Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications

The design and development of an aptamer–gold nanoparticle colorimetric assay for the detection of small molecules for in-the-field applications was examined. Additionally, a smart-device colorimetric application (app) was validated and long-term storage of the assay was established for use in the field.