Ratiometric fluorescence probe based on carbon dots and p-phenylenediamine-derived nanoparticles for the sensitive detection of manganese ions. - Hu, Anqi; Chen, Guoqing; Huang, Anlan; Li, Lei; Ma, Chaoqun; Yang, Taiqun; Gao, Hui; Gu, Jiao; Zhu, Chun; Shang, Yunpeng; Wu, Yamin (Microchimica Acta, 2024)