Microfluidic device for cell separation and uses thereof
First Claim
1. A method for manufacturing a device comprising:
- i. providing a first substrate;
ii. creating a pattern of obstacles on said first substrate, and iii. coating said pattern of obstacles with one or more binding moieties that selectively bind to one or more first cell types in a mixture of cells, wherein said first cell type is a fetal nucleated red blood cell.
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Abstract
The invention features methods for separating cells from a sample (e.g., separating fetal red blood cells from maternal blood). The method begins with the introduction of a sample including cells into one or more microfluidic channels. In one embodiment, the device includes at least two processing steps. For example, a mixture of cells is introduced into a microfluidic channel that selectively allows the passage of a desired type of cell, and the population of cells enriched in the desired type is then introduced into a second microfluidic channel that allows the passage of the desired cell to produce a population of cells further enriched in the desired type. The selection of cells is based on a property of the cells in the mixture, for example, size, shape, deformability, surface characteristics (e.g., cell surface receptors or antigens and membrane permeability), or intracellular properties (e.g., expression of a particular enzyme).
156 Citations
34 Claims
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1. A method for manufacturing a device comprising:
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i. providing a first substrate;
ii. creating a pattern of obstacles on said first substrate, and iii. coating said pattern of obstacles with one or more binding moieties that selectively bind to one or more first cell types in a mixture of cells, wherein said first cell type is a fetal nucleated red blood cell. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 31)
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2. A method for manufacturing a device comprising:
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i. providing a first substrate;
ii. creating a pattern of obstacles on said first substrate wherein said pattern is non-uniform, and iii. coating said pattern of obstacles with one or more binding moieties that selectively bind to one or more first cell types in a mixture of cells. - View Dependent Claims (28, 29, 30, 32)
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- 33. The method of claim 33 wherein said first region is in series with said second region.
Specification