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Kanth Kadiyala N, Mandal BK, Kumar Reddy LV, Sen D, Tammina SK, Barnes CH, Alvarez MÑ, De Los Santos Valladares L, Kotakadi VS, Gaddam SA. One-Pot Solvothermal Synthetic Route of a Zinc Oxide Nanoparticle-Decorated Reduced Graphene Oxide Nanocomposite: An Advanced Material with a Novel Anticancer Theranostic Approach. ACS OMEGA 2023; 8:46763-46776. [PMID: 38107885 PMCID: PMC10720013 DOI: 10.1021/acsomega.3c06082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 12/19/2023]
Abstract
This study focuses on a one-pot solvothermal synthetic route for the preparation of uniformly decorated zinc oxide nanoparticles on the surface of reduced graphene oxide (rGO/ZnO-NC) by using Andrographis paniculata leaf aqueous extract as an eco-friendly reducing agent. After characterizing the samples by different physical and chemical techniques, the anticancer activity of the synthesized rGO/ZnO-NC was examined on two human cancerous cell lines (HCT116 and A549) and one normal cell line (hMSCs). The MTT assays revealed that rGO/ZnO-NC exhibited dose-dependent cytotoxicity at a maximum concentration range of 10 ppm and the viability of the cells was drastically decreased to 95-96%. Measurement of reactive oxygen species (ROS) generation and Annexin V-FTIC staining assay revealed that rGO/ZnO-NC induced apoptosis in HCT116 and A549 cell lines. Thus, this study shows that the green-synthesized rGO/ZnO-NC has great potential in developing an efficacious novel therapeutic agent for cancers.
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Affiliation(s)
- Nalinee Kanth Kadiyala
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Badal Kumar Mandal
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - L. Vinod Kumar Reddy
- Cellular
and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular
and Molecular Theranostics, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Dwaipayan Sen
- Cellular
and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular
and Molecular Theranostics, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Sai Kumar Tammina
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Crispin H.W. Barnes
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J.J. Thomson Ave., Cambridge CB3 0HE, U.K.
| | - Manuel Ñique Alvarez
- Universidad
Nacional de Cañete, Jr. San Agustin 124, San
Vicente de Cañete15701, Lima, Peru
| | - Luis De Los Santos Valladares
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J.J. Thomson Ave., Cambridge CB3 0HE, U.K.
- Laboratorio
de Ceramicos y Nanomateriales, Facultad de Ciencias Fisicas, Universidad Nacional Mayor de San Marcos, Ap Postal 14-0149, Lima, Peru
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Ceramized Fabrics and Their Integration in a Semi-Pilot Plant for the Photodegradation of Water Pollutants. Catalysts 2021. [DOI: 10.3390/catal11111418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The use of nano-photocatalysts for the water/wastewater purifications, particularly in developing regions, offers promising advantages over conventional technologies. TiO2-based photocatalysts deposited on fabrics represent an efficient solution for obtaining heterogeneous photocatalysts, which are easily adaptable in the already installed water treatment plants or air purification systems. Despite the huge effort spent to develop and characterize novel nano-photocatalysts, which are especially active under solar light, knowledge gaps still persist for their full-scale application, starting from the reactor design and scale-up and the evaluation of the photocatalytic efficiency in pre-pilot scenarios. In this study, we offered easily scalable solutions for adapting TiO2-based photocatalysts, which are deposited on different kinds of fabrics and implemented in a 6 L semi-pilot plant, using the photodegradation of Rhodamine B (RhB) as a model of water pollution. We took advantage of a multi-variable optimization approach to identify the best design options in terms of photodegradation efficiency and turnover frequency (TOF). Surprisingly, in the condition of use, the irradiation with a light-emitting diode (LED) visible lamp appeared as a valid alternative to the use of UV LED. The identification of the best design options in the semi-pilot plant allowed scaling up the technology in a 100 L pilot plant suitable for the treatment of industrial wastewater.
