Letteratura scientifica selezionata sul tema "PAH dimers"
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Articoli di riviste sul tema "PAH dimers":
Lange, K., C. Dominik e A. G. G. M. Tielens. "Stability of polycyclic aromatic hydrocarbon clusters in protoplanetary discs". Astronomy & Astrophysics 653 (settembre 2021): A21. http://dx.doi.org/10.1051/0004-6361/202140590.
Adamson, Brian A., Scott A. Skeen, Musahid Ahmed e Nils Hansen. "Nucleation of soot: experimental assessment of the role of polycyclic aromatic hydrocarbon (PAH) dimers". Zeitschrift für Physikalische Chemie 234, n. 7-9 (27 agosto 2020): 1295–310. http://dx.doi.org/10.1515/zpch-2020-1638.
Webster, Ian J., Jacob L. Beckham, Natalie D. Johnson e Michael A. Duncan. "Photochemical Synthesis and Spectroscopy of Covalent PAH Dimers". Journal of Physical Chemistry A 126, n. 7 (12 febbraio 2022): 1144–57. http://dx.doi.org/10.1021/acs.jpca.1c10606.
Mao, Qian, Juan Zhou, Kai H. Luo e Adri C. T. van Duin. "Atomistic insights into the dynamics of binary collisions between gaseous molecules and polycyclic aromatic hydrocarbon dimers". Physical Chemistry Chemical Physics 21, n. 7 (2019): 3849–56. http://dx.doi.org/10.1039/c8cp07060a.
Mercier, X., O. Carrivain, C. Irimiea, A. Faccinetto e E. Therssen. "Dimers of polycyclic aromatic hydrocarbons: the missing pieces in the soot formation process". Physical Chemistry Chemical Physics 21, n. 16 (2019): 8282–94. http://dx.doi.org/10.1039/c9cp00394k.
Zemskova, Marina, Nolan McClain, Maki Niihori, Mathews V. Varghese, Joel James, Ruslan Rafikov e Olga Rafikova. "Necrosis-Released HMGB1 (High Mobility Group Box 1) in the Progressive Pulmonary Arterial Hypertension Associated With Male Sex". Hypertension 76, n. 6 (dicembre 2020): 1787–99. http://dx.doi.org/10.1161/hypertensionaha.120.16118.
Kholghy, M. R., G. A. Kelesidis e S. E. Pratsinis. "Reactive polycyclic aromatic hydrocarbon dimerization drives soot nucleation". Physical Chemistry Chemical Physics 20, n. 16 (2018): 10926–38. http://dx.doi.org/10.1039/c7cp07803j.
Calvo, F., E. Yurtsever e Ö. Birer. "Possible Formation of Metastable PAH Dimers upon Pickup by Helium Droplets". Journal of Physical Chemistry A 120, n. 10 (4 marzo 2016): 1727–36. http://dx.doi.org/10.1021/acs.jpca.5b12394.
Yuditskaya, Susan, Ashaunta Tumblin, Gerard T. Hoehn, Guanghui Wang, Steven K. Drake, Xiuli Xu, Saixia Ying et al. "Proteomic identification of altered apolipoprotein patterns in pulmonary hypertension and vasculopathy of sickle cell disease". Blood 113, n. 5 (29 gennaio 2009): 1122–28. http://dx.doi.org/10.1182/blood-2008-03-142604.
Giaccai, Jennifer A., e J. Houston Miller. "Examination of the electronic structure of oxygen-containing PAH dimers and trimers". Proceedings of the Combustion Institute 37, n. 1 (2019): 903–10. http://dx.doi.org/10.1016/j.proci.2018.05.057.
Tesi sul tema "PAH dimers":
Wang, Dong. "Making dimers of light-harvesting complexes from purple bacteria using copper–free click chemistry". Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0062/document.
