Letteratura scientifica selezionata sul tema "Crown ethers"
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Articoli di riviste sul tema "Crown ethers"
Mao, Hua, John B. Thorne, Jennifer S. Pharr e Robert E. Gawley. "Effect of crown ether ring size on binding and fluorescence response to saxitoxin in anthracylmethyl monoazacrown ether chemosensors". Canadian Journal of Chemistry 84, n. 10 (1 ottobre 2006): 1273–79. http://dx.doi.org/10.1139/v06-093.
Testo completoPranowo, Harno Dwi, e Chairil Anwar. "INTERACTION BETWEEN Li+ CATION WITH CROWN ETHERS OF Bz15C5, DBz16C5 AND DBz18C6: MOLECULAR MODELING BASE ON MNDO/d SEMIEMPIRICAL METHOD". Indonesian Journal of Chemistry 3, n. 1 (7 giugno 2010): 55–66. http://dx.doi.org/10.22146/ijc.21906.
Testo completoFronczek, Frank R., Richard D. Gandour, Thomas M. Fyles, Philippa J. Hocking, Susan J. McDermid e P. Daniel Wotton. "Polycarboxylate crown ethers from meso-tartaric acid". Canadian Journal of Chemistry 69, n. 1 (1 gennaio 1991): 12–19. http://dx.doi.org/10.1139/v91-003.
Testo completoLu, Zhongyuan, Benjamin A. Jackson e Evangelos Miliordos. "Ab Initio Calculations on the Ground and Excited Electronic States of Thorium–Ammonia, Thorium–Aza-Crown, and Thorium–Crown Ether Complexes". Molecules 28, n. 12 (12 giugno 2023): 4712. http://dx.doi.org/10.3390/molecules28124712.
Testo completoZimnicka, Magdalena M. "Crown ethers as shift reagents in peptide epimer differentiation –conclusions from examination of ac-(H)FRW-NH2 petide sequences". International Journal for Ion Mobility Spectrometry 23, n. 2 (ottobre 2020): 177–88. http://dx.doi.org/10.1007/s12127-020-00271-2.
Testo completoSzemenyei, Balázs, Balázs Novotny, Sarolta Zsolnai, Zsombor Miskolczy, László Biczók, Attila Takács, László Kollár, László Drahos, Ildikó Móczár e Péter Huszthy. "Push or Pull for a Better Selectivity? A Study on the Electronic Effects of Substituents of the Pyridine Ring on the Enantiomeric Recognition of Chiral Pyridino-18-Crown-6 Ethers". Symmetry 12, n. 11 (30 ottobre 2020): 1795. http://dx.doi.org/10.3390/sym12111795.
Testo completoAnantanarayan, Ashok, e Thomas M. Fyles. "Polycarboxylate diaza crown ethers derived from R,R-(+)-tartaric acid: synthesis and complexation of metal ions". Canadian Journal of Chemistry 68, n. 8 (1 agosto 1990): 1338–51. http://dx.doi.org/10.1139/v90-206.
Testo completoEsseffar, M'hamed, Mohamed El Mouhtadi, José-Luis M. Abboud, José Elguero e Daniel Liotard. "Étude théorique (AM1) de l'affinité protonique des polyéthers cycliques (éthers couronnes) et non cycliques (glymes)". Canadian Journal of Chemistry 69, n. 12 (1 dicembre 1991): 1970–75. http://dx.doi.org/10.1139/v91-283.
Testo completoOh, Young-Ho, Ju Gyeong Jeong, Dong Wook Kim e Sungyul Lee. "Nucleophilic Reactions Using Alkali Metal Fluorides Activated by Crown Ethers and Derivatives". Catalysts 13, n. 3 (27 febbraio 2023): 479. http://dx.doi.org/10.3390/catal13030479.
Testo completoInoue, Yoshihisa, Hiroya Harino, Toshiyo Nakazato, Noriaki Koseki e Tadao Hakushi. "Unsaturated crown ethers. 3. Syntheses of stilbeno crown ethers". Journal of Organic Chemistry 50, n. 25 (dicembre 1985): 5151–56. http://dx.doi.org/10.1021/jo00225a035.
Testo completoTesi sul tema "Crown ethers"
Huang, Zilin. "Synthesis and Complexation Studies of Novel Functionalized Crown Ethers and Azacrown Ethers". Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5593/.
Testo completoOwens, K. A. "Polycyclic crown ethers incorporating cyclophane units". Thesis, University of Liverpool, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370864.