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Cotton Terry Textiles with Photo- and Bio-Activity in a Model Study and Real Conditions. MATERIALS 2020; 13:ma13153334. [PMID: 32726989 PMCID: PMC7435768 DOI: 10.3390/ma13153334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/09/2020] [Accepted: 07/22/2020] [Indexed: 12/24/2022]
Abstract
The aim of the study was to assess the photocatalytic (decompose staining particles, K/S values, the color differences, CIE L*a*b* color) and antimicrobial properties of textiles modified with TiO2 and ZnO nanoparticles (NPs) confirmed by X-ray diffraction, dynamic light scattering, SEM-EDX) in visible light conditions. The antimicrobial effectiveness of modified textiles under model conditions has been reported against 5 microorganisms: Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Candida albicans, Aspergillus niger (AATCC Test Method 100-2004). In real conditions in bathrooms, significant biostatic activity was shown on the surface of the modified towels. The number of microorganisms decreased by 1-5 log to the level of 0-5 CFU/cm2 in the case of bacteria: Enterobacteriaceae, Enterococcus, the coli group and E. coli, Pseudomonas. Statistically significant reduction of the total number of bacteria and fungi (by 1 log), and the concentration of gases (NO2, CO2, CO) in the air of bathrooms was determined. The removal or reduction of volatile organic compounds (VOCs) concentration (SPME-GC-MS analysis) in the air above the modified towels has also been determined. It was found that the lighting type (natural, artificial), time (1.5 and 7 h/day), air humidity (RH = 36-67%) and light intensity (81-167 lux) are important for the efficiency of photocatalysis. Textile materials modified with TiO2 and ZnO NPs can be used as self-cleaning towels. They can also help purify air from microorganisms, VOCs and undesirable gases.
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Aqueous pollutants in water bodies can be photocatalytically reduced by TiO2 nano-particles in the presence of natural organic matters. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Jaksik J, Tran P, Galvez V, Martinez I, Ortiz D, Ly A, McEntee M, Durke EM, Aishee ST, Cua M, Touhami A, Moore HJ, Uddin MJ. Advanced cotton fibers exhibit efficient photocatalytic self-cleaning and antimicrobial activity. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.07.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Postnova I, Khlebnikov O, Silant’ev V, Shchipunov Y. Dimensionally stable cellulosic aerogels functionalized by titania. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2018-0706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Abstract
The study is aimed at imparting dimensional stability and some functionalities to cellulosic aerogels. The polysaccharide suffers from mechanical strength loss in wetted state that restricts its application. Improvement is achieved by mean of microfibrillation of cellulosic fibers combining intense mechanical treatment with freeze-thawing. Addition of the latter decreases the number of cycles. Aerogels prepared from microfibrillated cellulose by freeze-drying hold their dimensional stability in solutions that makes possible treating them chemically without loss in shape. Here a method of directional sol-gel processing is applied to mineralize such aerogels by titania. Owing to covalent bonds to cellulose macromolecules formed via the condensation reactions, titania coating possesses good adhesion, not separating at heating when it is transferred in anatase form. Its photocatalytic activity results in self-cleaning of cellulose aerogels under outdoor sunlight irradiation. Calcination in air or carbonization in an inert gas atmosphere can serve to prepare metal oxide or composites with carbon of various shape and dimensionality.
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Affiliation(s)
- Irina Postnova
- Far-East Federal University , Vladivostok 690091 , Russia
- Institute of Chemistry, Far East Department , Russian Academy of Sciences , Vladivostok 690022 , Russia
| | - Oleg Khlebnikov
- Institute of Chemistry, Far East Department , Russian Academy of Sciences , Vladivostok 690022 , Russia
| | - Vladimir Silant’ev
- Institute of Chemistry, Far East Department , Russian Academy of Sciences , Vladivostok 690022 , Russia
| | - Yury Shchipunov
- Institute of Chemistry, Far East Department , Russian Academy of Sciences , Vladivostok 690022 , Russia
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Dağlıoğlu Y, Özkan Yılmaz H, Yılmaz O. Memeli Tümör ve Normal Hücre Hatlarında Nanopartikül Uygulamaları. ARŞIV KAYNAK TARAMA DERGISI 2018. [DOI: 10.17827/aktd.346216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Surface Coatings of TiO2 Nanoparticles onto the Designed Fabrics for Enhanced Self-Cleaning Properties. COATINGS 2018. [DOI: 10.3390/coatings8010035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abinaya M, Vaseeharan B, Divya M, Sharmili A, Govindarajan M, Alharbi NS, Kadaikunnan S, Khaled JM, Benelli G. Bacterial exopolysaccharide (EPS)-coated ZnO nanoparticles showed high antibiofilm activity and larvicidal toxicity against malaria and Zika virus vectors. J Trace Elem Med Biol 2018; 45:93-103. [PMID: 29173489 DOI: 10.1016/j.jtemb.2017.10.002] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/20/2017] [Accepted: 10/07/2017] [Indexed: 01/16/2023]
Abstract
In this study, a novel and effective approach was performed to synthesize ZnO nanoparticles (ZnO NPs) using the exopolysaccharides (EPS) from the probiotic strain Bacillus licheniformis Dahb1. EPS acted as reducing and stabilizing agent for the formation of EPS-ZnO NPs by co-precipitation method. Structural characterization was investigated by a surface plasma resonance centered at 375nm in UV-vis spectrum. FTIR spectrum exhibited functional groups with strong absorption peak at 3814.7-420cm-1. XRD showed the crystalline nature of EPS-ZnO NPs. TEM showed that the EPS-ZnO NPs were hexagonal in shape, with size within the range of 10-100nm. The presence of Zn was confirmed by EDX analysis. Antibacterial activity of EPS-ZnO NPs was demonstrated as 100μg/ml significantly inhibited the effective growth control of Gram-negative (Pseudomonas aeruginosa and Proteus vulgaris) and Gram-positive (Bacillus subtilis and Bacillus pumilus) bacteria. Light microscopy and confocal laser scanning microscopy evidenced that the antibiofilm activity of EPS-ZnO NPs was higher against Gram-negative bacteria over Gram positive bacteria. EPS-ZnO NPs also inhibited the biofilm growth of Candida albicans at the concentration of 75μg/ml. The hemolytic test showed low cytotoxicity of EPS-ZnO NPs at 5mg/ml. In addition, EPS-ZnO NPs achieved 100% mortality against third instars mosquito larvae of Anopheles stephensi and Aedes aegypti at very low doses. Moreover, histology studies revealed the presence of damaged cells and tissues in the mid-gut of treated mosquito larvae. The multipurpose properties of EPS-ZnO NPs revealed in the present study can be further considered for pharmaceutical, parasitological and entomological applications.
