Engineering a Mn3O4/Eu MOF nanocomposite for ratiometric dual-mode sensing: mechanistic insight and ultrasensitive detection of nitrite in complex food matrices.
Rapid, sensitive, and reliable detection of nitrite remains a critical analytical challenge, given its importance for food safety and public health. Herein, we report a dual-mode, dual-ratiometric colorimetric-fluorescent sensor based on a Mn3O4/Eu-MOF hybrid for the ultrasensitive detection of nitrite. The Mn3O4 compo...