Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or...
Reexamination Certificate
2007-05-08
2007-05-08
Yaen, Christopher H. (Department: 1643)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
C435S006120, C435S007100
Reexamination Certificate
active
10048194
ABSTRACT:
The present invention involves methods, systems, and devices for analyzing a biological material, such as a cellular or other specimen. The method includes placing the specimen on a substrate having different capture regions, such as contiguous layers, wherein the different capture regions of the substrate contain different identification molecules, and transferring components of the specimen through the capture regions under conditions that allow the components to interact with different identification molecules in the different regions of the substrate. The components of the specimen can be transferred through the different layers (or other regions) of the substrate by capillary action of a solution moving through the cellular specimen or by electrophoresis. The transfer of components of the specimen through the substrate may occur while maintaining a geometric correspondence to the specimen, such as the cytoarchitecture of a cellular specimen, for example by moving the components through parallel layers having positions that correspond to positions within the specimen. When the cellular architecture of the specimen is maintained, a correlation between the different identification molecules and the components of the cellular specimens may be made. The analysis can occur with one or more different discrete (for example cellular) specimens on a surface of the substrate. Examples of cellular specimens include, but are not limited to tissue sections, particularly tumor tissue sections. The cellular specimen can also include cultured cells or a cytology sample. Cytostat tissue sections cut slightly thicker than usual, that is about 25 to about 50 μm, improves the ability to detect molecules of moderate and low level abundance.
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Klarquist & Sparkman, LLP
Sang Hong
The United States of America as represented by the Secretary of
Yaen Christopher H.
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