Letteratura scientifica selezionata sul tema "Anthraquinone"
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Articoli di riviste sul tema "Anthraquinone"
Drummond, Christopher A., Maria Teresa Molina, Sandra Taliansky, Carl R. Breidenbach e Carmen F. Fioravanti. "Effects of Quinizarin and Five Synthesized Derivatives on Fifth Larval Instar Midgut Ecdysone 20-Monooxygenase Activity of the Tobacco HornwormManduca sexta". International Journal of Zoology 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/261512.
Testo completoMalak, Lourin G., Daoud W. Bishay, Afaf M. Abdel-Baky, Ahmed M. Moharram, Stephen J. Cutler e Samir A. Ross. "New Anthraquinone Derivatives from Geosmithia lavendula". Natural Product Communications 8, n. 2 (febbraio 2013): 1934578X1300800. http://dx.doi.org/10.1177/1934578x1300800215.
Testo completoGao, Huiyu, Jianbo Yang, Xueting Wang, Yunfei Song, Xianlong Cheng, Feng Wei, Ying Wang, Donglin Gu, Hua Sun e Shuangcheng Ma. "Exploratory Quality Control Study for Polygonum multiflorum Thunb. Using Dinuclear Anthraquinones with Potential Hepatotoxicity". Molecules 27, n. 19 (10 ottobre 2022): 6760. http://dx.doi.org/10.3390/molecules27196760.
Testo completoBranco, Alexsandro, Angelo C. Pinto, Jan Schripsema e Raimundo Braz-Filho. "Anthraquinones from the bark of Senna macranthera". Anais da Academia Brasileira de Ciências 83, n. 4 (dicembre 2011): 1159–64. http://dx.doi.org/10.1590/s0001-37652011000400003.
Testo completoZhang, Rongfei, Yuanyuan Miao, Lingyun Chen, Shanyong Yi e Ninghua Tan. "De Novo Transcriptome Analysis Reveals Putative Genes Involved in Anthraquinone Biosynthesis in Rubia yunnanensis". Genes 13, n. 3 (16 marzo 2022): 521. http://dx.doi.org/10.3390/genes13030521.
Testo completoUllah, Hossain, Junhyeong Kim, Naveed Rehman, Hye-Jin Kim, Mi-Jeong Ahn e Hye Chung. "A Simple and Sensitive Liquid Chromatography with Tandem Mass Spectrometric Method for the Simultaneous Determination of Anthraquinone Glycosides and Their Aglycones in Rat Plasma: Application to a Pharmacokinetic Study of Rumex acetosa Extract". Pharmaceutics 10, n. 3 (20 luglio 2018): 100. http://dx.doi.org/10.3390/pharmaceutics10030100.
Testo completoYang, Yong, Qiao-Xia Wu e Min Xue. "Bifurcated hydrogen bonding mediated planar 9,10-anthraquinone dyes: synthesis, structure and properties". RSC Advances 5, n. 37 (2015): 28932–37. http://dx.doi.org/10.1039/c5ra01682g.
Testo completoManojlovic, N. T., S. Solujic, S. Sukdolak e Lj Krstic. "Isolation and antimicrobial activity of anthraquinones from some species of the lichen genus Xanthoria". Journal of the Serbian Chemical Society 65, n. 8 (2000): 555–60. http://dx.doi.org/10.2298/jsc0008555m.
Testo completoAmmar Rushdan, Nur Afiqah Nadhiah, Nurunajah Ab Ghani e Nurulfazlina Edayah Rasol. "Review on Anthraquinones Isolated from Rubiaceae Family". Journal of Science and Mathematics Letters 11, Special (9 novembre 2023): 163–74. http://dx.doi.org/10.37134/jsml.vol11.sp.18.2023.
Testo completoHafez Ghoran, Salar, Fatemeh Taktaz, Seyed Abdulmajid Ayatollahi e Anake Kijjoa. "Anthraquinones and Their Analogues from Marine-Derived Fungi: Chemistry and Biological Activities". Marine Drugs 20, n. 8 (25 luglio 2022): 474. http://dx.doi.org/10.3390/md20080474.
Testo completoTesi sul tema "Anthraquinone"
Burton, S. J. "Biomimetic anthraquinone dyes". Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383771.
