A Facile Label-Free Colorimetric Assay for DNase I Activity Based on the Peroxidase-Like Activity of Functional Nucleic Acids.

DNase I plays a crucial role in fundamental biological processes, including gene expression, DNA repair, and apoptosis. Therefore, it is important to develop a simple and efficient method to detect DNase I activity. In this work, a colorimetric assay based on functional nucleic acid for sensitive DNase I detection was reported.