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Affiliation(s)
- Muthukumar Abinaya
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Science Block 6th Floor, Burma Colony, Karaikudi 630004, Tamil Nadu, India
| | - Baskaralingam Vaseeharan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Science Block 6th Floor, Burma Colony, Karaikudi 630004, Tamil Nadu, India.
| | - Mani Divya
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Science Block 6th Floor, Burma Colony, Karaikudi 630004, Tamil Nadu, India
| | - Aruna Sharmili
- Department of Biotechnology, Stella Maris College, Chennai 625 003, Tamil Nadu, India
| | - Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
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10
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Wang D, Zhao L, Ma H, Zhang H, Guo LH. Quantitative Analysis of Reactive Oxygen Species Photogenerated on Metal Oxide Nanoparticles and Their Bacteria Toxicity: The Role of Superoxide Radicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:10137-10145. [PMID: 28699742 DOI: 10.1021/acs.est.7b00473] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ecotoxicity of engineered nanoparticles (NPs) has become the focus of considerable attention because of their wide applications. Reactive oxygen species (ROS) play important roles in the toxicity mechanisms of engineered metal oxide NPs. This work aimed to understand quantitatively the contribution of photogenerated ROS on metal oxide NPs to their toxicity. The dynamic generation of O2•-, •OH, and H2O2 in aqueous suspensions of photoilluminated metal oxide nano- and bulk particles (TiO2, ZnO, V2O5, CeO2, Fe2O3, and Al2O3) was measured by a continuous-flow chemiluminescence (CFCL) detection system. Superoxides were generated on all six nanoparticles as well as bulk TiO2 and ZnO, with nano TiO2 producing the highest concentration (180 nM). Hydroxyl radicals were detected on both nano- and bulk TiO2 and ZnO, whereas H2O2 was detected only on TiO2 and ZnO nanoparticles. The generation of ROS can in general be interpreted by the electronic structures and surface defects of the NPs and the ROS redox potentials. Furthermore, acute toxicity of the six metal oxide particles to a luminescent bacterium, P. phosphoreum 502 was assessed after photoillumination. The toxicity effect was attributed to the long-lived O2•- radicals on the nanoparticlce, and its potency follows the order of TiO2 > ZnO > V2O5 > Fe2O3 > CeO2 > Al2O3, which is the same as the order of the O2•- concentration measured by CFCL. Our work revealed quantitatively the important role superoxide radicals play in the toxicity of various metal oxide nanoparticles after photoillumination.
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Affiliation(s)
- Dan Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, 18 Shuangqing Road, Beijing 100085, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Lixia Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, 18 Shuangqing Road, Beijing 100085, P.R. China
| | - Haiyan Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, 18 Shuangqing Road, Beijing 100085, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Hui Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, 18 Shuangqing Road, Beijing 100085, P.R. China
| | - Liang-Hong Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, 18 Shuangqing Road, Beijing 100085, P.R. China
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11
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Kleandrova VV, Luan F, Speck-Planche A, Cordeiro MNDS. QSAR-Based Studies of Nanomaterials in the Environment. PHARMACEUTICAL SCIENCES 2017. [DOI: 10.4018/978-1-5225-1762-7.ch051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Nanotechnology is a newly emerging field, posing substantial impacts on society, economy, and the environment. In recent years, the development of nanotechnology has led to the design and large-scale production of many new materials and devices with a vast range of applications. However, along with the benefits, the use of nanomaterials raises many questions and generates concerns due to the possible health-risks and environmental impacts. This chapter provides an overview of the Quantitative Structure-Activity Relationships (QSAR) studies performed so far towards predicting nanoparticles' environmental toxicity. Recent progresses on the application of these modeling studies are additionally pointed out. Special emphasis is given to the setup of a QSAR perturbation-based model for the assessment of ecotoxic effects of nanoparticles in diverse conditions. Finally, ongoing challenges that may lead to new and exciting directions for QSAR modeling are discussed.
