Relevant bibliographies by topics / False chirality

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'False chirality'

Author: Grafiati
Published: 7 July 2024
Last updated: 31 July 2025

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Journal articles on the topic "False chirality"

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Vavilin, Maxim, and Ivan Fernandez-Corbaton. "Multidimensional measures of electromagnetic chirality and their conformal invariance." New Journal of Physics 24, no. 3 (2022): 033022. http://dx.doi.org/10.1088/1367-2630/ac57e8.

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Abstract Proper assignment of left- and right-handed labels to general chiral objects is known to be a theoretically unfeasible problem. Attempts to utilize a pseudoscalar function to distinguish enantiomers face two unavoidable difficulties: false chiral zeros and unhanded chiral states. In here, we demonstrate how both of these problems can be solved in the context of light–matter interactions. First, we introduce a two-dimensional quantity called complex electromagnetic chirality that solves the problem of false chiral zeros. Next, we define an infinite-dimensional pseudovector called chira
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Barron, Laurence D. "Cosmic Chirality both True and False." Chirality 24, no. 12 (2012): 957–58. http://dx.doi.org/10.1002/chir.22106.

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Barron, L. D. "True and false chirality and parity violation." Chemical Physics Letters 123, no. 5 (1986): 423–27. http://dx.doi.org/10.1016/0009-2614(86)80035-5.

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Barron, Laurence David. "True and false chirality and absolute enantioselection." Rendiconti Lincei 24, no. 3 (2013): 179–89. http://dx.doi.org/10.1007/s12210-013-0224-6.

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Barron, L. D. "True and false chirality and absolute asymmetric synthesis." Journal of the American Chemical Society 108, no. 18 (1986): 5539–42. http://dx.doi.org/10.1021/ja00278a029.

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Barron, Laurence D. "False Chirality, Absolute Enantioselection and CP Violation: Pierre Curie’s Legacy." Magnetochemistry 6, no. 1 (2020): 5. http://dx.doi.org/10.3390/magnetochemistry6010005.

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The 1884 suggestion of Pierre Curie (1859–1906) that the type of dissymmetry shown by collinear electric and magnetic fields may induce an enantiomeric excess, in a chemical reaction that would otherwise produce a racemic mixture, is explored in the context of fundamental symmetry arguments. Curie’s arrangement exhibits false chirality (time-noninvariant enantiomorphism), and so it may not induce absolute enantioselection (ae) in a process that has reached thermodynamic equilibrium, since it does not lift the degeneracy of chiral enantiomers. However, it may do so in far-from-equilibrium proce
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Barron, L. D. "False chirality, CP violation and the breakdown of microscopic reversibility in chiral molecular and elementary particle processes." Journal of Biological Physics 20, no. 1-4 (1995): 235–39. http://dx.doi.org/10.1007/bf00700441.

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Krabacher, Rachel, Steve Kim, Yen Ngo, Joseph Slocik, Christina Harsch, and Rajesh Naik. "Identification of Chiral-Specific Carbon Nanotube Binding Peptides Using a Modified Biopanning Method." Chemosensors 9, no. 9 (2021): 245. http://dx.doi.org/10.3390/chemosensors9090245.

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Peptides can recognize and selectively bind to a wide variety of materials dependent on both their surface properties and the environment. Biopanning with phage or cell peptide display libraries can identify material-specific binding peptides. However, the limitations with sequence diversity of traditional bacteriophage (phage) display libraries and loss of unique phage clones during the amplification cycles results in a smaller pool of peptide sequences identified. False positive sequences tend to emerge during the biopanning process due to highly proliferating, yet nonspecific, phages. In or
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BROWER, RICHARD C., YUE SHEN, and CHUNG-I. TAN. "CHIRALLY EXTENDED QUANTUM CHROMODYNAMICS." International Journal of Modern Physics C 06, no. 05 (1995): 725–42. http://dx.doi.org/10.1142/s0129183195000599.

