Table 1.

Solid microarray supports.

	Derivatized Glass	Filter/Membrane	Gel Pad/Agarose Film	Porous Silicon
Advantages	Cheap	Low cost	High sample capacity	High sample capacity
	Compatible with most micro-arrayers	Reusable		Spot homogeneity
				Low unspecific binding
Disadvantages	Non-uniform spots (Coffee ring effect)	Limit of spot density	Expensive	Laborious procedures
			Laborious procedures