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Wacławek S, Krawczyk K, Silvestri D, Padil VV, Řezanka M, Černík M, Jaroniec M. Cyclodextrin-based strategies for removal of persistent organic pollutants. Adv Colloid Interface Sci 2022; 310:102807. [DOI: 10.1016/j.cis.2022.102807] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/19/2022] [Accepted: 10/28/2022] [Indexed: 11/08/2022]
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Trellu C, Pechaud Y, Oturan N, Mousset E, van Hullebusch ED, Huguenot D, Oturan MA. Remediation of soils contaminated by hydrophobic organic compounds: How to recover extracting agents from soil washing solutions? JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124137. [PMID: 33049627 DOI: 10.1016/j.jhazmat.2020.124137] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/07/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
A lot of soil (particularly, former industrial and military sites) has been contaminated by various highly toxic contaminants such as petroleum hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorobiphenyls (PCBs) or chlorinated solvents. Soil remediation is now required for their promotion into new industrial or real estate activities. Therefore, the soil washing (SW) process enhanced by the use of extracting agents (EAs) such as surfactants or cyclodextrins (CDs) has been developed for the removal of hydrophobic organic compounds (HOCs) from contaminated soils. The use of extracting agents allows improving the transfer of HOCs from the soil-sorbed fraction to the washing solution. However, using large amount of extracting agents is also a critical drawback for cost-effectiveness of the SW process. The aim of this review is to examine how extracting agents might be recovered from SW solutions for reuse. Various separation processes are able to recover large amounts of extracting agents according to the physicochemical characteristics of target pollutants and extracting agents. However, an additional treatment step is required for the degradation of recovered pollutants. SW solutions may also undergo degradation processes such as advanced oxidation processes (AOPs) with in situ production of oxidants. Partial recovery of extracting agents can be achieved according to operating conditions and reaction kinetics between organic compounds and oxidant species. The suitability of each process is discussed according to the various physicochemical characteristics of SW solutions. A particular attention is paid to the anodic oxidation process, which allows either a selective degradation of the target pollutants or a complete removal of the organic load depending on the operating conditions.
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Affiliation(s)
- Clément Trellu
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France.
| | - Yoan Pechaud
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - Nihal Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - Emmanuel Mousset
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France
| | - Eric D van Hullebusch
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - David Huguenot
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - Mehmet A Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France.
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Lobatto VL, Argüello GA, Buján EI. Direct short-wave photolysis of chlorpyrifos-methyl and chlorpyrifos-methyl oxon in the presence of cyclodextrins. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01046-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Han R, Liu J, Chen N, Wang G, Guo Y, Wang H. Synthesis of V-modified TiO2 nanorod-aggregates by a facile microwave-assisted hydrothermal process and photocatalytic degradation towards PCP-Na under solar light. RSC Adv 2019; 9:34862-34871. [PMID: 35530715 PMCID: PMC9074127 DOI: 10.1039/c9ra05480d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/07/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, novel V-modified titania nanorod-aggregates (VTNA), consisting of fine individual nanorods in radial direction, were fabricated via an efficient microwave-assisted hydrothermal (MWH) route. VTNA with high crystallinity and homogeneous mesopores were obtained by 30 min MWH processing at 190 °C; moreover, a mixed rutile–anatase phase appeared after vanadium doping. XPS analysis revealed that vanadium existed in the forms of V4+ and V5+ on the surface of MWV05 with V5+ being the dominant component, the content of which was approximately 3.5 times that of V4+. Vanadium implanting was achieved efficiently by doping 0.5 and 1 at% V using a rapid MWH process and contributed towards the dramatic improvement of the visible-light response, with Eg decreasing from 2.91 to 2.71 and 2.57 eV with the increasing V doping content. MWV05 exhibited optimal photocatalytic degradation activity of water-soluble PCP-Na under solar light irradiation. The enhanced photodecomposition was attributed to the red-shift in the TiO2 band-gap caused by vanadium impregnation, efficient charge separation due to the V4+/V5+ synergistic effects and the free migration of charge carriers along the radial direction of the nanorods arranged in a self-assembled VTNA microstructure. V-modified titania nanorod-aggregates were fabricated by microwave hydrothermal route. MWV05 exhibited optimal solar activity towards PCP-Na, due to red-shift by V-doping, carriers separation by V4+/V5+ synergistic effects and charge migration along the nanorods.![]()