Testo completoSamp, James Christian. "A comprehensive mechanism for anthraquinone mass transfer in alkaline pulping". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24767.
Testo completoCommittee Chair: Dr. Jeff Empie; Committee Member: Dr. Bill Koros; Committee Member: Dr. Jim Frederick; Committee Member: Dr. Tom McDonough; Committee Member: Dr. Xin-Sheng Chai
Wang, Biao. "A catalyzed chemimechanical-anthraquinone pulping". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0024/NQ50278.pdf.
Testo completoWang, Biao 1963. "A catalyzed chemimechanical-anthraquinone pulping /". Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35431.
Testo completoIt was observed that AQ was not an effective redox catalyst when added to the sulphite liquor at pH 4, but it was very effective at pH 7 and higher. When chemical treatment of chemimechanical pulping was done with the presence of AQ, the sulphur content of pulp was reduced due to preferential reaction of AQ with wood components. AQ, as a pulping agent, is much effective in increasing the delignification rate and at the same time protecting the degradation of carbohydrates.
Pulps produced from wood wafers with cooking liquor at pH 7 containing 0.1% of AQ on oven dry wood, exhibited the following improved properties when compared with those prepared without addition of AQ: increased pulping rate, higher pulp yield and carbohydrates yield at the same level of residual lignin in pulp, and in addition, the strength properties such as breaking length and burst strength improved by 15% even with a minimum AQ charge (0.05% and 0.01%).
With regular wood chips, the penetration of sulphite seems to be superior to that of AQ. It was observed that AQ was not uniformly distributed in the impregnated wood chips even when the compression ratio was increased from 3.5:1 to 5:1. The penetration of AQ into wood chips remains to be a major factor affecting the pulping rate and pulp properties (strength and brightness) in chemimechanical-AQ pulping.
The rate of delignification in the initial phase of both sulphite and sulphite-AQ cooking at pH 7 shows the second order reaction in the remaining lignin. The order with respect to sulphite concentration for sulphite and sulphite-AQ cooking were estimated to be 0.24 and 0.31, respectively. The activation energies of delignification of the initial phase in sulphite and sulphite-AQ pulping were 90.2 and 97.5 kJ/mole which was valid up to 30% lignin removal within the temperature range of 160°C and 175°C. AQ as a pulping additive introduced to the sulphite liquor increased the rate of delignification 1.5 times in the initial phase of delignification during the sulphite cooking process.
At initial pH of sulphite liquor ranging from 7 to 10, the rate of delignification in the initial phase during sulphite and sulphite-AQ cooking appears to be a second order reaction in the remaining lignin. The reaction orders with respect to sulphite concentration increases when the initial pH is below 8 and decreases when the initial pH is above 8 for both sulphite and sulphite-AQ cooking. The raw of delignificafion is dependent on the initial pH of cooking liquor and the addition of AQ.
Burazin, Mark Alan. "A dynamic model of kraft-anthraquinone pulping". Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/5743.
Testo completoMorin, Francois. "Mass transfer limitations in sulfite pulping with anthraquinone". Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28495.
Testo completoIn a heterogeneous reaction system, such as wood pulping, two main factors control the overall reaction rate: liquor penetration and chemical diffusion. As a first step, some wood characteristics affecting liquor impregnation were evaluated: 1) fiber hydraulic radius, 2) air, steam and water content, 3) wood elasticity and compressibility. Secondly, impregnation and pulping experiments were performed while varying the pre-steaming, compression and soaking time. Finally, experimental profiles were compared to computer simulated results. The two most commonly used species by the pulp industry were chosen for this study: 1) black spruce sapwood and heartwood as well as 2) trembloid poplar sapwood.
Impregnation of sulfite-AHQ liquor in wood blocks was simulated by a three-dimensional "Control Volume Finite Difference Method (CVFDM)". To de-couple the pressure and velocity fields, typical to convection-diffusion problems, a mass balance around individual control volume was performed using Poiseuille's capillary flow equation. The pulping kinetic differential equations were included into the CVFDM model to simulate a three-dimensional delignification pattern in the wood.
