Academic literature on the topic 'Pyrene'

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Journal articles on the topic "Pyrene"

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Babu, Srinivasarao Arulananda, and Arup Dalal. "Pd(II)-Catalyzed Directing-Group-Aided C–H Arylation and Alkylation of Pyrene Core: Synthesis of C1,C2- and C1,C10-Disubstituted Pyrene Motifs." Synthesis 53, no. 18 (2021): 3307–24. http://dx.doi.org/10.1055/a-1472-0881.

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AbstractWe report the application of the Pd(II)-catalyzed, directing-group-aided C–H arylation/alkylation tactics to functionalize the pyrene core, especially, the relatively inaccessible C2 and K-region C10 positions of the pyrene core and augmentation of the library of pyrene derivatives with C1,C2- and C1,C10-disubstituted pyrene motifs. The Pd(II)-catalyzed β-C–H arylation/alkylation of the C2-position of pyrene-1-carboxamide possessing an 8-aminoquinoline directing group yielded various C1,C2-disubstituted pyrenes. Similarly, the Pd(II)-catalyzed selective γ-C–H arylation/alkylation of th
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TAKEDA, FUMIOMI. "CHARACTERIZATION OF BLACKBERRY PYRENES." HortScience 28, no. 5 (1993): 488e—488. http://dx.doi.org/10.21273/hortsci.28.5.488e.

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Pyrene (the pit of a druplet) size is a factor contributing to blackberry fruit quality. Large pyrene size, based on weight, length, or volume, and “seediness” is undesirable in processed blackberry products. Several of the recently released eastern thornless and erect Arkansas blackberries can be alternative sources of quality fruits for processors. The purpose of this study was to compare pyrenes of blackberries from the Oregon (O), Arkansas (A), and eastern USDA (E) breeding programs. Pyrene size (length) ranged from 2.5 mm in `Darrow' to 4.0 mm in `Black Satin' and `Merton Tnornless'. Pyre
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Arulananda Babu, Srinivasarao, Arup Dalal, and Subhankar Bodak. "Recent Advances in C–H Functionalization of Pyrenes." Chemistry 5, no. 4 (2023): 2713–55. http://dx.doi.org/10.3390/chemistry5040175.

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In recent years, transition metal-catalyzed C–H activation and site-selective functionalization have been considered to be valuable synthetic tactics to functionalize organic compounds containing multiple C–H bonds. Pyrene is one of the privileged and notorious polycyclic aromatic hydrocarbons. Pyrene and its derivatives have found applications in various branches of chemical sciences, including organic chemistry, chemical biology, supramolecular sciences, and material sciences. Given the importance of pyrene derivatives, several classical methods, including the C–H functionalization method, h
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Ashley, David L., Elizabeth R. Barnhart, Donald G. Patterson, and Robert H. Hill. "Identification of Polychlorinated Pyrenes and Pyrene-Addition Products Using Proton Nuclear Magnetic Resonance Techniques." Applied Spectroscopy 41, no. 7 (1987): 1194–99. http://dx.doi.org/10.1366/0003702874447428.

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Nuclear magnetic resonance (NMR) techniques are used to determine the chlorination pattern on a number of chlorinated pyrenes and pyrene-addition products. Determining chemical shifts, couplings, and longitudinal relaxation rates makes the unequivocal assignment of these molecules possible. Chlorination under the conditions described here were found to follow the normal orientation rules for pyrene. Spectral parameters obtained from these molecules are consistent enough to allow further application to unknown compounds. This should simplify assigning NMR spectra to other chlorinated pyrene sta
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Orehovec, Iva, Marija Matković, Isabela Pehar, Dragomira Majhen, and Ivo Piantanida. "Bis-Pyrene Photo-Switch Open- and Closed-Form Differently Bind to ds-DNA, ds-RNA and Serum Albumin and Reveal Light-Induced Bioactivity." International Journal of Molecular Sciences 22, no. 9 (2021): 4916. http://dx.doi.org/10.3390/ijms22094916.

