Open access
Sep 2026
A target-responsive and signal-amplified DNA hydrogel biosensor for visual and quantitative detection of aflatoxin B1
Aflatoxin B1 (AFB1) poses a severe threat to food safety due to its potent carcinogenicity. To address the need for rapid and on-site detection, this study developed a colorimetric biosensor based on an AFB1-responsive DNA aptamercross-linked sodium alginate hydrogel. Gold nanoparticles (AuNPs) were encapsulated within...
Hao-Jie Du, Hao-Yue Liu, Yong-Shuai Li et al.
· Journal of Food and Drug Ana... · 0 citations