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Kamijo T, Yazawa K. Nucleotide-based regenerated fiber production using salmon (Oncorhynchus keta) milt waste by solution spinning. Int J Biol Macromol 2024; 258:128866. [PMID: 38123035 DOI: 10.1016/j.ijbiomac.2023.128866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/30/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
The use of nucleic acid-derived fibers has not been developed in contrast to the traditional use of polysaccharide- and protein-based fibers in daily life. Salmon, Oncorhynchus keta, is an abundant fishery resource, and its milt contains a huge amount of DNA. Most of the milt is discarded because it degrades easily and is unsuitable for food consumption. DNA-based fibers are expected to possess functionality and mechanical strength because DNA is a polyanion with a high molecular weight. Here, using DNA extracted from the salmon milt, we produced nucleotide-based fibers. A solution spinning system was applied using ethanol as a coagulant. Adding the salt to the dope solution reduced the solubility of DNA, which was essential for the successful spinning of DNA-based fibers. The obtained fibers became insoluble in water by ultraviolet (UV) exposure. Fibril-like structures were detected on the fracture surface, and humidity influenced the conformational structure. This study focuses on the bulk-scale production of biodegradable DNA-based fibers. Therefore, it can be used not only for clothing and filters but also as a functional material to remove harmful pollutants released into the ocean, such as heavy metal ions and aromatic derivatives.
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Affiliation(s)
- Takafumi Kamijo
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Kenjiro Yazawa
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan; Division of Fibers and Textiles, Interdisciplinary Cluster for Cutting Edge Research, Institute for Fiber Engineering, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan.
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2
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Li J, Wang X, Feng Z, Huang G, Yan L, Ma J. Optimization of aflatoxin B 1 removal efficiency of DNA by resonance light scattering spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 292:122398. [PMID: 36739664 DOI: 10.1016/j.saa.2023.122398] [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: 10/31/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
In this paper, firstly, the resonance light scattering spectra of aflatoxin B1 (AFB1) and DNA were measured by resonance light scattering spectroscopy (RLS), and the DNA binding saturation value (DBSV) of AFB1 was calculated from their spectral results. Then the interaction intensity between DNA and AFB1 and the effects of some external factors on the interaction between DNA and AFB1 were evaluated by corresponding DBSVs, so as to establish and optimize a way for removing AFB1 by DNA. DBSV of AFB1 was 2.04 at 30℃ and pH 7.40. However, after adding sodium ion, calcium ion, vitamin E, vitamin C and D-glucose, DBSV of AFB1 was changed to 2.72, 3.17, 2.67, 1.68 and 1.33 respectively. Correspondingly, the removal efficiency of AFB1 by DNA was changed from 90.05% to 93.25%, 95.48%, 93.08%, 82.36% and 78.90% respectively. These results indicated that the external factors had a significant impact on the interaction between DNA and AFB1. Among them, some factors enhanced the interaction between DNA and AFB1, while some factors weakened the interaction between DNA and AFB1. The change of these external factors led to the corresponding changes in DBSV and the removal efficiency of AFB1. DBSV of AFB1 could really be used as an index to evaluate the intensity of the interaction between DNA and AFB1, and to optimize the removal efficiency of AFB1 by DNA. The experimental data also showed that the adsorption of AFB1 to DNA was consistent with the pseudo-second-order kinetic model and the Freundlich isothermal model, was an exothermic and spontaneous process. All these results will give good references for establishing and optimizing a way of AFB1 removal via DNA intercalation.
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Affiliation(s)
- Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China.
| | - Xiaoxue Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Zhen Feng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Ji Ma
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
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Torres-Huerta AL, Antonio-Pérez A, García-Huante Y, Alcázar-Ramírez NJ, Rueda-Silva JC. Biomolecule-Based Optical Metamaterials: Design and Applications. BIOSENSORS 2022; 12:962. [PMID: 36354471 PMCID: PMC9688573 DOI: 10.3390/bios12110962] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Metamaterials are broadly defined as artificial, electromagnetically homogeneous structures that exhibit unusual physical properties that are not present in nature. They possess extraordinary capabilities to bend electromagnetic waves. Their size, shape and composition can be engineered to modify their characteristics, such as iridescence, color shift, absorbance at different wavelengths, etc., and harness them as biosensors. Metamaterial construction from biological sources such as carbohydrates, proteins and nucleic acids represents a low-cost alternative, rendering high quantities and yields. In addition, the malleability of these biomaterials makes it possible to fabricate an endless number of structured materials such as composited nanoparticles, biofilms, nanofibers, quantum dots, and many others, with very specific, invaluable and tremendously useful optical characteristics. The intrinsic characteristics observed in biomaterials make them suitable for biomedical applications. This review addresses the optical characteristics of metamaterials obtained from the major macromolecules found in nature: carbohydrates, proteins and DNA, highlighting their biosensor field use, and pointing out their physical properties and production paths.