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Newly designed and synthesized diarylethene (DAE) derivatives with aliphatic amine sidearms and one with two pyrenes, revealed excellent photo-switching property of central DAE core in MeOH and water. The only exception was bis-pyrene analogue, its DAE core very readily photochemically closed, but reversible opening completely hampered by aromatic stacking interaction of pyrene(s) with cyclic DAE. In this process, pyrene fluorescence showed to be a reliable monitoring method, an open form characterized by strong emission at 480 nm (typical for pyrene-aggregate), while closed form emitted weakl
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Babu, B. Ravindra, Mads D. Sørensen, Patrick J. Hrdlicka, et al. "Novel nucleic acid architectures involving locked nucleic acid (LNA) and pyrene residues: Results from an Indo-Danish collaboration." Pure and Applied Chemistry 77, no. 1 (2005): 319–26. http://dx.doi.org/10.1351/pac200577010319.

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We report herein our results for locked nucleic acid (LNA)-type oligonucleotides containing pyrene residues. Pyrene has a large hydrophobic and planar surface area and is therefore a potential intercalating unit; furthermore, it is interesting as a fluorescent tag when covalently bound to DNA. Synthesis and hybridization of conformationally locked universal base surrogates are described together with efficient interstrand communication as shown by the formation of pyrene excimer bands for duplexes containing 2'-N-(pyren-1-yl)methyl-2'-amino-LNA monomers positioned in a zipper-like manner withi
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Jasiura, Adam, Mateusz Gorzel, Konrad Warchoł, Wiktoria Lipczyńska, Wiktoria Lipczyńska, and Wiktoria Lipczyńska. "Benzo(a)pyrene - an air pollutant harmful to health in European countries." Medical Science Pulse 17, no. 3 (2023): 1–7. http://dx.doi.org/10.5604/01.3001.0053.9255.

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Background: Benzo(a)pyrenes are organic compounds from the polycyclic aromatic hydrocarbons group known for their carcinogenic properties. Benzo(a)pyrenes are formed as a result of incomplete combustion of organic matter, such as biomass or fossil fuel.Aim of the study: To investigate whether respiratory diseases and malignant neoplasm-related deaths correlate to air concentrations of benzo(a)pyrene in European countries.Material and methods: Publicly available data were obtained regarding benzo(a)pyrene concentration from the EUROSTAT database, as well as territorial division in accordance wi
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Mimura, Yuki, Tomoki Nishikawa, Ryo Fuchino, et al. "Circularly polarised luminescence of pyrenyl di- and tri-peptides with mixed d- and l-amino acid residues." Organic & Biomolecular Chemistry 15, no. 21 (2017): 4548–53. http://dx.doi.org/10.1039/c7ob00503b.

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Silva, Beatriz E. Ruiz, Edward K. Koepf, Leslie D. Burtnick, and Nicholas J. Turro. "Monomer and excimer fluorescence of horse plasma gelsolin labelled with N-(1-pyrenyl)iodoacetamide." Biochemistry and Cell Biology 70, no. 7 (1992): 573–78. http://dx.doi.org/10.1139/o92-088.

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Horse plasma gelsolin was labelled with the sulfhydryl-specific fluorescent reagent N-(1-pyrenyl)iodoacetamide. The level of incorporation of probe was 1.6 ± 0.3 mol pyrene/mol gelsolin. The circular dichroism spectrum of pyrenyl-gelsolin and its ability to interact with muscle actin were not different from that found for unmodified gelsolin. The emission from pyrenyl-gelsolin was dominated by a broad emission band centred near 483 nm, characteristic of the presence of pyrene excimers. Analysis of excitation spectra for the monomer and excimer-type fluorescence suggested that ground-state inte
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de Robillard, Guillaume, Oumayma Makni, Hélène Cattey, Jacques Andrieu, and Charles H. Devillers. "Towards sustainable synthesis of pyren-1-yl azoliums via electrochemical oxidative C–N coupling." Green Chemistry 17, no. 9 (2015): 4669–79. http://dx.doi.org/10.1039/c5gc01142f.

