Fig. 7
From: The development progress of multi-array colourimetric sensors based on the M13 bacteriophage
(a–c Adapted from Ref. [101])
Multi-array colourimetric sensor based on the genetically engineered M13 bacteriophages. a Schematic diagram of colourimetric sensor array using genetically engineered M13 bacteriophages. b Analytic algorithm to classify an unknown substance. c Hierarchical cluster analysis dendrogram for eight types of medical chemicals using the colour distance (Ward.D linkage method)