Detection of Al³⁺ and Fe³⁺ Ions with Phthalocyanine‐Merocyanine 540 Dye‐Based Fluorescence Resonance Energy Transfer

Abstract

In this study, a sensor system was designed to detect metal ions based on the fluorescence resonance energy transfer (FRET) process between free-phthalocyanine (PC) and merocyanine 540 (MC540). Following the determination of parameters and appropriate conditions for energy transfer, the sensor system was tested with different metal ions. The conclusion was that the system showed high selectivity to iron and aluminum ions. In this FRET system, limit of detection (LOD) values for metal ions were calculated as 437 nM for Al 3+ and 32.1 nM for Fe 3+. The system was able to detect iron and aluminum in very low concentrations. It also showed good selectivity for the two metal ions.

On‐Site Detection for Hazardous Materials in Chemical Accidents

“…Developments of novel synthetic molecular units for efficient detection of hazardous materials have been paid much attention to chemistry community. 1 Spectroscopic chemosensors have been reported for effective monitoring of heavy metals, [2][3][4] inorganic pollutants, 5 warfare agents, 6 pesticides, 7 and hydrogen peroxide (H 2 O 2 ). 8 Chemical accidents can be considered an inevitable consequence of rapid worldwide industrialization.…”