Ionic liquids based sustainable materials for versatile optoelectronic applications

Rahman, Ziaur; Das, Sudhir Kumar

doi:10.1016/b978-0-12-824545-3.00013-1

Cited by 1 publication

(1 citation statement)

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“…To date, NPs have shown great potential for bioimaging and fluorescent probe applications. The size, surface functionalities, and morphology of NPs can be tuned to fit specific task making them widely useful [ 19 ]. NPs have the added benefit of enhanced cellular uptake which was observed in previous studies due to enhance permeability and retention effect (EPR) of NPs.…”

Section: Introductionmentioning

confidence: 99%

FRET-based carbazole-fluorescein ionic nanoparticle for use as an effective bioimaging agent

Jalihal

Krehbiel

Macchi

et al. 2023

Biofunctional Materials

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Fӧrster resonance energy transfer (FRET)-based systems are widely applicable in many areas of interest. In this study, a novel FRET-based ionic material (IM) was synthesized by pairing carbazole imidazolium cation (CI + ) with fluorescein anion (Fl 2− ) through a simple ion-exchange method. The resulting IM ([CI] 2 [Fl]) was converted into an ionic nanoparticle (INP) in aqueous media for practical use for bioimaging application. The photophysical properties of the parent dyes, [CI] 2 [Fl], and INP were studied in detail. All FRET parameters were calculated in the synthesized material. [CI] 2 [Fl] exhibited a significant spectral overlap integral and an ideal theoretical FRET distance. The presence of the FRET mechanism was verified by the observed decrease in donor fluorescence lifetime and a moderate FRET efficiency in [CI] 2 [Fl]. The INP formed from [CI] 2 [Fl] was evaluated for use as a fluorescent pH probe and bioimaging agent. FRET efficiency of INP is calculated in a series of pH studies which indicates the highest efficiency at physiological pH. Whereas no FRET phenomenon is observed in highly acidic and basic conditions. The pH-dependent photophysical properties of [CI] 2 [Fl] are monitored and allow for the potential application as a fluorescent probe for the detection of acidic tissues in biological systems. The FRET-capable INP showed superior bioimaging capability in vitro as compared to the parent dye.

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Section: Introductionmentioning

confidence: 99%