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Affiliation(s)
- Rong Han
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- China
- Key Laboratory of Environmental Protection
| | - Jinwen Liu
- School of Environmental and Municipal Engineering
- Xi'an University of Architecture and Technology
- Xi'an 710054
- China
| | - Nan Chen
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- China
- Key Laboratory of Environmental Protection
| | - Gang Wang
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- China
- Key Laboratory of Environmental Protection
| | - Yakai Guo
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- China
- Key Laboratory of Environmental Protection
| | - Hongtao Wang
- School of Environment
- Tsinghua University
- Beijing 100084
- China
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Karoyo AH, Yang J, Wilson LD. Cyclodextrin-Based Polymer-Supported Bacterium for the Adsorption and in-situ Biodegradation of Phenolic Compounds. Front Chem 2018; 6:403. [PMID: 30255014 PMCID: PMC6141685 DOI: 10.3389/fchem.2018.00403] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/20/2018] [Indexed: 11/23/2022] Open
Abstract
Dual function polymer materials with immobilized Sphingobium Chorophenolicum (SpC) bacterium cells are reported herein that undergo tandem adsorption and biodegradation of phenolic compounds. The cross-linked polymer materials contain β-cyclodextrin (β-CD) with incremental hexamethylene diisocyanate (HDI) cross-linker at variable mole ratios (X = 1, 3, or 6), denoted as HDI-X systems. The adsorptive uptake properties of the insoluble HDI-X polymers (X = 3 and 6) with various phenolic compounds [pentachlorophenol (PCP), 2,4,6-trichlorophenol (TCP), and 2,4,6-trimethylphenol (TMP)] were studied using batch adsorption isotherms. The molecular selective phenol removal (SR) capacity of the HDI-3 and HDI-6 materials was evaluated by electrospray ionization mass spectrometry (ESI-MS). The results were compared against granular activated carbon (GAC) and native β-CD, where 1D/2D 1H NMR spectral characterization of the complexes formed between phenolic guests and a soluble polymer (HDI-1) in aqueous solution provide insight on the intermolecular interactions and the role of cross-linking effects. Immobilization of SpC onto HDI-3 was shown to form a composite polymer/bacterium material. The composite system displays synergistic removal effects due to tandem PCP adsorption and SpC biodegradation to yield by-products such as 2,6-dichloro-1,4-hydroquinone (DCHQ). Apoptosis and cytotoxicity of DCHQ were evaluated using three breast cancer cell lines.
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Affiliation(s)
- Abdalla H Karoyo
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Jian Yang
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada
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Trellu C, Mousset E, Pechaud Y, Huguenot D, van Hullebusch ED, Esposito G, Oturan MA. Removal of hydrophobic organic pollutants from soil washing/flushing solutions: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:149-174. [PMID: 26707974 DOI: 10.1016/j.jhazmat.2015.12.008] [Citation(s) in RCA: 238] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 12/04/2015] [Accepted: 12/07/2015] [Indexed: 05/04/2023]
Abstract
The release of hydrophobic organoxenobiotics such as polycyclic aromatic hydrocarbons, petroleum hydrocarbons or polychlorobiphenyls results in long-term contamination of soils and groundwaters. This constitutes a common concern as these compounds have high potential toxicological impact. Therefore, the development of cost-effective processes with high pollutant removal efficiency is a major challenge for researchers and soil remediation companies. Soil washing (SW) and soil flushing (SF) processes enhanced by the use of extracting agents (surfactants, biosurfactants, cyclodextrins etc.) are conceivable and efficient approaches. However, this generates high strength effluents containing large amount of extracting agent. For the treatment of these SW/SF solutions, the goal is to remove target pollutants and to recover extracting agents for further SW/SF steps. Heterogeneous photocatalysis, technologies based on Fenton reaction chemistry (including homogeneous photocatalysis such as photo-Fenton), ozonation, electrochemical processes and biological treatments have been investigated. Main advantages and drawbacks as well as target pollutant removal mechanisms are reviewed and compared. Promising integrated treatments, particularly the use of a selective adsorption step of target pollutants and the combination of advanced oxidation processes with biological treatments, are also discussed.
