Relevant bibliographies by topics / Pyrene

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pyrene'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 June 2025

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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 (March 31, 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 the C10-position of N-(pyren-1-yl)picolinamide, possessing a picolinamide directing group, yielded various C1,C10-disubstituted pyrenes. Examples of C(9)–H arylation of pyrene-1-carboxamide and the removal of the directing group after the C–H arylation/alkylation reactions were also shown. The structures of representative pyrene derivatives were confirmed by the X-ray structure analysis. Given the importance of the pyrene derivatives in various fields of chemical sciences, this report is a contribution towards augmentation of the library of pyrene derivatives with C1,C2- and C1,C10-disubstituted pyrene amide motifs.
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TAKEDA, FUMIOMI. "CHARACTERIZATION OF BLACKBERRY PYRENES." HortScience 28, no. 5 (May 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'. Pyrenes of A blackberries generally were ellipsoidal and smaller than E blackberries which were “clam” shaped. Pyrenes of E blackberries such as `Black Satin' and `Chester' had a thick endocarp and were much thicker and wider than A and O blackberries. In contrast, several O blackberries including 'Marion' had flat pyrenes with a soft, thin endocarp. The results of this study indicate that the pyrene thickness trait is a major factor contributing to seediness.
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Arulananda Babu, Srinivasarao, Arup Dalal, and Subhankar Bodak. "Recent Advances in C–H Functionalization of Pyrenes." Chemistry 5, no. 4 (December 11, 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, have been developed for synthesizing modified pyrene scaffolds. This review attempts to cover the recent developments in the area pertaining to the modification of the pyrene motif through the C–H activation process and the functionalization of C–H bonds present in the pyrene motif, leading to functionalized pyrenes.
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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 (September 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 standards.
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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 (May 6, 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 weakly at 400 nm (typical for pyrene-DAE quenching). Only open DAE-bis-pyrene form interacted measurably with ds-DNA/RNA by flexible insertion in polynucleotide grooves, while self-stacked closed form did not bind to DNA/RNA. For the same steric reasons, flexible open DAE-bis-pyrene form was bound to at least three different binding sites at bovine serum albumin (BSA), while rigid, self-stacked closed form interacted dominantly with only one BSA site. Preliminary screening of antiproliferative activity against human lung carcinoma cell line A549 revealed that all DAE-derivatives are non-toxic. However, bis-pyrene analogue efficiently entered cells and located in the cytoplasm, whereby irradiation by light (315–400 nm) resulted in a strong, photo-induced cytotoxic effect, typical for pyrene-related singlet oxygen species production.
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Babu, B. Ravindra, Mads D. Sørensen, Patrick J. Hrdlicka, Smriti Trikha, Ashok K. Prasad, Virinder S. Parmar, and Jesper Wengel. "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 (January 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 within a DNA duplex.
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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 (October 23, 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 with NUTS 2. Diseases were defined according to ICD-10.Results: There is a positive correlation of medium effect (r = 0.442; p < 0.001) between the annual average concentration of benzo(a)pyrene and deaths due to malignant neoplasms, with the strongest correlation being malignant bladder neoplasms (r = 0.502; p < 0.001). There is a positive correlation of a moderately weak effect (r = 0.221; p = 0.002) between the annual average concentration of benzo(a)pyrene and deaths due to respiratory diseases, with the strongest correlation for pneumonia of various etiologies, which is a positive correlation of a medium effect (r = 0.496; p < 0.001). Linear regression models showed that reducing the concentration of benzo(a)pyrene by 1 ng/m3 will reduce the frequency of deaths due to malignant laryngeal neoplasms by 0.816 per 1000 residents, malignant bladder neoplasms by 1.41 per 1000 residents, and deaths due to pneumonia by 11.26 per 1000 residents.Conclusions: We have found that benzo(a)pyrene concentration has a moderate correlation with death due to respiratory diseases and malignant neoplasms. More in-depth studies regarding other factors, e.g. the age of the patient are needed.
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Mimura, Yuki, Tomoki Nishikawa, Ryo Fuchino, Shiho Nakai, Nobuo Tajima, Mizuki Kitamatsu, Michiya Fujiki, and Yoshitane Imai. "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 (July 1, 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 interactions may occur between adjacent pyrenes in the gelsolin structure. In the case either of excimer formation or of ground-state pyrene–pyrene interactions in doubly labelled gelsolin molecules, the modified Cys residues must be in close proximity in the folded protein structure. Thermal denaturation of gelsolin could be monitored by observing the decrease in excimer emission that accompanied heating and unfolding of the tertiary structure. While heat treatment alone did not eliminate excimer fluorescence, digestion of gelsolin with chymotrypsin completely abolished such emission. Also, pyrenyl-gelsolin prepared and studied in 6 M guanidine-HCl exhibited fluorescence characteristic of pyrene monomers exclusively.Key words: gelsolin, pyrene excimer fluorescence, fluorescence lifetime, thermal denaturation.
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Ruiu, Andrea, Mireille Vonlanthen, Sandra M. Rojas-Montoya, Israel González-Méndez, and Ernesto Rivera. "Unusual Fluorescence Behavior of Pyrene-Amine Containing Dendrimers." Molecules 24, no. 22 (November 12, 2019): 4083. http://dx.doi.org/10.3390/molecules24224083.