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Affiliation(s)
- Ana Laura Torres-Huerta
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Estado de México, Av. Lago de Guadalupe KM 3.5, Margarita Maza de Juárez, Cd. López Mateos, Atizapán de Zaragoza 52926, Mexico
| | - Aurora Antonio-Pérez
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Estado de México, Av. Lago de Guadalupe KM 3.5, Margarita Maza de Juárez, Cd. López Mateos, Atizapán de Zaragoza 52926, Mexico
| | - Yolanda García-Huante
- Departamento de Ciencias Básicas, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Instituto Politécnico Nacional (UPIITA-IPN), Mexico City 07340, Mexico
| | - Nayelhi Julieta Alcázar-Ramírez
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Estado de México, Av. Lago de Guadalupe KM 3.5, Margarita Maza de Juárez, Cd. López Mateos, Atizapán de Zaragoza 52926, Mexico
| | - Juan Carlos Rueda-Silva
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Estado de México, Av. Lago de Guadalupe KM 3.5, Margarita Maza de Juárez, Cd. López Mateos, Atizapán de Zaragoza 52926, Mexico
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
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Yamada M, Kawamura M, Yamada T. Preparation of bioplastic consisting of salmon milt DNA. Sci Rep 2022; 12:7423. [PMID: 35523933 PMCID: PMC9076882 DOI: 10.1038/s41598-022-11482-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/18/2022] [Indexed: 11/09/2022] Open
Abstract
The microplastic that pollutes the ocean is a serious problem around the world. The bioplastic consisting of biopolymers which is degraded in nature, is one of the strategies to solve this problem. Although the bioplastics consisting of protein, polysaccharide, polylactic acid, etc., have been reported, which consist of DNA, one of the most important materials in the genetic process, have not been reported to the best of our knowledge. In addition, a large amount of DNA-containing materials, such as salmon milts, is discarded as industrial waste around the world. Therefore, we demonstrated the preparation of a bioplastic consisting of salmon milt DNA. The DNA plastic was prepared by the immersion of a DNA pellet in a formaldehyde (HCHO) solution and heating. As a result, the water-stable DNA plastics were obtained at the HCHO concentration of 20% or more. Particularly, the DNA plastic with a 25% HCHO treatment showed water-insoluble, thermally stable, and highly mechanical properties. These are due to the formation of a three-dimensional network via the crosslinking reaction between the DNA chains. In addition, since DNA in plastic possesses the double-stranded structure, these plastics effectively accumulated the DNA intercalator, such as ethidium bromide. Furthermore, the DNA plastics indicated a biodegradable property in a nuclease-containing aqueous solution and the biodegradable stability was able to be controlled by the HCHO concentration. Therefore, salmon milt DNA has shown the potential to be a biodegradable plastic.
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Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Kita-ku, Okayama, 700-0005, Japan.
| | - Midori Kawamura
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Kita-ku, Okayama, 700-0005, Japan
| | - Tetsuya Yamada
- Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan
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Li J, Feng Z, Wang J, Huang G, Yan L. Interaction of aflatoxin G 1 with free DNA in vitro and possibility of its application in removing aflatoxin G 1. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:932-940. [PMID: 34554053 DOI: 10.1080/03601234.2021.1979838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present study sought to evaluate the interaction between aflatoxin G1 and free DNA in vitro through different analytical techniques. The UV-visible spectra results showed that the structure of DNA might be changed with a new aflatoxin G1-DNA complex forming, which indicated that the interacting mode between them was the intercalating mode. The DNA melting temperature increased by 12.80 °C, suggesting that the DNA double helix structure was more compact and stable through intercalation. The circular dichroism (CD) spectra results indicated that the interaction of aflatoxin G1 with DNA induced the DNA base stacking changes. The results of agarose gel electrophoresis and fluorescence microscope further verified that the interacting mode between aflatoxin G1 and DNA was intercalation mode. According to the fluorescence spectrum data, the binding constant was calculated 6.24 × 104 L·mol-1. The thermodynamic results demonstrated that the reaction of aflatoxin G1 intercalating to DNA was a spontaneous reaction. The elimination results suggested that aflatoxin G1 could be enriched and removed by DNA intercalation through magnetic beads separation, with the removal efficiency of 93.73%. The study results would provide a theoretical basis for establishing a new aflatoxin removal method based on DNA intercalation.
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Affiliation(s)
- Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Guangxi, P. R. China
| | - Zhen Feng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Guangxi, P. R. China
| | - Jingting Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Guangxi, P. R. China
- Qilu Institute of Technology, Jinan, Shandong, P. R. China
| | - Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Guangxi, P. R. China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Guangxi, P. R. China
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Ma G, Zhang K, Wang H, Liang Z, Zhou L, Yan B. Versatile synthesis of a highly porous DNA/CNT hydrogel for the adsorption of the carcinogen PAH. Chem Commun (Camb) 2021; 57:2289-2292. [PMID: 33533382 DOI: 10.1039/d0cc07066a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, a novel pathway to prepare a porous structured DNA hybrid hydrogel has been described, using a transiently existing Pickering emulsion that is continuously generated during the reaction. The as-prepared highly porous gel features significantly improved capability for trace amounts of PAH removal.
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Affiliation(s)
- Ge Ma
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, P. R. China.
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7
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Huang G, Ma J, Li J, Yan L. Removal of 1,2-benzanthracene via the intercalation of 1,2-benzanthracene with DNA and magnetic bead-based separation. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 40:137-156. [PMID: 33124510 DOI: 10.1080/15257770.2020.1839905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this study, DNA-functionalize-magnetic beads were investigated as sorbent materials for effective removing 1,2-benzanthracene (BaA) from water. In order to reveal the removal mechanism, the interaction mode between BaA and DNA was evaluated by using various characterization tools such as UV-visible and circular dichroism spectroscopy, fluorescence and resonance scattering spectroscopy, and agarose gel electrophoresis. In the presence of BaA, the melting temperature of DNA increased from 76.2 °C to 82.3 °C, which closely related to the intercalating of BaA. It was found that a part of the ethidium bromide (EB) binding sites to DNA were occupied by BaA in EB competing study. The results indicated that a new complex appeared between hsDNA and BaA, and the number of the binding sites (n) and the binding constants (KA) at different temperatures were obtained. DNA binding saturation value (≈0.80) was obtained by resonance scattering spectra study. BaA could be enriched and removed by DNA-functionalize-magnetic beads via the intercalation, and the removal efficiency was 97.73% when the initial concentration was 2.45 x10-6 mol·L-1 (559.31 μg/L).
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Affiliation(s)
- Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Ji Ma
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, Guangxi, P. R. China
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8
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Li J, Wang J, Fan J, Huang G, Yan L. Binding characteristics of aflatoxin B 1 with free DNA in vitro. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118054. [PMID: 32006841 DOI: 10.1016/j.saa.2020.118054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 06/10/2023]
Abstract
In this paper, the binding characteristics of aflatoxin B1 (AFB1) with the herring sperm deoxyribonucleic acid (DNA) in vitro were investigated through different analytical methods. The ultraviolet-visible spectroscopy (UV-vis), fluorescence, and circular dichroism (CD) spectra results showed that a new AFB1-DNA complex was formed. All the results suggested that AFB1 interacted with free DNA in vitro in an intercalating binding mode. The results of the DNA melting experiments also showed that the melting temperature of DNA increased by about 12.1 °C due to the addition of AFB1, which was supposed to be closely related to the intercalation of AFB1 into DNA. The agar gel electrophoresis experiments further confirmed that the binding mode of AFB1 and free DNA in vitro was indeed intercalation. In addition, the fluorescence quenching induced by adding AFB1 to the ethidium bromide-DNA (EB-DNA) mixture indicated the presence of competitive non-covalent intercalating binding interaction with a competitive binding constant of 5.58 L/mol between AFB1, EB, and DNA. The thermodynamic data demonstrated that the main driving forces of the binding reaction were van der Waals forces and hydrogen bond. The resonance light scattering (RLS) assay results showed that the DNA binding saturation values of AFB1, EB, psoralen (PSO), and angelicin (ANG) were 2.14, 15.59, 0.74, and 0.74, respectively. These results indicated that the DNA binding capacity of AFB1 was weaker than that of EB, but stronger than those of PSO and ANG.
