document: to analyze multiple biomarkers in one patient’s sample; (2) we will develop a peroxidase-mimic nanomaterial with high colour development efficiency, high stability, and low cost to replace natural enzymes as a signal for colorimetric biosensing; and (3) we will design a custom smartphone app to read the analysis results of the biosensing cassettes to enable semiquantitative analysis, documentation, data sharing, and location of disease area distribution.