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We propose an extended Quantum Chromodynamics (XQCD) Lagrangian in which the fermions are coupled to elementary scalar fields through a Yukawa coupling which preserves chiral invariance. Our principle motivation is to find a new lattice formulation for QCD which avoids the source of critical slowing down usually encountered as the bare quark mass is tuned to the chiral limit. The phase diagram and the weak coupling limit for XQCD are studied. They suggest a conjecture that the continuum limit of XQCD is the same as the continuum limit of conventional lattice formulation of QCD. As examples of
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Sun, Chao, Xueyan Zhang, Yuyu Xie, Yunlong Zhou, and Xiaoqing Gao. "True and False Chirality in Chiral Magnetic Nanoparticles." Journal of Physical Chemistry Letters, April 24, 2024, 4679–85. http://dx.doi.org/10.1021/acs.jpclett.4c01016.

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Dissertations / Theses on the topic "False chirality"

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Tieriekhov, Kostiantyn. "Applications non-conventionnelles de champs magnétiques à séparation chirale et aux systèmes électrochimiques dynamiques." Electronic Thesis or Diss., Bordeaux, 2023. http://www.theses.fr/2023BORD0502.

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L’énantioséparation de précision est essentielle pour les industries pharmaceutiques et alimentaires. Les techniques conventionnelles de séparation chirale offrent un large éventail de méthodes, qui reposent toutes sur des sélecteurs chiraux - des phases stationnaires ou des molécules qui distinguent les énantiomères par une interaction stéréospécifique. Malgré le grand nombre de sélecteurs naturels et synthétiques actuellement utilisés, la demande croissante d’énantiopurité stimule la recherche de nouvelles méthodes polyvalentes.Le but de cette thèse est d'étudier des méthodes alternatives de
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Vieira, João Paulo Fernandes 1982. "Separação enantiomérica do marcador molecular fmoc-poac em fase estacionária normal e reversa." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266863.

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Orientador: Cesar Costapinto Santana<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-19T02:22:30Z (GMT). No. of bitstreams: 1 Vieira_JoaoPauloFernandes_M.pdf: 2071458 bytes, checksum: 4e3166090a9b86f0b92b425b128fb73f (MD5) Previous issue date: 2011<br>Resumo: A enantiosseparação de alguns compostos é um brilhante e interessante tópico de muitas áreas da química analítica, principalmente na farmacêutica e biomédica. Sabe-se que apesar dos enantiômeros apresentarem fórmulas e massa molecular iguais, quando ex
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Cardoso, Fabiano César. "Micelização: diagramas de fase e potencial químico (rede de Bethe e simulações computacionais)." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-24022014-143500/.

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Obtemos propriedades de um modelo de rede para soluções diluídas de polímeros anfifílicos pequenos a partir do estudo das isotermas de potencial químico. Os resultados obtidos na rede de Bethe e em simulações de Monte Carla são apresentados. Introduzimos os cálculos na rede de Bethe através da mistura simétrica e estendemos o tratamento para dímeros, trímeros e tetrâmeros. O tratamento analítico também é generalizado para copolímeros com grau de polimerização arbitrário. As isotermas de potencial químico apresentam laços típicos de uma separação de fase macroscópica, muito embora se trate de
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Sartor, João Paulo. "Separação cromatografica do farmaco rolipram utilizando fase estacionaria O, O'-bis [4-terc-butilbenzoil]-N, N'-dialil-L-tartardiamida." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266191.

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Orientador: Cesar Costapinto Santana<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-07T06:42:17Z (GMT). No. of bitstreams: 1 Sartor_JoaoPaulo_M.pdf: 1114989 bytes, checksum: a9fb0b877c769f86e9c6ed9edfffee27 (MD5) Previous issue date: 2006<br>Resumo: O rolipram é um fármaco que possui ação inibidora sobre uma enzima relacionada a processos inflamatórios e tem demonstrado atividade antidepressiva. Ele é comercializado na forma racêmica, isto é, na proporção 1:1 dos seus enantiômeros R e S. No entanto, testes
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Freitas, Alessandra Ferraiolo de. "Caracterização e aplicação da fase estacionaria quiral tris(3,5-dimetilfenilcarbamato) de amilose na separação preparativa dos enantiomeros do omeprazol." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267135.