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Affiliation(s)
- Clément Trellu
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Emmanuel Mousset
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Yoan Pechaud
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - David Huguenot
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Eric D van Hullebusch
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France
| | - Giovanni Esposito
- University of Cassino and the Southern Lazio, Department of Civil and Mechanical Engineering, Via Di Biasio, 43, Cassino, 03043 FR, Italy
| | - Mehmet A Oturan
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, Marne-la-Vallée, 77454, France.
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Lannoy A, Kania N, Bleta R, Fourmentin S, Machut-Binkowski C, Monflier E, Ponchel A. Photocatalysis of Volatile Organic Compounds in water: Towards a deeper understanding of the role of cyclodextrins in the photodegradation of toluene over titanium dioxide. J Colloid Interface Sci 2015; 461:317-325. [PMID: 26407059 DOI: 10.1016/j.jcis.2015.09.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 09/08/2015] [Indexed: 11/29/2022]
Abstract
HYPOTHESIS Cyclodextrin-assisted photodegradation of toluene was investigated in water in the presence of a photo-irradiated commercial titanium dioxide photocatalyst. It was expected that cyclodextrins could form water-soluble supramolecular host/guest complexes with the toluene and thus promote the approach of the pollutant on the TiO2 surface and enhance the phototocatalytic oxidation efficiency. EXPERIMENTS Photodegradation kinetics of toluene were investigated under UV-C and near-visible light radiation in aqueous suspensions of TiO2. Impact of cyclodextrin (CD) on the photocatalytic efficiency of TiO2 was evaluated with different cyclodextrins: α-CD, β-CD, γ-CD and RAME-β-CD. Host-guest association constants were determined by static headspace gas chromatography and affinity of cyclodextrins for the TiO2 surface by isothermal adsorption studies. Issue of the cyclodextrin stability during the degradation process was examined using Total Organic Carbon, NMR and MALDI-TOF analyses. FINDINGS Toluene could be fully mineralized by TiO2 in water within hours, even if the presence of cyclodextrin caused a delay in the photodegradation process. The chemical nature of cyclodextrins was found to exert a significant influence on the extent of inhibitory effect, which was discussed in terms of balance between solubilization efficiency, substrate protection and coverage of active sites of TiO2 by competitive adsorption. The cyclodextrin degradation was also studied and discussed.
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Affiliation(s)
- Anthony Lannoy
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France
| | - Nicolas Kania
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France
| | - Rudina Bleta
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France
| | - Sophie Fourmentin
- Université du Littoral Côte d'Opale, Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), F-59140 Dunkerque, France
| | - Cécile Machut-Binkowski
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France.
| | - Eric Monflier
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France
| | - Anne Ponchel
- Univ. Artois, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F-62300 Lens, France; CNRS, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), Lille F-59000, France
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Hydroxypropyl cyclic β-(1→2)-d-glucans and epichlorohydrin β-cyclodextrin dimers as effective carbohydrate-solubilizers for polycyclic aromatic hydrocarbons. Carbohydr Res 2015; 401:82-8. [DOI: 10.1016/j.carres.2014.10.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 10/25/2014] [Accepted: 10/29/2014] [Indexed: 11/23/2022]
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9
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Morales M, Martínez-Paz P, Martín R, Planelló R, Urien J, Martínez-Guitarte JL, Morcillo G. Transcriptional changes induced by in vivo exposure to pentachlorophenol (PCP) in Chironomus riparius (Diptera) aquatic larvae. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 157:1-9. [PMID: 25306060 DOI: 10.1016/j.aquatox.2014.09.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/22/2014] [Accepted: 09/23/2014] [Indexed: 06/04/2023]
Abstract
Pentachlorophenol (PCP) has been extensively used worldwide as a pesticide and biocide and is frequently detected in the aquatic environment. In the present work, the toxicity of PCP was investigated in Chironomus riparius aquatic larvae. The effects following short- and long-term exposures were evaluated at the molecular level by analyzing changes in the transcriptional profile of different endocrine genes, as well as in genes involved in the stress response and detoxification. Interestingly, although no differences were found after 12- and 24-h treatments, at 96-h exposures PCP was able to induce significant increases in transcripts from the ecdysone receptor gene (EcR), the early ecdysone-inducible E74 gene, the estrogen-related receptor gene (ERR), the Hsp70 gene and the CYP4G gene. In contrast, the Hsp27 gene appeared to be downregulated, while the ultraspiracle gene (usp) (insect ortholog of the retinoid X receptor) was not altered in any of the conditions assayed. Moreover, Glutathione-S-Transferase (GST) activity was not affected. The results obtained show the ability of PCP to modulate transcription of different biomarker genes from important cellular metabolic activities, which could be useful in genomic approaches to monitoring. In particular, the significant upregulation of hormonal genes represents the first evidence at the genomic level of the potential endocrine disruptive effects of PCP on aquatic invertebrates.