The light harvesting apparatus of photosynthetic bacteria absorb the energy from sunlight and transfer the energy with high efficiency to the reaction center, where it is captured for use by the cell. We know little about the details of energy transfer between different light-harvesting complexes. In this thesis I isolated several different types of light-harvesting complex from various stains of purple bacteria. 3D models were built, based on homology modeling, and possible dimer structures were examined. The cross linking sites in these protein shown the possiblity of forming biologically relevant dimer structures. I have developed a protocol to make dimers, from highly oligomeric light harvesting proteins. The protocol developed contains three main steps: first reaction of lysines in the complex at a very low degrees of reaction and purifying the labelled protein. Then coupling the reactive groups of dibenzylcyclootyne (DBCO) or of azide separately to the different complexes. Finally, the copper free strain promoted azide-alkyne cycloaddition reaction occurred to synthesize the dimer
Labarrière, Luc. "Spectroscopic properties of environmental relevant systems : 2’,3-dihydroxyflavone-ion complexes and polycyclic aromatic hydrocarbons : a joint experimental and theoretical study". Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILR069.
This manuscript reports the results of an experimental and theoretical study of two molecular systems of environmental interest: 2',3-dihydroxyflavone (2'3HF) and polycyclic aromatic hydrocarbons (PAH). These systems were studied by a combination of electronic spectroscopic techniques (absorption and fluorescence) and quantum chemical calculations (DFT and TD-DFT). In the first part of this thesis, it is shown that 2'3HF has singular acid-base properties compared to other flavonols. The decrease of the pKa by several units is attributed to the presence of a hydrogen-bond network. In the excited state, an intramolecular proton transfer causes a dual fluorescence. An additional emission band, seemingly originating from a tautomeric form perturbed by interaction with the solvent, was revealed. Finally, an exhaustive study of the Ca(II), Mn(II) and Zn(II) complexes showed the formation of chelates with the α-hydroxyketone function. In the second part, three structural hypotheses to explain the experimental observation of visible-range laser-induced fluorescence (LIF) were explored. A study of van der Waals (vdW) dimers of PAHs provided insights into the nature of the monomer interaction and highlighted the difficulty of modelling these systems. However, the calculated electronic transitions suggest that these species cannot be responsible for the LIF signals. Secondly, an identical study of aliphatically bridged PAHs showed very similar results to vdW dimers, ruling out their involvement in the observed fluorescence. Finally, the hypothesis of emission from PAH radicals was explored. The latter is very promising and opens the way for further experimental and theoretical studies
Colomban, Cédric. "Défluoration oxydante des aromatiques per- et polyfluorés catalysée par des complexes binucléaires à fer hémiques". Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10254/document.
Oxidations of strong C-H and transformation of carbon-halogen bonds under mild conditions are especially difficult and challenging reactions. This reactivity can be achieved in Nature through iron metalloenzymes. In order to reproduce the efficient chemistry found in Nature, we develop bio-inspired diiron macrocyclic catalysts combining the structural features of two the most powerful monooxygenases: cytochrome P450 and soluble methane monooxygenase. Diiron catalysts where two iron atoms are bridged by μ-nitrido group and stabilized by macrocyclic supporting ligands can activate peroxides such as H2O2 for the most challenging oxidations reactions (methane, benzene, dichloromethane) under mild and practical conditions. This thesis is focused on the use of these bio inspired systems for the previously unknown oxidative transformation of the aromatic C-F bonds. This novel approach to the activation of C-F bonds can be used for the mineralization of notorious pollutants: the halogenated aromatics. We (i) described the reactivity of phthalocyanine and porphyrin complexes and (ii) studied the mechanism to (iii) understand and explain the key parameters which gouverns the catalytic efficiency. We had reported the first system able to transform aromatic C-F bonds onto C-OH bonds under mild conditions. Based on mechanistic studies, an epoxidation mechanism mediated by diiron-oxo species has been proposed. We have studied the influence of the bridging atom on the structure and the catalytic efficiency of the catalysts using both spectroscopic and theoretical methods. Finally, the effect of the macrocyclic ligand on molecular geometry and electronic structure of the complexes have been described through the synthesis, the characterization and the comparison of diiron complexes based on porphyrazine, porphyrin or phthalocyanine ligands
Rose, Clémence. "De la synthèse de porphyrines fonctionnalisées par des sels d'imidazolium à la formation de dimères de porphyrines cofaciales assemblées par des liaisons métal-carbène". Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS083.
