CC DSBC 1706-Université Montpellier 2, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France
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Rahmanifar A, Bond JT. Food consumption, iron intake and dietary patterns of urban pregnant women from different socioeconomic populations in central Iran† ‡. Ecol Food Nutr 2010; 24:97-114. [PMID: 12284875 DOI: 10.1080/03670244.1990.9991125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Calvert KL, Trumble KP, Webster TJ, Kirkpatrick LA. Characterization of commercial rigid polyurethane foams used as bone analogs for implant testing. J Mater Sci Mater Med 2010; 21:1453-1461. [PMID: 20162325 DOI: 10.1007/s10856-010-4024-6] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Accepted: 02/01/2010] [Indexed: 05/28/2023]
Abstract
Mechanical properties and microstructure characterization of a series of graded commercial rigid polyurethane foams commonly used to mimic trabecular bone in testing orthopaedic devices is reported. Compressive testing conducted according to ASTM standard F1839-08, which requires large specimens (50.8 mm x 50.8 mm x 25.4 mm blocks) gave elastic modulus and compressive strength values ranging from 115 to 794 MPa and 4.7 to 24.7 MPa, respectively, for foams having densities of 0.240-0.641 g/cm(3). All these results were within the requirements of the specification for the corresponding grades. Compression testing using smaller specimens (7.5 mm diameter x 15 mm) typical of testing bone, gave results in good agreement with those obtained in the standard tests. Microstructural measurements showed the average pore size ranged from 125 to 234 microm for densities ranging from 0.641 to 0.159 g/cm(3), respectively. The relative modulus as a function of relative density of the foams fit well to the model of Gibson and Ashby. Cyclic testing revealed hysteresis in the lower density foams with a loading modulus statistically equivalent to that measured in monotonic testing. Shore DO durometry (hardness) measurements show good correlations to elastic modulus and compressive strength. The results suggest additional parameters to consider for the evaluation of polyurethane foams for bone analog applications.
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Affiliation(s)
- Kayla L Calvert
- School of Materials Engineering, Purdue University, West Lafayette, IN, USA.
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Sugiyama Y, Yoshida K, Abe N, Hirota A. Soybean lipoxygenase inhibitory and DPPH radical-scavenging activities of aspernolide A and butyrolactones I and II. Biosci Biotechnol Biochem 2010; 74:881-3. [PMID: 20378968 DOI: 10.1271/bbb.90918] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Aspernolide A and butyrolactones I and II showed inhibitory activities against soybean lipoxygenase. All of them also had DPPH (2,2-diphenyl-1-picrylhydrazyl) radical-scavenging activity. An analysis of the mechanism for radical scavenging allowed us to deduce that aspernolide A was converted to a quinone methide by a reaction with two molecules of the DPPH radical.
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Affiliation(s)
- Yasumasa Sugiyama
- Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka, Japan.
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Yin P, Xu Q, Qu R, Zhao G, Sun Y. Adsorption of transition metal ions from aqueous solutions onto a novel silica gel matrix inorganic-organic composite material. J Hazard Mater 2010; 173:710-716. [PMID: 19783367 DOI: 10.1016/j.jhazmat.2009.08.143] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Revised: 08/29/2009] [Accepted: 08/31/2009] [Indexed: 05/28/2023]
Abstract
A novel inorganic-organic composite material silica gel microspheres encapsulated by imidazole functionalized polystyrene (SG-PS-azo-IM) has been synthesized and characterized. This composite material was used to investigate the adsorption of Cr(III), Mn(II), Fe(III), Ni(II), Cu(II), Zn(II), Hg(II), Pb(II), Pd(II), Pt(II), Ag(I), and Au(III) from aqueous solutions, and the research results displayed that SG-PS-azo-IM has the highest adsorption capacity for Au(III). Langmuir and Freundlich isotherm models were applied to analyze the experimental data, the best interpretation for the experimental data was given by the Langmuir isotherm equation, and the maximum adsorption capacity for Au(III) is 1.700 mmol/g. The adsorption selectivity, the dynamic adsorption and desorption properties of SG-PS-azo-IM for Au(III) have also been studied. The results showed that SG-PS-azo-IM had excellent adsorption for Au(III) in four binary ions system, especially in the systems of Au(III)-Zn(II) and Au(III)-Cu(II), and almost Au(III) could be desorbed with the eluent solution of 0.5% thiourea in 1 mol/L HCl. Moreover, this novel composite material was used to preconcentrate Au(III) before its determination by flame atomic adsorption spectrometry. In the initial concentration range of 0.10-0.20 microg/mL, multiple of enrichment could reach 5.28. Thus, silica gel encapsulated by polystyrene coupling with imidazole (SG-PS-azo-IM) is favorable and useful for the removal of transition metal ions, and the high adsorption capacity makes it a good promising candidate material for Au(III) removal.
