FINE-GRAINED FILLER SUBSTANCES FOR PHOTOMETRIC REACTION FILMS
First Claim
1. A diagnostic test element for detecting an analyte in a sample of a body fluid, more particularly in whole blood, comprising at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one detectable optical change in the presence of the analyte, wherein the test field has at least one detection layer comprising the detection reagent, wherein the detection layer comprises particles, wherein at least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers, wherein the test field has a loading side for applying the sample and a detection side for detecting an optical change in the detection reagent, wherein the test field further has at least one partition layer, wherein the partition layer is arranged on a side of the detection layer facing the loading side, wherein the partition layer comprises at least one pigment.
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Abstract
There is proposed a diagnostic test element for detecting an analyte in a sample of a body fluid, more particularly in whole blood. The diagnostic test element comprises at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one detectable change in the presence of the analyte, more particularly an optical change. The test field has at least one detection layer which comprises the detection reagent and which comprises particles. At least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers.
63 Citations
32 Claims
- 1. A diagnostic test element for detecting an analyte in a sample of a body fluid, more particularly in whole blood, comprising at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one detectable optical change in the presence of the analyte, wherein the test field has at least one detection layer comprising the detection reagent, wherein the detection layer comprises particles, wherein at least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers, wherein the test field has a loading side for applying the sample and a detection side for detecting an optical change in the detection reagent, wherein the test field further has at least one partition layer, wherein the partition layer is arranged on a side of the detection layer facing the loading side, wherein the partition layer comprises at least one pigment.
- 21. A process for producing a diagnostic test element for detecting an analyte in a sample of a body fluid, wherein the diagnostic test element comprises at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one change in the presence of the analyte, wherein the test field has at least one detection layer comprising the detection reagent, wherein the detection layer is generated such that the detection layer comprises particles, wherein at least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers, wherein the test field has a loading side for applying the sample and a detection side for detecting a change in the detection reagent, wherein the test field further has at least one partition layer, wherein the partition layer is arranged on a side of the detection layer facing the loading side, wherein the partition layer comprises at least one pigment.
- 30. A process for detecting an analyte in a sample of a body fluid such as whole blood, wherein the sample having a volume of less than 2 microliters can be applied to a diagnostic test element to detect the analyte in the sample, the diagnostic test element comprising at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one detectable change in the presence of the analyte, wherein the test field has at least one detection layer comprising the detection reagent, wherein the detection layer comprises particles, wherein at least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers, wherein the test field has a loading side for applying the sample and a detection side for detecting a change in the detection reagent, wherein the test field further has at least one partition layer, wherein the partition layer is arranged on a side of the detection layer facing the loading side, wherein the partition layer comprises at least one pigment.
Specification