This PhD work is devoted to the synthesis of porphyrins functionalized in meso positions with one or four imidazolium rings. First of all, these compounds have been tested as photosensitizers for in vitro studies for photodynamic therapy (PDT) applications on breast cancer cells MCF-7. Regarding to the efficiency of some of them in PDT, chlorine-based compounds functionalized with an imidazole/imidazolium ring have also been synthesized through hemi-synthetic pathway, with spirulina-extracted chlorophyll a as precursor. Then, porphyrins functionalized in meso positions with four imidazolium rings have been used as precursors of N-heterocyclic carbenes (NHC) ligands for the synthesis of cofacial porphyrin dimers assembled by M-CNHC bonds. The modularity of these assemblies has been explored by modifying assembling metal cations (M = AgI, AuI), organic spacers between porphyrins and NHCs or the nature of the intern metal M’ located in the porphyrin cores of the dimer (M’ = 2H, ZnII, CoII/III). Electronic and biological properties of these dimers have been investigated. Preliminary results have also been obtained in the field of host-guest chemistry (encapsulation of small molecules) and in electrocatalysis for the O2 reduction reaction (ORR)
Laslier, Benoît. "Dynamique stochastique d'interface discrète et modèles de dimères". Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-01044463.
Laslier, Benoît. "Dynamique stochastique d’interface discrète et modèles de dimères". Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10110/document.
We studied the Glauber dynamics on tilings of finite regions of the plane by lozenges or 2 × 1 dominoes. These tilings are naturally associated with surfaces of R^3, which can be seen as interfaces in statistical physics models. In particular, lozenge tilings correspond to three dimensional Ising model at zero temperature. More precisely, tilings of a finite regions are in bijection with Ising configurations with some boundary conditions (depending on the tiled domain). These boundary conditions impose the coexistence of the + and - phases, together with the position of the boundary of the interface. In the thermodynamic limit where L, the characteristic length of the system, tends toward infinity, these interface follow a law of large number and converge to a deterministic limit shape depending only on the boundary condition. When the limit shape is planar and for lozenge tilings, Caputo, Martinelli and Toninelli [CMT12] showed that the mixing time of the dynamics is of order (L^{2+o(1)}) (diffusive scaling). We generalized this result to domino tilings, always in the case of a planar limit shape. We also proved a lower bound Tmix ≥ cL^2 which improve on the result of [CMT12] by a log factor. When the limit shape is not planar, it can either be analytic or have some “frozen” domains where it is degenerated in a sense. When it does not have such frozen region, and for lozenge tilings, we showed that the Glauber dynamics becomes “macroscopically close” to equilibrium in a time L^{2+o(1)}
Costalat, Robert. "Photophysique de l'induction de dimères de thymine par des psoralènes". Paris 13, 1988. http://www.theses.fr/1988PA13A001.
LIBOSSART, SABINE. "Etude de la fibrinolyse chez les sujets normaux et dans les etats thromboemboliques. Interet du dosage de d. Dimeres liberes par lyse spontanee d'un caillot plasmatique". Lille 2, 1993. http://www.theses.fr/1993LIL2P006.
De, Crozals Gabriel. "Multi-fonctionnalisation par synthèse supportée de nanoparticules de silice pour des applications biomédicales". Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10264.
Nanomaterials combining targeting, imaging, therapy and sensing properties are of growing interest for biomedical applications. The work reported in this thesis concerns nanoparticle (NP) multifunctionalization by solid phase synthesis. The solid support developed in this study is composed of a porous glass material on which silica NPs are temporarily grafted. Nanoparticle surface functionalization was performed by automated synthesis using phosphoramidite chemistry. Firstly, high surface loadings from 5000 to 7000 oligonucleotides per NP were achieved, representing a functionalization 10 to 20‐fold greater than those obtained by coupling methods in solution. DNA strands synthesized on NPs showed a good accessibility for hybridization with a complementary DNA strand, paving the way for therapeutic applications or integration of these objects in detection systems. The second part of this work was devoted to the vectorization of a therapeutic protein, GCSF (Granulocyte‐Colony Stimulating Factor) by nanoparticles that also exhibited imaging properties. These therapeutic nanocarriers showed cell stimulating properties in vitro and spleen targeting, which is a reservoir of neutrophils, in vivo. Finally, it was demonstrated that the solid phase modification of NPs opens interesting perspectives for the production of complex nanoparticle assemblies (dimers and asymmetric NPs)
Danset, Delphine. "Etude des premières étapes réactionnelles de l'oxydation du cobalt mono- et diatomique par l'oxygène moléculaire par isolation en matrice de gaz rare et spectroscopies d'absorption électronique et vibrationnelle". Paris 6, 2004. http://www.theses.fr/2004PA066075.
