Like it! Dr. Jiang Zike and Dr. Wang Tao from the luminsens research team guide Liu Shuting, Zhang Chuanzheng, Gu Yezhen, and Tan Hao from the School of Marine Technology and Science at Qilu University of Technology to conduct research on the project "Backgroundless pH Fluorescent Sensor Based on Upconversion Luminescence". Congratulations on winning the third prize in the 7th Shandong University Science and Technology Innovation Competition.