FRET based tri-color emissive rhodamine–pyrene conjugate as an Al3+ selective colorimetric and fluorescence sensor for living cell imaging

Abstract

A rhodamine-pyrene hybrid molecule acts as a colorimetric and fluorimetric sensor for Al(3+) through time dependent PET-CHEF and FRET processes associated with tri-color emission. Intracellular Al(3+) has been visualized through time dependent blue-green-red emission. The lowest limit of detection for Al(3+) is 0.02 μM.

Cell permeable fluorescent colorimetric Schiff base chemoreceptor for detecting F− in aqueous solvent

“…In view of above we have planned to furthermore investigate the ability of PMP in detection of intracellular fluoride [31,[57][58][59][60][61]. For this study two types of cells viz.…”

A ratiometric chemosensor for Al3+ based on naphthalene-quinoline conjugate with the resultant complex as secondary sensor for F−: Interpretation of molecular logic gates

“…Aluminum is one of the most abundant elements in earth's crust and is the most prevalent as metallic element [1][2][3][4]. It is not essential for any living system but we are exposed to it through many activities.…”

A novel ratiometric fluorescent probe for detection of Fe3+ by rhodamine–quinoline conjugate

“…In order to explain the phenomenon, Based on the above experiments and some reported fluorescent probes which shared some similarities to HL [40][41][42][43][44][45][46][47][48], the sensing mechanism is schematically illustrated in Scheme 2. …”