Review of current developments in rhodamine derivatives-based photoresponsive chemosensors for ion detection.

Photophysical study of Fluorescent Zn (II) Sensor. [Display omitted] • Fluorescence study of the rhodamine-quinoline type of Al3+sensor. • Absorption spectra of rhodamine-based fluorescent Al3+ chemosensor. • Bioimaging study of FRET-based chromium(III) sensor. • HOMO-LUMO structures of rhodamine-based colorimetric Cu(II) sensors. • Fluorescence emission study of rhodamine-based Fe3+chemosensor. • Live cell imaging of Rhodamine-based Hg2+ chemosensor. Rhodamine-based photoresponsive sensors have emerged as a focal point in the realm of chemical sensing, garnering substantial attention owing to their exceptional sensitivity, straightforward implementation, and real-time detection capabilities across diverse analytes. Within this class, a notable substituent stands out for its well-established reputation, characterized by its electron-donating prowess and customizable coordination cavity, resulting in a heightened sensitivity towards various metal ions. The comprehensive examination of these sensors in the review centers on key parameters such as the detection target, detection limit, detection solution system, and detection method. Notably, the inclusion of an array of metal ions in the discussion contributes to the versatility of these sensors. To enhance the readability and applicability of the review, a detailed exploration of the indirect sensing strategy is presented, showcasing its efficacy in achieving sensitive detection, especially for anions and other species. This strategic approach not only broadens the scope of application but also underscores the versatility of rhodamine-based sensors, making this review a valuable resource for researchers and practitioners in the field of chemical sensing. [ABSTRACT FROM AUTHOR]