autocatalysis


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autocatalysis

 [aw″to-kah-tal´ĭ-sis]
an increase in the rate of a chemical reaction in which a product of the reaction itself hastens or intensifies the rate.

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis),
A reaction in which one or more of the products acts to catalyze the reaction; after beginning slowly, the rate of such a reaction rapidly increases. Compare: chain reaction.
Synonym(s): autoactivation

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis)
A reaction in which one or more of the products formed acts to catalyze the reaction; beginning slowly, the rate of such a reaction rapidly increases.
Compare: chain reaction
References in periodicals archive ?
To exemplify this, he develops a simple and empirically testable molecular model involving two morphodynamic processes, which are ubiquitously present in all organisms, namely the self-assembly of cellular membranes and the autocatalysis of organic compounds so essential to life and its ability to reproduce itself.
(D) Schematic illustration of an autocatalysis motif in which R is autocatalyzed to R*.
Once the polymer is hydrated, polymer autocatalysis ensues causing bulk hydrolysis, that is, complete polymer degradation and erosion (mass loss).
In the case of bulk degradation, the internal concentration of autocatalysis products produced an acidic gradient as the newly generated carboxyl end group formed during ester bond cleavage accumulated.
Thankfully, Niklas Luhmann paved the way to a new theoretical apparatus that brings the notion of autopoiesis into sociology and evades the problem of systemic autocatalysis; he came up with the notion that humans (psychic systems) are not in fact part of the social systems but of their environment.
Researchers have shown that for poly(lactic acid), pseudo-first-order kinetics are a good approximation for hydrolysis catalyzed by an external strong acid but are insufficient for modeling autocatalysis [75].
To make a metabolome, non-equilibrium chemistry requires the informatic loop to lead to network autocatalysis.
One recent theory in complexity science, known as autocatalysis, shapes the very structure of this ambitious book and defines the relationships among its many characters.
In this model, explanations employ both positive and negative feedback loops and autocatalysis (the speeding up of a reaction by a catalyst that is a product of the reaction).
Autocatalysis: At least one of the components is causally influenced by another component, resulting in its own increase.
In this context, the initial peculiarities of the matterenergy exchange in probionts (branching and crossing of biochemical reactions, continuous inner fluctuations, the cooperative behaviour of molecules, etc.) make a basis for the formation of the proper biological metabolism, including the autocatalysis, cyclic chemical processes, and feedback loops (3rd DUP).
Characterized by: goals, positive and negative feedback, autocatalysis, emergent properties and surprise.