Biologically active silver-coated proteins
First Claim
1. A composition-of-matter comprising a protein having a solvent-accessible surface and further having a biological activity and a metallic silver coating deposited over said surface and forming a silver-coated protein retaining said biological activity, wherein said protein has at least one oxidized reducing moiety attached to at least a portion of said surface, said reducing moiety being selected from the group consisting of hydrazine, hydrazide and imine, said oxidized reducing moiety being obtained upon reducing silver ions to form said metallic silver coating, said silver coating is in a form of a continuous metallic silver layer covering 0.1% to 60% of said surface, and wherein said protein is a hydrogen peroxide producing enzyme and said biological activity is a catalytic reaction activity.
1 Assignment
0 Petitions
Accused Products
Abstract
Silver-coated proteins, being dissolvable or suspendable in aqueous media and/or retaining a biological activity of the protein and a process for preparing same are disclosed. Further disclosed are modified proteins which have a reducing moiety attached to the surface thereof and a process for preparing same. The modified proteins can be utilized for obtaining the silver-coated proteins. Further disclosed are a pharmaceutical composition containing and a method of treating bacterial and fungal infections utilizing biologically active silver-coated hydrogen peroxide producing enzymes such as glucose oxidase. Further disclosed are conductive elements that comprise the silver-coated proteins disclosed herein and electronic circuits containing same. Further disclosed are electrodes having the silver-coated proteins deposited thereon and biosensor systems utilizing same for determining a level of an analyte in a liquid sample.
-
Citations
18 Claims
- 1. A composition-of-matter comprising a protein having a solvent-accessible surface and further having a biological activity and a metallic silver coating deposited over said surface and forming a silver-coated protein retaining said biological activity, wherein said protein has at least one oxidized reducing moiety attached to at least a portion of said surface, said reducing moiety being selected from the group consisting of hydrazine, hydrazide and imine, said oxidized reducing moiety being obtained upon reducing silver ions to form said metallic silver coating, said silver coating is in a form of a continuous metallic silver layer covering 0.1% to 60% of said surface, and wherein said protein is a hydrogen peroxide producing enzyme and said biological activity is a catalytic reaction activity.
Specification