Testo completoWilson, Mark James. "Activity relationships for aromatic crown ethers". Thesis, University of Strathclyde, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249872.
Testo completoHuang, Zilin. "Synthesis and Properties of Novel Cage-Annulated Crown Ethers". Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc5523/.
Testo completoDenike, John Kane Carleton University Dissertation Chemistry. "The synthesis and complexation of bis-crown ethers and polymers bearing pendant crown ethers and the study of molecular motion of crown ethers in solids using solid state 2H NMR". Ottawa, 1992.
Cerca il testo completoJi, Mingzhe. "Explorations with optically active, cage-annulated crown ethers". Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc4207/.
Testo completoMerithew, Andrew William. "Differential Self-Assembly of Novel Redox Crown Ethers". Thesis, University of California, Santa Barbara, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3645672.
Testo completoRetinal prosthesis relies on the stimulation of living nerve tissue behind the rods and cones of the eye. The current state of the art relies on electrodes controlled by cameras which directly stimulate the nerve tissue to elicit a response to an image. These types of retinal implants have allowed for short-term crude vision in patients but have had limited long term success due to external battery packs and electroplating of the implanted electrodes.
Ionic stimulation is one of the principle mechanisms that sensory neurons utilize in the generation of an action potential. In a complex transduction pathway, ionic gradients are constantly altered inside the neuron by voltage sensors or mechanically controlled gates embedded in the neuronal cell membrane; responsible for the open and close state of these ion channels.
It has been demonstrated that local concentration increases of K + by direct injection proximal to the nerve can elicit nerve firing at a concentration of 15-20 mM (3-4X normal concentration) increase in K + concentration. As part of a larger concept of integrating biotechnology with nanofabrication, the materials for the development of potassium selective sequestration/storage and delivery were developed in the form of a redox-gated K+ selective crown ether.
The structure of the anthraquinone-based crown was deduced by computational simulation and stoichiometry of the complex confirmed by mass spec. along with 2D diffusion NMR techniques. In this instance, the stoichiometry could be controlled by the addition of different salts to give a 1:1 complex with large, aromatic anions and a 2:1 complex with smaller anions such as triflate. The synthesis of the molecule was optimized by computational modeling and simulations of transport through an artificial membrane. The selectivity of the architecture developed was specific for K+ over Na+, the other major ionic species present in the blood. The mechanism influencing the self-assembly of this class of compounds has much to do with the breakage of intramolecular π-stacking interactions and the formation of stronger intermolecular π-stacking interactions.
Finally, the transport of K+ through nanoporous membranes and single nanopores with novel PEG-type polymeric dispersions is demonstrated. This thesis concludes with future work toward developing more advanced transporters and proposes novel uses for anthraquinone-appended polymers as proton exchange membranes and DNA-base pair interchelators.
D'Souza, Lawrence Joseph. "Bile Acid Based Molecular Tweezers And Crown Ethers". Thesis, Indian Institute of Science, 1995. https://etd.iisc.ac.in/handle/2005/114.
Testo completoD'Souza, Lawrence Joseph. "Bile Acid Based Molecular Tweezers And Crown Ethers". Thesis, Indian Institute of Science, 1995. http://hdl.handle.net/2005/114.
Testo completoLandry, Denis Joseph Carleton University Dissertation Chemistry. "Approaches to the synthesis and sterochemical analysis of aza crown ethers". Ottawa, 1989.
Cerca il testo completoLibri sul tema "Crown ethers"
E, Weber, Patai Saul e Rappoport Zvi, a cura di. Crown ethers and analogs. Chichester: Wiley, 1989.
Cerca il testo completoMichio, Hiraoka, a cura di. Crown ethers and analogous compounds. Amsterdam: Elsevier, 1992.
Cerca il testo completoMichio, Hiraoka, a cura di. Crown ethers and analogous components. Amsterdam: Elsevier, 1992.
Cerca il testo completoWeber, Edwin, John L. Toner, Israel Goldberg, Fritz Vgtle, Dale A. Laidler, J. Fraser Stoddart, Richard A. Bartsch e Charles L. Liotta, a cura di. Crown Ethers and Analogs (1989). Chichester, UK: John Wiley & Sons, Inc., 1989. http://dx.doi.org/10.1002/9780470772232.
Testo completoRobinson, Peter Mark. Crown ethers incorporating stable carbocations. Manchester: University of Manchester, 1994.
