Academic literature on the topic 'Acid dyes'

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Journal articles on the topic "Acid dyes"

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et al., Al-Dmour. "Synthesis, characterization, and performance of oligothiophene cyanoacrylic acid derivatives for solar cell applications." International Journal of ADVANCED AND APPLIED SCIENCES 8, no. 6 (2021): 128–35. http://dx.doi.org/10.21833/ijaas.2021.06.015.

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New dye sensitizers based on an oligothiophene cyanoacrylic acid derivative were synthesized and characterized for solar cell applications. The structures of the new dyes prepared as sensitizers based on oligothiophenes, namely5,5''-di-2-cyanoacrylic acid [2,2':5',2''-terthiophene] (dye1), [2,2':5',2''-terthiophene]-5-cyanoacrylic acid(dye2), and [2,2':5',2'':5'',2'''-quaterthiophene]-5-cyanoacrylic acid(dye3) were confirmed by elemental analysis, mass spectrometry, and 1H-NMR spectral data. The P3HT/dye2/nc-TiO2 solar cell produced the highest efficiency of 0.05% with an open circuit voltage
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Deng, Yong, Bing Tao Tang, Wei Ma, and Shu Fen Zhang. "Synthesis of a New Kind of Red Polymaleic Acid Dyes with High Fixation on Cotton." Advanced Materials Research 550-553 (July 2012): 3227–31. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.3227.

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A new kind of red polymaleic acid dyes was designed and synthesized through diazotization-coupling reaction of a polymeric coupling component, which was prepared based on poly(maleic anhydride) and 1-amino-8-naphthol-3,6-disulfonic acid (H acid), and was then characterized by FTIR and 13C NMR. The dyes were evaluated on dyeing of cotton. Results showed that cotton dyed with the polymaleic acid dyes possessed high fixation and good fastness properties.
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Wang, Guang Ming, Lan Zhou, Jun Li Chen, Guang Jie Cheng, and Zhong Fa Hu. "Study on One-Bath Dyeing Technology and its Application for Disperse/Reactive Dyes on Polyester/Viscose Blended Fabrics." Advanced Materials Research 441 (January 2012): 116–21. http://dx.doi.org/10.4028/www.scientific.net/amr.441.116.

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In order to shorten dyeing process, increase yield and reduce consumption of water and alkaline, the one-bath two-stage heating dyeing process was used for reactive/disperse dyes. The key technology of this research was adding alkaline when polyester/viscose (cotton) blended fabrics were dyed by reactive dyes,and then adding acetic acid when dyed by disperse dyes. During this process, acetic acid and alkali neutralize, and sodium acetate and acetic acid form a buffer system, which greatly improves dyeing reproducibility. The results of factory trial showed that color strength and color fastnes
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Batubara, Ridwanti, Shafira Chairunnisa Chery, Arif Nuryawan, et al. "Natural dyes of Purun crafts materials and their effect on fibre dimension and derivative dimensions." IOP Conference Series: Earth and Environmental Science 1445, no. 1 (2025): 012023. https://doi.org/10.1088/1755-1315/1445/1/012023.

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Abstract Purun is is commonly used in crafts like mats, hats, and tissue boxes, but synthetic dyes used in these products have negative environmental impacts. This research aims to study the use of natural dyes in purun fibre Natural dyes were extracted using distilled water and 96% ethanol from purple sweet potato, turmeric, and mango leaves. Purun was treated with 2% natural dyes and dyes mixed with 5% vinegar acid, then dried to observe color changes and assess the effect on fiber dimensions. Extraction yields ranged from 10% to 16%, with no significant differences between dyes with or with
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Zeeshan Akhtar, Zeeshan Akhtar, Syed Imran Ali Syed Imran Ali, Syed Rizwan Ali Syed Rizwan Ali, Sadia Khan Sadia Khan, Feroz Alam Feroz Alam, and Naseem Abbas and Muhammad Yasir Khan Naseem Abbas and Muhammad Yasir Khan. "Synthesis, Characterization and Dyeing Assessment of Novel Acid Dyes on Wool Fabric IV." Journal of the chemical society of pakistan 41, no. 4 (2019): 633. http://dx.doi.org/10.52568/000766/jcsp/41.04.2019.

