Rhodamine B and Rhodamine 6G Based Sensing of Copper Ions in Environmental and Biological Samples: Recent Progress

Abstract

Metal ions are widely distributed in living organisms and environmental systems, therefore, their monitoring is of great importance. These days, several sophisticated instrumental methods are being used for the detection of metal ions; however, rapid recognition of metal ions requires powerful tools namely, colorimetric and fluorescent chemosensors. In this review, Rhodamine B and Rhodamine 6G based colorimetric and fluorescent chemosensors have been discussed. These methods are simple, involve low cost, lower detection limit, high selectivity, and sensitivity, thereby used to monitor real-time metal ions. Several metal ions were detected with high selectivity and sensitivity with the aid of various derivatives of Rhodamine B and Rhodamine 6G fluorophores conjugated to different ligands. Besides that, this review is focused on the detection of Cu 2+ metal ions in recent years.

Selective Identification of Ferric Ions in Ecological and Biological Samples Using Rhodamine Chemosensors

“…In this review, we discussed Rhodamine B and Rhodamine 6G based Chemosensors for the selective detection of ferric ions in ecological and biological samples with their detection limits. Moreover, Rhodamine Chemosensors are also selective in the detection of Cupric (Cu 2+ ) ions [27].…”

Development of dual-channel fluorescent mesoporous SiO2 nanosphere-coated yttrium aluminum garnet composites for sensitive detection of latent fingerprints

“…[24][25][26] As a traditional organic dye, the poor photochemical stability, severe photobleaching, and photodegradation phenomena signicantly limit the application of rhodamine 6G (RhD-6) in uorescent labelling. 27 Silicon dioxide has good chemical inertness and optical properties, and encapsulating uorescent dyes within silicon dioxide cores to obtain functionalised SiO 2 uorophores solves the limitations of uorescent dyes. [28][29][30][31] The Stöber process allows precise control over the morphology and size of silica particles, enabling control over the uorophore by manipulating the particle size of silica.…”

Lead-Free Cs3Bi2Br9 Perovskite Quantum Dots for Detection of Heavy Metal Cu2+ Ions in Seawater

“…To address this issue, simple, fast, economic, and sensitive detection technologies and methods are needed. The utilization of fluorescent probes containing organic dyes and quantum dots (QDs) is a promising approach for detecting Cu 2+ because of their high sensitivity, selectivity, and specificity [15][16][17]. As inorganic probes, QDs have remarkable features of component-and size-adjustable photoluminescence and better photobleaching resistance, which fascinates the public [18][19][20].…”