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Affiliation(s)
| | - Feng Luan
- Yantai University, China & University of Porto, Portugal
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12
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Truong-Phuoc L, Christoforidis KC, Vigneron F, Papaefthimiou V, Decher G, Keller N, Keller V. Layer-by-Layer Photocatalytic Assembly for Solar Light-Activated Self-Decontaminating Textiles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34438-34445. [PMID: 27998105 DOI: 10.1021/acsami.6b12585] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel photocatalytic nanomaterials that can be used to functionalize textiles, conferring to them efficient solar-light-activated properties for the decontamination of toxic and lethal agents, are described. Textiles functionalized with one-dimensional (1D) SnS2-based nanomaterials were used for photocatalytic applications for the first time. We showed that 1D SnS2/TiO2 nanocomposites can be easily and strongly affixed onto textiles using the layer-by-layer deposition method. Ultrathin SnS2 nanosheets were associated with anatase TiO2 nanofibers to form nano-heterojunctions with a tight interface, considerably increasing the photo-oxidative activity of anatase TiO2 due to the beneficial interfacial transfer of photogenerated charges and increased oxidizing power. Moreover, it is easy to process the material on a larger scale and to regenerate these functionalized textiles. Our findings may aid the development of functionalized clothing with solar light-activated photocatalytic properties that provide a high level of protection against chemical warfare agents.
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Affiliation(s)
- Lai Truong-Phuoc
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
| | - Konstantinos C Christoforidis
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
| | - Fabrice Vigneron
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
| | - Vasiliki Papaefthimiou
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
| | - Gero Decher
- Institut Charles Sadron, CNRS UPR 22 , 23 rue du Loess, F-67034 Strasbourg, France
| | - Nicolas Keller
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
| | - Valérie Keller
- ICPEES, Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS/Université de Strasbourg , 25 rue Becquerel, 67087 Strasbourg cedex, France
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Sharma AK, Singh V, Gera R, Purohit MP, Ghosh D. Zinc Oxide Nanoparticle Induces Microglial Death by NADPH-Oxidase-Independent Reactive Oxygen Species as well as Energy Depletion. Mol Neurobiol 2016; 54:6273-6286. [DOI: 10.1007/s12035-016-0133-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/14/2016] [Indexed: 10/20/2022]
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14
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Xiao L, Liu C, Chen X, Yang Z. Zinc oxide nanoparticles induce renal toxicity through reactive oxygen species. Food Chem Toxicol 2016; 90:76-83. [DOI: 10.1016/j.fct.2016.02.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/17/2016] [Accepted: 02/02/2016] [Indexed: 10/22/2022]
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15
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Bhattacharya D, Bhattacharyya A, Karmakar P. Evaluation of Different Oxidative Stress Parameters and Apoptosis in Human Cervical Cancer Cells Exposed to Rod and Spherical Shaped Zinc Oxide Nanoparticles. BIONANOSCIENCE 2015. [DOI: 10.1007/s12668-015-0186-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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TiO₂ Nanosols Applied Directly on Textiles Using Different Purification Treatments. MATERIALS 2015; 8:7988-7996. [PMID: 28793692 PMCID: PMC5458890 DOI: 10.3390/ma8115437] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/28/2015] [Accepted: 11/16/2015] [Indexed: 12/04/2022]
Abstract
Self-cleaning applications using TiO2 coatings on various supporting media have been attracting increasing interest in recent years. This work discusses the issue of self-cleaning textile production on an industrial scale. A method for producing self-cleaning textiles starting from a commercial colloidal nanosuspension (nanosol) of TiO2 is described. Three different treatments were developed for purifying and neutralizing the commercial TiO2 nanosol: washing by ultrafiltration; purifying with an anion exchange resin; and neutralizing in an aqueous solution of ammonium bicarbonate. The different purified TiO2 nanosols were characterized in terms of particle size distribution (using dynamic light scattering), electrical conductivity, and ζ potential (using electrophoretic light scattering). The TiO2-coated textiles’ functional properties were judged on their photodegradation of rhodamine B (RhB), used as a stain model. The photocatalytic performance of the differently treated TiO2-coated textiles was compared, revealing the advantages of purification with an anion exchange resin. The study demonstrated the feasibility of applying commercial TiO2 nanosol directly on textile surfaces, overcoming problems of existing methods that limit the industrial scalability of the process.
