Abstract:
The disclosed embodiments concern microfluidic cartridges for detecting biological reactions. In some embodiments, the microfluidic cartridges are configured to perform sequencing operations on a nucleic acid sample. In one aspect, a microfluidic cartridge includes a stack of fluidics layers defining channels and valves for processing the nucleic acid sample to be sequenced, and a solid state CMOS biosensor integrated in the stack. The biosensor has an active area configured to detect signals of biological reactions, wherein substantially all of the active area is available for reagent delivery and illumination during operation. In another aspect, a microfluidic cartridge includes: (a) a flow cell including a reaction site area encompassing one or more reaction sites; (b) fluidics channels for delivering reactants to and/or removing reactants from the reaction site area; (c) a biosensor having an active area configured to detect signals of biological reactions in the reaction site area. The reaction site area is proximal to the active area of the biosensor and the reaction site area spans substantially all of the active area of the biosensor. In some embodiments, the fluidics channels do not substantially overlap with the active area of the biosensor. Methods for manufacturing and operating the microfluidic cartridges are also disclosed.
Abstract:
FIG. 1 is a perspective view of a cartridge cover showing our new design; FIG. 2 is a top plan view of the design of FIG. 1; FIG. 3 is a bottom plan view of the design of FIG. 1; FIG. 4 is a left side elevational view of the design of FIG. 1; FIG. 5 is a right side elevational view of the design of FIG. 1; FIG. 6 is a front elevational view of the design of FIG. 1; FIG. 7 is a rear elevational view of the design of FIG. 1; FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 2; FIG. 9 is a perspective view of an alternate embodiment of the design shown in FIG. 1; FIG. 10 is a top plan view of the design of FIG. 9; FIG. 11 is a bottom plan view of the design of FIG. 9; FIG. 12 is a left side elevational view of the design of FIG. 9; FIG. 13 is a right side elevational view of the design of FIG. 9; FIG. 14 is a front elevational view of the design of FIG. 9; FIG. 15 is a rear elevational view of the design of FIG. 9; and, FIG. 16 is a cross-sectional view taken along line 16-16 in FIG. 10. The broken lines shown in the drawings illustrate portions of the cartridge cover that form no part of the claimed design.
Abstract:
FIG. 1 is a top plan view of the flow cell device comprising our new design; FIG. 2 is a bottom plan of the design of FIG. 1; FIG. 3 is a left side elevational view of the design of FIG. 1; FIG. 4 is a right side elevational view of the design of FIG. 1; FIG. 5 is a front elevational view of the design of FIG. 1; FIG. 6 is an enlarged rear elevational view of the design of FIG. 1; FIG. 7 is a right-rear perspective view of the design of FIG. 1; and, FIG. 8 is a left-rear perspective view of the design of FIG. 1. The broken lines shown in the drawings illustrate portions of the flow cell device that form no part of the claimed design. The dash-dot-dot broken lines depict the boundaries of the claim and form no part thereof.