Libri sul tema "PAH dimers":
Camil, Demetrescu, Goldberg Andrew V e Johnson David S. 1945-, a cura di. The shortest path problem: Ninth DIMACS implementation challenge. Providence, R.I: American Mathematical Society, 2009.
A, Armstrong Fraser, a cura di. Bioinorganic chemistry. Berlin: Springer-Verlag, 1990.
Echeverri Rubio, Alejandro, David Díez, Natalia Mejía Franco, Jaime Andrés Vieira, Erik Marcelo Sepúlveda, Aned Esquerra Arguelles, Daniel Mosquera Artamanov et al. Aproximaciones académicas a los ODS. ¿Qué significa asegurar la prosperidad para todos? A cura di Carol Viviana Castaño-Trujillo. 2020a ed. Editorial Corporación Universitaria del Meta -UNIMETA, 2020. http://dx.doi.org/10.52043/nwda5902.
Capitoli di libri sul tema "PAH dimers":
Abdalla, Sahar, e Reinhold F. Fink. "Analyzing Interaction Energy of Polycyclic Aromatic Hydrocarbons (PAH) Dimers". In Crystallizing Ideas – The Role of Chemistry, 113–26. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31759-5_8.
Barrett, Christopher, Keith Bisset, Martin Holzer, Goran Konjevod, Madhav Marathe e Dorothea Wagner. "Engineering label-constrained shortest-path algorithms". In DIMACS Series in Discrete Mathematics and Theoretical Computer Science, 309–19. Providence, Rhode Island: American Mathematical Society, 2009. http://dx.doi.org/10.1090/dimacs/074/12.
Zaks, Shmuel. "Path layout in ATM networks–A survey". In Networks in Distributed Computing, 145–60. Providence, Rhode Island: American Mathematical Society, 1998. http://dx.doi.org/10.1090/dimacs/045/09.
Santos, J. "Real-world applications of shortest path algorithms". In DIMACS Series in Discrete Mathematics and Theoretical Computer Science, 1–17. Providence, Rhode Island: American Mathematical Society, 2009. http://dx.doi.org/10.1090/dimacs/074/01.
Bast, Holger, Stefan Funke e Domagoj Matijevic. "Ultrafast shortest-path queries via transit nodes". In DIMACS Series in Discrete Mathematics and Theoretical Computer Science, 175–92. Providence, Rhode Island: American Mathematical Society, 2009. http://dx.doi.org/10.1090/dimacs/074/07.
Frank, András. "Finding minimum weighted generators of a path system". In Contemporary Trends in Discrete Mathematics, 129–38. Providence, Rhode Island: American Mathematical Society, 1999. http://dx.doi.org/10.1090/dimacs/049/07.
Goldberg, Andrew, Haim Kaplan e Renato Werneck. "Reach for A*: shortest path algorithms with preprocessing". In DIMACS Series in Discrete Mathematics and Theoretical Computer Science, 93–139. Providence, Rhode Island: American Mathematical Society, 2009. http://dx.doi.org/10.1090/dimacs/074/05.
Pippenger, Nicholas. "Average-case bounds for the complexity of path-search". In Advances in Switching Networks, 1–13. Providence, Rhode Island: American Mathematical Society, 1998. http://dx.doi.org/10.1090/dimacs/042/01.
Morimoto, Nobuhiko, Masanori Arita e Akira Suyama. "Solid phase DNA solution to the Hamiltonian path problem". In DNA Based Computers III, 193–206. Providence, Rhode Island: American Mathematical Society, 1999. http://dx.doi.org/10.1090/dimacs/048/15.