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17
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Development of an Efficient Strategy for Coating TiO2 on Polyester–Cotton Fabrics for Bactericidal Applications. Top Catal 2015. [DOI: 10.1007/s11244-015-0429-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Srivastava V, Gusain D, Sharma YC. Critical Review on the Toxicity of Some Widely Used Engineered Nanoparticles. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01610] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Varsha Srivastava
- Department of Chemistry,
Green Chemistry and Renewable Energy Laboratories, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, India
| | - Deepak Gusain
- Department of Chemistry,
Green Chemistry and Renewable Energy Laboratories, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, India
| | - Yogesh Chandra Sharma
- Department of Chemistry,
Green Chemistry and Renewable Energy Laboratories, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, India
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Abstract
A large number of researches have been made to make the textile intelligent and smarter; this is achieved by imparting functionality to the textile materials. The indoor environment possesses a variety of pollutants which do not come from the outer environment, but they come from the inner environment itself. Today, the smarter fabrics that may clean the indoor air have been studied by various researchers. The smarter fabrics contain the nanocoating of semiconductor oxides, mostly TiO2; thus the synthesis and application of these nanoparticles on the textile material have been reviewed in this paper. Moreover, there are lots of environmental and health issues regarding nanoparticles that have also been discussed in brief.
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20
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Postnova I, Kozlova E, Cherepanova S, Tsybulya S, Rempel A, Shchipunov Y. Titania synthesized through regulated mineralization of cellulose and its photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c4ra15862h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cellulose mineralization by titania is brought under control via restricted hydration of fibrils that provides precise localization of the fast hydration/condensation reactions proceeding in situ.
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Affiliation(s)
- Irina Postnova
- Institute of Chemistry
- Far East Department
- Russian Academy of Sciences
- 690022 Vladivostok
- Russia
| | - Ekaterina Kozlova
- Institute of Catalysis
- Siberian Department
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Svetlana Cherepanova
- Institute of Catalysis
- Siberian Department
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Sergei Tsybulya
- Institute of Catalysis
- Siberian Department
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Andrey Rempel
- Institute of Solid State Chemistry
- Ural Department
- Russian Academy of Sciences
- Ekaterinburg
- Russia
| | - Yury Shchipunov
- Institute of Chemistry
- Far East Department
- Russian Academy of Sciences
- 690022 Vladivostok
- Russia
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Optimization of nano TiO 2 pretreatment on free acid dyeing of wool using central composite design. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Khajavi R, Berendjchi A. Effect of dicarboxylic acid chain length on the self-cleaning property of Nano-TiO2-coated cotton fabrics. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18795-18799. [PMID: 25275802 DOI: 10.1021/am504489u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, the effect of dicarboxylic acid chain length on the amount of TiO2 nanoparticles (TiO2NPs) adsorption-produced self-cleaning property and washing durability on cotton fabrics were investigated. First, cotton fabric samples were treated with three kinds of dicarboxylic acids--oxalic, succinic, and adipic acids--and then dipped in TiO2NP solution with a certain concentration. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to investigate bonds formation between dicarboxylic acid groups and hydroxyl groups of cellulose, and a scanning electron microscope (SEM) was applied for the analysis of surface morphology in specimens. Drop absorbency time was determined for samples using the AATCC TM 79:2000. Washing stability and the amount absorption of TiO2NPs were determined by weighing and absorption spectrophotometry procedures, and the stain removal evaluation was conducted to assess the self-cleaning property. Results showed that all of the dicarboxylic acids used in this experiment improved the amount of TiO2NPs absorbed onto cotton samples and their durability to washing. In addition, color variation of samples treated with oxalic acid after 180 min of UV irradiation and drop absorbency time for samples treated with succinic acid were significantly increased by about 126 and 600%, respectively. The best durability was obtained from adipic acid, while a better self-cleaning property was obtained from oxalic acid.