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Affiliation(s)
- Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Donghuan Road 268, Liuzhou 545006, Guangxi, PR China.
| | - Jingting Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Donghuan Road 268, Liuzhou 545006, Guangxi, PR China
| | - Junfu Fan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Donghuan Road 268, Liuzhou 545006, Guangxi, PR China
| | - Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Donghuan Road 268, Liuzhou 545006, Guangxi, PR China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Donghuan Road 268, Liuzhou 545006, Guangxi, PR China
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Yamada M, Tohyama C, Yamada T. Preparation of water-insoluble and biochemically stable RNA hybrid material. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4408] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Chika Tohyama
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Tetsuya Yamada
- Research Faculty of Agriculture; Hokkaido University; Sapporo 060-8589 Japan
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Zhao C, Shi L, Xie X, Sun S, Liu X, Nomizu M, Nishi N. DNA-Modified Polysulphone Microspheres for Endocrine Disruptors and Heavy Metal Ions Removal. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/026361705774355487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Porous polysulphone (PSf) microspheres were modified by blending DNA into them and immobilizing DNA onto their surfaces. The DNA-modified microspheres, which were stable in water, were then used to remove endocrine disruptors and heavy metal ions from their aqueous solutions. Such microspheres could effectively accumulate pollutant compounds and endocrine disruptors, such as ethidium bromide, Acridine Orange, biphenyl, dibenzofuran and dibenzo- p-dioxin from their aqueous solutions. PSf microspheres without DNA also accumulated and removed endocrine disruptors due to their porosity and the hydrophobic interaction between the endocrine disruptors and PSf. Endocrine disruptors with and without a planar structure were effectively accumulated and removed by the DNA-modified PSf microspheres. In addition, PSf microspheres were found to be capable of selectively removing heavy metal ions such as Zn2+, Cu2+, Mg2+, Cd2+ and Ag+ from their aqueous solutions. These results show that DNA can be used to modify PSf microspheres, with the DNA-modified microspheres having a potential use in environmental applications.
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Affiliation(s)
- Changsheng Zhao
- Department of Biomedical Polymeric Materials, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ling Shi
- Department of Biomedical Polymeric Materials, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xingyi Xie
- Department of Biomedical Polymeric Materials, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Shudong Sun
- Department of Biomedical Polymeric Materials, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xiangdong Liu
- Division of Biosciences, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
| | - Motoyoshi Nomizu
- Division of Biosciences, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
| | - Norio Nishi
- Division of Biosciences, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
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11
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Uragami T, Banno M, Miyata T. Dehydration of an ethanol/water azeotrope through alginate-DNA membranes cross-linked with metal ions by pervaporation. Carbohydr Polym 2015; 134:38-45. [DOI: 10.1016/j.carbpol.2015.07.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/25/2015] [Accepted: 07/15/2015] [Indexed: 11/29/2022]
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12
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Uptake of aromatic compounds by DNA: Toward the environmental application of DNA for cleaning water. Colloids Surf B Biointerfaces 2015; 129:146-53. [DOI: 10.1016/j.colsurfb.2015.03.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/13/2015] [Accepted: 03/17/2015] [Indexed: 11/21/2022]
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13
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Characterization of Triton X-100 and its oligomer (Tyloxapol) micelles vis-à-vis solubilization of bisphenol A by spectral and scattering techniques. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.01.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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14
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Takahashi Y, Kondo K, Miyaji A, Watanabe Y, Fan Q, Honma T, Tanaka K. Recovery and separation of rare Earth elements using salmon milt. PLoS One 2014; 9:e114858. [PMID: 25490035 PMCID: PMC4260943 DOI: 10.1371/journal.pone.0114858] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 11/14/2014] [Indexed: 11/19/2022] Open
Abstract
Recycling rare earth elements (REEs) used in advanced materials such as Nd magnets is important for the efficient use of REE resources when the supply of several REEs is limited. In this work, the feasibility of using salmon milt for REE recovery and separation was examined, along with the identification of the binding site of REEs in salmon milt. Results showed that (i) salmon milt has a sufficiently high affinity to adsorb REEs and (ii) the adsorption capacity of the milt is 1.04 mEq/g, which is comparable with that of commercial cation exchange resin. Heavier REEs have higher affinity for milt. A comparison of stability constants and adsorption patterns of REEs discussed in the literature suggests that the phosphate is responsible for the adsorption of REE in milt. The results were supported by dysprosium (Dy) and lutetium (Lu) LIII-edge extended x-ray absorption fine structure (EXAFS) spectroscopy. The REE-P shell was identified for the second neighboring atom, which shows the importance of the phosphate site as REE binding sites. The comparison of REE adsorption pattern and EXAFS results between the milt system and other adsorbent systems (cellulose phosphate, Ln-resin, bacteria, and DNA-filter hybrid) revealed that the coordination number of phosphate is correlated with the slope of the REE pattern. The separation column loaded with milt was tested to separate REE for the practical use of salmon milt for the recovery and separation of REE. However, water did not flow through the column possibly because of the hydrophobicity of the milt. Thus, sequential adsorption-desorption approach using a batch-type method was applied for the separation of REE. As an example of the practical applications of REE separation, Nd and Fe(III) were successfully separated from a synthetic solution of Nd magnet waste by a batch-type method using salmon milt.
