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Chirality (mathematics) - Wikipedia, the free encyclopedia
In geometry, a figure is chiral (and said to have chirality ) if it is not identical to its mirror image, or more particularly if it cannot be mapped to its mirror image by rotations and translati...
en.wikipedia.org/wiki/Chirality_(mathematics) |
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In a modified version of the classical Pasteur experiment, the enantiomorphous crystals were sorted out from a 1:1 mixture by the selective adhesion of cells to the (R,R) crystals. This stereospecificity results from molecular recognition between chiral components on the cell surface and the structured crystal surface.
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Similar to the induction of homochirality in achiral enantiomorphous monolayers by a chiral modifier, a small enantiomeric excess suffices to ensure that the entire molecular monolayer consists of domains having only one of two possible, non-superimposable, mirror-like lattice structures...
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Unbound MEDLINE | Amplification of chirality in two-dimensional enantiomorphous lattices. Journal article. Search by keyword, journal, author or by EBM filters diagnosis, treatment, prognosis or etiology. Evidence-based medicine search filters. ... Amplification of chirality in two-dimensional enantiomorphous lattices.
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We report the induction of homochirality in enantiomorphous layers of achiral succinic acid on a Cu(110) surface after doping with tartaric acid (TA) enantiomers. Succinic acid becomes chiral upon adsorption due to symmetry-breaking interactions with the Cu(110) surface. ... After thermally induced desorption of TA, ... J. Am. Chem.
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Monoclonal antibodies were selected after immunization with crystals of the tripeptide l-leucine-l-leucine-l-tyrosine. They interact with the tripeptide crystals, but do not interact with the tripeptide molecule, with other crystalline surfaces, or with adsorbed protein. ... Publication Date (Web): December 24, 2002...
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From the following article: ... Roman Fasel, Manfred Parschau & Karl-Heinz Ernst ... Nature 439, 449-452(26 January 2006)
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From the following article: ... Roman Fasel, Manfred Parschau & Karl-Heinz Ernst ... Enantiomorphous domains of racemic heptahelicene on Cu(111).
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Most of the articles and textbooks that show drawings of enantiomorphous crystals use an inadequate view to appreciate the fact that they are non-superimposable mirror images of one another.
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