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555 results about "Microfluidic channel" patented technology

Micro-fluidic chip and micro-fluidic chip system for single cell analysis and single cell analyzing method

The invention relates to a micro-fluidic chip and a micro-fluidic chip system for single cell analysis and a single cell analyzing method. The micro-fluidic chip for single cell analysis comprises a transparent top cover, a microfluid channel, a substrate with a micropore array and a bottom plate with a cavity body, which are sequentially connected from top to bottom in a sealing manner, wherein the transparent top cover is provided with an inflow hole and an outflow hole which are used for communicating the outside and the microfluid channel, the micropore array of the substrate is arranged below the microfluid channel and is communicated with the microfluid channel, each micropore is internally provided with an electrode, each electrode is provided with a cathode and an anode, each micropore can contain a single cell only, the bottom of each micropore is provided with a channel which is communicated with the cavity body of the bottom plate, and the cross section of the channel is smaller than the size of each single cell. With the adoption of the micro-fluidic chip, the micro-fluidic chip system and the single cell analyzing method, the capturing, identifying and disruption processes of each single cell are integrated on one micro-fluidic chip; as a corresponding operation method is provided, the content of each single cell is rapidly acquired and accurately analyzed.

Patterning of surfaces utilizing microfluidic stamps including three-dimensionally arrayed channel networks

The present invention describes improved microfluidic systems and procedures for fabricating improved microfluidic systems, which contain one or more levels of microfluidic channels. The methods for fabrication the systems disclosed can provide a convenient route to topologically complex and improved microfluidic systems. The microfluidic systems can include three-dimensionally arrayed networks of fluid flow paths therein including channels that cross over or under other channels of the network without physical intersection at the points of cross over. The microfluidic networks can be fabricated via replica molding processes utilizing mold masters including surfaces having topological features formed by photolithography. The present invention also involves microfluidic systems and methods for fabricating complex patterns of materials, such as biological materials and cells, on surfaces utilizing the microfluidic systems. Specifically, the invention provides microfluidic surface patterning systems and methods for fabricating complex, discontinuous patterns on surfaces that can incorporate or deposit multiple materials onto the surfaces. The present invention also provides improved microfluidic stamps or applicators for microcontact surface patterning, which are able to pattern onto a surface arbitrary two-dimensional patterns, and which are able to pattern multiple substances onto a surface without the need for multiple steps of registration or stamping during patterning and without the need to selectively “ink” different regions of the stamp with different materials.
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