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Affiliation(s)
- Yoshio Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bukyo-ku, Tokyo, 113-8654, Japan
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
- * E-mail:
| | - Kazuhiro Kondo
- Aisin Cosmos R&D Co., LTD., Kisarazu, Chiba, 292-0818, Japan
| | - Asami Miyaji
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Yusuke Watanabe
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bukyo-ku, Tokyo, 113-8654, Japan
| | - Qiaohui Fan
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bukyo-ku, Tokyo, 113-8654, Japan
| | - Tetsuo Honma
- SPring-8, Japan Synchrotron Radiation Research Institute (JASRI), Sayo-cho, Hyogo, 679-5198, Japan
| | - Kazuya Tanaka
- Institute for Sustainable Sciences and Development, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan
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Yamada M, Hara S, Yamada T, Katagiri F, Hozumi K, Nomizu M. Double-stranded DNA stereoselectively promotes aggregation of amyloid-like fibrils and generates peptide/DNA matrices. Biopolymers 2014; 102:465-72. [DOI: 10.1002/bip.22571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/22/2014] [Accepted: 09/27/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Sachiko Hara
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Tetsuya Yamada
- Research Faculty of Agriculture; Hokkaido University; Sapporo 060-8589 Japan
| | - Fumihiko Katagiri
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Kentaro Hozumi
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Motoyoshi Nomizu
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
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Tomita N, Naito D, Rokugawa I, Yamamoto T, Dobashi T. Model carcinogen adsorption dynamics of DNA gel. Colloids Surf B Biointerfaces 2014; 121:122-8. [PMID: 24967547 DOI: 10.1016/j.colsurfb.2014.05.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 05/25/2014] [Accepted: 05/28/2014] [Indexed: 10/25/2022]
Abstract
We have derived theoretical equations describing the adsorption of carcinogen to gels in an immersion medium containing carcinogens. The theory was developed for a cylindrical boundary condition under the assumption of a carcinogen diffusion-limited process combined with the "moving boundary picture (Furusawa et al., 2007)". The time course of the adsorbed carcinogen layer thickness and that of the carcinogen concentration in an immersion medium were expressed by a set of scaled variables, and the asymptotic behavior in the initial stage was derived. Experiments based on the theory were performed using a DNA gel sandwiched between a set of coverglasses in a medium containing acridine orange (AO). The boundary between the AO-adsorbed gel layer and AO-nonadsorbed gel layer was traced during the immersion. The time courses of the AO-adsorbed gel layer thickness and the AO concentration in the immersion medium were well explained by the theory, and the number ratio of the total AO molecules to the adsorption sites in the DNA gel was determined.
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Affiliation(s)
- Naoko Tomita
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Daisuke Naito
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Isamu Rokugawa
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Takao Yamamoto
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Toshiaki Dobashi
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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17
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Kong X, Feng S, Zhang X, Li Y. Effects of bile salts and divalent cations on the adsorption of norfloxacin by agricultural soils. J Environ Sci (China) 2014; 26:846-854. [PMID: 25079415 DOI: 10.1016/s1001-0742(13)60480-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 07/29/2013] [Accepted: 09/03/2013] [Indexed: 06/03/2023]
Abstract
The effects of bile salts (sodium cholate and sodium deoxycholate, 0-20 mmol/L), divalent cations (Ca(2+), Mg(2+), Cu(2+) and Zn(2+), 0-20 mmol/L) or pH (3.0-10.0) on the adsorption of norfloxacin by three selected soils (Paddy_H, Paddy_G and Red_J) were systematically studied. Soil adsorption of norfloxacin follows a pseudo second-order kinetics model, and the maximum adsorption capacity has been determined from the nonlinear fit of the Langmuir isotherm model to be 88.8, 88.1 and 63.0 μmol/g for the adsorption onto Paddy_H, Paddy_G and Red_J, respectively. The results indicate that norfloxacin has a high adsorption affinity for the agricultural soils tested and that the organic content of these soils have at least a slight influence on this adsorption. The adsorption of norfloxacin to soils was strongly dependent on pH and exhibited a maximum at approximately pH 6. The presence of divalent cations prominently suppressed the adsorption of norfloxacin by paddy soils, which followed an order of Cu(2+) > Mg(2+) > Ca(2+) > Zn(2+), and by red soil, which followed an order of Cu(2+) > Zn(2+) > Ca(2+) > Mg(2+). The adsorption of norfloxacin (by the soils studied) sharply decreased as the amount of bile salts was increased. For uncharged norfloxacin at environmentally relevant pH values, such factors as soil type, exogenous divalent cations and macromolecules significantly altered the environmental fate and transport of norfloxacin between aquatic and soil interfaces.
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Affiliation(s)
- Xuesong Kong
- School of Resources and Environmental Science, Wuhan University, Wuhan 430079, China.
| | - Shixiang Feng
- School of Resources and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Xu Zhang
- School of Resources and Environmental Science, Wuhan University, Wuhan 430079, China.
| | - Yan Li
- School of Resources and Environmental Science, Wuhan University, Wuhan 430079, China
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18
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Selective accumulation of rare earth metal and heavy metal ions by a DNA-inorganic hybrid material. Polym J 2014. [DOI: 10.1038/pj.2014.5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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19
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Yamada M, Kanamori Y, Yamada T. Immobilization of double-stranded DNA onto glass beads by psolaren. Int J Biol Macromol 2013; 60:39-44. [PMID: 23707751 DOI: 10.1016/j.ijbiomac.2013.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 05/13/2013] [Accepted: 05/13/2013] [Indexed: 10/26/2022]
Abstract
We demonstrated the immobilization of double-stranded DNA onto the glass beads by psoralen, one of the DNA-intercalators in nature. As a result, DNA-immobilized glass beads (DNA-P-beads) were prepared by the intercalation of psoralen, which was immobilized onto the glass surface, onto the double-stranded DNA. These DNA-P-beads formed covalent bondings between psoralen and the nucleic acid base by 365 nm UV irradiation. The amount of immobilized-DNA was 0.24 mg per gram of glass beads. These DNA-P-beads were stable in water, and the DNA on the bead surface maintained its double-stranded structure. These DNA-P-beads selectively removed the planar-structure containing harmful compounds, such as dioxin and polychlorinated biphenyl (PCB) derivatives, from an aqueous multi-component solution. Additionally, a DNA-P-bead column effectively removed harmful compounds. Furthermore, the DNA-P-bead column could be reused by the addition of common organic solvents, such as ethanol.