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A new class of pyrene-based dendrimers, characterized by the presence of a 1,4,7,10-Tetraazacyclododecane (cyclen) unit as the core, was studied by SSF (steady-state fluorescence) and SPC (single-photon counting fluorescence). The photophysical behavior of these dendrimers was studied in THF, DMF and DMSO solution. The typical signals for pyrene-labeled molecules were recorded in each solvent, showing the representative fluorescence spectra: the corresponding emissions of monomer and excimer of the pyrene chromophore are observed. Unexpectedly, the typical quenching of tertiary amine on the pyrene emission was not observed in these dendrimers. Quenching studies were performed by adding up to 3 equivalents of trifluoroacetic acid (TFA). To our knowledge, this is the first report of pyrene’s unquenching behavior by a tertiary amine.
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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 energy gap of 1.8 eV. The maximum absorption of IDPs is shifted by 160 nm compared to the parent indenofluorene. Two quasi-reversible oxidation as well as reduction steps indicate an excellent redox behavior attributed to the antiaromatic core. Formation of the radical cation and the dication was monitored by UV/vis absorption spectroscopy during titration experiments. Notably, the fusion of s-indacene with two pyrene moieties lead to IDPs with absorption maxima approaching the near infrared (NIR) regime.
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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, sensing and drug delivery. In this thesis the synthesis and characterisation of pyrene based MOFs is presented and the hydrogen evolution photocatalytic applications are tested. This thesis contains details on three different MOFs. Firstly a new aluminium pyrene MOF which was characterised and tested for photocatalysis and CO 2 and CH 4 storage applications; which also had platinum nanoparticles successfully incorporated within the pores. Secondly a very recently reported zirconium pyrene MOF was made, had its photocatalytic applications exp lored for the first time and had platinum deposited within the pores. Thirdly a new Europium Pyrene MOF was developed using high throughput techniques and its new structure was calculated from single crystal XRD.
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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 Quartzarênico, Organossolo e Vertissolo. Foram realizados ensaios de adsorção usando massa de amostra dos solos de 2,5 g e 5,0 g. Para todas as categorias de solos estudados observou-se diferentes tempos de equilíbrio tanto nos estudos feitos com 2,5 g de solo quanto naqueles com 5,0 g. Nos experimentos realizados com a menor massa (2,5 g), observou-se que os perfis das curvas de adsorção para o Latossolo Vermelho acriférrico e para o Vertissolo apresentaram diferenças significativas sugerindo maiores competições pelos sítios de sorção. Para as demais categorias não foi observada diferença significativa no perfil das curvas de adsorção. Verificou-se ainda que não foi somente o teor de matéria orgânica responsável pelo equilíbrio do processo de adsorção como esperado. A presença de argilas expansivas pode ter contribuição para o aumento da quantidade de pireno adsorvida no solo (Q), como foi verificado para o Vertissolo. Foi observado que as categorias de solos estudadas apresentam características físico-químicas e Koc muito diferentes indicando que o processo de adsorção de pireno nestes solos não pode ser considerado como um modelo único. Neste trabalho o processo de adsorção de pireno foi descrito pelas isotermas de Langmuir (Argissolo e Latossolo Vermelho acriférrico), de Langmuir com linearização (Latossolo Vermelho Amarelo distrófico), de BET (Neossolo Quartzarênico) e isoterma linear (Vertissolo). Os resultados obtidos para o Latossolo Amarelo não se ajustam aos modelos de isotermas testados.