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Deng Z, Meng X, Li C, Yao Z, Gong W. Effects of halloysite nanotubes modified by organic phosphate on the performance improvement for polypropylene. J Appl Polym Sci 2023. [DOI: 10.1002/app.53703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Zhaopeng Deng
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering and Production Engineering Department, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xin Meng
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering and Production Engineering Department, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Chenyang Li
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering and Production Engineering Department, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Zhongyang Yao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering and Production Engineering Department, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Weiguang Gong
- Research and Development Center for Sports Materials East China University of Science and Technology Shanghai China
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2
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Weber JM, Henderson BL, LaRowe DE, Goldman AD, Perl SM, Billings K, Barge LM. Testing Abiotic Reduction of NAD + Directly Mediated by Iron/Sulfur Minerals. ASTROBIOLOGY 2022; 22:25-34. [PMID: 34591607 DOI: 10.1089/ast.2021.0035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Life emerged in a geochemical context, possibly in the midst of mineral substrates. However, it is not known to what extent minerals and dissolved inorganic ions could have facilitated the evolution of biochemical reactions. Herein, we have experimentally shown that iron sulfide minerals can act as electron transfer agents for the reduction of the ubiquitous biological protein cofactor nicotinamide adenine dinucleotide (NAD+) under anaerobic prebiotic conditions, observing the NAD+/NADH redox transition by using ultraviolet-visible spectroscopy and 1H nuclear magnetic resonance. This reaction was mediated with iron sulfide minerals, which were likely abundant on early Earth in seafloor and hydrothermal settings; and the NAD+/NADH redox reaction occurred in the absence of UV light, peptide ligand(s), or dissolved mediators. To better understand this reaction, thermodynamic modeling was also performed. The ability of an iron sulfide mineral to transfer electrons to a biochemical cofactor that is found in every living cell demonstrates how geologic materials could have played a direct role in the evolution of certain cofactor-driven metabolic pathways.
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Affiliation(s)
- Jessica M Weber
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - Bryana L Henderson
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - Douglas E LaRowe
- Department of Earth Sciences, University of Southern California, Los Angeles, California, USA
| | - Aaron D Goldman
- Blue Marble Space Institute of Science, Seattle, Washington, United States of America
- Department of Biology, Oberlin College, Oberlin, Ohio, USA
| | - Scott M Perl
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - Keith Billings
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - Laura M Barge
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
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3
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Caglar B, Guner EK, Özdokur KV, Özdemir AO, İçer F, Caglar S, Doğan B, Beşer BM, Çırak Ç, Tabak A, Ersoy S. Application of BiFeO3 and Au/BiFeO3 decorated kaolinite nanocomposites as efficient photocatalyst for degradation of dye and electrocatalyst for oxygen reduction reaction. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Aghris S, Laghrib F, Koumya Y, El Kasmi S, Azaitraoui M, Farahi A, Sajieddine M, Bakasse M, Lahrich S, El Mhammedi MA. Exploration of a New Source of Sustainable Aluminosilicate Clay Minerals from Morocco: Mineralogical and Physico-Chemical Characterizations for Clear Upcoming Applications. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01950-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Albach B, Liz MV, Prola LD, Barbosa RV, Campos RB, Rampon DS. Eco-friendly mechanochemical intercalation of imidazole into kaolinite. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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The response of periodontal cells to kaolinite. Clin Oral Investig 2019; 24:1205-1215. [PMID: 31420747 DOI: 10.1007/s00784-019-02984-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 06/20/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVES The impact of kaolinite on human periodontal cells is yet unknown. The aim of the study was to assess the response of human periodontal cells to kaolinite. METHODS Human periodontal cells were treated with kaolinite at reducing concentrations from 30 to 0.0015 mg/mL and with conditioned medium, which was depleted of kaolinite. Cell viability was evaluated with a resazurin-based toxicity assay, Live-Dead staining, and MTT assay and staining. The pro-angiogenic factors vascular endothelial growth factor (VEGF) and interleukin (IL)-6 and IL-8 were quantified via ELISA in periodontal fibroblasts. L-929, a standard cell-line used for cytotoxicity studies, served as control cell line. Composition of kaolinite was verified using energy-dispersive X-ray spectroscopy. RESULTS Kaolinite in suspension but not in conditioned medium impaired cell viability dose-dependently. VEGF, IL-6, and IL-8 production was not substantially modulated by kaolinite or the conditioned medium in periodontal cells. CONCLUSION Overall, kaolinite can decrease cell viability dose-dependently while conditioned medium showed no toxic effect. No pronounced impact of kaolinite on VEGF, IL-6, and IL-8 production was observed. This study provided first insights into the impact of kaolinite on human periodontal cells thereby inferring to the basis for the evaluation of kaolinite as a carrier in regenerative dentistry. CLINICAL RELEVANCE Kaolinite, a clay mineral, is successfully used in medicine due to its favorable properties. Also, applications in conservative dentistry are described. However, the response of oral cells to kaolinite is still unclear. Here, we assessed the impact of kaolinite on human periodontal cells.
