Recent advances in H₂PO₄⁻ fluorescent sensors

Abstract

The recent advances in H2PO4− fluorescent sensors were thoroughly reviewed.

The Novel Poly(azomethine-urethane): Synthesis, Morphological Properties and Application as a Fluorescent Probe for Detection of Zn2+ Ions

“…1 H and 13 C-NMR spectra (Bruker AC FT-NMR spectrometer operating at 400 and 100.6 MHz, respectively) were recorded in deuterated DMSO-d 6 at 25°C. Tetramethylsilane (TMS) was used as internal standard.…”

“…Along with the various kinds of chemical sensors, fluorescent sensors have many advantages such as high sensitive, simple manipulation, facile visualization, low cost, ease of handling and real-time monitoring with fast response time due to photoluminescence (PL) measurements [1][2][3]. Because of these advantages, fluorescent sensors or probes for biologically active metal ions have been considerable interest in recent years and they are a lot of applications in the field of material, biological and environmental sciences [4,5].…”

“…Reaction was maintained for 6 h under argon atmosphere and, then mixture cooled at the room temperature and kept for 24 h (Scheme 1). P-SPAMEP was washed with MeOH (2 9 50 mL) and MeCN (2 9 50 mL) to remove the unreacted components and dried in a vacuum oven at 75°C for 24 h[20].Yield: 79 % 1. H-NMR (DMSO-d 6 , d pmp ): 9.72 (urethane-NH) 8.93 (-imine (-N=CH)), 7.98, 7.68, 7.46, 7.39, 7.34, 7.30, 7.25, 7.21, 6.68 and 6.49 (aromatic protons) 3.48 (-CH 2 -CH 3 ), 2.18 (-CH 3 ) and 1.24 (-CH 2 -CH 3 ), 13 C-NMR (DMSO-d 6 , d pmp ): 168.84 (urethane-C=O), 160.26 (imine (-N=CH)), 157.65, 154.24, 151.82, 138.58, 136.43, 134.78, 132.85, 130.7, 129.13, 127.84, 126.95, 124.87, 118.33, 117.97, 114.58, 113.20, 111.72, 108.14 (aromatic carbons), 47.63 (-CH 2 -CH 3 ), 18.16 (-CH 3 ), and 13.36 (-CH 2 -CH 3 ), SEC: Mn: 21,600 g mol -1 , Mw: 39,800 g mol -1 , PDI:1.843.…”

Luminescent probes for the bioimaging of small anionic species in vitro and in vivo

“…7,12,26,34 As the study of anion recognition and sensing has advanced supramolecular chemists have applied their fundamental knowledge to the detection of anions of biological significance. 14,21,[35][36][37][38][39][40][41][42][43][44][45][46] Indeed the rise of anion recognition as a field of study was in no small part due to the fact that the majority of intracellular operations involve anionic species. 47 A natural extension of such efforts is the detection or sensing of biologically relevant anions in a biologically relevant setting such as inside living cells or in living organisms.…”

Ferrocene-containing macrocyclic triazoles for the electrochemical sensing of dihydrogen phosphate anion

“…Among them, phosphates such as dihydrogen phosphate, phosphate or pyrophosphate, are of particular interest due to their key roles in fields of information processes, energy storage, and signal transduction [3,4]. Therefore, many man-made receptors that incorporate different anion binding sites (neutral N-H donors, cationic (N-H) + or (C-H) + donors) and different signaling subunits (optical or electrochemical units) have been developed to achieve a sensitive and selective detection of phosphates [5][6][7][8][9][10][11][12][13][14][15][16][17].…”