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Kong F, Lu S. Soil inorganic amendments produce safe rice by reducing the transfer of Cd and increasing key amino acids in brown rice. J Environ Sci (China) 2024; 136:121-132. [PMID: 37923424 DOI: 10.1016/j.jes.2022.09.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 11/07/2023]
Abstract
The digestibility of cadmium (Cd) in brown rice is directly related to amino acid metabolism in rice and human health. In our field study, three kinds of alkaline calcium-rich soil inorganic amendments (SIAs) at three dosages were applied to produce safe rice and improve the quality of rice in Cd-contaminated paddy. With the increased application of SIA, Cd content in iron plaque on rice root significantly increased, the transfer of Cd from rice root to grain significantly decreased, and then Cd content in brown rice decreased synchronously. The vitro digestibility of Cd in brown rice was estimated by a physiologically based extraction test. Results showed that more than 70% of Cd in brown rice could be digested by simulated gastrointestinal juice. Based on the total and digestible Cd contents in brown rice to evaluate the health risk, the application of 2.25 ton SIA/ha could produce safe rice in acidic slightly Cd-contaminated paddy soils. The amino acids (AAs) in brown rice were determined by high-performance liquid chromatography. The contents of 5 key AAs (KAAs) that actively respond to environmental changes increased significantly with the increased application of SIA. The structural equation model indicated that KAAs could be affected by the Cd translocation capacity from rice root to grain, and consequently altered the ratio of indigestible Cd in brown rice. The formation of indigestible KAAs-Cd complexes by combining KAAs (phenylalanine, leucine, histidine, glutamine, and asparagine) with Cd in brown rice could be considered a potential mechanism for reducing the digestibility of Cd.
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Affiliation(s)
- Fanyi Kong
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shenggao Lu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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2
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Shao K, Lv Z, Xiong Y, Li G, Wang D, Zhang H, Qing G. Circularly polarized light modulated supramolecular self-assembly for an azobenzene-based chiral gel. RSC Adv 2019; 9:10360-10363. [PMID: 35520907 PMCID: PMC9062391 DOI: 10.1039/c9ra01974j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 03/29/2019] [Indexed: 11/21/2022] Open
Abstract
An unconventional supramolecular self-assembly triggered by left-handed circularly polarized light breaks the traditional knowledge of azobenzene photoisomerization.
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Affiliation(s)
- Kenan Shao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
- Key Laboratory of Separation Science for Analytical Chemistry
| | - Ziyu Lv
- College of Electronic Science and Technology
- Shenzhen University
- Shenzhen 518060
- P. R. China
| | - Yuting Xiong
- Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Guodong Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
- Key Laboratory of Separation Science for Analytical Chemistry
| | - Dongdong Wang
- Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Haining Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Guangyan Qing
- Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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Kaur R, Rani N, Vikas. Gas-Phase Stereoinversion in Aspartic Acid: Reaction Pathways, Computational Spectroscopic Analysis, and Its Astrophysical Relevance. ACS OMEGA 2018; 3:14431-14447. [PMID: 31458129 PMCID: PMC6645146 DOI: 10.1021/acsomega.8b01721] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/15/2018] [Indexed: 05/16/2023]
Abstract
Noncatalytic reaction pathways for the gas-phase stereoinversion in aspartic acid are mapped employing a global reaction route mapping strategy using quantum mechanical computations. The species including the transition states (TSs) traced along the stereoinversion pathways are characterized using rotational and vibrational computational spectroscopic analysis while accounting for the vibrational corrections to rotational constants and anharmonic effects. Notably, the TS structures traced along the stereochemical pathways resemble the achiral ammonium ylide and imine intermediates as observed in the Strecker synthesis of chiral amino acids. A few of the probable stereoinversion pathways proposed proceed through the proton or hydrogen atom transfer. The feasibility of the pathways under conditions akin to interstellar medium (ISM) is further discussed in terms of natural bond orbital analysis. The stereoinversion pathways proposed in this work may proceed via photoirradiation in the ISM, which though can be revealed by exploring the excited-state potential energy surface. In this context, the spectroscopic data generated in this work can provide valuable assistance toward the astrophysical detection of chiral molecules in outer space.
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Affiliation(s)
- Ramanpreet Kaur
- Quantum Chemistry Group, Department
of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Namrata Rani
- Quantum Chemistry Group, Department
of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Vikas
- Quantum Chemistry Group, Department
of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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Gamez-Garcia VG, Galano A. Systematic Search for Chemical Reactions in Gas Phase Contributing to Methanol Formation in Interstellar Space. J Phys Chem A 2017; 121:7393-7400. [PMID: 28885025 DOI: 10.1021/acs.jpca.7b05797] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A massive search for chemical routes leading to methanol formation in gas phase has been conducted using computational chemistry, at the CBS-QB3 level of theory. The calculations were performed at five different temperatures (100, 80, 50, 20, and 10 K) and at three pressures (0.1, 0.01, and 0.001 atm) for each temperature. The search was focused on identifying reactions with the necessary features to be viable in the interstellar medium (ISM). A searching strategy was applied to that purpose, which allowed to reduce an initial set of 678 possible reactions to a subset of 11 chemical routes that are recommended, for the first time, as potential candidates for contributing to methanol formation in the gas phase of the ISM. They are all barrier-less, and thus they are expected to take place at collision rates. Hopefully, including these reactions in the currently available models, for the gas-phase methanol formation in the ISM, would help improving the predicted fractional abundance of this molecule in dark clouds. Further investigations, especially those dealing with grain chemistry and electronic excited states, would be crucial to get a complete picture of the methanol formation in the ISM.
