Difference between revisions of "Team:BostonU HW/Isolation"

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Cell lysis is a commonly used protocol in synthetic biology. It can be performed through a variety of different methods, however we had focused on chemical cellular lysis. Cell Lysis is used to extract and isolate DNA from a specific type of cell. This is an extremely important step in building genetic circuits in order to utilize specific coding regions in a cell's DNA. Chemical cell lysis involves introducing cells to a series of buffers in order to degrade the cell’s outer membrane and collect the DNA that is released.
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The ability to sort cells by type or physical properties is a valuable tool in many synthetic biology labs. Prior to analysis or in order to perform specialised protocols, creating homogenous cell suspensions from a mixture is necessary. In addition to sorting cells, the removal of cell fragments, activated magnetic particles or unwanted debris through sorting also makes up a key part of purification protocols.
 
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This microfluidic chip is designed to perform chemical cell lysis. Suspended cells and an lysing buffer would be mixed inside the cell. This mixture of buffer and cells would be then mixed with a neutralization buffer to prevent DNA degradation. The mixture would then move to the diamond chamber where the DNA binds magnetic particles. Lastly, an elution buffer would be input and to clean and release the DNA from the magnetic particles.
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This microfluidic chip design carries out cell sorting as a cell suspension is passed through it. Cells are sorted based on size and pushed to the periphery of the channel. These cells are then carried away from the main solution through the two periphery outputs, and the cell-free solution can be collected from the central output.
 
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Revision as of 03:55, 29 October 2017

BostonU_HW

Cell Sorting

Summary

The ability to sort cells by type or physical properties is a valuable tool in many synthetic biology labs. Prior to analysis or in order to perform specialised protocols, creating homogenous cell suspensions from a mixture is necessary. In addition to sorting cells, the removal of cell fragments, activated magnetic particles or unwanted debris through sorting also makes up a key part of purification protocols.
This microfluidic chip design carries out cell sorting as a cell suspension is passed through it. Cells are sorted based on size and pushed to the periphery of the channel. These cells are then carried away from the main solution through the two periphery outputs, and the cell-free solution can be collected from the central output.
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Testing

This following video shows a test of the chip using colored water. This is to show help explain the functionality of the chip. No biological material was inserted into this chip.