<br>Since most of the studies that involve polycyclic aromatic hydrocarbons (PAH) adsorption in soils are make in regions of temperate or cold climate. In tropical countries, the characteristics of the pedological processes and the resultant soils are quite different there is the necessity of working on new studies in the Brazilian soils. In this dissertation, the pyrene adsorption in seven differents Brazilian soils was studied: Clays soils, Yellow Latosoil, Red Anionic Latosoil, Red Yellow Latosoil, Neosoil Quartzarenic, Organic soil and Vertisoil. Two groups of adsorption tests were carried out, in the first one we used samples of 2.5g of soil and in the second one the soil mass was increased to 5.0g. To all soils, it was possible to observe that, when the initial mass of soil was changed, different times of reaction were needed so that the sorption process could reach the thermodynamic equilibrium. And yet because of this bigger competition, the profile of the Red Anionic Latosoil and Vertisoil curves, obtained by the usage of different pyrene/soil relations, presented meaningful differences when compared. The presence of the swelling clays may contribute to the increase of the quantity of pyrene adsorpted in the soil (Q), such as happened in the Vertisoil. In this work, was found the Langmuir`s isotherms to Clays soils and Red Yellow Latosoil, BET to Neosoil Quartzarenic and linear isotherm to Vertisoil.
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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 operation of natural lectins. Furthermore, robust selective synthetic lectins could act as sensors for important sugars such as N-acetylglucosamine (important in protein regulation) or blood glucose levels (for surgery or diabetics). However the design of synthetic lectins that are able to overcome the hydromimetic nature of carbohydrates and show selectivity between carbohydrates is very difficult. Within this body of work a variety of synthetic lectin architectures are presented, with their design, synthesis and binding properties reported. Two designs within are of particular note. Firstly, a highly cationic pyrene based platform shaped receptor (PyPlat-Guan) was prepared to target α-sialosides (components of important antigens such as Sialyl Lewis X). This resulted in strong selective binding of methyla α-sialoside and both the first non-macrocyclic synthetic lectin and the first synthetic lectin with divalency by design. Secondly, a pyrene based four-pillared cage receptor was prepared (Py4P) to target O-linked N-acetylglucosamine (O-GlcNAc). This resulted in a pair of receptor isomers, which demonstrate the highest binding affinities ever obtained by a synthetic lectin for a monosaccharide. It was then also possible to test the interaction of these synthetic lectins with a glycopeptide, which was bound with unprecedented affinity.
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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 du benzo[a]pyrène sur des récepteurs humains et de cellules d’hamster chinois (CHO). Les quantités d’AMPc obtenues montrent que les HAP ne se déposent pas sur les récepteurs β1, β2, β3 adrénergiques.Cette accumulation se fait au niveau des phospholipides de la membrane cytoplasmique des cellules. Ce qui cause une rigidité des membranes.Cette observation tend à renforcer l'hypothèse selon laquelle le benzo[a]pyrène induirait une inhibition de la lipolyse par l'accumulation au niveau de la bicouche de phospholipides et des changements de conformation de la bicouche de phospholipides dans les environs des récepteurs à sept domaines transmembranaires qui sont β-adrénergiques.La liaison de la bicouche phospholipidique avec les HAP utilisés est une réaction exothermi-que avec un faible dégagement de chaleur<br>Obesity is a disease defined by an accumulation of fat in adipose tissue with adverse consequences for health. The causes of obesity are many.In recent work, there was demonstrated the role of environmental pollution in weight gain.In this work, the assumptions that the adrenergic receptors on the surface of fat cells would home to the accumulation of polycyclic aromatic pollutants have been verified by measurement of several agonists and antagonists specific and non-specific in the presence or absence of benzo[a]pyrene receptors on human cells and Chinese hamster (CHO). The amounts of cAMP obtained showed that PAHs are not deposited on β-receptors, β1, β2, β3 adrenergic receptors.This accumulation occurs at the cytoplasmic membrane phospholipids of the cells. What cau-ses stiffness of the membranes. This observation tends to reinforce the hypothesis that benzo [a]pyrene induce an inhibition of lipolysis by the accumulation in the phospholipid bilayer and conformational changes of the bilayer phospholipids in the vicinity of receptors seven transmembrane domains which are β-adrenergic receptors
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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. [Atlanta, Ga.]: 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. [Derby: 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. [Asheville, N.C.]: 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. London: 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. London: 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. Ottawa: National Library of Canada, 2001.