Cerca il testo completoMooney, Nichola Jane. Crown ethers incorporating 1,8-dioxyxanthyl residues. Manchester: University of Manchester, 1996.
Cerca il testo completoNesterov, S. V. Dicyclohexanocrown ethers: From synthesis to radiochemical applications. New York: Nova Science Publishers, 2011.
Cerca il testo completoBradshaw, J. S. Aza-crown macrocycles. New York: Wiley, 1993.
Cerca il testo completo1926-, Izatt Reed McNeil, e Bradshaw J. S, a cura di. The Pedersen memorial issue. Dordrecht: Kluwer Academic Publishers, 1992.
Cerca il testo completoMooney, Nichola Jane. Synthesis and properties of crown ethers incorporating Xanthene residues. Manchester: University of Manchester, 1993.
Cerca il testo completoCapitoli di libri sul tema "Crown ethers"
Mohapatra, P. K. "Crown Ethers". In Encyclopedia of Membranes, 488–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-44324-8_162.
Testo completoMohapatra, P. K. "Crown Ethers". In Encyclopedia of Membranes, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_162-4.
Testo completoFedorova, Olga, Yuri Fedorov e Vladimir Lokshin. "Photochromic Crown Ethers". In Photon-Working Switches, 345–61. Tokyo: Springer Japan, 2017. http://dx.doi.org/10.1007/978-4-431-56544-4_17.
Testo completoStoddart, J. Fraser. "Chiral Crown Ethers". In Topics in Stereochemistry, 207–88. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470147269.ch3.
Testo completoKaller, Martin, e Sabine Laschat. "Liquid Crystalline Crown Ethers". In Topics in Current Chemistry, 109–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/128_2011_211.
Testo completoTakata, Toshikazu, e Hiromitsu Sogawa. "Crown Ethers-Based Supramolecular Polymers". In Encyclopedia of Polymeric Nanomaterials, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36199-9_96-1.
Testo completoBotti, P., H. L. Ball, P. Lucietto, M. Pinori e P. Mascagni. "Crown ethers and peptide synthesis". In Peptides 1994, 147–48. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-1468-4_56.
Testo completoTakata, Toshikazu, e Hiromitsu Sogawa. "Crown Ethers-Based Supramolecular Polymers". In Encyclopedia of Polymeric Nanomaterials, 505–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-29648-2_96.
Testo completoChen, Ling, e Yu Liu. "Water-Soluble Aromatic Crown Ethers". In Handbook of Macrocyclic Supramolecular Assembly, 3–26. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2686-2_2.
Testo completoFu, Hong-Guang, Yong Chen e Yu Liu. "Polypseudorotaxanes Constructed by Crown Ethers". In Handbook of Macrocyclic Supramolecular Assembly, 27–47. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2686-2_3.
Testo completoAtti di convegni sul tema "Crown ethers"
El-Azhary, A. A., N. Al-Jallal, A. Al-Kahtani, N. Al-Badri, K. Al-Farhan e M. Al-Qunaibit. "Structure of crown ethers". In THEORY AND APPLICATIONS IN COMPUTATIONAL CHEMISTRY: THE FIRST DECADE OF THE SECOND MILLENNIUM: International Congress TACC-2012. AIP, 2012. http://dx.doi.org/10.1063/1.4730663.
Testo completoVazirova, Leyla, e Govhar Abbasova. "Sorbents Based on Iron Oxide Nanoparticles for Release of Tetracyclines for Water Treatment". In 2nd International Scientific-Practical Conference "Machine Building and Energy: New Concepts and Technologies". Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-sh9pfn.
Testo completoBirck, Jean Louis, Julien Bouchez, Akanksha Praharaj, Mathieu Dellinger e Samia Zrig. "Li separation from natural samples using crown-ethers." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.18705.
Testo completoLopez, Juan, Susana Blanco, Melanie Schnell e Cristobal Perez. "CHARACTERIZATION OF MICROSOLVATED CROWN ETHERS FROM BROADBAND ROTATIONAL SPECTROSCOPY". In 71st International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.ti05.
Testo completoChang, S. H., T. J. Ka, J. Y. Kim, A. S. Yeon, H. H. Nam e G. S. Che. "Syntheses of new Bis-crown ethers based on siloxane". In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835746.