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We report synthesis and performance evaluation of a series of novel acid dyes based on diazotized substituted aryl amines and employing substituted naphthalene sulfonic acids as coupling component. The synthesized dyes were thoroughly characterized using UV-visible, IR, 1HNMR spectroscopy, elemental analysis and negative MALDI-TOF mass spectrometric analysis. The effectiveness of these dyes was evaluated by applying them on wool fabric using a standard exhaust dyeing procedure. The results for washing, light, perspiration and rubbing fastness of the dyed fabric demonstrate excellent fixation,
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Kuwabara, Shigeru. "Dyeing Nylon Films with Acid Dyes Modified with Various Normal Alkylamines." Textile Research Journal 58, no. 6 (1988): 329–34. http://dx.doi.org/10.1177/004051758805800603.

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The fundamental data required to establish the technique of dyeing nylon and wool fibers in a water/perchloroethylene dye bath were gathered. A sodium atom of CI acid blue 62 was substituted by a series of normal alkylamine and hydrogen atoms in order to obtain complex dyes that are soluble in perchloroethylene. These dyes, which have 6, 9, and 12 carbon chain lengths, have good solubility in both water and perchloroethylene. This can be attributed to the fact that these dyes are dissolved in a dissociated state in water and in an undissociated state in perchloroethylene. The saturated amounts
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Lykidou, Smaro, Evangelos Karanikas, Nikolaos Nikolaidis, and Eforia Tsatsaroni. "Synthesis, characterization and ultrafiltration of reactive dyes. Application by exhaustion and/or ink-jet printing—II." Textile Research Journal 87, no. 6 (2016): 694–707. http://dx.doi.org/10.1177/0040517516636004.

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Three novel vinyl sulfone reactive dyes of various metallic salts (Na, K, Li) have been synthesized by coupling 1-amino-phenyl-4-beta hydroxyethyl sulfone sulfate ester with 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid (H-acid). The reactive dyes were then purified using ultrafiltration (UF). The ultrafiltrated dyes of the various metallic salts were characterized by their spectrophotometrical data using Ultra Violet-visible (UV-vis), Fourier transform infra-red and optical emission spectroscopy, X-ray diffraction, and elemental analysis. The purity of the dyes was checked by Thin Layer Ch
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Patil, Ashwini A., Saptarshi Maiti, and Ravindra V. Adivarekar. "The use of poly(amido)amine dendrimer in modification of cotton for improving dyeing properties of acid dye." International Journal of Clothing Science and Technology 31, no. 2 (2019): 220–31. http://dx.doi.org/10.1108/ijcst-04-2018-0055.

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PurposeCotton being an anionic fiber can be dyed with direct, reactive, vat and sulfur dyes but cannot be dyed with acid dyes due to their chemical differences. But there are certain advantages of acid dyes like acid dyeing is the simplest method than the other classes of dyes; and it offers various intense and bright shades. So, the purpose of this paper is to focus on acid dyeing of cotton fabric after its chemical modification.Design/methodology/approachSuch modification of cotton fabric has been achieved using poly(amido)amine dendrimer (PAMAM) treatment. The current work is based on the s
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Li, Wang, Yang, Liu, and Guo. "Preparation and Characterization of Dyed Corn Straw by Acid Red GR and Active Brilliant X-3B Dyes." Materials 12, no. 21 (2019): 3483. http://dx.doi.org/10.3390/ma12213483.

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Corn straw is a kind of biomass material with huge reserves, which can be used in plate processing, handicraft manufacturing, indoor decoration, and other fields. To investigate the dyeing mechanism of corn straw with different dyes, corn straw was pretreated and dyed with Acid Red GR and Brilliant Red X-3B. The dyeing properties and light resistance of the two dyes were analyzed by dyeing rate, photochromaticity, FTIR, SEM, and water-washing firmness. The results showed that the structure and stability of the dyes were the main factors which influenced fading. A bleaching pretreatment could r
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Patel, Hitendra. "Synthesis, characterization and dyeing behavior of heterocyclic acid dyes and mordent acid dyes on wool and silk fabrics." Journal of the Serbian Chemical Society 77, no. 11 (2012): 1551–60. http://dx.doi.org/10.2298/jsc120110047p.