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

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

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Cazalbou, Jean. Légendaire du pays de Pyrène. Aspet [France]: Pyregraph, 1992.

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Strang, Paul D. The new complete Great Pyrenees. New York: 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, 57–78. Cham: 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, 423–25. Boston, MA: 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, 1253. Berlin, Heidelberg: 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, 1080. Berlin, Heidelberg: 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, 1081. Berlin, Heidelberg: 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, 1083. Berlin, Heidelberg: 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, 1565. Berlin, Heidelberg: 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, 155–68. Washington, DC: 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, 165–71. Berlin, Heidelberg: 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, 51–54. Cham: 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), 1–3. 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, 31. SPIE, 2025. https://doi.org/10.1117/12.3041106.

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Ariese, Freek, S. J. Kok, M. Verkaik, Gerard P. Hoornweg, Cees Gooijer, Nel H. Velthorst, and Johannes W. Hofstraat. "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 initial temperatures: (30°C, 40°C and 50°C) at the exit of the nozzle compared very favorably with numerical results.
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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. Urbana, Illinois: 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. Washington, D.C.: 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 concentration of PHA on molecular association was investigated. Figure 1 shows an typical example of time-resolved fluorescence spectra of the LB film. Four kinds of fluorescence bands appear depending on the time region. (1) F 1 band at 0-200 ps with three peaks located at 380, 400 and 421 nm. This band is shifted by 3 nm to longer wavelength relative to F2 band. (2) E 1 band at 100 ps-7.0 ns. A broad band with a peak at 422 nm. (3) E 2 band after 1 ns with a peak at 470 nm, corresponding to the well-known fluorescence of pyrene excimer in solution. (4) F 2 band after 3 ns with peaks at 377, 397 and 421 nm. This band is assigned to the monomer fluorescence of pyrene. The fluorescence excitation spectra are different depending on the monitoring wavelength: the excitation spectrum of the monomer region exhibits peaks at 345 and 329 nm for 1La absorption band of pyrene, while that of the excimer E2 at 347 and 331 nm. This means that the pyrene chromophores in the LB film form an associated complex in the ground state. The fluorescence decay curves for various concentrations of PHA are reasonably analyzed in terms of (1) rapid excimer formation in the dimer sites and (2) energy transfer and trapping in the isolated-monomer site. The dimer fluorescence F1 rapidly decays, and its decay (150 ps) is associated with a rise of the excimer fluorescence E2 indicating that the excimer (E2) forms through the dimer (F1). The excimer fluorescence E1 also shows a rise with much shorter rise time than that of E2. From the spectral difference between E1 and E2, the conformation of the excimer (E1) should be significantly different from that of E2 which is known to be of a sandwich type. Its conformation is of a type of partially overlapping pyrene rings.
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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), January 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), March 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, June 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. Fort Belvoir, VA: Defense Technical Information Center, July 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), January 1990. http://dx.doi.org/10.2172/7244688.

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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). Fort Belvoir, VA: Defense Technical Information Center, March 2001. http://dx.doi.org/10.21236/ada402076.