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Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Kita-Ku, Okayama 700-0005, Japan.
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20
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Maeda Y, Zinchenko A, Lopatina LI, Sergeyev VG, Murata S. Extraction of Noble and Rare-Earth Metals from Aqueous Solutions by DNA Cross-Linked Hydrogels. Chempluschem 2013; 78:619-622. [DOI: 10.1002/cplu.201300047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 03/25/2013] [Indexed: 11/07/2022]
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21
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Yamada M, Okumoto A, Yamada T. Preparation of DNA-polyintercalator conjugate and its functional property. Int J Biol Macromol 2012; 51:215-20. [PMID: 22634491 DOI: 10.1016/j.ijbiomac.2012.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 04/30/2012] [Accepted: 05/05/2012] [Indexed: 10/28/2022]
Abstract
Psoralen immobilized polyvinyl alcohol (PVA-P) was synthesized from chloromethylmethoxypsoralen and polyvinyl alcohol. The psoralen part of PVA-P intercalated into the double-stranded DNA and formed covalent bonding between the psoralen and nucleic acid base after 365 nm UV irradiation. As a result, DNA and PVA-P produced a water-insoluble conjugate. This DNA-PVA-P conjugate maintained the double-stranded structure of DNA and possessed the DNA's property, such as intercalation. Therefore, the DNA-PVA-P conjugate selectively accumulated the planar-structure containing chemical compounds, such as biphenyl and dibenzofuran, from an aqueous multi-component solution. These DNA-PVA-P conjugates may have the potential to be utilized as a separation material for the selective removal of harmful compounds.
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Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Kita-Ku, Okayama 700-0005, Japan.
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22
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Yamada M, Goto A. Proton conduction of DNA–imidazole composite material under anhydrous condition. Polym J 2012. [DOI: 10.1038/pj.2012.5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Yamada M, Inoue M, Yamada T. Synthesis of DNA intercalator–immobilized cyclodextrin and interaction with double-stranded DNA: Utilization of DNA–cyclodextrin conjugated material as an environmental remediation material. Polym Chem 2012. [DOI: 10.1039/c2py00007e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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TAKAHASHI Y, KONDO K, MIYAJI A, UMEO M, HONMA T, ASAOKA S. Recovery and Separation of Rare Earth Elements Using Columns Loaded with DNA-filter Hybrid. ANAL SCI 2012; 28:985-92. [DOI: 10.2116/analsci.28.985] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yoshio TAKAHASHI
- Department of Earth and Planetary Systems Science, Hiroshima University
- Laboratory for Multiple Isotope Research for Astro- and Geochemical Evolution (MIRAGE), Hiroshima University
| | | | - Asami MIYAJI
- Department of Earth and Planetary Systems Science, Hiroshima University
| | - Miyuki UMEO
- Department of Earth and Planetary Systems Science, Hiroshima University
| | - Tetsuo HONMA
- SPring-8, Japan Synchrotron Radiation Research Institute (JASRI)
| | - Satoshi ASAOKA
- Department of Earth and Planetary Systems Science, Hiroshima University
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25
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26
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Tripathi BP, Shahi VK. Organic–inorganic nanocomposite polymer electrolyte membranes for fuel cell applications. Prog Polym Sci 2011. [DOI: 10.1016/j.progpolymsci.2010.12.005] [Citation(s) in RCA: 447] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Liu X, Kubo T, Chen W, Benjamas J, Yonemichi T, Nishi N. Adsorptive Selectivity of DNA/Polyvinyl Alcohol Interpenetrating Polymer Networks. SEP SCI TECHNOL 2011. [DOI: 10.1080/01496395.2010.517592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- XiangDong Liu
- a Key Laboratory of Advanced Textile Materials and Manufacturing Technology , Ministry of Education of China, Zhejiang Sci-Tech University , Hangzhou, China
- b Division of Bioscience, Graduate School of Environmental Earth Science , Hokkaido University , Sapporo, Japan
| | - Tetsuro Kubo
- b Division of Bioscience, Graduate School of Environmental Earth Science , Hokkaido University , Sapporo, Japan
| | - WenXing Chen
- a Key Laboratory of Advanced Textile Materials and Manufacturing Technology , Ministry of Education of China, Zhejiang Sci-Tech University , Hangzhou, China
| | - Jonganurakkun Benjamas
- b Division of Bioscience, Graduate School of Environmental Earth Science , Hokkaido University , Sapporo, Japan
| | - Tomomi Yonemichi
- b Division of Bioscience, Graduate School of Environmental Earth Science , Hokkaido University , Sapporo, Japan
| | - Norio Nishi
- b Division of Bioscience, Graduate School of Environmental Earth Science , Hokkaido University , Sapporo, Japan
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28
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Masuo Y, Ishido M. Neurotoxicity of endocrine disruptors: possible involvement in brain development and neurodegeneration. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2011; 14:346-369. [PMID: 21790316 DOI: 10.1080/10937404.2011.578557] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Environmental chemicals that act as endocrine disruptors do not appear to pose a risk to human reproduction; however, their effects on the central nervous systems are less well understood. Animal studies suggested that maternal exposure to endocrine-disrupting chemicals (EDC) produced changes in rearing behavior, locomotion, anxiety, and learning/memory in offspring, as well as neuronal abnormalities. Some investigations suggested that EDC exert effects on central monoaminergic neurons, especially dopaminergic neurons. Our data demonstrated that EDC attenuate the development of dopaminergic neurons, which might be involved in developmental disorders. Perinatal exposure to EDC might affect neuronal plasticity in the hippocampus, thereby potentially modulating neuronal development, leading to impaired cognitive and memory functions. Endocrine disruptors also attenuate gender differences in brain development. For example, the locus ceruleus is larger in female rats than in males, but treatments with bisphenol-A (BPA) enlarge this region in males. Some reports indicated that EDC induce hypothyroidism, which might be evidenced as abnormal brain development. Endocrine disruptors might also affect mature neurons, resulting in neurodegenerative disorders such as Parkinson's disease. The current review focused on alterations in the brain induced by EDC, specifically on the possible involvement of EDC in brain development and neurodegeneration.
