A new pyrene-based aggregation induced ratiometric emission probe for selective detections of trivalent metal ions and its living cell application
| Autor: | Ravinder Singh, Putikam Raghunath, Epperla Chandra Prakash, Muthaiah Shellaiah, Hong-Cheu Lin, Huan-Cheng Chang, Ming-Chang Lin, Ashutosh S. Singh |
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| Rok vydání: | 2015 |
| Předmět: |
Schiff base
Photoluminescence Metal ions in aqueous solution Inorganic chemistry Metals and Alloys Living cell Condensed Matter Physics Photochemistry Excimer Fluorescence Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Amide Materials Chemistry Pyrene Electrical and Electronic Engineering Instrumentation |
| Zdroj: | Sensors and Actuators B: Chemical. 207:338-345 |
| ISSN: | 0925-4005 |
| Popis: | We synthesize a newly designed pyrene-based fluorescent probe FBP containing a Schiff base and amide linkage as a receptor, which demonstrates selective UV–vis and fluorometric detections of trivalent metal ions in various semi-aqueous solution conditions. Interestingly, by increasing water contents the aggregation induced ratiometric emissions (AIREs) of photoluminescence in FBP solutions (in DMSO/H2O) are enhanced from blue to green due to the excimer formation of the aggregates in water. In addition, the enhanced aggregated ratiometric green fluorescence behaviors of FBP in the presence of trivalent metal ions (Al3+, Fe3+, and Cr3+) are observed in semi-aqueous solutions as well as the solid state, which is well utilized to detect trivalent metal ions in living cells. Further verification of the probe detections, their interactions toward trivalent metal ions are well characterized by the time-resolved photoluminescence (TRPL) of spectroscopic responses as well as theoretical calculations. Therefore, we believe the application of such a new AIRE-based approach is first reported among Schiff base and pyrene-based fluorescent chemo- and bio-sensors. |
| Databáze: | OpenAIRE |
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