Misra, Debananda, V. Sundararajan e Paul Wright. "Zig-zag tool path generation for sculptured surface finishing". In Geometric and Algorithmic Aspects of Computer-Aided Design and Manufacturing, 265–80. Providence, Rhode Island: American Mathematical Society, 2005. http://dx.doi.org/10.1090/dimacs/067/10.
Atti di convegni sul tema "PAH dimers":
Webster, Ian, e Michael Duncan. "SYNTHESIS AND SPECTROSCOPY OF PAH DIMERS". In 2020 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.wi06.
Isogai, Akira. "Factors Influencing on Retention of Alkylketene Dimer". In The Fundamentals of Papermaking Materials, a cura di C. F. Baker. Fundamental Research Committee (FRC), Manchester, 1997. http://dx.doi.org/10.15376/frc.1997.2.1047.
Blamback, M., F. Hesselvik, B. Brodin, R. Maller e R. Gaffney. "COAGUIATION, FIBRINLYSIS AND KALLIKREIN ACTIVATION IN SEVERE INFECTION AND SEPSIS : RELATION TO OUTCOME". In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644695.
Jackson, Paul J. M., Khondaker Miraz Rahman e David E. Thurston. "Abstract 3696: Molecular dynamics simulations of C7/C7′-linked pyrrolobenzodiazepine (PBD) dimers". In Proceedings: AACR 106th Annual Meeting 2015; April 18-22, 2015; Philadelphia, PA. American Association for Cancer Research, 2015. http://dx.doi.org/10.1158/1538-7445.am2015-3696.
Premi, Sanjay, Silvia Wallisch, Camila Mano, Adam Weiner, Antonella Bacchiocchi, Kazumasa Wakamatsu, Etelvino Bechara, Ruth Halaban, Thierry Douki e Douglas E. Brash. "Abstract LB-104: Excited electrons in melanin induce cyclobutane dimers in the dark". In Proceedings: AACR 106th Annual Meeting 2015; April 18-22, 2015; Philadelphia, PA. American Association for Cancer Research, 2015. http://dx.doi.org/10.1158/1538-7445.am2015-lb-104.
Cotto Rios, Xiomaris M., Paul Agianian, Yang Wu e Evripidis Gavathiotis. "Abstract LB-A35: Discovery of a new kinase inhibitor targeting BRAF monomers and dimers". In Abstracts: AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; October 26-30, 2017; Philadelphia, PA. American Association for Cancer Research, 2018. http://dx.doi.org/10.1158/1535-7163.targ-17-lb-a35.
Foris, V., G. Kovacs, P. Douschan, A. Avian, F. Prüller, M. Herrmann e H. Olschewski. "D-Dimer Predicts Mortality in Patients with Suspected Pulmonary Hypertension". In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a3855.
Ishikawa, G., D. Chavez, M. L. Padilla, D. Yang, Y. Ge, S. L. Friedman e B. S. Ding. "D-Dimer Correlates with Development and Activity of Pulmonary Fibrosis". In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a7888.
Sun, Gege, Iris L. Wong, Jiahua Cui, Zhen Liu, Bill T. Chan e Larry M. Chow. "Abstract 3795: Investigate the mechanism of actions of flavonoid dimers in reversing doxorubicin resistance in breast cancer stem cells". In Proceedings: AACR Annual Meeting 2020; April 27-28, 2020 and June 22-24, 2020; Philadelphia, PA. American Association for Cancer Research, 2020. http://dx.doi.org/10.1158/1538-7445.am2020-3795.
Gadkari, Ketaki, Rutu Hemani, Urvi Kolhatkar, Gisella Campanelli, Qing Cai, Avinash Kumar e Anait S. Levenson. "Abstract 3: Does dimer resveratrol offer twice the benefits in prostate cancer". In Proceedings: AACR Annual Meeting 2020; April 27-28, 2020 and June 22-24, 2020; Philadelphia, PA. American Association for Cancer Research, 2020. http://dx.doi.org/10.1158/1538-7445.am2020-3.