Chemistry: molecular biology and microbiology – Carrier-bound or immobilized enzyme or microbial cell;... – Enzyme or microbial cell is immobilized on or in an organic...
Reexamination Certificate
2000-01-06
2001-12-04
Tate, Christopher R. (Department: 1651)
Chemistry: molecular biology and microbiology
Carrier-bound or immobilized enzyme or microbial cell;...
Enzyme or microbial cell is immobilized on or in an organic...
C435S190000, C435S182000, C435S287900
Reexamination Certificate
active
06326178
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for synthesizing a composite of a conductive macromolecule and a protein component, in which a protein composite consisting of protein bonded to a macromolecular anion is used as the protein component.
2. Description of the Prior Art
A conductive macromolecule is a material on which a great interest is focused, at present day, due to its excellent physical properties inherent in a macromolecule. Such a conductive macromolecule is widely used in a variety of application fields, such as, for example, the preparation of a conductive plastic for preventing static electricity, the separation of compounds, a compound sensor, the delivery of a drug, a bio sensor, a diagnosis device, etc. Since being successively synthesized using a monomolecular anion as an additive, (see, Journal of chemical society and chemical communication 635 (1979)), this conductive macromolecule has been continually studied to achieve an improvement in the electrically conductive property and mechanical property. In order to improve the performance of its conductive macromolecule, although there was carried out a study on the chemical modification of the conductive macromolecule (see, Solid State Science 49 (1983)), this study did not provide a satisfactory result. In addition, even if an additive, such as a macromolecule anion, was used to adjust the physical property of the conductive macromolecular (see, Journal of Electroanalytical chemistry 224, 123 (1987), and Macromolecules 20, 1594 (1987)), it is disadvantageous in that the additive is limited in use to commercially produced macromolecules or a neutral macromolecule. Methods used up to now to synthesise a composite of the conductive macromolecule and a protein, include a method in which protein itself is used as an additive to the conductive macromolecule, and a method in which protein is composed with a monomer of the conductive macromolecule and the resulting composite is electrically polymerized. Such methods, however, have various problems, such as the limitation on usable kinds of protein, an insufficient efficiency on the synthesis of the conductive macromolecule-protein composite, the elution of protein into the conductive macromolecule-protein composite, etc.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to solve the above-mentioned problems, and to provide a method for synthesizing a composite of a conductive macromolecule and a protein component, in which a protein composite consisting of protein bonded to a macromolecular anion is used as the protein component (dopant), thereby improving the electrical conductivity of the conductive macromolecule, and imparting multifunctional properties to the conductive macromolecule.
REFERENCES:
patent: 4246351 (1981-01-01), Miyake et al.
patent: 0595800-B1 (1996-10-01), None
“Electrochemical Polymerization of Pyrrole”, Diaz Et Al., Journal of Chemical Society and Chemical Communication, pp. 635-636 (1979).
“Conducting Polymers Derived from Pyrrole”, Street Et Al., Solid State Science 49, Organic Molecular Aggregates, Springer-Verlag, New York (1983).
“Charge-Controllable Polypyrrole/Polyelectrolyte Composite Membranes: Part II Effect of Incorporated Anion Size on the Electrochemical Oxidation-Reduction Process”, Shimidzu Et Al., Journal of Electroanalytical Chemistry 224, (1987), pp. 123-135.
“Poly(N-Methylpyrrolylium) Poly(Styrenesulfonate). A Conductive, Electronically Switchable Cation Exchanger that Cathodically Binds and Anodically Releases Dopamine”, Miller Et Al., Macromolecules 1987, 20, 1594-1597.
Bae Yon-Han
Sung Won-Jun
Kwangju Institute of Science and Technology
Ross P.C. Sheridan
Srivastava Kailash C.
Tate Christopher R.
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