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Pelletier, Austin, Amanda Hohner, Idil Deniz Akin, Indranil Chowdhury, Richard Watts, Xianming Shi, Brendan Dutmer, and James Mueller. Bench-scale Electrochemical Treatment of Co-contaminated Clayey Soil. Illinois Center for Transportation, June 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 sites are spatially and temporally restrictive and require rapid in situ treatments, whereas conventional soil remediation requires 1 to 3 years on average. Consequently, transportation agencies typically pursue excavation and off-site disposal for expediency. However, this solution is expensive, so a comparatively expeditious and affordable treatment alternative is needed to combat the increasing cost of hazardous waste disposal. The objective of this work was to develop an accelerated in situ treatment approach adaptable for use at any construction site to cost-effectively remove HMW-PAHs and metals from clayey soil. It was hypothesized that an in situ electrochemical treatment which augments electrokinetics with H2O2 could remediate both HMW-PAHs and metals in less than a month. Bench-scale reactors resemblant of field-scale in situ electrokinetic systems were designed and fabricated to assess the electrochemical treatment of clayey soils contaminated with HMW-PAHs and metals. Pyrene, chromium, and manganese were used as model contaminants, spiked into kaolinite as a model clay. Electrokinetics were imposed by a low-intensity electrical field distributed by graphite rods. Electrolytic H2O2 systems were leveraged to distribute electrical current and facilitate contaminant removal. Average contaminant removals of 100%, 42.3%, and 4.5% were achieved for pyrene, manganese, and chromium, respectively. Successful development of this bench-scale treatment approach will serve to guide transportation agencies in field-scale implementation. The results from this work signify that electrochemical systems that leverage eco-friendly oxidant addition can replace excavation and disposal as a means of addressing clayey soils co-contaminated with HMW-PAHs and metals.
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Komppula, Birgitta, Tomi Karppinen, Henrik Virta, Anu-Maija Sundström, Iolanda Ialongo, Kaisa Korpi, Pia Anttila, Jatta Salmi, Johanna Tamminen, and Katja Lovén. Air quality in Finland according to air quality measurements and satellite observations. Finnish Meteorological Institute, September 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 assessment tool in analysis of the spatial variation of NO2 and CO concentrations. Air quality measurements show that air quality has improved in Finland in many respects. Especially the need to monitor NO2 and PM10 with continuous measurements has decreased. Growing understanding of national benzo(a)pyrene concentrations has increased the monitoring needs. Efforts to decrease ozone levels still requires international actions. SO2, CO, benzene and heavy metal concentrations are on a low level in Finland outside industrial areas and other assessment methods than continuous monitoring can be used, and the number of continuous monitoring sites has already decreased. Satellite-based concentrations of nitrogen dioxide and carbon monoxide as well as their spatial variation in Finland were analyzed using observations from the TROPOsperic Monitoring Instrument (TROPOMI). The analysis of CO over Finland was carried out for the first time in this project. Results show that overall annual CO concentrations over Finland are low and spatial variability is small. Also, NO2 concentrations over Finland are rather low, but spatial patterns are more clearly visible. The highest NO2 concentrations are observed over the largest cities. By establishing a relationship between ground-based and satellite total column concentrations, surface concentrations of NO2 and CO were estimated from the satellite data for the zones. The satellite-based estimate for annual NO2 surface concentration over Helsinki metropolitan area is 28 μg/m3, and for the rest of Finland mostly between 10–15 μg/m3. For CO the differences between monitoring areas are small, with estimates varying between 160–164 μg/m3 or in other words about 0,16 mg/m3.
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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 genetically related to the diorite-monzodiorite. The ore minerals include magnetite, minor chalcopyrite and pyrite, and occur in the form of massive patches or bands in the skarn. Quartz monzonite porphyry – monzonite dikes/stocks post-date the diorite-monzodiorite and the garnet-pyroxene skarn. Extensive alterations overprinting on both intrusive and volcanic rocks (i.e., potassic, phyllic and propylitic) are probably related to the cooling of quartz monzonite porphyry-monzonite. Close accompanying the alterations, the main stage of copper mineralization and retrograde skarn alteration of epidote-chlorite-calcite commenced. The mineralization occurs in the from of chalcopyrite-pyrite-quartz veins/veinlet networks predominantly in the skarn unit. Other associated minerals include magnetile, hematite and molybdenite. Trace amounts of gold and silver are chemically detected and probably associated with the copper mineralization. Their contents are comparable to those of the similar copper-gold deposit class. It is attractive for persuading further exploration.
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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 chlorite and lower biotite zones that is terminated upgrade by a pyrite-out isograd in the upper part of the biotite zone or lowest grade part of the cordierite/staurolite zone. Pressure and temperature conditions of the rocks were estimated from phase equilibrium modelling and from Raman spectroscopy of carbonaceous material (RSCM) thermometry. Modelling indicates pressures of 3.7-4.1 kbar with temperatures of ~425 °C at the biotite isograd, 560-570 °C for chlorite-out/porphyroblast-in, ~575 °C for andalusite-in, 575-600 °C for the sillimanite isograd, and 645-660 °C at the K-feldspar + sillimanite isograd. RSCM temperatures are greater than or equal to 420 °C in the Chl zone, 500 °C at the Bt isograd, 525-550 °C for porphyroblast-in isograd, ~550 °C at the And isograd, and 580 °C at the Sil isograd. These results suggest the pyrite-pyrrhotite transition occurs from less than or equal to 420°C to ~560 °C. Thermodynamic modelling shows 0.6 wt. % H2O is released during metamorphism over the ~140 °C interval of the pyrite-pyrrhotite transition. The gradual release of fluid in the biotite zone is interpreted to have broadened the pyrite-pyrrhotite transition compared to other studies that predict a small interval of vigorous fluid release associated with volumetric chlorite consumption. Samples from the pyrite-pyrrhotite transition zone contain lower whole rock and pyrite Au values than samples from unmetamorphosed/lower rocks, suggesting that Au was removed from the rock at conditions below the pyrite-pyrrhotite transition (&amp;amp;lt;420 °C). The chlorite zone and higher-grade metamorphic rocks of the Hyland River area do not appear to be a plausible source region for orogenic gold.
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