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Dissertations / Theses on the topic "Pyrene"

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Melidonie, Jason, Junzhi Liu, Yubin Fu, Jan J. Weigand, Reinhard Berger, and Xinliang Feng. "Pyrene-Fused s-Indacene." ACS Publications, 2018. https://tud.qucosa.de/id/qucosa%3A36576.

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One antiaromatic polycyclic hydrocarbon (PH) with and without solubilizing tert-butyl substituents, namely s-indaceno[2,1-a:6,5-a′]dipyrene (IDPs), has been synthesized by a four-step protocol. The IDPs represent the longitudinal, peri-extension of the indeno[1,2-b]fluorene skeleton towards a planar 40 π-electron system. Their structures were unambiguously confirmed by X-ray crystallographic analysis. The optoelectronic properties were studied by UV/vis absorption spectroscopy and cyclic voltammetry. These studies revealed that peri-fusion renders the IDP derivatives with a narrow optical ener
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Mangnall, T. I. "Pyrene based Metal Organic Frameworks." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3000462/.

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Metal Organic Frameworks (MOFs) are a type of multifunctional porous material. Comprised of metal centres or metal clusters known as Secondary Building Units (SBUs) linked together into an extended 1, 2 or 3 dimensional structure by bridging organic ligands coordinated to the metal SBUs. MOFs offer the opportunity to customise the pore size and chemical functionality of the fra mework. The degree of customisation possible from the wide array of different metal clusters and organic ligands MOFs have been proposed for many applications such as gas storage, separation, catalysis, photocatalysis,
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Launen, Loren A. "Pyrene biodegradation by Penicillium janthinellum SFU403." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0022/NQ51887.pdf.

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TEIXEIRA, SILVIO CESAR GODINHO. "PYRENE ADSORPTION IN BRAZILIAN SOILS STUDY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12309@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>A maioria dos estudos envolvendo adsorção de hidrocarbonetos policíclicos aromáticos (HPA) é realizada em solos de regiões de clima frio. Como em países tropicais as características dos processos pedológicos e os solos resultantes são diferentes há necessidade desses estudos em solos brasileiros. Com esse objetivo, este trabalho estudou a adsorção de pireno em sete categorias representativas de solos brasileiros: Argissolo, Latossolo Amarelo, Latossolo Vermelho acriférrico, Latossolo Vermelho Amarelo distrófico, Neossolo Quartzarênic
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Karabaeva, Kanykey E. "Photochemistry of Masked Pyrene-4,5-Dione." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1371083757.

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Castle, Saffron Jane. "Sensing bilayer pressures with pyrene-labelled probes." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281742.

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Carter, Tom Scott. "Synthetic lectins with pyrene at the core." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702443.

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Carbohydrates are displayed on the outer layer of cells by glycoproteins and glycolipids, forming the glycocalyx. These carbohydrates hold a huge amount of information, acting as a cell 'barcode', facilitating communication and acting as targets for pathogens. The proteins which recognise carbohydrates in nature are called lectins. Synthetic mimics of these proteins, binding through noncovalent interactions in water, are termed 'synthetic lectins'. The design and synthesis of these synthetic lectins could allow reading of parts of the cell barcode and give a greater understanding of the operat
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Fagla-Amoussou, Akouavi Balbine. "Etude des interactions polluants aromatiques polycycliques (HAP)-récepteurs adrénergiques-phospholipides membranaires dans le tissu adipeux." Thesis, Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL080N/document.

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L'obésité est une maladie définie par une accumulation de masse grasse dans le tissu adipeux ayant des conséquences néfastes pour la santé. Les causes de l’obésité sont multiples. Dans un travail récent, il y a été démontré le rôle de la pollution environnementale dans la prise de poids. Dans ce travail, les hypothèses selon lesquelles les récepteurs adrénergiques situés à la surface des cellules adipeuses seraient le siège de l’action des polluants aromatiques polycycliques ont été vérifiées par le dosage de plusieurs agonistes et antagonistes spécifiques et non spécifiques en présence ou non
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Boateng, Stephen. "Photophysical properties of pyrene, 2,7 diazapyrene and 1,3-bis(β-naphthyl)propane". Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3999/.