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Affiliation(s)
- Ramin Khajavi
- Department of Textile Engineering, South Tehran Branch, Islamic Azad University , Tehran 1611874652, Iran
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Chauhan I, Mohanty P. Immobilization of titania nanoparticles on the surface of cellulose fibres by a facile single step hydrothermal method and study of their photocatalytic and antibacterial activities. RSC Adv 2014. [DOI: 10.1039/c4ra07372j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Goh PS, Ng BC, Lau WJ, Ismail AF. Inorganic Nanomaterials in Polymeric Ultrafiltration Membranes for Water Treatment. SEPARATION AND PURIFICATION REVIEWS 2014. [DOI: 10.1080/15422119.2014.926274] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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25
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Chandran P, Netha S, Ravindran A, Sudheer Khan S. Effect of exopolysaccharides on photocatalytic activity of ZnO nanoparticles. Colloids Surf B Biointerfaces 2014; 122:611-616. [DOI: 10.1016/j.colsurfb.2014.07.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/17/2014] [Accepted: 07/24/2014] [Indexed: 10/24/2022]
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26
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Radetić M. Functionalization of textile materials with TiO2 nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2013. [DOI: 10.1016/j.jphotochemrev.2013.04.002] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Doakhan S, Montazer M, Rashidi A, Moniri R, Moghadam M. Influence of sericin/TiO2 nanocomposite on cotton fabric: Part 1. Enhanced antibacterial effect. Carbohydr Polym 2013; 94:737-48. [DOI: 10.1016/j.carbpol.2013.01.023] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/24/2012] [Accepted: 01/13/2013] [Indexed: 11/25/2022]
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Goyal N, Rastogi D, Jassal M, Agrawal AK. Dispersion Stabilization of Titania Nanoparticles for Textile: Aggregation Behavior and Self-Cleaning Activity. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.685842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zinc oxide nanoparticle induced autophagic cell death and mitochondrial damage via reactive oxygen species generation. Toxicol In Vitro 2013; 27:1187-95. [PMID: 23458966 DOI: 10.1016/j.tiv.2013.02.010] [Citation(s) in RCA: 186] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 12/20/2012] [Accepted: 02/12/2013] [Indexed: 01/07/2023]
Abstract
Zinc oxide nanoparticles (ZnO-np) are used in an increasing number of industrial products such as paint, coating and cosmetics, and in other biological applications. There have been many suggestions of a ZnO-np toxicity paradigm but the underlying molecular mechanisms about the toxicity of ZnO-np remain unclear. This study was done to determine the potential toxicity of ZnO-np and to assess the toxicity mechanism in normal skin cells. Synthesized ZnO-np generated reactive oxygen species (ROS), as determined by electron spin resonance. After uptake into cells, ZnO-np induced ROS in a concentration- and time-dependent manner. To demonstrate ZnO-np toxicity mechanism related to ROS, we detected abnormal autophagic vacuoles accumulation and mitochondria dysfunction after ZnO-np treatment. Furthermore mitochondria membrane potential and adenosine-5'-triphosphate (ATP) production are decreased for culture with ZnO-np. We conclude that ZnO-np leads to cell death through autophagic vacuole accumulation and mitochondria damage in normal skin cells via ROS induction. Accordingly, ZnO-np may cause toxicity and the results highlight and need for careful regulation of ZnO-np production and use.
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Rtimi S, Pulgarin C, Sanjines R, Kiwi J. Innovative semi-transparent nanocomposite films presenting photo-switchable behavior and leading to a reduction of the risk of infection under sunlight. RSC Adv 2013. [DOI: 10.1039/c3ra42762e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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Moafi HF, Shojaie AF, Zanjanchi MA. Photoactive behavior of polyacrylonitrile fibers based on silver and zirconium co-doped titania nanocomposites: Synthesis, characterization, and comparative study of solid-phase photocatalytic self-cleaning. J Appl Polym Sci 2012. [DOI: 10.1002/app.37664] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lopes I, Ribeiro R, Antunes FE, Rocha-Santos TAP, Rasteiro MG, Soares AMVM, Gonçalves F, Pereira R. Toxicity and genotoxicity of organic and inorganic nanoparticles to the bacteria Vibrio fischeri and Salmonella typhimurium. ECOTOXICOLOGY (LONDON, ENGLAND) 2012; 21:637-648. [PMID: 22314390 DOI: 10.1007/s10646-011-0808-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/27/2011] [Indexed: 05/31/2023]
Abstract
The present work aimed at evaluating the toxicity and genotoxicity of two organic (vesicles composed of sodium dodecyl sulphate/didodecyl dimethylammonium bromide-SDS/DDAB and of monoolein and sodium oelate-Mo/NaO) and four inorganic (titanium oxide-TiO₂, silicon titanium-TiSiO₄, Lumidot-CdSe/ZnS, and gold nanorods) nanoparticles (NP), suspended in two aqueous media (Milli Q water and American Society for Testing and Materials (ASTM) hardwater), to the bacteria Vibrio fischeri (Microtox test) and Salmonella typhimurium-his⁻ (Ames test with strains TA98 and TA100). Aiming a better understanding of these biological responses physical and chemical characterization of the studied NP suspensions was carried out. Results denoted a high aggregation state of the NP in the aqueous suspensions, with the exception of SDS/DDAB and Mo/NaO vesicles, and of nanogold suspended in Milli Q water. This higher aggregation was consistent with the low values of zeta potential, revealing the instability of the suspensions. Regarding toxicity data, except for nano TiO₂, the tested NP significantly inhibited bioluminescence of V. fischeri. Genotoxic effects were only induced by SDS/DDAB and TiO₂ for the strain TA98. A wide range of toxicity responses was observed for the six tested NP, differing by more than 5 orders of magnitude, and suggesting different modes of action of the tested NP.
