<p>The present invention refers to a detection method for analytes using the principle of black-and-white photography and to reagent kits for performing the method, furthermore applied this new technology to detect a biologically relevant sequence in the nanomolar range (femtomoles) in an application circumventing the necessity of a PCR. There are still numerous ways to optimize this methodology that is suitable for a large variety of applications in the genomic diagnostics and proteomics areas.</p>