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Novel heterocyclic acid and mordent acid dyes were synthesized by the coupling of diazonium salt solution of different aromatic amines with 2- butyl-3-(4-hydroxybenzoyl)benzofuran. The resulting heterocyclic acid dyes were characterized by spectral techniques, i.e., elemental analysis, IR, 1HNMR, 13C-NMR spectral studies and UV- visible spectroscopy. The dyeing performance of all the heterocyclic acid dyes was evaluated on wool and silk fabrics. The dyeing of chrome pre treated wool and silk fabrics showed better hues on mordented fabrics. Dyeing of wool and silk fabrics resulted in pinkish bl
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Dissertations / Theses on the topic "Acid dyes"

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Bahojb-Allafan, Babak. "The development of a metal-free, tannic acid-based aftertreatment of nylon 6.6 dyed with acid dyes." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.699235.

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During the course of this project, a variety of different areas dealing with the aftertreatment of nylon 6.6 dyed with commercial acid dyes was investigated in an attempt to increase the fastness of dyeings to wet treatment. Protease enzyme was used in conjunction with tannic acid in a single-bath, two stage aftertreatment for nylon 6.6 dyed with acid dyes. The effectiveness of this tannic acid/enzyme aftertreatment was comparable to that of six established aftertreatments namely four commercial syntans, the traditional full backtan and a tannic acid/tin system. The metal-free, tannic acid/enz
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Wang, Liangcheng. "Reactions of leuco dyes on acid activated clays." Thesis, University of Central Lancashire, 1993. http://clok.uclan.ac.uk/20276/.

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The colour formers used in carbonless copying paper consist of admixtures of primary and secondary dyes. Work was carried out in this programme both on retarding the photofading of the primary dyes and on improving the reactivity of the clay minerals towards the development of the secondary dye. The photolytic fading behaviour of S primary dyes were examined both in solution and on solid clay surfaces, and the intermediacy of singlet oxygen in the fading processes of the dyes examined by the DPBF trapping method. The retardation of dye fading was accomplished using bis(dithiocarbamato)nickel(I
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Ledward, Michelle Pauline. "Photochemical stability of acid dyes in nylon 6,6." Thesis, Manchester Metropolitan University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334544.

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Fegan, Adrian. "Cyanine dyes : synthesis and applications as nucleic acid labels." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611861.

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Lee, Kwok Choi. "Fixed bed modeling for the sorption of acid dyes on carbon /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CENG%202002%20LEE.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 185-202). Also available in electronic version. Access restricted to campus users.
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Virdee, Susan. "The use of acid sensitive dyes to monitor acid generation and diffusion in thin polymer films." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ32562.pdf.

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Bakhshaee, Mojgan. "Effect of surface charge on acid dyeing of nylon 6,6." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/9977.

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Cordes, David B. "Optical monosaccharide detection using anionic fluorescent dyes and boronic acid-modified viologen quenchers /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.

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McRae, Kenneth James. "The interaction of certain monoazo acid dyes and related compounds with certain nonionic surfactants." Thesis, University of the West of Scotland, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.346455.

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Thanki, P. N. "Photo-oxidative degradation and stabilization of nylon 66 in presence of acid blue dyes." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1999. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5950.

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Books on the topic "Acid dyes"

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Alden, C. J. NTP technical report on the toxicology and carcinogenesis studies of C.I. Acid Red 114 (CAS no. 6459-94-5) in F344/N rats (drinking water studies). U.S. Dept. of Health and Human Services, Public Health Services, National Institutes of Health, 1991.

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Mennear, John H. NTP technical report on the toxicology and carcinogenesis studies of C.I. Acid Orange 3 (CAS no. 6373-74-6) in F344/N rats and B6C3F1 mice (gavage studies). National Toxicology Program, U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, 1988.

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National Toxicology Program (U.S.). NTP technical report on the toxicology and carcinogenesis studies of p-nitrobenzoic acid (CAS no. 62-23-7) in F344/N rats and B6C3F́ mice: Feed studies. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, 1994.

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International Agency for Research on Cancer. and IARC Working Group on the Evaluation of Carcinogenic Risks to Humans (1989 : Lyon, France), eds. Some flame retardants and textile chemicals, and exposures in the textile manufacturing industry. International Agency for Research on Cancer, 1990.

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Xavier, Ronot, and Usson Yves, eds. Imaging of nucleic acids and quantitation in photonic microscopy. CRC Press, 2001.

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Parker, Philip M. The World Market for Acid Dyes Including Preparations and Mordant Dyes Including Preparations: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Acid Dyes Including Preparations and Mordant Dyes Including Preparations in China. ICON Group International, Inc., 2006.