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Affiliation(s)
- I Lopes
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Hendrickson OD, Safenkova IV, Zherdev AV, Dzantiev BB, Popov VO. Methods of detection and identification of manufactured nanoparticles. Biophysics (Nagoya-shi) 2012. [DOI: 10.1134/s0006350911060066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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36
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Bedford NM, Pelaez M, Han C, Dionysiou DD, Steckl AJ. Photocatalytic cellulosic electrospun fibers for the degradation of potent cyanobacteria toxin microcystin-LR. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31597a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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ZnO nanorod-induced apoptosis in human alveolar adenocarcinoma cells via p53, survivin and bax/bcl-2 pathways: role of oxidative stress. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 7:904-13. [DOI: 10.1016/j.nano.2011.04.011] [Citation(s) in RCA: 188] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 01/31/2011] [Accepted: 04/19/2011] [Indexed: 11/22/2022]
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Montazer M, Pakdel E. Functionality of nano titanium dioxide on textiles with future aspects: Focus on wool. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2011. [DOI: 10.1016/j.jphotochemrev.2011.08.005] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Montazer M, Alimohammadi F, Shamei A, Rahimi MK. Durable antibacterial and cross-linking cotton with colloidal silver nanoparticles and butane tetracarboxylic acid without yellowing. Colloids Surf B Biointerfaces 2011; 89:196-202. [PMID: 21978552 DOI: 10.1016/j.colsurfb.2011.09.015] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 09/07/2011] [Accepted: 09/09/2011] [Indexed: 11/29/2022]
Abstract
Colloidal nano silver was applied on the surface of cotton fabric and stabilized using 1,2,3,4-butanetetracarboxylic acid (BTCA). The two properties of antimicrobial activity and resistance against creasing were imparted to the samples of fabric as a result of the treatment with silver nano colloid and BTCA. The antimicrobial property of samples was evaluated using two pathogenic bacteria including Escherichia coli and Staphylococcus aureus as outstanding barometers in this field. The durability of applied nanoparticles, color variation, wettability and wrinkle recovery angle of the treated samples were investigated employing related credible standards. The presence of nano silver particles on the surface of treated cotton fabric was proved using EDS spectrum as well as the SEM images. Furthermore, the creation of cross-links was confirmed by the means of both ATR-FTIR and Raman spectra. In conclusion, it was observed that BTCA plays a prominent role in stabilizing silver nanoparticle. Besides, Wettability and winkle recovery angle of finished samples decreased and increased, respectively. In addition, it is noteworthy that no obvious color variation was observed.
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Affiliation(s)
- Majid Montazer
- Textile Department, Amirkabir University of Technology, Center of Excellence in Textile, Tehran, Iran.
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Mihailović D, Šaponjić Z, Radoičić M, Molina R, Radetić T, Jovančić P, Nedeljković J, Radetić M. Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.1568] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mejía M, Marín J, Restrepo G, Pulgarín C, Kiwi J. Photocatalytic evaluation of TiO2/nylon systems prepared at different impregnation times. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Castro C, Sanjines R, Pulgarin C, Osorio P, Giraldo S, Kiwi J. Structure–reactivity relations for DC-magnetron sputtered Cu-layers during E. coli inactivation in the dark and under light. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.06.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Musee N, Oberholster PJ, Sikhwivhilu L, Botha AM. The effects of engineered nanoparticles on survival, reproduction, and behaviour of freshwater snail, Physa acuta (Draparnaud, 1805). CHEMOSPHERE 2010; 81:1196-1203. [PMID: 20943245 DOI: 10.1016/j.chemosphere.2010.09.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Revised: 08/26/2010] [Accepted: 09/14/2010] [Indexed: 05/30/2023]
Abstract
Increasing uses of engineered nanoparticles (ENPs) in commercial products and industrial applications has eventually resulted to their releases into atmospheric, terrestrial, and aquatic environments. However, knowledge gaps in ENPs toxicity, fate, and behaviour currently limit our ability to quantify risk assessment of materials with nanoscale dimensions, and therefore, the extent of the resultant environmental impacts remains unknown. In the present study, we evaluated the effects of γ-alumina, α-alumina, modified TiO(2) (M-TiO(2)), and commercial TiO(2) (C-TiO(2)) ENPs on the survival, behaviour, and early life stages of the freshwater snail Physa acuta (Draparnaud). The toxicity evaluation was carried out after spiking commercial sand with ENPs concentrations of 0.005, 0.05, or 0.5 gk g(-1). Our findings suggest that increases of γ-alumina and α-alumina concentrations at sub-lethal level concentrations caused significant reduction in the embryo growth rate and embryo hatchability. In addition, these ENPs induced observable developmental deformities of the embryos. In addition, toxicity evaluations using acute 96-h and chronic 28-d tests showed exposure duration may be a significant factor in ENPs-induced toxicity. Therefore, long-term exposure of aquatic organisms to ENPs - potentially can alter certain ecological populations at different trophic levels - and may compromise the entire aquatic ecological functionality. The percentage hatchlings in test chambers containing 0.5 gk g(-1) γ-alumina and α-alumina concentration was 50% less to those observed in the controls. Our results suggest the embryonic growth and hatchability tests are useful endpoints in chronic sediment toxicity tests for determining the toxic thresholds of ENPs in sediment environment. Although no snail mortalities were observed during the static 96-h test containing sediment spiked with different concentrations of M-TiO(2), C-TiO(2), γ-alumina and α-alumina - the antioxidant enzymatic assay results indicated a significant change in antioxidant levels which altered peroxidation at 0.05 or 0.5 gk g(-1)concentrations for both γ-alumina and α-alumina.
