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UID:69e0d3e94b5a5
DTSTAMP:20260416T081953
DTSTART:20111102T113000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20111102T130000
URL:https://murmitoyen.com/events/vanille/udem/detail/68528
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Conférence CRMAA avec le professeur Elias Vlieg (Nijmegen)
DESCRIPTION:Titre : Chiral Purification Using Crystal Growth and Grinding.C
 ette conférence sera prononcée par le professeur Elias Vlieg de l'inst
 itut pour les molécules et les matériaux de Radboud University Nijmegen 
 (Pays-Bas). Elle est commanditée par le Centre de recherche sur les mater
 iaux auto-assemblés (CRMAA) et sera donnée en anglais.Résumé : Under
 standing how single-handedness of biological molecules came about has been
  of interest since Pasteur first separated mirror-image crystals of tartar
 ic acid. It has recently been discovered that grinding a slurry of NaClO3 
 crystals can lead to a solid state of single chirality. While NaClO3 is in
 trinsically achiral\, we have found that the grinding method also works fo
 r genuine chiral molecules. The handedness of the final state can be contr
 olled in several ways\, including the use of additives\, the crystal size 
 distribution and the use of circularly polarized light. These results dem
 onstrate a possible route for the origin of biological homochirality\, but
  also provide a rapid method that can be used in the pharmaceutical indust
 ry to produce chirally pure products. Information supplémentaire 
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