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Affiliation(s)
- Mónica Morales
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain.
| | - Pedro Martínez-Paz
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
| | - Raquel Martín
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
| | - Rosario Planelló
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
| | - Josune Urien
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
| | - José Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
| | - Gloria Morcillo
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, Madrid 28040, Spain
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Miyamoto T, Maeno S, Zhu Q, Fukushima M. Inclusion complex of iron(III)-tetrakis(p-sulfonatephenyl)porphyrin with 2,3,6-tri-O-methyl-β-cyclodextrin as a biomimetic model of oxidative enzymes: Catalytic oxidation of tetrabromobisphenol A with peroxomonosulfate. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mir NA, Khan A, Muneer M, Vijayalakhsmi S. Photocatalytic degradation of a widely used insecticide Thiamethoxam in aqueous suspension of TiO2: adsorption, kinetics, product analysis and toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 458-460:388-398. [PMID: 23685136 DOI: 10.1016/j.scitotenv.2013.04.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 03/28/2013] [Accepted: 04/13/2013] [Indexed: 06/02/2023]
Abstract
This paper deals with the study of photocatalyzed degradation of an insecticide, Thiamethoxam in aqueous suspension of TiO2. The adsorption of Thiamethoxam on TiO2 surface under dark conditions was also investigated in order to find out equilibrium adsorption constant. The degradation kinetics was studied using spectrophotometric method under various conditions such as substrate concentration, type of catalyst, catalyst dosage, pH, and in the presence of electron acceptors such as hydrogen peroxide, potassium bromate, and ammonium persulphate under continuous purging of atmospheric oxygen, and the degradation rates were found to be strongly influenced by these parameters. The results manifested that the photocatalysis of Thiamethoxam follows pseudo-first-order kinetics. The toxicity assessments of the irradiated samples were carried out using human erythrocytes as a model system under in vitro conditions. GC-MS study showed the formation of several intermediate products which were characterised based on their molecular mass and mass fragmentation pattern. A probable mechanism for the formation of various products formed during the photocatalytic process of Thiamethoxam was also proposed.
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Affiliation(s)
- Niyaz A Mir
- Department of Chemistry, Aligarh Muslim University, Aligarh-202002, UP, India
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Yáñez C, Cañete-Rosales P, Castillo JP, Catalán N, Undabeytia T, Morillo E. Cyclodextrin inclusion complex to improve physicochemical properties of herbicide bentazon: exploring better formulations. PLoS One 2012; 7:e41072. [PMID: 22952577 PMCID: PMC3428336 DOI: 10.1371/journal.pone.0041072] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 06/17/2012] [Indexed: 11/24/2022] Open
Abstract
The knowledge of the host-guest complexes using cyclodextrins (CDs) has prompted an increase in the development of new formulations. The capacity of these organic host structures of including guest within their hydrophobic cavities, improves physicochemical properties of the guest. In the case of pesticides, several inclusion complexes with cyclodextrins have been reported. However, in order to explore rationally new pesticide formulations, it is essential to know the effect of cyclodextrins on the properties of guest molecules. In this study, the inclusion complexes of bentazon (Btz) with native βCD and two derivatives, 2-hydroxypropyl-β-cyclodextrin (HPCD) and sulfobutylether-β-cyclodextrin (SBECD), were prepared by two methods: kneading and freeze-drying, and their characterization was investigated with different analytical techniques including Fourier transform infrared spectroscopy (FT-IR), differential thermal analysis (DTA), X-ray diffractometry (XRD) and differential pulse voltammetry (DPV). All these approaches indicate that Btz forms inclusion complexes with CDs in solution and in solid state, with a stoichiometry of 1:1, although some of them are obtained in mixtures with free Btz. The calculated association constant of the Btz/HPCD complex by DPV was 244±19 M(-1) being an intermediate value compared with those obtained with βCD and SBECD. The use of CDs significantly increases Btz photostability, and depending on the CDs, decreases the surface tension. The results indicated that bentazon forms inclusion complexes with CDs showing improved physicochemical properties compared to free bentazon indicating that CDs may serve as excipient in herbicide formulations.
