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Visual detection of tumor markers with accuracy and selectivity exhibits significant advantages for cancer early diagnosis due to its low-cost and simple analytical instruments. Herein, a highly photosensitive colorimetric immunoassay for carcino embryonie antigen (CEA, as a model) detection based on Cu2+ doped Ag-AgI nanocomposite was constructed. First, Cu2+ doped Ag-AgI nanocomposite (Cu2+/Ag-AgI)...
Chloramphenicol (CAP) is an antibiotic used for a variety of infections, however, it is banned for use in food-producing animals due to its hazards to humans blood. Herein, the highly sensitive photoresponsive colorimetric immunoassay was exploited based on AgI/TiO2 heterojunction nanomaterials. Firstly, chitosan modified AgI/TiO2 photocatalyst (CS-AgI/TiO2) was synthesized by deposition-precipitation...
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