| http://www.w3.org/ns/prov#value | - The coatings can be reagents such as buffers which are to be released into liquid sample material taken up into the device, or they can be specifically-reactive materials such as proteinaceous binding agents or enzymes: they can be confluent or continuous or divided into a pattern, e.g. of discrete portions, e.g. as a 2-dimensional array of patches.
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