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Affiliation(s)
- Claudia Yáñez
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.
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Landy D, Mallard I, Ponchel A, Monflier E, Fourmentin S. Cyclodextrins for Remediation Technologies. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-94-007-2442-6_2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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14
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Ma Y, Liu C, Lam PKS, Wu RSS, Giesy JP, Hecker M, Zhang X, Zhou B. Modulation of steroidogenic gene expression and hormone synthesis in H295R cells exposed to PCP and TCP. Toxicology 2011; 282:146-53. [PMID: 21296122 DOI: 10.1016/j.tox.2011.01.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 01/13/2011] [Accepted: 01/31/2011] [Indexed: 11/19/2022]
Abstract
Chlorophenols (CPs) have been suspected to disrupt the endocrine system and thus affect human and wildlife reproduction but less is known about the underlying mechanism. In this study, we investigated the effects of pentachlorophenol (PCP) and 2,4,6-trichlorophenol (TCP) on human adrenocortical carcinoma cell line (H295R). The H295R cells were exposed to environmentally relevant concentration (0.0, 0.4, 1.1, 3.4μM) of PCP and TCP for 48h, and expression of specific genes involved in steroidogenesis, including cytochrome P450 (CYP11A, CYP17, CYP19), 3βHSD2, 17βHSD4 and StAR was quantitatively measured using real-time polymerase chain reaction. The selected gene expressions were significantly down-regulated compared with those in the control group. Exposure to PCP and TCP significantly decreased production of both testosterone (T) and 17β-estradiol (E2). Furthermore, a dose-dependent decrease of cellular cAMP was observed in H295R cells exposed to both PCP and TCP. A time-course study revealed that the observed selected steroidogenic gene expressions and protein abundance (StAR) are consistent with reduced cellular cAMP concentrations. The results showed that PCP and TCP may inhibit steroidogenesis by disrupting cAMP signaling. The research indicates that H295R cells can be used as an in vitro model for endocrine disruption assay for chlorophenols and the mechanism involvement of disturbing cAMP signaling.
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Affiliation(s)
- Yanbo Ma
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Spagnuolo M, Puglisi E, Vernile P, Bari G, de Lillo E, Trevisan M, Ruggiero P. Soil monitoring of pentachlorophenol by bioavailability and ecotoxicity measurements. ACTA ACUST UNITED AC 2010; 12:1575-81. [DOI: 10.1039/b925026c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Evaluation of pathways involved in pentachlorophenol-induced apoptosis in rat neurons. Neurotoxicology 2009; 30:451-8. [DOI: 10.1016/j.neuro.2009.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Revised: 01/23/2009] [Accepted: 02/01/2009] [Indexed: 11/17/2022]
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Chen M, Cui L, Li C, Diao G. Adsorption, desorption and condensation of nitrobenzene solution from active carbon: a comparison of two cyclodextrins and two surfactants. JOURNAL OF HAZARDOUS MATERIALS 2009; 162:23-28. [PMID: 18573604 DOI: 10.1016/j.jhazmat.2008.05.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 12/07/2007] [Accepted: 05/05/2008] [Indexed: 05/26/2023]
Abstract
The adsorption of nitrobenzene on active carbon was researched. The experimental results shown the adsorption of nitrobenzene on active carbon can be described by Freundlich's adsorption model. On the other hand, beta-cyclodextrin (beta-CD) and hydroxypropyl-beta-cyclodextrin (HP-beta-CD) can react with nitrobenzene to form inclusion complex, which will enhance the aqueous solubility of nitrobenzene. By using different concentrations of beta-CD and HP-beta-CD as extractants, nitrobenzene on active carbon has been desorbed statically. As a comparison, surfactant CTAB and SDS were also selected as extractants. The desorbing of mechanism has been discussed. The low concentration of NB was effectively condensed by enrichment of active carbon and desorption of HP-beta-CD. HP-beta-CD is regarded as a potential extractant to deal with soil, sediment or active carbon.
