Amide Functionalized Ionic Liquid as Facile Fluorescent Probe for Detection of Nitrophenolic Compounds

Abstract

Detection of nitrophenolic compounds has great importance concerning to its environmental and health hazards. Herein, we are exploring a simple, thermally stable amide functionalized task specific ionic liquid (TSIL), 3-(2-amino-2-oxoethyl)-1-methylimidazolium chloride, [AmoMIM] [Cl] as an effective fluorescent probe for detection of water soluble nitrophenolic compounds viz. picric acid (PA) and p-nitrophenol (NP). The proposed method provides a straightforward detection proce-dure anchored in significant quenching of fluorescence of TSIL by nitrophenols in aqueous medium. Under the optimized conditions the probe offers good linear relationship within the studied detection range with limits of detection (LOD) found to be 0.43 and 0.38 mg mL À1 for PA and NP, respectively. The plausible static fluorescence quenching mechanism accomplished with ground state complex formation is also discussed.[a] S.

Scalable Synthesis of ZrO2 Nanoparticles through Imidazolic Precursor and Evaluation of its Energy Storage Performance

“…The EIS spectroscopy indicates that very lowest depressed semicircle is observed for KOH electrolyte which evidenced for highest specific capacitance. It also indicates that the contact resistance of KOH electrolyte is minimal which possess fast charge transfer [40] . The Nyquist plot also indicated that ZrO 2 nanoparticles derived from imidazole‐based organic precursor have a better tendency towards the supercapacitor application with better conductivity.…”

Salt‐Induced Microstructural Transitions in Aqueous Dispersions of Ionic‐Liquids‐Based Surfactants

“…In order to further fine‐tune the properties of the ILBSs, recently a new concept of incorporating various functionalities such as hydroxyl, vinyl, ester, amine, ether or amide in the structure of ILBSs has been materialized ,. It is reported that incorporating functionality influences the interfacial and micellar properties significantly.…”

“…It is reported that incorporating functionality influences the interfacial and micellar properties significantly. For example, ester or amide functionalized ILBSs with imidazolium, pyridinium or morpholinium cations exhibit better surface activity than the homologous traditional cationic surfactants and non‐functionalized ILBSs ,. Recently, we reported the improved interfacial and micellar properties of the vinylfunctionalized ILBSs compared to their saturated analogous ILBS and conventional surfactant .…”

A near-infrared fluorescent nanoprobe for senescence-associated β-galactosidase sensing in living cells

“…This phenomenon might be attributed to the enhanced charge transfer between SPN-NH 2 and p -NP due to the increased number of quenchers surrounding the probe. 16 To establish the quantitative relationship between the probe's FL intensity and β-gal concentration, the FL variation as a function of β-gal level was recorded. Fig.…”

“…14,15 The nitro group of p-NP is known as a highly electron-deficient species and hence it could serve as a good electron acceptor in charge transfer systems. 16 In contrast, the amino group-modified SPN-NH 2 can play the role of an electron donor. Thus, we presumed that the FL of SPN-NH 2 might be effectively quenched by p-NP.…”