In general, the progression of the anthraquinone impregnation was slow and non-uniform in comparison to sulfite which penetrated rapidly and uniformly during pulping. Furthermore, delignification uniformity was related to the initial chemical profiles observed after impregnation. This confirms the importance of chemical pre-treatment for high yield pulping in order to minimize uneven delignification for chips thicker than 3mm. Results showed that, in most cases, computer simulated profiles were similar to experimental anthraquinone and sulfite impregnation patterns.
Gibson, Victoria. "Design, synthesis and evaluation of anthraquinone-oligodeoxynucleotide conjugates". Thesis, University of Sunderland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242343.
Testo completoAlaparthi, Madhubabu. "Molecular Recognition Involving Anthraquinone Derivatives and Molecular Clips". Thesis, University of South Dakota, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10285748.
Testo completoIn the past, we have demonstrated that 1,8-anthraquinone-18-crown-5 (1) and its heterocyclic derivatives act as luminescent hosts for a variety of cations of environmental and clinical concern. We report here a series of heteroatom-substituted macrocycles containing an anthraquinone moiety as a fluorescent signaling unit and a cyclic polyheteroether chain as the receptor. Sulfur, selenium, and tellurium derivatives of 1,8-anthraquinone-18-crown-5 (1) were synthesized by reacting sodium sulfide (Na2S), sodium selenide (Na2Se) and sodium telluride (Na2Te) with 1,8-bis(2-bromoethylethyleneoxy)anthracene - 9,10-dione in a 1:1 ratio (2,3, and 6). These sensors bind metal ions in a 1:1 ratio (7 and 8), and the optical properties of the new complexes were examined and the sulfur and selenium analogues show that selectivity for Pb(II) is markedly improved as compared to the oxygen analogue 1 which was competitive for Ca(II) ion.
Selective reduction of 1 yields secondary alcohols where either one or both of the anthraquinone carbonyl groups has been reduced ( 15 and 9). A new mechanism for the fluorescence detection of metal cations in solution is introduced involving a unique keto-enol tautomerization. Reduction of 1 yields the doubly reduced secondary alcohol, 9. 9 acts as a chemodosimeter for Al(III) ion producing a strong blue emission due to the formation of the anthracene fluorophore, 10, via dehydration of the internal secondary alcohol in DMSO/aqueous solution. The enol form is not the most thermodynamically stable form under these conditions however, and slowly converts to the keto form 11.
Currently we are focusing on cucurbituril derivatives, also described as molecular clips due to their folded geometry used as molecular recognition hosts. We first investigated the synthesis and characterization of aromatic methoxy/catechol terminated cucurbituril units that act as hosts for small solvent molecules, such as CH2Cl2, CH3CN, DMF, and MeOH, through dual pi…H-C T-shaped interactions. We have calculated the single-point interaction energies of these non-covalent interactions and compared them to the dihedral angle formed from the molecular clip. We have also synthesized a molecular clip that contains terminal chelating phenanthroline ligands. This tetradentate ligand shows 2:3 metal:ligand binding with Fe(II) and 1:2 metal:ligand binding with Co(II) and Ni(II) cations.
Lee, Young H. "Reductive biotransformation and decolorization of reactive anthraquinone dyes". Diss., Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04062004-164708/unrestricted/lee%5Fyoung%5Fh%5F200312%5Fphd.pdf.
Testo completoVita. Includes bibliographical references (leaves 332-345).
Biasca, Karyn L. "A study of the kinetics of delignification during the early stage of alkaline sulfite anthraquinone pulping". Diss., Available online, Georgia Institute of Technology, 1989:, 1989. http://etd.gatech.edu/theses/available/ipstetd-10/biasca%5Fkl.pdf.
Testo completoLibri sul tema "Anthraquinone"
Ijaz, Taeeba. Anthraquinone-peptide conjugates as inhibitors of DNA transcription factor binding. Leicester: De Montfort University, 1998.
Cerca il testo completoC, Goyal Gopal, e Technical Association of the Pulp and Paper Industry., a cura di. Anthraquinone pulping: A Tappi press anthology of published papers, 1977-1996. Atlanta, GA: Tappi press, 1997.
