Read e-book online Amphiphiles at Interfaces PDF

By John Texter

ISBN-10: 3798510849

ISBN-13: 9783798510845

The topic of this quantity is restricted in that it addresses amphiphiles at liquid/air, liquid/liquid, and liquid/solid interfaces, with litte awareness paid to vapor/solid interfaces. This quantity will serve to summarize our present figuring out of interfacial constitution on the molecular point in those platforms, and the relation of this constitution to chemical and physicochemical phenomena.

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Relationship between interfacial activity and the mechanism of anesthetic action i0-I According to the Meyer-Overton hypothesis [14, 15], the anesthetic potency of anesthetic compounds is proportional to their solubilities in a non-polar phase, similar to the interior of the neuronal membrane. The remarkable accuracy of this relationship for all clinical and many other anesthetics led to its broader interpretation that anesthetics act inside the neuronal membrane [36]. Then, the Meyer-Overton hypothesis implies that the same concentration is required for all anesthetics to exert anesthetic action, irrespective of their molecular structure.

1 10 , 102 104 , it i 105 10 6 log(Koo0 10 2 . , . , . , . . . . . . , . . . * Relationship between interfacial activity and the mechanism of anesthetic action i0-I According to the Meyer-Overton hypothesis [14, 15], the anesthetic potency of anesthetic compounds is proportional to their solubilities in a non-polar phase, similar to the interior of the neuronal membrane. The remarkable accuracy of this relationship for all clinical and many other anesthetics led to its broader interpretation that anesthetics act inside the neuronal membrane [36].

5. 6 A. Almost identical peaks are observed in 9o-o of the remaining three alcohols. This indicates that the hydration of the hydroxyl head group at the interface does not depend on the length of the hydrocarbon chain, which is removed from the aqueous environment. The positions and shapes of the peaks in 9o w for molecules located at the interface and in the bulk aqueous solution [35] are very similar. The only difference is that the peak in the interfacial environment is smaller than the peak in bulk water by approximately 25%, due to the reduced accessibility of water molecules to the alcohol oxygen atom.

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Amphiphiles at Interfaces by John Texter


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