Testo completoTrisca-Rusu, C., A. C. Nechifor, S. I. Voicu e G. Nechifor. "Covalently immobilized crown ethers onto polysulfone membranes as materials for sensors". In 2010 International Semiconductor Conference (CAS 2010). IEEE, 2010. http://dx.doi.org/10.1109/smicnd.2010.5649081.
Testo completoNakamura, T., K. Honda, A. E. Underhill, A. T. Coomber e R. H. Friend. "Ni(dmit)/sub 2/ salts of group-i-cation-including crown ethers". In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835469.
Testo completoKim, Sun-Ju, e Ji-Youn Seo. "Interfacial engineering through lead binding using crown ethers in perovskite solar cells". In International Conference on Hybrid and Organic Photovoltaics. València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2024. http://dx.doi.org/10.29363/nanoge.hopv.2024.195.
Testo completoGuseva, E. V., Z. Z. Idiiatullova e L. F. Davletshina. "The study of ligand properties of crown ethers (18-crown-6 and dibenzo-18-crown-6) when interacting with RhCl3 • nH2O in aprotic and proton solvents". In ТЕНДЕНЦИИ РАЗВИТИЯ НАУКИ И ОБРАЗОВАНИЯ. НИЦ «Л-Журнал», 2019. http://dx.doi.org/10.18411/lj-03-2019-130.
Testo completoPaviet-Hartmann, Patricia, Ana Nunez Gomez-Aleixandre, Joshua Pak, Amparo Glez Espartero, Frederic Poineau, Amber Wright, Edward Mausolf e Kenneth R. Czerwinski. "Extraction of Technetium as [Tc(II)(NO)(AHA)2H2O]+ Species in the UREX Process". In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75509.
Testo completoRapporti di organizzazioni sul tema "Crown ethers"
Bartsch, R. Metal ion complexation by ionizable crown ethers. Office of Scientific and Technical Information (OSTI), settembre 1989. http://dx.doi.org/10.2172/5483625.
Testo completoBartsch, R. Metal ion complexation by ionizable crown ethers. Office of Scientific and Technical Information (OSTI), giugno 1990. http://dx.doi.org/10.2172/6737356.
Testo completoChien M. Wai, Anne Rustenholtz, Shaofen Wang, Su-Chen Lee, Jamie Herman e Richard A. Porter. Solvent Effects on Cesium Complexation with Crown Ethers from Liquid to Supercritical Fluids. Office of Scientific and Technical Information (OSTI), marzo 2004. http://dx.doi.org/10.2172/822406.
Testo completoChiarizia, R., M. L. Dietz, E. P. Horwitz e W. C. Burnett. Radium separation through complexation by aqueous crown ethers and ion exchange or solvent extraction. Office of Scientific and Technical Information (OSTI), novembre 1997. http://dx.doi.org/10.2172/554809.
Testo completoEyring, Edward M., e Sergio Petrucci. Rates and Mechanisms of Complexation Reactions of Cations with Crown Ethers and Related Macrocycles. Fort Belvoir, VA: Defense Technical Information Center, gennaio 1989. http://dx.doi.org/10.21236/ada203436.
Testo completoWai, Chien M., e Clem Yonker. Solution Effects on Cesium Complexation with Calixarene - Crown Ethers from Liquid to Supercritical Fluids. Office of Scientific and Technical Information (OSTI), giugno 1999. http://dx.doi.org/10.2172/833192.
Testo completoBonnesen, P. V., B. A. Moyer, D. J. Presley, V. S. Armstrong, T. J. Haverlock, R. M. Counce e R. A. Sachleben. Alkaline-side extraction of technetium from tank waste using crown ethers and other extractants. Office of Scientific and Technical Information (OSTI), giugno 1996. http://dx.doi.org/10.2172/257317.
Testo completoBartsch, R. A. Metal ion complexation by ionizable crown ethers. Final report, January 1, 1988--June 30, 1994. Office of Scientific and Technical Information (OSTI), dicembre 1994. http://dx.doi.org/10.2172/392788.
Testo completoBartsch, R. A. Metal ion complexation by ionizable crown ethers. Progress report, January 1, 1991--December 31, 1993. Office of Scientific and Technical Information (OSTI), luglio 1993. http://dx.doi.org/10.2172/10134650.
Testo completoBonnesen, P. V., D. J. Presley, T. J. Haverlock e B. A. Moyer. Removal of technetium from alkaline nuclear-waste media by a solvent-extraction process using crown ethers. Office of Scientific and Technical Information (OSTI), luglio 1995. http://dx.doi.org/10.2172/86950.
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