Cerca il testo completoRhodes, Christopher Mark. Part 1: the synthesis and study of anthracine and anthraquinone-containing polymers by means of a precursor route: Part 2: a kinetic study of model reactions of an epoxy resin cure. Manchester: University of Manchester, 1996.
Cerca il testo completoGiles, Yvonne. Synthesis, DNA interactions and activation of novel cytotoxic anthraquinones. Leicester: De Montfort University, 1999.
Cerca il testo completoAnthraquinones in plants: Source, safety and applications in gastrointestinal health. 2a ed. Nottingham: Nottingham University Press, 2010.
Cerca il testo completoAnthraquinone Pulping. Tappi Pr, 1997.
Cerca il testo completoHoffman, William Samuel. Reactions of Anthraquinone Sulphonic Acids with Mercaptans. Creative Media Partners, LLC, 2018.
Cerca il testo completoDutta, Tapas. Kraft pulping of Douglas-fir with soluble anthraquinone. 1988.
Cerca il testo completoDutta, Tapas. Kraft pulping of Douglas-fir with soluble anthraquinone. 1988.
Cerca il testo completoDibbs, Scott E. Modeling & simulation of the alkaline sulfite anthraquinone pulping system. 1985.
Cerca il testo completoCapitoli di libri sul tema "Anthraquinone"
Gordon, Paul Francis, e Peter Gregory. "Anthraquinone Dyes". In Organic Chemistry in Colour, 163–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-82959-8_4.
Testo completoGooch, Jan W. "Anthraquinone Dyes". In Encyclopedic Dictionary of Polymers, 42. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_683.
Testo completoGooch, Jan W. "Dihydroxy Anthraquinone Lake". In Encyclopedic Dictionary of Polymers, 221. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3670.
Testo completoBillen, Günter, Ulrich Karl, Thomas Scholl, Klaus Dieter Stroech e W. Steglich. "Stereochemical Studies on Pre-Anthraquinones and Dimeric Anthraquinone Pigments". In Natural Products Chemistry III, 305–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-74017-6_17.
Testo completoSuzuki, H., e T. Matsumoto. "Anthraquinone: Production by Plant Cell Culture". In Biotechnology in Agriculture and Forestry, 237–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73026-9_12.
Testo completoShahid-ul-Islam e F. Mohammad. "Anthraquinone-Based Natural Colourants from Insects". In Textile Science and Clothing Technology, 81–97. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2185-5_3.
Testo completoMotronyuk, T., I. Barsukov, V. Barsukov, V. Drozdik e O. Radchenko. "Metal-Free Graphite/HBF4/Anthraquinone Rechargeable Batteries". In New Promising Electrochemical Systems for Rechargeable Batteries, 451–65. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1643-2_34.
Testo completoSparapano, L., P. Lerario e G. Anelli. "Production of Anthraquinone Derivatives by Phoma Tracheiphila". In Phytotoxins and Plant Pathogenesis, 395–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73178-5_38.
Testo completoGe, Ping, e Richard A. Russell. "Synthesis of Anthraquinone Analogues of Linked Anthracycline". In ACS Symposium Series, 132–41. Washington, DC: American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1995-0574.ch008.
Testo completoHadibarata, Tony, Khaloud Mohammed Alarjani e Amal M. Al-Mohaimeed. "Biotransformation of Anthraquinone Dye by Microbial Enzymes". In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 87–106. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0526-1_4.
Testo completoAtti di convegni sul tema "Anthraquinone"
Burger, E. D., e J. M. Odom. "Mechanisms of Anthraquinone Inhibition of Sulfate-Reducing Bacteria". In SPE International Symposium on Oilfield Chemistry. Society of Petroleum Engineers, 1999. http://dx.doi.org/10.2118/50764-ms.
Testo completoYagyu, Eiji, Tetsuya Nishimura e Motomu Yoshimura. "Persistent Hole Burning and Holography in Anthraquinone Derivatives". In Spectral Hole-Burning and Related Spectroscopies: Science and Applications. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/shbs.1994.wd57.
