In the microarray platform, the surface substrate is critical to the result quality in terms of signal consistency and detection sensitivity. Traditional substrates such as glass and nitrocellulose often entail complicated preparation processes such as the activation and functionalization of the reaction spots and surface blocking to prevent nonspecific molecule adsorption. In addition, coffee-ring morphology of the spots is a common issue in the traditional substrates. To address these issues, we introduced a novel substrate based on fluorinated ethylene propylene (FEP) membrane for microarrays.
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