Fig. 5From: CdSe/ZnS Quantum Dot-Labeled Lateral Flow Strips for Rapid and Quantitative Detection of Gastric Cancer Carbohydrate Antigen 72-4Detection of CA72-4 with QD-based ICTS. a Detection of purchased CA72-4 (5 IU/mL) by a UV laser. b Detection of CA72-4-negative and CA72-4-positive serum from patients by a UV laser. c Standard curve for detecting CA72-4 through data from a portable fluorescence immunoassay chip detectorBack to article page