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The luminescence properties of Van Der Waals' dimers and clusters of pyrene and diazapyrene have been investigated. Excimers, dimeric species which are associative in an excited electronic state and dissociative in their ground state, have long been established and play an important role in many areas of photochemistry. My work here focuses on the luminescence and absorption properties of ground state dimers/aggregates, which are less understood, and allows further characterization of the ground state and excited state association of these aromatic molecules.
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Chercka, Dennis [Verfasser]. "Pyrene derivatives as donors and acceptors / Dennis Chercka." Mainz : Universitätsbibliothek Mainz, 2015. http://d-nb.info/1069521256/34.

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Books on the topic "Pyrene"

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Associates, Clement. Toxicological profile for benzo[a]pyrene. U.S. Department of Health & Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry, 1990.

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Brady, Carolyn. Uptake and metabolism of benzo (a) pyrene by Plantago Lanceolata. University of Derby], 2002.

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White, Jerry D. Emission rates of carbon monoxide, particulate matter, and benzo(a)pyrene from prescribed burning of fine southern fuels. U.S. Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station, 1987.

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Britain), Energy Institute (Great, and Great Britain Environment Agency, eds. Ambient monitoring of benzo-a-pyrene (B[a]P) emissions at two oil refineries: Energy Institute research report. Energy Institute Press, 2008.

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Britain), Energy Institute (Great, and Great Britain Environment Agency, eds. Ambient monitoring of benzo-a-pyrene (B[a]P) emissions at two oil refineries: Energy Institute research report. Energy Institute Press, 2008.

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Kasapinovic, Sonja. Evaluation of phenytoin and benzo[a]pyrene embryotoxicity using inducible nitric oxide synthase (iNOS) knockout mice in embryo culture. National Library of Canada, 2001.

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Marchal, Michel. Les Jardins de Pyrène. Bibliothèque centrale de prêt, 1986.

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Greig, David. Pyrenees. Faber and Faber, 2005.

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Cazalbou, Jean. Légendaire du pays de Pyrène. Pyregraph, 1992.

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Strang, Paul D. The new complete Great Pyrenees. Howell Book House, 1991.

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Book chapters on the topic "Pyrene"

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Ramírez, Fernando. "Fruit and Pyrene." In Latin American Blackberries Biology. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-58927-0_4.

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Lehrer, S. S., and Y. Ishii. "Intramolecular Excimer Fluorescence of Pyrene Maleimide-Labeled Dithiothreitol (Pyrene-DTT)." In Fluorescent Biomolecules. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-5619-6_40.

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Winkelmann, J. "Diffusion of pyrene (1); air (2)." In Gases in Gases, Liquids and their Mixtures. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_930.

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Winkelmann, Jochen. "Diffusion coefficient of pyrene in hexane." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_856.

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Winkelmann, Jochen. "Diffusion coefficient of pyrene in hexadecane." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_857.

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Winkelmann, Jochen. "Diffusion coefficient of pyrene in water." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_859.

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Winkelmann, Jochen. "Diffusion coefficient of pyrene in hexane." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1074.

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Ross, David S., Georgina P. Hum, and Robert J. Schmitt. "Nitration of Pyrene by NO2and N2O4." In Advances in Chemistry. American Chemical Society, 1987. http://dx.doi.org/10.1021/ba-1988-0217.ch009.

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Vekshin, Nikolai L. "Pyrene Monomers and Excimers in Membranes." In Photonics of Biopolymers. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04947-1_16.

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Radosavljevic, Vladan. "Human Exposure to Benzo[a]pyrene." In Assessing Human Exposure to Key Chemical Carcinogens. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84441-6_12.

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Conference papers on the topic "Pyrene"

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Chawdhury, Debojyoti Ray, Shruti Narayanan, and Prem Ballabh Bisht. "Luminescent pyrene coupled PMMA microcavities for sensing applications." In 2023 IEEE Workshop on Recent Advances in Photonics (WRAP). IEEE, 2023. http://dx.doi.org/10.1109/wrap59682.2023.10712946.