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Affiliation(s)
- N Musee
- CSIR Natural Resources and the Environment, P.O. Box 395, Pretoria 0001, South Africa.
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Karimi L, Mirjalili M, Yazdanshenas ME, Nazari A. Effect of Nano TiO2 on Self-cleaning Property of Cross-linking Cotton Fabric with Succinic Acid Under UV Irradiation. Photochem Photobiol 2010; 86:1030-7. [DOI: 10.1111/j.1751-1097.2010.00756.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Torres A, Ruales C, Pulgarin C, Aimable A, Bowen P, Sarria V, Kiwi J. Innovative high-surface-area CuO pretreated cotton effective in bacterial inactivation under visible light. ACS APPLIED MATERIALS & INTERFACES 2010; 2:2547-2552. [PMID: 20712367 DOI: 10.1021/am100370y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study presents the first report on enhanced bacterial inactivation of E. coli by RF-plasma pretreated cotton with high-surface-area CuO powders compared with nonpretreated cotton textiles. The high-surface-area CuO (65 m/g) powder was fully characterized. The E. coli inactivation proceeded in the dark and was accelerated under visible and sunlight irradiation even at very low levels of visible light irradiation. The effect the RF-plasma pretreatment of the cotton on the binding of CuO, applied light dose, the amount of CuO loading and initial E. coli concentration on the inactivation kinetics of E. coli is reported in detail.
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Affiliation(s)
- A Torres
- Department of Chemistry, Universidad de los Andes, Cra1E No 18A-10, Bogota, Colombia
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Ugur SS, Sariişik M, Aktaş AH. The fabrication of nanocomposite thin films with TiO2 nanoparticles by the layer-by-layer deposition method for multifunctional cotton fabrics. NANOTECHNOLOGY 2010; 21:325603. [PMID: 20647626 DOI: 10.1088/0957-4484/21/32/325603] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A multilayer nanocomposite film composed of anatase TiO(2) nanoparticles was fabricated on cationically modified woven cotton fabrics by the layer-by-layer molecular self-assembly technique. For cationic surface charge, cotton fabrics were pre-treated with 2,3-epoxypropyltrimethylammonium chloride (EP3MAC) by a pad-batch method. Attenuated total reflectance Fourier transform infrared spectroscopy (FTIR), x-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) were used to verify the presence of deposited nanolayers. Photocatalytic activities of the nanocomposite films were evaluated through the degradation of red wine pollutant. Nano-TiO(2) deposition enhanced the protection of cotton fabrics against UV radiation in comparison with the untreated cotton fabrics. Air permeability and whiteness value analysis was performed on the fabrics before and after the treatment with TiO(2) nanoparticles by the layer-by-layer deposition method. Tensile strength tests of the warp and weft yarns were performed to evaluate the effect of solution pH value changes during the alternate dipping procedures. For the first time the durability of the effect of the self-assembled multilayer films on the cotton fabric functional properties was analyzed after 10 and 20 washing cycles at 40 degrees C for 30 min.
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Affiliation(s)
- Sule S Ugur
- Department of Textile Engineering, Süleyman Demirel University, Isparta, Turkey.
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Mihailović D, Šaponjić Z, Vodnik V, Potkonjak B, Jovančić P, Nedeljković JM, Radetić M. Multifunctional PES fabrics modified with colloidal Ag and TiO2 nanoparticles. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1752] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Moafi HF, Shojaie AF, Zanjanchi MA. The comparative study of photocatalytic self-cleaning properties of synthesized nanoscale titania and zirconia onto polyacrylonitrile fibers. J Appl Polym Sci 2010. [DOI: 10.1002/app.32463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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