Whitaker, Richard George (1989) The electrochemistry of redox enzymes. PhD thesis, University of Warwick.

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Abstract

The work presented in this thesis is of two types. Firstly methods for the
electrochemical immobilisation of redox enzymes in organic polymers are described.
The electrochemical monitoring of the immobilised enzyme reaction by detection of
one of the enzyme's products is discussed, and the results obtained for such a system
under a variety of experimental conditions are presented.
A good understanding of the way in which such a system operates' was
obtained by using a specially developed kinetic model., This model is explained
fully in the theory chapter of this thesis.
A variety of organic polymers were used in the electrochemical
immobilisation process, with varying degrees of success. The flexibility of this
approach is demonstrated by the use of a variety of immobilisation matrices and also
by the development of bienzyme and bilayer devices.
The final experimental chapter presents work on the covalent modification of
redox enzymes with a variety of, redox centres based. on ferrocene. Although
attempts to electrochemically immobilise a modified enzyme were not successful,
some interesting information about the kinetic behaviour and stability of a series Of
modified enzymes was obtained.
An indication of possible work forming an extension to this thesis is given in
the final part of this thesis. The electrochemical immobilisation techniques and the
procedure for covalently modifying, enzymes using electroactive, groups are
relatively recent ideas. Much work remains to be done before a better understanding
of these systems is gained.

Item Type:	Thesis or Dissertation (PhD)
Subjects:	Q Science > QD Chemistry Q Science > QP Physiology
Library of Congress Subject Headings (LCSH):	Enzymes -- Analysis, Immobilized enzymes, Electrochemistry
Official Date:	May 1989
Dates:	Date Event May 1989 Submitted
Institution:	University of Warwick
Theses Department:	Department of Chemistry
Thesis Type:	PhD
Publication Status:	Unpublished
Supervisor(s)/Advisor:	Bartlett, Philip N. (Philip Nigel), 1956-
Sponsors:	Genetics International
Extent:	xv, 281 leaves
Language:	eng

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