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Affiliation(s)
- Ping Yin
- School of Chemistry and Materials Science, Ludong University, No. 186 Hongqi Road, Yantai 264025, PR China.
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Punyapalakul P, Soonglerdsongpha S, Kanlayaprasit C, Ngamcharussrivichai C, Khaodhiar S. Effects of crystalline structures and surface functional groups on the adsorption of haloacetic acids by inorganic materials. J Hazard Mater 2009; 171:491-499. [PMID: 19592162 DOI: 10.1016/j.jhazmat.2009.06.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 06/06/2009] [Accepted: 06/08/2009] [Indexed: 05/28/2023]
Abstract
The effects of the crystalline structure and surface functional groups of porous inorganic materials on the adsorption of dichloroacetic acid (DCAA) were evaluated by using hexagonal mesoporous silicates (HMS), two surface functional group (3-aminopropyltriethoxy- and 3-mercaptopropyl-) modified HMSs, faujasite Y zeolite and activated alumina as adsorbents, and compared with powdered activated carbon (PAC). Selective adsorption of HAA(5) group was studied by comparing single and multiple-solute solution, including effect of common electrolytes in tap water. Adsorption capacities were significantly affected by the crystalline structure. Hydrogen bonding is suggested to be the most important attractive force. Decreasing the pH lower than the pH(zpc) increased the DCAA adsorption capacities of these adsorbents due to electrostatic interaction and hydrogen bonding caused by protonation of the hydronium ion. Adsorption capacities of HAA(5) on HMS did not relate to molecular structure of HAA(5). Common electrolytes did not affect the adsorption capacities and selectivity of HMS for HAA5, while they affected those of PAC.
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Affiliation(s)
- Patiparn Punyapalakul
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
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HARBOE A, STRANDLI O. THE NORMAL SERUM COFACTOR IN THE HAEMAGGLUTINATION INHIBITION OF INFLUENZA A2-VIRUS OF LOW ANTIBODY SENSITIVITY BY EARLY CONVALESCENT FERRET SERUM. Acta Pathologica Microbiologica Scandinavica 2009; 56:311-8. [PMID: 13952720 DOI: 10.1111/j.1699-0463.1962.tb04910.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lutich AA, Jiang G, Susha AS, Rogach AL, Stefani FD, Feldmann J. Energy transfer versus charge separation in type-II hybrid organic-inorganic nanocomposites. Nano Lett 2009; 9:2636-2640. [PMID: 19507819 DOI: 10.1021/nl900978a] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hybrid organic-inorganic nanomaterials have the potential of providing synergetic properties. Blends of semiconductor nanocrystals and conjugated polymers in particular promise novel optoelectronic properties. Effective design of tailored optoelectronic properties requires a deep understanding of the photophysics of these composite materials, which includes charge separation and Dexter and Förster energy transfer. We performed a detailed and quantitative spectroscopic investigation of a type II aligned hybrid system consisting of a blue emitting conducting polymer and CdTe nanocrystals. Although charge separation is expected from the type II alignment, we find a dominant (70% efficiency) energy transfer process. We discuss all possible de-excitation pathways for the excitons in terms of the alignment of energy levels, time scales, and physical geometry of the system. This allows us to conclude that energy transfer occurs via the Förster mechanism and provides a clear guideline for the design of novel hybrid materials.
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Affiliation(s)
- Andrey A Lutich
- Photonics and Optoelectronics Group, Physics Department and Center for Nanoscience, Ludwig-Maximilians-Universitat Munchen, Amalienstrasse 54, D-80799 Munich, Germany
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