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Chen, Kuan-Wei, Zheng-Yu Wei, Chiao-En Li, Yi-Ting Lee, Tien-Lung Chiu, and Jiun-Haw Lee. "Non-doped blue fluorescent organic light emitting diode based on pyrene derivative." In Advances in Display Technologies XV, edited by Jiun-Haw Lee and Qiong-Hua Wang. SPIE, 2025. https://doi.org/10.1117/12.3041106.

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Ariese, Freek, S. J. Kok, M. Verkaik, et al. "Monitoring benzo(a)pyrene exposure using laser-excited Shpol'skii spectroscopy of benzo(a)pyrene metabolites." In Environmental Sensing '92, edited by Tuan Vo-Dinh and Karl Cammann. SPIE, 1993. http://dx.doi.org/10.1117/12.140258.

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Salazar, V., J. E. Gonza´lez, and L. A. Rivera. "Measurement of Temperatures on In-Flight Water Droplets by Laser Induced Fluorescence Thermometry." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47100.

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This work presents the use of laser induced fluorescence for instantaneous temperature measurements of a 200μm diameter water droplets monodispersed stream traveling downward in a standard stagnant atmosphere. The droplets are doped with small concentrations of a natural fluorescence dye (Pyrene), and with a surfactant substance, cetyldimetylbenzylammoniumchloride (CDBAC) to improve the fluorescence emission. The rate of the two-band pyreme emission (excimer to monomer) is used to determine the temperature. The temperature distribution along the stream of droplets determined for different init
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Talaska, G., B. Schumann, and K. LaDow. "53.1. Kerosene and Pyrene Alter Dna Adduct Levels in Mice Treated Topically with Benzo(A)Pyrene." In AIHce 2002. AIHA, 2002. http://dx.doi.org/10.3320/1.2766404.

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Sutherland, R. L., V. P. Tondiglia, and D. M. Brandelik. "Photochromic Properties Of A Pyrene/Methanol Solution." In 31st Annual Technical Symposium, edited by Carl M. Lampert. SPIE, 1987. http://dx.doi.org/10.1117/12.941887.

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Webster, Ian, and Michael Duncan. "LASER SYNTHESIS AND SPECTROSCOPY OF PYRENE DIMERS." In 2021 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.ff08.

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Ribou, Anne-Cecile, Jean Vigo, Pierre M. Viallet, and Jean-Marie Salmon. "Oxygen measurement in living cells: comparison between a new vital fluorescent pyrene probe labeling mitochondria and pyrene butyric acid." In International Symposium on Biomedical Optics, edited by Daniel L. Farkas and Robert C. Leif. SPIE, 2002. http://dx.doi.org/10.1117/12.468330.

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Shirdel, J., A. Penzkofer, R. Procházka, Z. Shen, and J. Daub. "Photodynamics of pyrene-flavin and phenothiazine-flavin dyads." In The International Conference on Coherent and Nonlinear Optics, edited by Sergey A. Tikhomirov, Thomas Udem, Valery Yudin, Maxim Pshenichnikov, and Oleg M. Sarkisov. SPIE, 2007. http://dx.doi.org/10.1117/12.752443.

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Yamazaki, Iwao, Naoto Tamai, and Tomoko Yamazaki. "Picosecond Fluorescence Spectroscopy on Molecular Association in Langmuir-Blodgett Films." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.mf3.

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The Langmuir-Blodgett (LB) film is a highly-ordered molecular assembly of multilayered architechture which is prepared by transferring a compact monolayer spread on a water surface onto a quartz substrate. In this paper, we report new aspects of molecular association of pyrene in LB multilayers studied by means of a synchronously pumped, cavity-dumped dye laser and a single-photon counting apparatus [1]. LB films with different numbers of layers were prepared from stearic acid and small amounts of 16-(1-pyrenyDhexadecanoic acid (PHA). Dependence of the layered structure and of the concentratio
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Reports on the topic "Pyrene"

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Netzel, T. L. An exploration of sequence specific DNA-duplex/pyrene interactions for intercalated and surface-associated pyrene species. Technical progress report. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10145812.

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Netzel, T. L. An exploration of sequence specific DNA-duplex/pyrene interactions for intercalated and surface-associated pyrene species. Final report, May 1, 1993--December 31, 1996. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/548674.