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Orientadores: Cesar Costapinto Santana, Quezia Bezerra Cass<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-13T23:12:40Z (GMT). No. of bitstreams: 1 Freitas_AlessandraFerraiolode_D.pdf: 3156949 bytes, checksum: bbcb73e35f211a07f6b4ff3c0740867c (MD5) Previous issue date: 2009<br>Resumo: O objetivo deste trabalho foi a síntese, em larga escala, da fase estacionária quiral tris(3,5-dimetilfenilcarbamato) de amilose e posterior investigação desta na separação preparativa dos enantiômeros do omeprazol por cromatografi
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Moimare, Pierluigi. "Sintesi e caratterizzazione strutturale di derivati piperidinici e morfolinici chirali." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19197/.

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The topic of this thesis concerns the study of catalytic processes for the synthesis of chiral 3,4,5-trisubstituted piperidine and 2,6-disubstituted morpholine. Substrates possessing an α,β-unsaturated ester and a ketone moiety, able to undergo addition/cyclization cascade reactions with different pro-nucleophiles (thiophenols, acetone cyanohydrin and malononitrile), have been evaluated. Chiral and achiral systems for phase-transfer catalysis have been applied as catalysts. Moderate enantiomeric excesses have been obtained for the morpholinic products and good to excellent values for the piper
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Rosa, Paulo César Pires 1976. "Estudo da separação cromatografica dos enantiomeros do omeprazol em fase estacionaria quiral Kromasil CHI-TBB (0,0' - BIS[4-TERC-BUTILBENZOIL] -N,N'-DIALIL-L-TARTADIAMIDA)." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266154.

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Orientador: Cesar Costapinto Santana<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-04T05:30:38Z (GMT). No. of bitstreams: 1 Rosa_PauloCesarPires_M.pdf: 3974194 bytes, checksum: 1c2d85f684175c77a00725571c9e316c (MD5) Previous issue date: 2005<br>Resumo: O fármaco racêmico omeprazol tem sido utilizado no tratamento de doenças relacionadas à acidez gástrica e apresenta atividades diferentes entre os enantiômeros. O enantiômero S, conhecido como esomeprazol, tem maior atividade quanto à inibição da secreção g
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Silva, Junior Absolon Carvalho da. "Separação cromatográfica do O,P'-diclorodifenildicloroetano (mitotano) em fase estacionária quiral tris-3-cloro-4- metilfenilcarbamato de celulose e tris-3,5 dimetilfenilcarbamato de amilose." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266973.

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Orientador: Cesar Costapinto Santana<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-09-11T21:16:06Z (GMT). No. of bitstreams: 1 SilvaJunior_AbsolonCarvalhoda_M.pdf: 1195170 bytes, checksum: b6cb56c8b23987c514ae2eb904dc1b24 (MD5) Previous issue date: 2010<br>Resumo: Alguns dos agentes terapêuticos são formulados e comercializados na forma de misturas racêmicas. O fármaco mitotano (o, p'- diclorodifenildicloroetano) é um exemplo dessa mistura. Utilizado apenas para o tratamento do carcinoma adrenocortical. A mo
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Book chapters on the topic "False chirality"

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Barron, L. D. "False Chirality, CP Violation and the Breakdown of Microscopic Reversibility in Chiral Molecular and Elementary Particle Processes." In Chemical Evolution: Structure and Model of the First Cell. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0105-9_26.

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Conference papers on the topic "False chirality"

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Barron, Laurence D. "True and false chirality, CP violation, and the breakdown of microscopic reversibility in chiral molecular and elementary particle processes." In Physical orgin of homochirality in life. AIP, 1996. http://dx.doi.org/10.1063/1.51240.

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