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The World Market for Acid Dyes Including Preparations and Mordant Dyes Including Preparations: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007 Import and Export Market for Acid Dyes Including Preparations and Mordant Dyes Including Preparations in India. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Acid Dyes Including Preparations and Mordant Dyes Including Preparations in United States. ICON Group International, Inc., 2006.

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Book chapters on the topic "Acid dyes"

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Gooch, Jan W. "Acid Dyes." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_150.

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Duffield, Peter A. "Dyeing Wool with Acid and Mordant Dyes." In The Coloration of Wool and other Keratin Fibres. John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118625118.ch7.

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Yarmoluk, Sergiy M., Vladyslava B. Kovalska, and Kateryna D. Volkova. "Optimized Dyes for Protein and Nucleic Acid Detection." In Advanced Fluorescence Reporters in Chemistry and Biology III. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18035-4_5.

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Deligeorgiev, Todor G. "Molecular Probes Based on Cyanine Dyes for Nucleic Acid Research." In Near-Infrared Dyes for High Technology Applications. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5102-3_6.

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Durrant, Ian, and Leslie Gubba. "Fluorescent Dyes and Dye Labelled Probes for Detection of Nucleic Acid Sequences in Biological Material." In Fluorescence Microscopy and Fluorescent Probes. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-1866-6_26.

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Reisfeld, R., M. Eyal, R. Gvishi, and C. K. Jørgensen. "Photochemical Behaviour of Luminescent Dyes in Sol-Gel and Boric Acid Glasses." In Photochemistry and Photophysics of Coordination Compounds. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72666-8_57.

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Chazalet-Saint-Pierre, M., and M. Dupeyrat. "The Structure of Monolayers and Multilayers of Cyanine Dyes Mixed with Stearic Acid." In Surfactants in Solution. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-7981-6_38.

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Atreyi, M., M. V. R. Rao., and P. V. Scaria. "Interaction of Azo Dyes with Cationic Polypeptides: Poly—L—Arginine — 4 —Dimethylamino Azobenzene-4′ — Carboxylic Acid System." In Protein-Dye Interactions: Developments and Applications. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1107-9_8.

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Gooch, Jan W. "Dye, Acid." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4123.

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Kobayashi, Masami, Hideo Kise, Charles Tanielian, et al. "Photocleavage of DNA by Chlorophylls and Porphyrins: Electron Transfer from Nucleic Acid Base to Dyes in the Singlet Excited States." In Food Factors for Cancer Prevention. Springer Japan, 1997. http://dx.doi.org/10.1007/978-4-431-67017-9_113.

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Conference papers on the topic "Acid dyes"

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Grubb, Stephen G., and Davida W. Kalina. "Organic Superlattices for Nonlinear Optics: Alternating Langmuir-Blodgett Multilayers of Azobenzene Dyes." In Nonlinear Optical Properties of Materials. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/nlopm.1988.mf2.

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We report near-ideal quadratic enhancement of second harmonic generation (SHG) from alternating, non-centrosymmetric multilayers of two azobenzene dyes deposited on glass substrates by the Langmuir-Blodgett (LB) technique. In the first case we deposited layers of the azo dye 4-nitro-4'-N-(stearoyl) aminoazobenzene (NSAAB) diluted 2:1 with stearic acid alternating with layers of pure stearic acid. Dilution of the azo dye in stearic acid leads to an increase in the effective molecular hyperpolarizability β, due presumably to prevention of dye aggregation and/or tail ordering effects. By comparis
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Sekiguchi, Atsushi, Yoko Matsumoto, Hiroko Konishi, Kengo Moriyasu, and Yukihiro Morimoto. "Analysis of the generating action of the acid from PAG using acid sensitive dyes." In SPIE Advanced Lithography, edited by Robert D. Allen and Mark H. Somervell. SPIE, 2011. http://dx.doi.org/10.1117/12.879199.

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Ding, Li'An, Fang Li, and Qing Tian. "The Threshold of Anaerobic Biodegradation and Decolorization of Acid Dyes." In 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016). Atlantis Press, 2017. http://dx.doi.org/10.2991/icreet-16.2017.69.

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Sekiguchi, Atsushi, Yoko Matsumoto, and John J. Biafore. "Analysis of acid-generating action of PAG in an EUV resist using acid-sensitive dyes." In SPIE Advanced Lithography, edited by Mark H. Somervell. SPIE, 2013. http://dx.doi.org/10.1117/12.2012106.

