Pseudo‐Crown Ethers as Novel Scaffolds for the Development of Al³⁺‐Selective Fluorescent Probes

Abstract

Herein, we report the systematic evaluation of the BODIPY series functionalized with pseudo‐crown ethers against metal cations and assessment of their potential as novel off‐on fluorescent probes selective for aluminum(III) cations.

A Straightforward Strategy for the Preparation of Diverse BODIPY Functionalized with Polyamines and Polyoxyethylenes**

“…In our recent works we have reported several substitution strategies at the BODIPY core that ultimately allow photochemical and spectral tuning of dyes [11] . Amongst other things we have demonstrated that BODIPYs bearing pendant polyamines and amino alcohols are promising as viscosity sensors [11a,f] and Zn(II)‐selective probes for imaging in plants roots [11e] . In this work, we report an extended series of BODIPYs modified at the 8 position with polyamines and diethanolamines using a methylene spacer, which allows the exploration of the impact of the aza substituent on the dye fluorescence in the presence different cations.…”

A novel AIE fluorescent probe for the monitoring of aluminum ions in living cells and zebrafish

“…[13][14][15][16][17][18][19] By contrast, significant progress has been achieved in the development and application of fluorescent probes for the selective binding and identification of different metals, exhibiting unique properties including operational simplicity, low cost, high sensitivity and high selectivity. 20,21 Until now, some fluorescent probes for detecting Al 3+ have been reported based on internal charge transfer (ICT), [22][23][24] photoinduced electron transfer (PET), [25][26][27][28][29] chelation-enhanced fluorescence (CHEF), [30][31][32] and fluorescence resonance energy transfer (FRET) mechanisms. 33 However, most of these probes need to be applied in the organic/water mixture for the detection of Al 3+ ; the Al 3+ ion easily dissolves in water medium.…”

A Highly Selective Perylenediimide-Based Chemosensor: “Naked-Eye” Colorimetric and Fluorescent Turn-On Recognition for Al3+

“…Fluorescence techniques for detecting various ions have become an optimal choice due to their high sensitivity and selectivity (Suresh et al, 2018;Ye et al, 2019b;Bai et al, 2020;Wu et al, 2020;Zhao et al, 2020). In the past few years, various fluorescent chemosensors including coumarin, naphthalimide, pyrene, BODIPY, anthracene, and rhodamine were exploited for detection of Al 3+ (Samanta et al, 2014;Hossain et al, 2017;Kozlov et al, 2019;Prabhu et al, 2019;Roy et al, 2019;Li et al, 2020).…”