Results 21 to 30 of about 36,278 (230)

A High-Resolution Magic Angle Spinning NMR Study of the Enantiodiscrimination of 3,4-Methylenedioxymethamphetamine (MDMA) by an Immobilized Polysaccharide-Based Chiral Phase. [PDF]

PLoS ONE, 2016
This paper reports the investigation of the chiral interaction between 3,4-methylenedioxy-methamphetamine (MDMA) enantiomers and an immobilized polysaccharide-based chiral phase.
Juliana C Barreiro, Márcio W Paixão, Tiago C Lourenço, Quezia B Cass, Tiago Venâncio   +4 more
doaj   +1 more source

Chiral stationary phases and applications in gas chromatography

Chirality, 2022
AbstractChiral compounds are ubiquitous in nature and play a pivotal role in biochemical processes, in chiroptical materials and applications, and as chiral drugs. The analysis and determination of the enantiomeric ratio (er) of chiral compounds is of enormous scientific, industrial, and economic importance.
Gloria Betzenbichler, Laura Huber, Sabrina Kräh, Marie‐Louise K. Morkos, Alexander F. Siegle, Oliver Trapp   +5 more
openaire   +3 more sources

Luminescent Donor‐Acceptor Radical With Propeller Chirality: Bright and Photostable Red Circularly Polarized Luminescence and Whispering Gallery Mode Resonance

Angewandte Chemie, EarlyView.
A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura, Kenshiro Matsuda, Kosuke Anraku, Keiko Yamaoka, Taisuke Matsumoto, Fumitaka Ishiwari, Takeaki Zaima, Wataru Ota, Emiko Fujiwara, Tohru Sato, Yoshitaka Inoue, Soh Kushida, Yohei Yamamoto, Takuya Hosokai, Ken Albrecht   +14 more
wiley   +2 more sources

Electrodynamics of dual superconducting chiral medium [PDF]

, 2017
We study the electrodynamics of a chiral medium with electric and magnetic charges using the effective Maxwell-Chern-Simons theory extended to include the magnetic current.
Li, Yang, Tuchin, Kirill, Tuchin, Kirill
core   +5 more sources

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Influence of Temperature on the Enantioselectivity of Koga Tetraamines on Amylose Chiral Stationary Phases

Molecules, 2013
Enantioseparation is largely based on the formation of transitional complexes, the solvation species, the stationary phase configurations or the diastereomeric complexes formed by analytes and the chiral stationary phase.
Hong-Xun Guo, Steven Wu, Jingshun Sun
doaj   +1 more source

The Enantioselective Potential of NicoShell and TeicoShell Columns for Basic Pharmaceuticals and Forensic Drugs in Sub/Supercritical Fluid Chromatography

Molecules, 2023
The enantioselective potential of two macrocyclic glycopeptide-based chiral stationary phases for analysis of 28 structurally diverse biologically active compounds such as derivatives of pyrovalerone, ketamine, cathinone, and other representatives of ...
Denisa Folprechtová, Martin G. Schmid, Daniel W. Armstrong, Květa Kalíková   +3 more
doaj   +1 more source

Spontaneous Chiral-Symmetry Breaking in Three-Dimensional QED with a Chern--Simons Term

, 1995
In three-dimensional QED with a Chern--Simons term we study the phase structure associated with chiral-symmetry breaking in the framework of the Schwinger--Dyson equation.
A.P. Polychronakos, C. Vafa, C.D. Roberts, D. Atkinson, D. Atkinson, D. Atkinson, D. Atkinson, D. Atkinson, D. Nash, D.C. Curtis, D.C. Curtis, D.K. Hong, E. Dagotto, E. Dagotto, E. Fradkin, E.H. Simmons, F. Wilczek, G.W. Semenoff, H. Georgi, J. Cornwall, K. I. Kondo, K. I. Kondo, K. I. Kondo, K. I. Kondo, K. I. Kondo, K. I. Kondo, K. I. Kondo, K.-I. Kondo, L.D. Landau, M. Carena, M. Carena, M.R. Pennington, N. Dorey, P. Maris, R. Jackiw, R.D. Pisarski, R.W. Haymaker, S. Deser, S. Rao, S. Rao, T. Appelquist, T. Appelquist, T. Appelquist, T. Kugo, T. Matsuki, T.W. Appelquist, T.W. Appelquist, V. Azcoiti, V.A. Miransky, Y. Hoshino   +49 more
core   +2 more sources

Spiro‑Linked Double Tetraphenylethenes: Solid‐State Emission and Circularly Polarized Luminescence Imaging

Angewandte Chemie, EarlyView.
Two spirobisanthracene‐tetraphenylethene (SBA‐TPE) hybrid compounds are synthesized and their photophysical properties in the solid state reported. Circularly polarized luminescence in aggregates, films and dispersions is evaluated. Circularly polarized luminescence imaging is evaluated over crystals revealing discrimination of different types of ...
José L. Páez, Riccardo Rubino, Giulia Micolonghi, Marco Reale, Alice Sciortino, Victor Blanco, Angel Orte, Carlos M. Cruz   +7 more
wiley   +2 more sources

Effects of eight-quark interactions on the hadronic vacuum and mass spectra of light mesons [PDF]

, 2006
The combined effective low energy QCD Lagrangians of Nambu -- Jona-Lasinio (NJL) and 't Hooft are supplemented with eight-quark interactions. This work is a follow-up of recent findings, namely (i) the six quark flavour determinant 't Hooft term ...
A.A. Osipov, A.H. Blin, Achasov, Aitala, Alkofer, Alkofer, Arbuzov, Arnowitt, B. Hiller, Bali, Ball, Bernard, Bernard, Bernard, Bicudo, Bijnens, Bramon, Bramon, Coleman, Creutz, Dai, Del Debbio, DeWitt, DeWitt, Di Vecchia, Di Vecchia, Dmitrašinović, Dmitrašinović, Ebert, Eguchi, Feldmann, Feldmann, Feldmann, Gabadadze, Gasser, Gasser, Gell-Mann, Halperin, Hatsuda, Hiller, Iizuka, J. da Providência, Jaffe, Jamin, Janssen, Kawarabayashi, Keiser, Kikkawa, Klempt, Klevansky, Klimt, Locher, Naito, Nambu, Napsuciale, Nefediev, Okubo, Osipov, Osipov, Osipov, Osipov, Osipov, Osipov, Osipov, Pais, Reinhardt, Ritter, Rosenzweig, Schwinger, Shifman, Shuryak, Simonov, Simonov, Smilga, Takizawa, Tytgat, Vafa, Vaks, van Beveren, Vassilevich, Veneziano, Vogl, Vogl, Volkov, Volkov, Volkov, Volkov, Volkov, Weinberg, Weinstein, Witten, Witten, Witten, ’t Hooft, ’t Hooft   +94 more
core   +2 more sources