QUALITY-CONTROL AND ALIGNMENT ELEMENT FOR ASSAY SUBSTRATES

摘要

A method for fabricating and assessing the quality of printing on substrates used for chemical or biological array testing, and method for ascertaining relative consistency of the deposit reproducibility is described. Generally, the method involves: providing a substrate, providing a solution mixture of a capture moiety and a colorant; depositing an amount of said solution mixture onto said substrate, monitoring the substrate such that the visible indicator colorant manifests in a co-extensive fashion as with the capture moiety on the substrate. In another aspect, the invention relates to a sensor or assay device comprising a physical complex of a number of capture agents and an amount of colorants adhere to least a part of a surface of a substrate.