Testo completoAlwi, Ratna Surya, Kazuhiro Tamura, Tatsuro Tanaka e Keisuke Shimizu. "Solubility correlation of anthraquinone derivatives in supercritical carbon dioxide". In INTERNATIONAL SEMINAR ON FUNDAMENTAL AND APPLICATION OF CHEMICAL ENGINEERING 2016 (ISFAChE 2016): Proceedings of the 3rd International Seminar on Fundamental and Application of Chemical Engineering 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4982328.
Testo completoMahajan, Aman, e R. K. Bedi. "Study on hot-wall-epitaxy-grown 9,10-anthraquinone films". In Smart Materials, Structures, and Systems, a cura di S. Mohan, B. Dattaguru e S. Gopalakrishnan. SPIE, 2003. http://dx.doi.org/10.1117/12.514848.
Testo completoChen, Kuizhi, Junri Wen, Jiangsheng Liu, Zhenzhen Chen, Sujuan Pan, Zheng Huang e Yiru Peng. "Photoinduced electron transfer between the dendritic zinc phthalocyanines and anthraquinone". In SPIE BiOS, a cura di David H. Kessel e Tayyaba Hasan. SPIE, 2015. http://dx.doi.org/10.1117/12.2078428.
Testo completoAbidin, Che Zulzikrami Azner, Muhammad Ridwan Fahmi, Md Ali Umi Fazara e Siti Nurfatin Nadhirah. "Degradation characteristic of monoazo, diazo and anthraquinone dye by UV/H2O2 process". In 3RD INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES (ICFAS 2014): Innovative Research in Applied Sciences for a Sustainable Future. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4898478.
Testo completoSerak, Svetlana V., Janusz Parka, Alexander V. Agashkov e Tatiana A. Davidovich. "Photo-induced electrohydrodynamical instabilities in anthraquinone-dye-doped nematics above Freedericksz threshold". In XIII International Conference on Liquid Crystals: Chemistry, Physics, and Applications, a cura di Stanislaw J. Klosowicz, Jolanta Rutkowska, Jerzy Zielinski e Jozef Zmija. SPIE, 2000. http://dx.doi.org/10.1117/12.385708.
Testo completoAnderson, Benjamin, Shiva K. Ramini e Mark G. Kuzyk. "Imaging studies of photodamage and recovery of anthraquinone derivatives doped into PMMA". In XLIII Annual Symposium on Optical Materials for High Power Lasers, a cura di Gregory J. Exarhos, Vitaly E. Gruzdev, Joseph A. Menapace, Detlev Ristau e M. J. Soileau. SPIE, 2011. http://dx.doi.org/10.1117/12.896369.
Testo completoBharathi, Subramanian, Zhibin Wu e Ovadia Lev. "Redox-modified silicate films: anthraquinone- and Prussian-blue-modified sol-gel electrodes". In Optical Science, Engineering and Instrumentation '97, a cura di Bruce S. Dunn, John D. Mackenzie, Edward J. A. Pope, Helmut K. Schmidt e Masayuki Yamane. SPIE, 1997. http://dx.doi.org/10.1117/12.284117.
Testo completoWu, Rui, Yuping Chen, Dandan Pan, Xianfeng Chen, Qing Hua Meng e Yuan Zeng. "Characterization of nonlinear optical properties of anthraquinone dye doped polymethyl-methacrylate (PMMA) waveguide". In Photonics Asia 2004, a cura di Qihuang Gong, Yiping Cui e Roger A. Lessard. SPIE, 2005. http://dx.doi.org/10.1117/12.574532.
Testo completoRapporti di organizzazioni sul tema "Anthraquinone"
Su, Ning, Jerald S. Bradshaw, Xian X. Zhang, Paul B. Savage e Krzystof E. Krakowiak. Syntheses of Diaza-18-Crown-6 Ligands Containing Two Units Each of 4-Hydroxyazobenzene, Benzimidazole, Uracil, Anthraquinone, or Ferrocene Groups. Fort Belvoir, VA: Defense Technical Information Center, aprile 1999. http://dx.doi.org/10.21236/ada361715.
Testo completoIntegration of the Mini-Sulfide Sulfite Anthraquinone (MSS-AQ) Pulping Process and Black Liquor Gasification in a Pulp Mill. Office of Scientific and Technical Information (OSTI), gennaio 2010. http://dx.doi.org/10.2172/970980.
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