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Said AEA, Heikal MTS, Goda MN. Characterization and catalytic performance of basaltic dust as an efficient catalyst in the liquid‐phase esterification of acetic acid with
n
‐butanol. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Mohamed N. Goda
- Chemistry Department, Faculty of ScienceAssiut University Assiut Egypt
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Zhou Y, Liu Q, Xu P, Cheng H, Liu Q. Molecular Structure and Decomposition Kinetics of Kaolinite/Alkylamine Intercalation Compounds. Front Chem 2018; 6:310. [PMID: 30140671 PMCID: PMC6094960 DOI: 10.3389/fchem.2018.00310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/09/2018] [Indexed: 11/13/2022] Open
Abstract
Although the development of clay/polymer nanocomposites and their applications have attracted much attention in recent years, a thorough understanding of the structure and the decomposition mechanism of clay/polymer nanocomposites is still lacking. In this research, the intercalation of kaolinite (Kaol) with different alkylamines were investigated by X-ray diffracion (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetry and differential scanning calorimetry (TG-DSC). The results showed that the intercalation of Kaol/methanol compound with hexylamine (HA), dodecylamine (DA), and octadecylamine (OA) led to the expansion of the interlayer distance and resulted in the dominant basal diffraction at 2.86, 4.08, and 5.66 nm. The alky chains of HA, DA, and OA are tilted toward the Kaol surface in bilayer with an inclination angle of ~40°. The most probable mechanism function, activation energy E, and pre-exponential factor A were obtained by mutual authentication using KAS and Ozawa methods, itrative and Satava integral method. The average activation energy E of the three intercalation compounds are 104.44, 130.80, and 154.59 kJ mol-1, respectively. It shows a positive correlation with the alkyl chain length. The pre-exponential factor A was estimated to be 1.09 × 1015, 1.15 × 108, and 4.17 × 1021 s-1, respectively. The optimized mechanism function for the decomposition of alkylamine is G(α) = [(1-α) -1/3-1]2.
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Affiliation(s)
- Yi Zhou
- School of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, China
- Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, United States
| | - Qinghe Liu
- School of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, China
| | - Peijie Xu
- School of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, China
| | - Hongfei Cheng
- School of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, China
- School of Environmental Science and Engineering, Chang'an University, Xi'an, China
| | - Qinfu Liu
- School of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, China
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Affiliation(s)
- Christian Detellier
- Department of Chemistry and Biomolecular Sciences; University of Ottawa; Ottawa, Ont. K1N6N5 Canada
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10
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Awad ME, López-Galindo A, Setti M, El-Rahmany MM, Iborra CV. Kaolinite in pharmaceutics and biomedicine. Int J Pharm 2017; 533:34-48. [PMID: 28943206 DOI: 10.1016/j.ijpharm.2017.09.056] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 12/29/2022]
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11
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Du W, Pu X, Sun J, Luo X, Zhang Y, Li L. Synthesis and evaluation of a novel monomeric amine as sodium montmorillonite swelling inhibitor. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417713851] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A novel monomeric amine sodium montmorillonite swelling inhibitor: N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide was obtained from diethanolamine, 1-bromotetradecane, and 1, 2-dibromoethane. N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide was characterized by means of Fourier transform infrared, 1H NMR spectroscopy, elemental analysis, linear swelling tests, particle size distribution tests, X-ray diffraction, and thermogravimetric. Linear swelling tests showed that the swelling height of sodium montmorillonite in 1.0 wt% N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide solution was only 2.0 mm after 16 h (fresh water was 5.0 mm). Particle size distribution tests exhibited that the median diameter and mean particle size of sodium montmorillonite in 1.0 wt% N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide solution obviously increased to 16.1 and 85.4 µm, respectively (fresh water was 8.1 and 21.8 µm). In thermogravimetric tests, in comparison with pure sodium montmorillonite, the decrease of water content in sodium montmorillonite/ N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide indicated N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide expelled the water molecules out of the interlayer, which was beneficial to wellbore stability. Fourier transform infrared spectra of certain concentration N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide/sodium montmorillonite indicated the successful physical adsorption and interaction between N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide with sodium montmorillonite. In addition, the results of X-ray diffraction tests showed the obtained 1.0 wt% N1, N2-ditetradecy- N1, N1, N2, N2-tetrakis (2-hydroxyethyl) ethane-1,2-diaminium bromide solution could remarkably reduce the interlayer distance of wet sodium montmorillonite (from 1.94 to 1.37 nm).
