| 摘要 |
The present invention relates to a method for cross-linking polypeptide molecules, comprising the step of combining a cross-linking agent and polypeptide molecules in solution under conditions suitable for a cross-linking reaction to occur and to a preparation comprising cross-linked polypeptide molecules obtainable by said method. The present invention further relates to cross-linked polypeptide molecules, wherein said polypeptide molecules are cross-linked by essentially unbranched cross-linking groups comprising at least 40 contiguous atoms. Moreover, the present invention relates to a test chemistry matrix comprising a redox cofactor, an agent capable of eliciting a change in at least one measurable property of an indicator reagent in the presence of redox equivalents, and an indicator reagent, wherein said chemistry matrix further comprises a preparation of cross-linked polypeptide molecules obtainable by the method according to the present invention and/or cross-linked polypeptide molecules according to the present invention, as well as to a diagnostic test element comprising said test chemistry matrix. The present invention further relates to a preparation of cross-linked polypeptide molecules obtainable by the method according the present invention and/or cross-linked polypeptide molecules according to the present invention for use in the diagnosis of disease and for use in diagnosis of diabetes, as well as to a method for producing a test chemistry matrix. |
