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The origin of chirality in the molecules of life : a revision from awareness to the current theories and perspectives of this unsolved problem /
An interdisciplinary review of one of the great unsolved scientific mysteries - the origin of chirality in biomolecules.
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Cambridge, UK :
Royal Society of Chemistry,
©2008.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Chapter 1 Introduction and historical background. Chapter 2. Classification of the theories of the origin of biomolecular homochirality: Chance theories-- Amplification of tiny stochastic imbalances-- The racemic state-- Polymerizations above a critical chain length macromolecules-- Deterministic theories. Chapter 3. The concept of chirality: The basic symmetry operations-- The space inversion: the Parity operator:-- The time reversion: the Time reversal operator:-- The charge conjugation: the Charge conjugation operator:-- The failure of the experiments of L. Pasteur, P. Curie and others. Experiments in the absence of chirality. Experiments under the influence of false chirality or true chirality-- Absence of chiral field-- Experiments under false chiral influence-- Experiments under true chiral influence-- Expected effect of true and false chirality on molecules. Chapter 4. Chiral physical forces: The Weak Interaction and the Parity Violation-- Introduction. The Fundamental Interactions: Gravitational, weak interaction, electromagnetic and strong interaction-- The?-decay-- Parity violation-- Experimental confirmation of the parity violation in weak interactions-- The?+ and?- decays and the conservation of the symmetry operator-- The Principle of Invariance-- Unification of forces-- The Electroweak Theory-- The neutral ZA boson-- Quantification of the Parity violation in molecules:?Epv-- Experimental tests for parity-violating energies?Epv in molecules--?-Radiolysis-- Asymmetric photolysis and photosynthesis-- Circularly polarized light. Circular dichroism-- The magnetochiral effect-- Fluid Dynamics: Vortex motion. Chapter 5. Mechanisms of Amplification: Autocatalysis-- The Frank Model-- Theoretical Models derived from Frank's original model-- Autocatalytic amplification of the weak force-- Amplification of Chirality in chemical reactions-- Non-linear effects-- Asymmetric autocatalytic reactions-- Self-replication-- Amplification of the chirality by cooperative forces: growing polymers and supramolecular assembles-- Amplification of the chirality in polymerizations-- Amplification of the chirality in supramolecular assembles-- The Yamagata cumulative mechanism-- The Salam phase transition-- Amplification of scalemic compounds. Eutectic mixtures-- Solubility properties-- Sublimation proterties-- Amplification of chirality in serine octamers-- Homochiral preference and chiral amplification-- Chemistry of serine octamers-- Sublimation experiments. Chapter 6. Spontaneous Symmetry Breaking: Spontaneous Symmetry Breaking in Crystallizations. Chapter 7. Outside Earth: Meteorites and Comets: Meteorites-- Comets. Chapter 8. Other local deterministic theories: Chiral crystals and faces on crystals-- Quartz-- Calcite, gypsum, clay minerals and others-- Organic crystals: Glycine-- Two-dimensional chirality. Chapter 9. Intrinsic Assymetry of the Universe: The Arrow of Space-Time and the unequal occurrence of matter and antimatter. Amplification of the chirality in polymerizations-- Amplification of the chirality in supramolecular assembles-- The Yamagata cumulative mechanism-- The Salam phase transition-- Amplification of scalemic compounds. Eutectic mixtures-- Solubility properties-- Sublimation proterties-- Amplification of chirality in serine octamers-- Homochiral preference and chiral amplification-- Chemistry of serine octamers-- Sublimation experiments. Chapter 6. Spontaneous Symmetry Breaking: Spontaneous Symmetry Breaking in Crystallizations. Chapter 7. Outside Earth: Meteorites and Comets: Meteorites-- Comets. Chapter 8. Other local deterministic theories: Chiral crystals and faces on crystals-- Quartz-- Calcite, gypsum, clay minerals and others-- Organic crystals: Glycine-- Two-dimensional chirality. Chapter 9. Intrinsic Assymetry of the Universe: The Arrow of Space-Time and the unequal occurrence of matter and antimatter.