Chemistry: electrical and wave energy – Processes and products
Patent
1986-01-10
1987-04-07
Chapman, Terryence
Chemistry: electrical and wave energy
Processes and products
204290R, 204294, 429 43, 429213, 502101, C25B 302, C25B 1106, H01M 496
Patent
active
046558853
ABSTRACT:
In a bioelectrochemical process in which the electrons are transferred directly, without use of a mediator, such as a redox dye or cofactor, between an electrode and an electroactive biological material, such as an enzyme or a protein, in either direction, rapid electron transfer has previously been achieved between an electrode and the positively charged protein horse-heart cytochrome c by adding a surface-modifier such as 4,4'-bipyridyl or a derivative thereof.
It has now been found possible to promote electron transfer to either a positively or a negatively charged protein using the same surface-modifier for either job, namely a compound of formula ##STR1## wherein: the pyridine ring shown is substituted in the 2-, 3- or 4-position by the (methylene)hydrazinecarbothioamide group shown;
R.sup.1 represents hydrogen atom(s) or one or two methyl or ethyl groups in the 2-,3- or 4-position (when the said position is not substituted by the (methylene)hydrazinecarbothioamide group shown);
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Hill Hugh A. O.
Page David J.
Walton Nicholas J.
Whitford David
Chapman Terryence
National Research Development Corporation
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