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Affiliation(s)
| | | | | | - Xiao Luo
- Southwest Petroleum University, China
| | - Yanna Zhang
- Research Institute of Petroleum Exploration & Development, China
| | - Lu Li
- The University of Manchester, UK
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Adazabra AN, Viruthagiri G, Shanmugam N. Management of spent shea waste: An instrumental characterization and valorization in clay bricks construction. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 64:286-304. [PMID: 28336335 DOI: 10.1016/j.wasman.2017.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/28/2017] [Accepted: 03/05/2017] [Indexed: 06/06/2023]
Abstract
This work studies the reuse of spent shea waste as an economic construction material in improving fired clay bricks manufacture aside providing a novel approach to ecofriendly managing its excessive generated from the shea agroindustry. For this purpose, the influence of spent shea waste addition on the chemical, mineralogical, molecular bonding and technological properties (i.e. compressive strength and water absorption) of the fired clay bricks were extensively investigated. The results indicated that the chemical, mineralogical, phase transformations, molecular bonding and thermal behavior of the produced bricks were practically unaffected by the addition of spent shea waste. However, spent shea waste addition increased the compressive strengths and water absorptions of the brick products. Potential performance benefits of reusing spent shea waste was improved fluxing agents, energy-contribution reaction, excellent porosifying effect, reduced thermal conductivity and enhanced compressive strengths of the brick products. This research has therefore provided compelling evidence that could create newfound route for the synergistic ecofriendly reuse of spent shea waste to enhance clay brick construction aside being a potential mainstream disposal option.
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Affiliation(s)
- A N Adazabra
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
| | - G Viruthagiri
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India.
| | - N Shanmugam
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar 608002, Chidambaram, Tamil Nadu, India
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Adazabra AN, Viruthagiri G, Shanmugam N. Infrared analysis of clay bricks incorporated with spent shea waste from the shea butter industry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 191:66-74. [PMID: 28088059 DOI: 10.1016/j.jenvman.2017.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 06/06/2023]
Abstract
The peculiar challenge of effective disposing abundant spent shea waste and the excellent compositional variation tolerance of clay material offered an impetus to examine the incorporation of spent shea waste into clay material as an eco-friendly disposal route in making clay bricks. For this purpose, the chemical constituent, mineralogical compositions and thermal behavior of both clay material and spent shea waste were initially characterized from which modelled brick specimens incorporating 5-20 wt% of the waste into the clay material were prepared. The clay material showed high proportions of SiO2 (52.97 wt%) and Al2O3 (27.10 wt%) indicating their rich kaolinitic content: whereas, the inert nature of spent shea waste was exhibited by their low oxide content. The striking similarities in infrared absorption bands of pristine clay material and clay materials incorporated with 15 wt% of spent shea waste showed that the waste incorporation had no impact on bond formation of the clay bricks. Potential performance benefits of developing bricks from clay material incorporated with spent shea waste included improved fluxing agents, economic sintering and making of sustainable bricks. Consequently, the analytical results authenticate the incorporation of spent shea waste into clay materials for various desired benefits aside being an environmental correct route of its disposal.
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Affiliation(s)
- A N Adazabra
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar, 608002, Chidambaram, Tamilnadu, India
| | - G Viruthagiri
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar, 608002, Chidambaram, Tamilnadu, India.
| | - N Shanmugam
- Department of Physics, Faculty of Science, Annamalai University, Annamalai Nagar, 608002, Chidambaram, Tamilnadu, India
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Characterization of AlFe-pillared Unye bentonite: A study of the surface acidity and catalytic property. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.02.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Caglar B, Çırak Ç, Tabak A, Afsin B, Eren E. Covalent grafting of pyridine-2-methanol into kaolinite layers. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.08.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Spectroscopic and thermal analysis of red clay for industrial applications from Tamilnadu, India. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.05.079] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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