Synthesis of fluorescent copper nanoparticles T(30)-base protection and its Mn2+ detection and temperature sensing.

In this manuscript, high fluorescent copper nanomaterials were synthesized based on T(30) base as template. The excitation wavelength of copper nanomaterials is 311 nm and the emission wavelength is 404 nm. The size range is 2–6 nm, the average size is about 4 nm. Divalent manganese ion can selectively quench the fluorescence of copper nanomaterials. Therefore, copper nanomaterials can be used to selectively detect manganese ions, the detection limit is 1 mM and the correlation coefficient is 0.9772. At the same time, When the temperature is between 25 °C and 55 °C, the linear relationship of fluorescence strength of copper nanoparticles is great, which shows great potential in the application of nano-thermometers. [ABSTRACT FROM AUTHOR]