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Affiliation(s)
- Yoshinori Masuo
- Laboratory of Neuroscience, Department of Biology, Faculty of Science, Toho University, Chiba, Japan.
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29
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Furusawa K, Narazaki Y, Tomita N, Dobashi T, Sasaki N, Yamamoto T. Effect of pH on Anisotropic Gelation of DNA Induced by Aluminum Cations. J Phys Chem B 2010; 114:13923-32. [DOI: 10.1021/jp102981a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- K. Furusawa
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - Y. Narazaki
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - N. Tomita
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - T. Dobashi
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - N. Sasaki
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - T. Yamamoto
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo 060-0810, Japan, and Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
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30
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Yamada M, Hori M, Tabuchi S. Composite material of DNA and cyclodextrin-immobilized poly(ethyleneimine): Accumulation of harmful compounds from multi-component solution. Int J Biol Macromol 2010; 47:201-6. [DOI: 10.1016/j.ijbiomac.2010.04.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2010] [Accepted: 04/27/2010] [Indexed: 10/19/2022]
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Affiliation(s)
- Changsheng Zhao
- Department of Biomedical Polymer Materials, College of Polymer Science and Engineering, Sichuan University, Chengdu, P.R. China
| | - Xiangdong Liu
- Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Motoyoshi Nomizu
- Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo, Japan
| | - Norio Nishi
- Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo, Japan
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32
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Amano T, Toyooka T, Ibuki Y. Preparation of DNA-adsorbed TiO2 particles--augmentation of performance for environmental purification by increasing DNA adsorption by external pH regulation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2010; 408:480-485. [PMID: 19896163 DOI: 10.1016/j.scitotenv.2009.10.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 10/01/2009] [Accepted: 10/13/2009] [Indexed: 05/28/2023]
Abstract
We have previously developed a novel photocatalyst, DNA-attached titanium dioxide (DNA-TiO(2)), useful for the recovery and decomposition of chemicals [Suzuki et al. Environ. Sci. Technol. 42, 8076, 2008]. Chemicals accumulated in DNA near the surface of TiO(2) and were degraded under UV light. The efficiency of their removal was dependent on the amount of DNA adsorbed on TiO(2), indicating the attachment of larger amounts of DNA to result in higher efficiency. In this study, we succeeded in improving the performance of DNA-TiO(2) by increasing the amount of DNA adsorbed by regulating the external pH. The adsorption of DNA by TiO(2) dramatically increased at pH2, to about fourfold that at other pH values (pH4-10). Repeating the process of DNA addition increased the adsorption further. The attached DNA was stable on the surface of TiO(2) at pH2-10 and 4-56 degrees C, the same as DNA-TiO(2) prepared at pH7. As the DNA-TiO(2) prepared at pH2 retained much DNA on its surface, chemicals (methylene blue, ethidium bromide, etc.) which could intercalate or react with DNA were effectively removed from solutions. The photocatalytic degradation was slow at first, but the final degradation rate was higher than for non-adsorbed TiO(2) and DNA-TiO(2) prepared at pH7. These results indicated that preparation of DNA-TiO(2) at pH2 has advantages in that much DNA can be attached and large amounts of chemicals can be concentrated in the DNA, resulting in extensive decomposition under UV light.
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Affiliation(s)
- Takeharu Amano
- Laboratory of Radiation Biology, Institute for Environmental Sciences, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Shizuoka-shi 422-8526, Japan
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33
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Removal of heavy metal ions from aqueous solutions by complexation with DNA and precipitation with cationic surfactant. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.04.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Selective accumulation of harmful compounds by the DNA-inorganic hybrid-immobilized glass bead. Anal Chim Acta 2009; 647:249-54. [DOI: 10.1016/j.aca.2009.06.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2009] [Revised: 06/05/2009] [Accepted: 06/10/2009] [Indexed: 11/23/2022]
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35
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DNA/polyvinyl alcohol interpenetrating polymer network as stationary phase for thin layer chromatography. Anal Biochem 2009; 393:67-72. [PMID: 19539598 DOI: 10.1016/j.ab.2009.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2009] [Revised: 06/09/2009] [Accepted: 06/13/2009] [Indexed: 11/21/2022]
Abstract
Natural DNA was introduced to thin layer chromatography (TLC) with an aim to separate chemicals like DNA-affinity compounds and enantiomers. By cross-linking polyvinyl alcohol (PVA) with glutaraldehyde (GA) and subsequent cross-linking DNA with a UV irradiation, a DNA/PVA interpenetrating polymer network (IPN) is formed and was used to coat the surface of the porous silica particles of the TLC. Three typical DNA-binding compounds and eight amino acid enantiomers were used as model chemicals to investigate the chromatographic behavior of the modified TLC, and high separation efficiency was observed in both classes of the chemicals. On the practical side, the DNA-modified TLC have high prospects in diverse applications, including efficacy evaluation of a medicine, toxicity assessment of a pollutant at the molecular level, as well as separation of enantiomers such as dyes, amino acids, peptides, proteins, nucleotides, and drugs.
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36
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Cao F, Bai P, Li H, Ma Y, Deng X, Zhao C. Preparation of polyethersulfone-organophilic montmorillonite hybrid particles for the removal of bisphenol A. JOURNAL OF HAZARDOUS MATERIALS 2009; 162:791-798. [PMID: 18597933 DOI: 10.1016/j.jhazmat.2008.05.102] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Revised: 04/16/2008] [Accepted: 05/22/2008] [Indexed: 05/26/2023]
Abstract
Polyethersulfone (PES)-organophilic montmorillonite (OMMT) hybrid particles, with various proportions of OMMT, were prepared by using a liquid-liquid phase separation technique, and then were used for the removal of bisphenol A (BPA) from aqueous solution. The adsorbed BPA amounts increased significantly when the OMMT were embedded into the particles. The structure of the particle was characterized by using scanning electron microscopy (SEM); and these particles hardly release small molecules below 250 degrees C which was testified by using thermogravimetric analysis (TGA). The experimental data of BPA adsorption were adequately fitted with Langmuir equations. Three simplified kinetics model including the pseudo-first-order (Lagergren equation), the pseudo-second-order, and the intraparticle diffusion model were used to describe the adsorption process. Kinetic studies showed that the adsorbed BPA amount reached an equilibrium value after 300 min, and the experimental data could be expressed by the intraparticular mass transfer diffusion model. Furthermore, the adsorbed BPA could be effectively removed by ethanol, which indicated that the hybrid particles could be reused. These results showed that the PES-OMMT hybrid particles have the potential to be used in the environmental application.
