How to design DNA chip?

[zmp]

May I know how to design the DNA chip? What are the basic parameter I have to consider? The DNA chip will be used in microfluidic chamber for cells analysis.

Thanks
zmp

[charlesfunkel]

Design of a DNA chip for detection of unknown genetically modified organisms (GMOs).

[zmp]

Detection for example cancerous cells. the chip is functionalism with know DNA. below is a short video link on how the DNA chip works.

http://www.sumanasinc.com/webcontent/animations/content/dnachips.html

The chip that I am using now is placed inside the PDMS chamber. I want to know how to design the DNA chip in order to save patient blood and have high output detection efficiency.

Regards

zmp