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A stochastic model for the breaking of molecular segments

Published online by Cambridge University Press:  14 July 2016

J. F. Bithell*
Affiliation:
Department of Biomathematics, University of Oxford

Extract

In many chemical and biochemical situations it is of interest to know the distribution that results from the breaking up of long molecules into shorter segments under certain hypotheses. For example, Montroll and Simha (1940) assumed that polymers consist of discrete units—monomers—connected by bonds all of which have an equal chance of breaking in the depolymerization process. Charlesby (1954) used a different approach to essentially the same model and in effect obtained differential equations for the moments of the ensuing distributions. More recently, Daniels (1967) has given a more thorough mathematical exposition, especially with regard to the effect of the initial length distribution, while Blatt (1967) has considered a model in which not all links are susceptible to breakage.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 

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References

Blatt, J. M. (1967) Enzymatic break-up of polypeptides as a stochastic process. J. Theoret. Biol. 17, 282303.Google Scholar
Charlesby, A. (1954) Molecular-weight changes in the degradation of long-chain polymers. Proc. Roy. Soc. A 224, 120128.Google Scholar
Chiang, C. L. (1966) On the expectation of the reciprocal of a random variable. Amer. Statist. 20, No. 4, 28.Google Scholar
Daniels, H. E. (1967) The distribution of molecular chain length subject to a constant probability of bond breakage. Unpublished note. Google Scholar
Feller, W. (1957) An Introduction to Probability Theory and its Applications. Vol. I. Wiley, New York.Google Scholar
Kendall, M. G. and Moran, P. A. P. (1963) Geometrical Probability. Griffin, London.Google Scholar
Montroll, E. W. and Simha, R. (1940) Theory of depolymerization of long chain molecules. J. Chem. Phys. 8, 721727.Google Scholar
Peacocke, A. R. and Pritchard, N. J. (1968) The ultrasonic degradation of biological macromolecules under conditions of stable cavitation. II. Degradation of deoxyribonucleic acid. Biopolymers. Biopolymers, 6, 605623.Google Scholar
Pritchard, N. J., Hughes, D. E. and Peacocke, A. R. (1966) The ultrasonic degradation of biological macromolecules under conditions of stable cavitation. I. Theory, methods and application to deoxyribonucleic acid. Biopolymers 4, 259273.Google Scholar