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Kaizen Matsumoto, Kaizen Matsumoto. Can perfluorocarbon liquids remove benzo(a)pyrene, a model carcinogen from cells? Experiment, 2015. http://dx.doi.org/10.18258/5352.

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Rasmussen, R. E., and A. T. Fong. Metabolism of Benzo(A)Pyrene and Diethylnitrosamine by Lung Cells of Rats, Mice, and Hamsters. Defense Technical Information Center, 1985. http://dx.doi.org/10.21236/ada159383.

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Haugen, D., and S. Myers. Reaction of benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide with human hemoglobin and chromatographic resolution of the covalent adducts. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/7244688.

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Pelletier, Austin, Amanda Hohner, Idil Deniz Akin, et al. Bench-scale Electrochemical Treatment of Co-contaminated Clayey Soil. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-018.

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Industrial soil contamination is frequently unearthed by transportation agencies during construction within the right-of-way. As a result, transportation agencies may experience construction delays. Soils co-contaminated with high-molecular-weight polycyclic aromatic hydrocarbons (HMW-PAHs) and metals are commonly encountered in Illinois and exhibit recalcitrance towards conventional treatment technologies. This issue is exacerbated in the fine-grained soils common to Illinois, where low-permeability and immense sorption capacity increase treatment complexity, cost, and duration. Contaminated
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Carlson, E. A., Y. Li, and J. T. Zelikoff. Inhibition of CYP1A-Mediated Metabolism of Benzo(A)Pyrene (BAP): Effects Upon BAP-Induced Immunotoxicity in Japanese Medaka (Oryzias Latipes). Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada402076.

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Komppula, Birgitta, Tomi Karppinen, Henrik Virta, et al. Air quality in Finland according to air quality measurements and satellite observations. Finnish Meteorological Institute, 2021. http://dx.doi.org/10.35614/isbn.9789523361409.

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In this report the current air quality in Finland has been assessed with air quality measurement data and satellite observations. The assessment of ambient air concentrations included following air impurities: NO2, NOx, PM10, PM2,5, SO2, CO, O3, benzo(a)pyrene, benzene, Pb, As, Cd ja Ni. For these pollutants air quality assessment thresholds are given in air quality legislation (2008/50/EY, 2004/107/EY). Assessment has been performed for air quality zones. The main data set included air quality measurements performed in Finland during 2015–2019. Satellite observations were used as an objective
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Pisutha-Arnond, Visut, Sirichai Sunmanee, and Sudham Yaemniyom. A report on copper skarn deposit at Phu Lon, Amphoe Sang Khom Changwat Nong Khai. Chulalongkorn University, 1988. https://doi.org/10.58837/chula.res.1988.18.

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Based on the geological and petrographical studies and chemical analysis of drill-core and outcrop samples, the geology and mineralization at the Phu Lon area are revealed. The Phu Lon prospect is a Cu-Fe-Au-Ag skarn deposit of porphyry-related type. The copper- and iron-rich zones are hosted predominantly in the garnet-pyroxene skarn that is developed metasomatically at the contact between the diorite-monzodiorite intrusions and a marble with minor calcsilicate unit. The main stage of iron mineralization probably took place during the prograde garnet-pyroxene skarn formation and was genetical
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10

Padget, C. D. W., D. R. M. Pattison, D. P. Moynihan, and O. Beyssac. Pyrite and pyrrhotite in a prograde metamorphic sequence, Hyland River region, SE Yukon: implications for orogenic gold. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328987.

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The distribution of pyrite and pyrrhotite is documented within an andalusite-sillimanite type (high-temperature, low-pressure) metasedimentary succession exposed in the Hyland River region of southeastern Yukon, Canada. The following metamorphic zones are recognized: chlorite, biotite, cordierite/staurolite (porphyroblast-in), andalusite, sillimanite, and K-feldspar + sillimanite. Pyrite occurs in the chlorite zone through the biotite zone, while pyrrhotite occurs from the chlorite zone to K-feldspar + sillimanite zone. The pyrite-pyrrhotite transition, therefore, occupies an interval in the c
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