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Affiliation(s)
- Ming Chen
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, People's Republic of China
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Tokumoto T, Ishikawa K, Furusawa T, Ii S, Hachisuka K, Tokumoto M, Tsai HJ, Uchida S, Maezawa A. Sonophotocatalysis of endocrine-disrupting chemicals. MARINE ENVIRONMENTAL RESEARCH 2008; 66:372-377. [PMID: 18649935 DOI: 10.1016/j.marenvres.2008.05.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 05/19/2008] [Accepted: 05/29/2008] [Indexed: 05/26/2023]
Abstract
Sonolysis and photolysis often exhibit synergistic effects in the degradation of organic molecules. An assay of fish oocyte maturation provides an appropriate experimental system to investigate the hormonal activities of chemical agents. Oocyte maturation in fish is triggered by maturation-inducing hormone (MIH), which acts on receptors on the oocyte surface. A synthetic estrogen, diethylstilbestrol (DES), possesses inducing activity of fish oocyte maturation, and a widely used biocide, pentachlorophenol (PCP), exhibits a potent inhibitory effect on fish oocyte maturation. In this study, the effects of the combined treatment by sonolysis with photolysis (sonophotocatalysis) to diminish the hormonal activity of DES and the maturation preventing activity of PCP was examined. By sonophotocatalysis, hormonal activity of DES was completely lost within 30 min and the inhibiting activity of PCP was lost within 120 min. These results demonstrated that sonophotocatalysis is effective for diminishing the endocrine-disrupting activity of chemical agents.
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Affiliation(s)
- Toshinobu Tokumoto
- Department of Biology, Faculty of Science, National University Corporation Shizuoka University, Shizuoka 422-8529, Japan.
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Anotai J, Wuttipong R, Visvanathan C. Oxidation and detoxification of pentachlorophenol in aqueous phase by ozonation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2007; 85:345-9. [PMID: 17118527 DOI: 10.1016/j.jenvman.2006.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2005] [Revised: 10/01/2006] [Accepted: 10/06/2006] [Indexed: 05/12/2023]
Abstract
The degradation and detoxification performance of ozonation in treating pentachlorophenol (PCP) contaminated wastewater was determined. All experiments were conducted in a bench scale glass column equipped with ceramic diffuser and a lab-scale ozone generator under ambient temperature and pH 7. The decomposition rate of PCP in this study was primarily controlled by the ozone mass transfer rate from gas to liquid phases. Principal intermediates found were 2,3,4,6- and 2,3,5,6-tetrachlorophenols (TeCP) and phenol. PCP seems to be more vulnerable to ozone than its intermediates. A bioluminescence technique was used to evaluate the toxicity of PCP with Vibrio fisheri NRRL B-11177 as the test bacterium, and the EC(50) of PCP was found to be 1.0 mg l(-1). Detoxification occurred as the PCP and TeCP reacted with ozone and decomposed to less chlorinated congeners and phenol.
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Affiliation(s)
- Jin Anotai
- National Research Center for Environmental and Hazardous Waste Management, Department of Environmental Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.
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20
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Villaverde J, Maqueda C, Undabeytia T, Morillo E. Effect of various cyclodextrins on photodegradation of a hydrophobic herbicide in aqueous suspensions of different soil colloidal components. CHEMOSPHERE 2007; 69:575-84. [PMID: 17462707 DOI: 10.1016/j.chemosphere.2007.03.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Revised: 03/08/2007] [Accepted: 03/09/2007] [Indexed: 05/15/2023]
Abstract
This paper investigated the photochemical behaviour of the herbicide norflurazon (NFL) in the presence of different soil colloidal components and several cyclodextrins (CDs). The interaction of NFL with CDs yielded the formation of inclusion complexes at 1:1 stoichiometric ratio in solution, with an increase of the herbicide solubility. The irradiation of NFL aqueous solutions in the presence of CDs showed that the higher the formation constant of NFL-CD complexes (Kc) and their solubility, the higher their photocatalytic effects, following the CDs in the order: RAMEB>HPBCD>beta-CD>alpha-CD>gamma-CD. The presence of the different soil colloidal components in aqueous suspension provoked the reduction of the NFL photodegradation rate, due to a screening effect, especially when goethite and humic acids were present. No disappearance of NFL was detected in parallel studies carried out in the dark, except in the case of humic acids, where a 5% adsorption of the initial amount of NFL was adsorbed in the dark control. The presence of the different CDs in such systems showed an inductive photodegradation effect on the herbicide. This could be largely explained by the inclusion effects of CDs in catalyzing interactions between NFL and certain reactive radicals generated by the different colloidal components. Although this work was carried out at laboratory scale and therefore, has limited applications, it reveals that cyclodextrins increase solubilization of hydrophobic herbicides and could lead to their increased photodegradation. This could be a promising method for pesticide-contaminated water remediation. However, it is important to consider the effect of the soil colloidal components in the different aquatic systems and their concentrations, since they can alter the photodegradative effects of the cyclodextrins.
