Monday, October 19, 2009

Types of Array

Spotted DNA array

Developed by Pat Browns Lab at Stanford
Usually has to make your own.
Relatively cheap
Flexible( can spot anything you want)
Less accurate in extreme of range
Cheap so that can repeat experiments many times.
Highly variable spot deposition.

Affymetrix or gene chips

Limited types
Expensive
Dynamics range may be slightly better in results.
Fewer repeated experiments
More uniform DNA testing

Ink-jet/Bubble Jet Microarrays

Deposition of cDNA/oligos
Highly uniform spots
In situ synthesis
Building 25-60 mer oligos directly on arrays
Flexible
Good for protyping

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