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Affiliation(s)
- Fuming Cao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
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37
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Suzuki H, Amano T, Toyooka T, Ibuki Y. Preparation of DNA-adsorbed TiO2 particles with high performance for purification of chemical pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2008; 42:8076-8082. [PMID: 19031905 DOI: 10.1021/es800948d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Photocatalysis using semiconductors such as titanium dioxide (TiO2) has been studied and applied to the treatment of wastewater and purification of air, because of its ability to decompose organic contaminants. However, there are still problems associated with the practical application of photocatalytic reactions, one of which is that contact between the reactants and catalysts is absolutely required, because the reaction occurs atthe surface of the catalysts. This restrictsthe purification of pollutants on a large scale. In this study, we developed novel DNA-adsorbed TiO2 particles (DNA-TiO2) to solve the problem. Because DNA has an unique double-stranded structure and interacts with several chemicals, DNA-TiO2 can accumulate chemicals on the surface of TiO2. DNA intercalators (Methylene Blue and ethidium bromide), small amounts of which exist in large-volume solutions, were instantaneously trapped in DNA-TiO2 and degraded under ultraviolet (UV) light rapidly, compared to nonadsorbed TiO2. The efficiency of removal and photocatalytic degradation was dependent on the amount of DNA adsorbed on the surface of TiO2 and was independent of the size of DNA. Even if the pH (2-10) and temperature (approximately 56 degrees C) of the solution were changed, DNA remained stable on TiO2, and the ability to remove intercalators was also maintained. DNA-TiO2 could accumulate other pigments such as Acridine Orange, Orange II, Neutral Red, Brilliant Green, and Crystal Violet. These results suggested that DNA-TiO2 is beneficial for the removal and degradation of chemicals having affinity for DNA and dispersing in a large field.
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Affiliation(s)
- Hiroshi Suzuki
- Institute for Environmental Sciences, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Shizuoka-shi 422-8526, Japan
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Navarro RR, Iimura Y, Ichikawa H, Tatsumi K. Treatment of PAHs in contaminated soil by extraction with aqueous DNA followed by biodegradation with a pure culture of Sphingomonas sp. CHEMOSPHERE 2008; 73:1414-1419. [PMID: 18814900 DOI: 10.1016/j.chemosphere.2008.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 08/07/2008] [Accepted: 08/07/2008] [Indexed: 05/26/2023]
Abstract
The biodegradation of polycyclic aromatic hydrocarbons (PAHs) in aqueous deoxyribonucleic acid (DNA) solution from contaminated soil washing was investigated. Initial data with a model effluent consisting of anthracene, phenanthrene, pyrene and benzo[a]pyrene that were individually dissolved in 1% aqueous DNA solution confirmed their positive degradation by Sphingomonas sp. at around 10(8)CFU mL(-1) initial cell loading. For anthracene and phenanthrene, complete removal was achieved within 1h treatment. Degradation of pyrene and benzo[a]pyrene took a relatively longer time of a few days and weeks, respectively. DNA-dissolved PAHs were also degraded relatively faster than PAH crystals in aqueous medium to suggest that the binding of the PAHs in the polymer does not pose serious constraint to bacterial uptake. The DNA was stable against the PAH-degrading bacteria. Parallel experiments with actual DNA solutions obtained during pyrene extraction from an artificially spiked soil also showed similar results. Close to 100% pyrene degradation was achieved after 1d treatment. With its chemical stability, the cell-treated DNA was re-used up to four cycles without a considerable decline in extraction performance.
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Affiliation(s)
- Ronald R Navarro
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
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39
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Yamada M, Hashimoto K. DNA−Cyclodextrin Composite Material for Environmental Applications. Biomacromolecules 2008; 9:3341-5. [DOI: 10.1021/bm800984p] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Okayama 700-0005, Japan
| | - Kazuki Hashimoto
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho, Okayama 700-0005, Japan
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Kiyoyama S, Maruyama T, Kamiya N, Goto M. Microcapsulation of DNA and the adsorption of toxic substances. J Microencapsul 2008; 25:324-9. [DOI: 10.1080/02652040801990741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
Recently, natural DNA has emerged as an appealing biomacromolecule for functional materials. It is abundant and renewable, and possesses the well known double helix structure that promises many unique properties difficult to find in other polymers. Natural DNA has been applied in electronic, optical and biomaterials, as a catalyst for enantioselective reactions, and as a material for cleaning the environment. Most of the applications are based on combining DNA with other chemicals or nanoparticles by electrostatic binding, intercalation or groove binding. In this critical review article, recent developments in utilizing natural DNA are reviewed by focusing on three basic properties of DNA: the electrostatic property as a polyelectrolyte, selective affinity for small molecules, and biocompatibility (128 references).
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Affiliation(s)
- XiangDong Liu
- Hokkaido Research Institute, Nissei Bio Co. Ltd., Megumino, Eniwa, Hokkaido, 061-1374, Japan.