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Affiliation(s)
- Jaime Villaverde
- Instituto de Recursos Naturales y Agrobiología (CSIC), Apdo 1052, 41080 Sevilla, Spain.
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Fukushima M, Tatsumi K. Degradation of pentachlorophenol in contaminated soil suspensions by potassium monopersulfate catalyzed oxidation by a supramolecular complex between tetra(p-sulfophenyl)porphineiron(III) and hydroxypropyl-beta-cyclodextrin. JOURNAL OF HAZARDOUS MATERIALS 2007; 144:222-8. [PMID: 17101215 DOI: 10.1016/j.jhazmat.2006.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 10/05/2006] [Accepted: 10/06/2006] [Indexed: 05/12/2023]
Abstract
To enhance the catalytic oxidation of pentachlorophenol (PCP) in contaminated soil suspensions using tetra(p-sulfophenyl)porphineiron(III) (Fe(III)-TPPS) as a catalyst and potassium monopersulfate (KHSO(5)) as the single-oxygen donor, the effect of added hydroxypropyl-beta-cyclodextrin (HP-beta-CD) was examined. At pH 4 and 6, the percentage of PCP disappearance increased substantially in the presence of HP-beta-CD. In addition, the self-degradation of Fe(III)-TPPS was significantly retarded in the presence of HP-beta-CD. This retarded self-degradation can be attributed to the stabilization of Fe(III)-TPPS via the formation of a supramolecular complex with HP-beta-CD. The kinetic constant for the self-degradation of Fe(III)-TPPS in the presence of HP-beta-CD at pH 6 was much smaller than that at pH 4, indicating that Fe(III)-TPPS is more stable at pH 6. Thus, the amount of Fe(III)-TPPS, KHSO(5) and HP-beta-CD required to degrade PCP in contaminated soil suspensions was optimal at pH 6. When PCP-contaminated soil suspensions were treated under the optimized conditions, 12-18% and 24-28% of the PCP was mineralized to CO(2) in the absence and presence of HP-beta-CD, respectively. These results show that the presence of HP-beta-CD in the Fe(III)-TPPS/KHSO(5) catalytic system is effective in enhancing the degradation of PCP in contaminated soil suspensions.
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Affiliation(s)
- Masami Fukushima
- Division of Solid Waste, Resources and Geoenvironmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
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Ehsan S, Prasher SO, Marshall WD. Simultaneous mobilization of heavy metals and polychlorinated biphenyl (PCB) compounds from soil with cyclodextrin and EDTA in admixture. CHEMOSPHERE 2007; 68:150-8. [PMID: 17258274 DOI: 10.1016/j.chemosphere.2006.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 12/05/2006] [Accepted: 12/07/2006] [Indexed: 05/13/2023]
Abstract
This study evaluated the efficacy of a washing process with cyclodextrin in combination with ethylenediaminetetraacetate (EDTA) for the simultaneous mobilization of heavy metals and PCBs from a field contaminated soil. Ultrasonically aided mixing of the field contaminated soil with a combination of cyclodextrin solution (10%, w/v) and a sparing quantity (2 mmol) of EDTA, simultaneously mobilized appreciable quantities of PCBs and much of the analyte metal (Cd, Cr, Cu, Mn, Ni, Pb, Zn) burdens. Relative to the action of individual reagents, a combination of randomly methylated (RAMEB) or hydroxypropyl beta-cyclodextrin (HPCD) with EDTA did not alter the PCB extraction efficiency nor did the presence of cyclodextrin change the efficiency of mobilization of most heavy metals (Al, Cd, Cr, Fe, Mn, Ni, and Zn) but did increase the recovery of Cu and Pb modestly. Three sonication-washes with the same charge of reagents mobilized appreciable quantities of PCBs (40-76%) and quantitatively extracted the labile fraction of Cd, Cu, Mn, and Pb. RAMEB proved to be more efficient than HPCD for PCB extractions. Three successive extractions with a single charge of cyclodextrin mobilized almost as much PCB (RAMEB, 76%; HPCD, 40%) as did the companion extractions that used fresh reagents each time (RAMEB, 78%; HPCD, 42%). Collectively, these studies demonstrated that PCB compounds and selected heavy metals can be co-extracted efficiently from soil with three successive washes with the same washing suspension containing EDTA and cyclodextrin.
