Immobilized proteins
First Claim
1. An insoluble composite comprising a microporous member having at least a pair of opposed surfaces and a predetermined thickness, said microporous member comprising a polymeric resinous binder having finely divided filler particles dispersed throughout said binder and a network of substantially interconnected pores formed therein, said pores being formed within said resinous binder, between said filler particles and said resinous binder, and between neighboring filler particles, said dispersed filler particles being present in said microporous member in an amount by weight of at least about 25%, the size distribution of said pores varying non-uniformly across each of said surfaces and across said predetermined thickness through the range of about 0.01 micron to about 100 microns as determined porosimetrically by the Mercury Intrusion Method, and a proteinaceous substance bound to at least some of said filler particles dispersed throughout said binder, said microporous member being previous to the flow of a fluid through at least one of said surfaces wherein at least some of said filler particles to which said proteinaceous substance is bound is adapted to come into contact with such fluid.
2 Assignments
0 Petitions
Accused Products
Abstract
Proteins such as enzymes are immobilized on a microporous member comprising a binder or matrix and finely divided filler particles dispersed throughout the binder. The proteins are coupled to the filler particles, and the microporous member has a relatively large surface area and a large number of available protein coupling sites. Enzymes coupled to the microporous member have a relatively high reaction efficiency when used to act on a substrate.
70 Citations
19 Claims
- 1. An insoluble composite comprising a microporous member having at least a pair of opposed surfaces and a predetermined thickness, said microporous member comprising a polymeric resinous binder having finely divided filler particles dispersed throughout said binder and a network of substantially interconnected pores formed therein, said pores being formed within said resinous binder, between said filler particles and said resinous binder, and between neighboring filler particles, said dispersed filler particles being present in said microporous member in an amount by weight of at least about 25%, the size distribution of said pores varying non-uniformly across each of said surfaces and across said predetermined thickness through the range of about 0.01 micron to about 100 microns as determined porosimetrically by the Mercury Intrusion Method, and a proteinaceous substance bound to at least some of said filler particles dispersed throughout said binder, said microporous member being previous to the flow of a fluid through at least one of said surfaces wherein at least some of said filler particles to which said proteinaceous substance is bound is adapted to come into contact with such fluid.
- 15. The method of carrying out a chemical process comprising the steps of reacting a substrate by placing the substrate in contact with an insoluble microporous member having a proteinaceous substance which reacts with said substrate bonded thereto, and recovering a product of the reaction, said insoluble microporous member having at least a pair of opposed surfaces and a predetermined thickness, said microporous member comprising a polymeric resinous binder having finely divided filler particles dispersed throughout said binder and a network of substantially interconnected pores formed therein, said pores being formed within said resinous binder, between said filler particles and said resinous binder, and between neighboring filler particles, said dispersed filler particles being present in said microporous member in an amount by weight of at least about 25%, the size distribution of said pores varying non-uniformly across each of said surfaces and across said predetermined thickness through the range of about 0.01 micron to about 100 microns as determined porosimetrically by the Mercury Intrusion Method, and a proteinaceous substance bound to at least some of said filler particles dispersed throughout said binder, said microporous member being pervious to the flow of said substrate through at least one of said surfaces.
Specification