Editing DNA microarray (section)

=== Fabrication ===
Microarrays can be manufactured in different ways, depending on the number of probes under examination, costs, customization requirements, and the type of scientific question being asked. Arrays from commercial vendors may have as few as 10 probes or as many as 5 million or more micrometre-scale probes.
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=== Surface engineering ===

The first step of DNA microarray fabrication involves [[surface engineering]] of a substrate in order to obtain desirable surface properties for the application of interest. Optimal surface properties are those which produce high signal to noise ratios for the DNA targets of interest. Generally, this involves maximizing the probe surface density and activity while minimizing the non-specific binding of the targets of interest.{{Citation needed|date=October 2008}} Methods of surface engineering vary depending on the platform material, design, and application.{{Citation needed|date=October 2008}} However micro-array system can be  modified.
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