Fig. 6From: The recent advancements in the early detection of cancer biomarkers by DNAzyme-assisted aptasensorsa Illustrative process of the colorimetric PGM-based DNAzyme aptasensor for PDGF-BB analyze; b Conceptual graphic of a colorimetric DNAzyme aptasensor for CEA detection. Reproduced with permission from [86] and [87]Back to article page