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Affiliation(s)
- Victoria G Gamez-Garcia
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa , San Rafael Atlixco 186, Col. Vicentina. Iztapalapa, C. P. 09340, México D. F. México
| | - Annia Galano
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa , San Rafael Atlixco 186, Col. Vicentina. Iztapalapa, C. P. 09340, México D. F. México
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FUJIKI M. Creation and Controlling Asymmetric Small Molecules, Polymers, Colloids, and Small Objects Endowed with Polarized Light and Spin Polarized Particles. KOBUNSHI RONBUNSHU 2017. [DOI: 10.1295/koron.2016-0059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Michiya FUJIKI
- Graduate School of Materials Science, Nara Institute of Science and Technology
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Šebestík J, Kapitán J, Pačes O, Bouř P. Diamagnetic Raman Optical Activity of Chlorine, Bromine, and Iodine Gases. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jaroslav Šebestík
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Josef Kapitán
- Department of Optics; Palacký University; 17. listopadu 12 77146 Olomouc Czech Republic
| | - Ondřej Pačes
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Petr Bouř
- Biomolecular Spectroscopy; Institute of Organic Chemistry and Biochemistry; Flemingovo náměstí 2 16610 Prague Czech Republic
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Šebestík J, Kapitán J, Pačes O, Bouř P. Diamagnetic Raman Optical Activity of Chlorine, Bromine, and Iodine Gases. Angew Chem Int Ed Engl 2016; 55:3504-8. [PMID: 26845382 DOI: 10.1002/anie.201600058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Indexed: 01/23/2023]
Abstract
Magnetic Raman optical activity of gases provides unique information about their electric and magnetic properties. Magnetic Raman optical activity has recently been observed in a paramagnetic gas (Angew. Chem. Int. Ed. 2012, 51, 11058; Angew. Chem. 2012, 124, 11220). In diamagnetic molecules, it has been considered too weak to be measurable. However, in chlorine, bromine and iodine vapors, we could detect a significant signal as well. Zeeman splitting of electronic ground-state energy levels cannot rationalize the observed circular intensity difference (CID) values of about 10(-4). These are explicable by participation of paramagnetic excited electronic states. Then a simple model including one electronic excited state provides reasonable spectral intensities. The results suggest that this kind of scattering by diamagnetic molecules is a general event observable under resonance conditions. The phenomenon sheds new light on the role of excited states in the Raman scattering, and may be used to probe molecular geometry and electronic structure.
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Affiliation(s)
- Jaroslav Šebestík
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic
| | - Josef Kapitán
- Department of Optics, Palacký University, 17. listopadu 12, 77146, Olomouc, Czech Republic
| | - Ondřej Pačes
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic
| | - Petr Bouř
- Biomolecular Spectroscopy, Institute of Organic Chemistry and Biochemistry, Flemingovo náměstí 2, 16610, Prague, Czech Republic.
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Walde P, Umakoshi H, Stano P, Mavelli F. Emergent properties arising from the assembly of amphiphiles. Artificial vesicle membranes as reaction promoters and regulators. Chem Commun (Camb) 2015; 50:10177-97. [PMID: 24921467 DOI: 10.1039/c4cc02812k] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This article deals with artificial vesicles and their membranes as reaction promoters and regulators. Among the various molecular assemblies which can form in an aqueous medium from amphiphilic molecules, vesicle systems are unique. Vesicles compartmentalize the aqueous solution in which they exist, independent on whether the vesicles are biological vesicles (existing in living systems) or whether they are artificial vesicles (formed in vitro from natural or synthetic amphiphiles). After the formation of artificial vesicles, their aqueous interior (the endovesicular volume) may become - or may be made - chemically different from the external medium (the exovesicular solution), depending on how the vesicles are prepared. The existence of differences between endo- and exovesicular composition is one of the features on the basis of which biological vesicles contribute to the complex functioning of living organisms. Furthermore, artificial vesicles can be formed from mixtures of amphiphiles in such a way that the vesicle membranes become molecularly, compositionally and organizationally highly complex, similarly to the lipidic matrix of biological membranes. All the various properties of artificial vesicles as membranous compartment systems emerge from molecular assembly as these properties are not present in the individual molecules the system is composed of. One particular emergent property of vesicle membranes is their possible functioning as promoters and regulators of chemical reactions caused by the localization of reaction components, and possibly catalysts, within or on the surface of the membranes. This specific feature is reviewed and highlighted with a few selected examples which range from the promotion of decarboxylation reactions, the selective binding of DNA or RNA to suitable vesicle membranes, and the reactivation of fragmented enzymes to the regulation of the enzymatic synthesis of polymers. Such type of emergent properties of vesicle membranes may have been important for the prebiological evolution of protocells, the hypothetical compartment systems preceding the first cells in those chemical and physico-chemical processes that led to the origin of life.
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Affiliation(s)
- Peter Walde
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland.
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Meinert C, Meierhenrich UJ. Derivatization and Multidimensional Gas-Chromatographic Resolution of α-Alkyl and α-Dialkyl Amino Acid Enantiomers. Chempluschem 2014. [DOI: 10.1002/cplu.201300328] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Evans AC, Meinert C, Bredehöft JH, Giri C, Jones NC, Hoffmann SV, Meierhenrich UJ. Anisotropy Spectra for Enantiomeric Differentiation of Biomolecular Building Blocks. Top Curr Chem (Cham) 2013; 341:271-99. [DOI: 10.1007/128_2013_442] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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