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Affiliation(s)
- Sadia Ehsan
- Department of Food Science and Agricultural Chemistry, Macdonald Campus of McGill University, 21, 111 Lakeshore Road, Ste-Anne-de-Bellevue, Que., Canada H9X 3V9
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Liao CJ, Chung TL, Chen WL, Kuo SL. Treatment of pentachlorophenol-contaminated soil using nano-scale zero-valent iron with hydrogen peroxide. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.09.050] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Use of Cyclodextrins as An Environmentally Friendly Extracting Agent in Organic Aged-contaminated Soil Remediation. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9094-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Viglianti C, Hanna K, de Brauer C, Germain P. Removal of polycyclic aromatic hydrocarbons from aged-contaminated soil using cyclodextrins: experimental study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2006; 140:427-35. [PMID: 16188357 DOI: 10.1016/j.envpol.2005.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Revised: 07/25/2005] [Accepted: 08/06/2005] [Indexed: 05/04/2023]
Abstract
The removal of polycyclic aromatic hydrocarbons (PAHs) from soil using water as flushing agent is relatively ineffective due to their low aqueous solubility. However, addition of cyclodextrin (CD) in washing solutions has been shown to increase the removal efficiency several times. Herein are investigated the effectiveness of cyclodextrin to remove PAH occurring in industrially aged-contaminated soil. Beta-cyclodextrin (BCD), hydroxypropyl-beta-cyclodextrin (HPCD) and methyl-beta-cyclodextrin (MCD) solutions were used for soil flushing in column test to evaluate some influent parameters that can significantly increase the removal efficiency. The process parameters chosen were CD concentration, ratio of washing solution volume to soil weight, and temperature of washing solution. These parameters were found to have a significant and almost linear effect on PAH removal from the contaminated soil, except the temperature where no significant enhancement in PAH extraction was observed for temperature range from 5 to 35 degrees C. The PAHs extraction enhancement factor compared to water was about 200.
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Affiliation(s)
- Christophe Viglianti
- Laboratoire d'Analyse Environnementale des Procédés et des Systèmes Industriels - INSA de Lyon, 9, rue de la Physique - 69621 Villeurbanne Cedex, France
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Fernández Freire P, Labrador V, Pérez Martín JM, Hazen MJ. Cytotoxic effects in mammalian Vero cells exposed to pentachlorophenol. Toxicology 2005; 210:37-44. [PMID: 15804456 DOI: 10.1016/j.tox.2005.01.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2004] [Revised: 01/12/2005] [Accepted: 01/12/2005] [Indexed: 11/19/2022]
Abstract
The effects of pentachlorophenol have been studied on diverse biological systems both in vivo and in vitro, however the cellular basis of the pronounced cytotoxicity of this organochlorine compound is poorly understood. In this work, morphological and biochemical analyses were carried out to identify the primary targets of pentachlorophenol toxicity in mammalian cells. Our results show that pentachlorophenol is a very potent cytotoxic drug that displays an unusual and interesting mode of action in Vero cells. Although this compound is a powerful uncoupler of oxidative phosphorylation, we present the novel finding that lysosome destabilization is an early cytotoxic response that precedes the mitochondrial dysfunction. In addition, soon after exposure to moderate doses of pentachlorophenol, a significant number of cells initiate an apoptotic death process identified by the condensed and fragmented state of their nuclei. These results demonstrate that there are multiple potential targets of PCP-induced toxicity in mammalian cells, and the need to develop further experimental studies for the risk assessment of this environmental pollutant.
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Affiliation(s)
- P Fernández Freire
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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