Micro-pixelated fluid-assay structure with on-board addressable, pixel-specific functionalization
A digitally-addressable, pixelated, DNA fluid-assay, active-matrix micro-structure formed, utilizing low-temperature TFT and Si technology, on a substrate preferably made of glass or plastic, and including at least one pixel which is defined by (a) an addressable pixel site, (b) a sensor home structure disposed within that site for receiving and hosting a functionalized assay site possessing a DNA oligonucleotide probe, and (c) an addressable, pixel-site-specific, energy-field-producing functionalizer (preferably optical) operable to functionalize such a probe on the assay site. Each pixel may also include a pixel-integrated optical detector. Further disclosed are related methodology facets involving (1) the making of such a micro-structure (a) in a precursor form (without a functionalized probe), and thereafter (b) in a finalized/functionalized form (with such a probe), and (2) the ultimate use of a completed micro-structure in the performance of a DNA assay.
1. An active-matrix, thin-film-transistor-based, DNA fluid-assay micro-structure comprising
a substrate having a face,
plural pixels formed in common on said substrate's said face in the arrangement of a matrix, and
within, as an included part of, each pixel on said face,
(a) at least one initially non-functionalized, DNA oligonucleotide-probe-lacking, assay site, and (b), disposed on said face, laterally adjacent said site, (1) a thin-film energizing transistor, and (2) an energizable, light-field-creating functionalizer operatively connected to, and energizable by, said transistor, and whose created light field, when created via associated transistor energizing, is operable to functionalize the pixel by participating in the building, from a precursor condition of the pixel, of a DNA oligonucleotide probe on said at least one site.
2. The micro-structure of claim 1 , wherein said substrate is formed of low-temperature glass or plastic.