AAnalytica Chimica Acta3/20/2026Highly emitting red-CDs for extreme acidic pH monitoring, and multi-mode ratiometric detection of Ag+Zhuorong Fan·Xiaojuan Gong·Jixian Luo·Xiaojing Xu·Shengmei Song·Wenjuan Dong·Zimeng Lei·Wenting LiangRead at Analytica Chimica ActaTagsMolecular Sensors and Ion DetectionSpectroscopy