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Furusawa K, Kita E, Saheki T, Nagasawa N, Nishi N, Dobashi T. Carcinogen adsorbent prepared from DNA complex by gamma-ray irradiation. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2008; 19:1159-70. [PMID: 18727858 DOI: 10.1163/156856208785540172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The effects of gamma-ray irradiation on aqueous solutions of chub mackerel chromatin, salmon milt DNA with CoCl(2), mixtures of DNA with Type A gelatin, bovine serum albumin (BSA), CM-chitosan, carboxymethyl cellulose (CMC) and Catinal (hydroxyethyl-cellulose, O-[2-hydroxy-3-(trimethyl ammonio)-propyl], chloride) and DNA in the presence of polyfunctional monomers with the aim to insolubilize DNA for preparing a novel carcinogen adsorbent have been studied. Among those, precipitates or inhomogeneous gel consisting of cross-linked DNA were prepared from the samples of aqueous DNA in the presence of CoCl(2) at low irradiation dose, around 10 Gy, and bulk homogeneous gels were successfully prepared from aqueous mixtures of DNA with gelatin, BSA, CMC and Catinal in a limited range of irradiation doses. Gel fraction and swelling ratio of the gels were measured. Adsorption of a carcinogen, acridine orange, was also examined for the gels. From the experimental results, the optimum conditions for preparing insolubilized homogeneous DNA gels were determined.
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Affiliation(s)
- Kazuya Furusawa
- Department of Chemistry and Chemical Biology, Faculty of Engineering, Gunma University, Kiryu, Gunma, Japan
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Yamada M, Amoo M. Enzymatic collapse of artificial polymer composite material containing double-stranded DNA. Int J Biol Macromol 2008; 42:478-82. [DOI: 10.1016/j.ijbiomac.2008.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 02/11/2008] [Accepted: 03/17/2008] [Indexed: 11/25/2022]
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Honma I, Yamada M. Bio-Inspired Membranes for Advanced Polymer Electrolyte Fuel Cells. Anhydrous Proton-Conducting Membrane via Molecular Self-Assembly. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.2110] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Furusawa K, Wakamatsu M, Dobashi T, Yamamoto T. Adsorption kinetics of carcinogens to DNA liquid crystalline gel beads. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:10081-7. [PMID: 17711313 DOI: 10.1021/la701379q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Adsorption behaviors of acridine orange (AO) and biphenyl (BP) to DNA liquid crystalline gel (LCG) beads in aqueous dispersing solution have been studied theoretically and experimentally. A theoretical consideration based on nonequilibrium thermodynamics predicted that the time course of the adsorption process is expressed with a scaled equation, and a scaled number of adsorbed carcinogen molecules ñ is expressed with the square root of a scaled immersion time t, ñ proportional, variant square root t at early stage, whereas it is expressed with a power law function 1 - ñ proportional, variant (te - t)3/2 for ñ0 > 1 and an exponential equation ñ0 - ñ proportional, variant e-t/alpha tau0 for ñ0 > 1 at later stages of adsorption. Here, ñ0 is the ratio of the initial number of carcinogen molecules in the dispersing solution to the number of the sites of adsorption of carcinogen molecules in the beads, te is the scaled equilibrium time of adsorption, tau0 is a time constant for adsorption, and alpha is a constant. Observed adsorption processes for AO were well expressed by the predicted ones, and the fitting parameters ñ0 and tau0 increased with increasing cobalt chloride concentration CCo used for preparation of the beads, and both saturated above CCo > or = 400 mM for the adsorption of AO, whereas the adsorption processes for BP were expressed with the square root function. These results indicate that (1) the adsorption process at early stage is explained by diffusion-limited binding of the carcinogen molecules to DNA beads, and the time range of the early stage depends on the solubility (the solubility of AO in water is high whereas that of BP is low); and (2) the process at later stages depends on the balance of the numbers of adsorption sites and carcinogen molecules.
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Affiliation(s)
- Kazuya Furusawa
- Department of Chemistry and Chemical Biology, Gunma University, Kiryu, Gunma 376-8515, Japan
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48
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Navarro RR, Ichikawa H, Iimura Y, Tatsumi K. Removal of polycyclic aromatic hydrocarbons from contaminated soil by aqueous DNA solution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2007; 41:4240-5. [PMID: 17626419 DOI: 10.1021/es0624523] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
An aqueous DNA solution was applied for the extraction of polycyclic aromatic hydrocarbons (PAHs) from a spiked soil. Solubilities of 0.56, 11.78, and 11.24 mg L(-1) for anthracene, phenanthrene, and pyrene, respectively, were achieved after 1 day equilibration in 1% DNA. Using a spiked soil that contained 72 mg kg(-1) anthracene, 102 mg kg(-1) phenanthrene, and 99 mg kg(-1) pyrene, extractions of close to 88, 78, and 94%, respectively, were attained with 5% DNA at a 1:50 soil/extractant ratio. Maximum PAH dissolution occurred after 4-6 h. Comparative tests showed the main advantage of DNA over methyl-beta- and gamma-cyclodextrins and Tween 80 for pyrene removal. An ionic strength of 0.1 M NaCl was found necessary for maximum PAH dissolution and extraction. The performance of hexane regenerated DNA also remained stable after three stages of recycling. These results show the huge potential of DNA as an aqueous washing agent for PAH-contaminated soil.
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Affiliation(s)
- Ronald R Navarro
- National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
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Setzer WN, Rozmus GF, Setzer MC, Schmidt JM, Vogler B, Reeb S, Jackes BR, Irvine AK. Bioactive principles in the bark of Pilidiostigma tropicum. J Mol Model 2006; 12:703-11. [PMID: 16601968 DOI: 10.1007/s00894-005-0047-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Accepted: 09/27/2005] [Indexed: 10/24/2022]
Abstract
The crude dichloromethane bark extract of Pilidiostigma tropicum (Myrtaceae) from north Queensland, Australia, shows antibacterial and cytotoxic activity. Bioactivity-directed separation led to the isolation of rhodomyrtoxin B and ursolic acid-3-p-coumarate as the biologically active materials. The structures of these compounds were elucidated on the basis of spectral analysis. The intercalation interaction of rhodomyrtoxin B with DNA was investigated using molecular mechanics and ab initio molecular-orbital techniques. A favorable pi-pi interaction between rhodomyrtoxin B and the cytosine-guanine base pair is predicted, but the orientation of the interaction cannot be predicted based on frontier molecular orbitals.
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Affiliation(s)
- William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
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Mao M, Liu Z, Wang T, Yu B, Wen X, Yang K, Zhao C. Polysulfone‐Activated Carbon Hybrid Particles for the Removal of BPA. SEP SCI TECHNOL 2006. [DOI: 10.1080/01496390500524875] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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