A novel fluorescent nanoprobe based on potassium permanganate-functionalized TiC QDs for the unique "turn-on" dual detection of Cr and Hg ions.

Titanium carbide quantum dots (TiC QDs) were synthesized by ammonia-assisted hydrothermal method. We also synthesized potassium permanganate (KMnO)-functionalized TiC QDs (Mn-QDs) by modifying TiC nanosheets with KMnO and then cutting the functional nanosheets into Mn-QDs. The TiC QDs and Mn-QDs were characterized by fluorescence spectroscopy (FL), Fourier transform infrared spectroscopy (FTIR), UV-vis spectrophotometry (UV-vis), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM).

One-pot label-free dual-aptasensor as a chemiluminescent tool kit simultaneously detect adenosine triphosphate and chloramphenicol in foods.

The chemiluminescence (CL) analysis based on label-free dual-aptasensor was developed for simultaneous detection of adenosine triphosphate (ATP) and chloramphenicol (CAP) in food. Magnetic microspheres and polystyrene microspheres used as separating and immobilizing carriers which immobilized the two different captured DNA, respectively. Then these carriers were put in the mixture of ATPs, CAPs, ATP-binding aptamers and CAP-binding aptamers to make one-pot label-free recognized interaction.