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Bugarčić, Mladen, Aleksandar Jovanović, Milica Mišić, et al. "Removal of methyl orange using layered double hydroxide originated from spent acid liquor." In 37th International Congress on Process Industry. SMEITS, 2024. http://dx.doi.org/10.24094/ptk.024.321.

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Production of organic dyes has been constantly increasing in the last decades, hence their usage leaves a huge environmental impact usually on aquatic biota. Wastewaters carrying dis-solved dyes are toxic to all organisms existing in water, therefore such wastewater streams have to be appropriately treated before they can be released into the environment. Development of ef-fective adsorbents, which can be used in wastewater treatment, is mandatory. Another concern in the production of sorbing materials is the formation of spent acids or bases since they are com-monly used for the activation of
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Mašulović, Aleksandra, Anita Lazić, Ivana Đorđević, et al. "Assessing the pharmacological potential of synthetic colorants with pyridone core." In 37th International Congress on Process Industry. SMEITS, 2024. http://dx.doi.org/10.24094/ptk.024.299.

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Azo dyes are known as structurally diverse class of organic compounds bearing one or more azo groups (–N=N–) as a bridge between organic residues of which at least one is an aromatic moiety. This group of synthetic dyes is obtained easily by the reaction of diazo coupling with high yield. The importance of azo dyes is reflected in the fact that they account for 60 % of the total number of the dye structures known to be manufactured and used in the coloration of textiles, leather, plastics and cosmetics. Aside from their traditional usage, azo dyes are known for their therapeutic properties and
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Li, Changping, and Baoping Xin. "Extraction and Mechanisms of Acid Dyes Into a Room Temperature Ionic Liquid." In 2008 2nd International Conference on Bioinformatics and Biomedical Engineering. IEEE, 2008. http://dx.doi.org/10.1109/icbbe.2008.383.

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Devi, R. Sukanya, Bhaarathi Dhurai, and P. Sivakumar. "Adsorption of acid dyes from wastewater using Azadirachta Indica neem (leaf) biochar." In THE 8TH ANNUAL INTERNATIONAL SEMINAR ON TRENDS IN SCIENCE AND SCIENCE EDUCATION (AISTSSE) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0108146.

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Said, A. A., M. M. M. Abd El-Wahab, S. A. Soliman, and A. A. M. Aly. "Potential application of propionic acid modified sugarcane bagasse for removal of basic and acid dyes from industrial wastewater." In 2010 International Conference on Environmental Engineering and Applications (ICEEA). IEEE, 2010. http://dx.doi.org/10.1109/iceea.2010.5596112.

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Sutlović, Ana, Valentina Ferenčak, Jelena Đukanović, and Sofija Đukanović. "Revitalisation of natural dyes: Red shades of textiles dyed with Rubia tinctorum under different process parameters." In 7th International Scientific Conference Contemporary Trends and Innovations in Textile Industry – CT&ITI 2024. Union of Engineers and Technicians of Serbia, Belgrade, 2024. http://dx.doi.org/10.5937/ct_iti24002s.

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The demands of modern life and industry tend toward environmentally sound and sustainable processes in all areas of human activity, including the textile industry. In response to this demand, natural dyes, which had fallen into oblivion at the end of the 19th century, gained popularity as an acceptable alternative to synthetic dyes. The natural dye obtained from the plant Rubia tinctorum belongs to the group of acid-mordant dyes. The chemical structure of the main pigment, alizarin, and the method of binding it to fiber are described in the paper. Basic botanical and agronomic data are present
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Reports on the topic "Acid dyes"

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Bolding, Madeline, Natalie Pace, and Demosthenes Morales. A new nucleic acid labeling strategy using biarsenical dyes. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1889943.

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James, Keith. The Effects of Phosphonic Acids in Dye-Sensitized Solar Cells. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2946.

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Lance, Richard, and Xin Guan. Variation in inhibitor effects on qPCR assays and implications for eDNA surveys. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41740.

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Aquatic environmental DNA (eDNA) surveys are sometimes impacted by polymerase chain reaction (PCR) inhibitors. We tested varying concentrations of different inhibitors (humic, phytic, and tannic acids; crude leaf extracts) for impacts on quantitative PCR (qPCR) assays designed for eDNA surveys of bighead and silver carp (Hypophthalmichthys nobilis and Hypophthalmichthys molitrix). We also tested for inhibition by high concentrations of exogenous DNA, hypothesizing that DNA from increasingly closely related species would be increasingly inhibitory. All tested inhibitors impacted qPCR, though on
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