Fluorescence, Phosphorescence, and Chemiluminescence

Siraj, Noureen; El‐Zahab, Bilal; Hamdan, Suzana; Karam, Tony E.; Haber, Louis H.; Li, Min; Fakayode, Sayo O.; Das, Susmita; Valle, Bertha C.; Strongin, Robert M.; Patonay, Gábor; Sintim, Herman O.; Baker, Gary A.; Powe, Aleeta M.; Lowry, Mark; Karolin, Jan; Geddes, Chris D.; Warner, Isiah M.

doi:10.1021/acs.analchem.5b04109

Cited by 99 publications

(66 citation statements)

References 277 publications

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“…Besides general nanomaterial properties, they also have high electron density, dielectric properties, catalytic properties and very good adsorption characteristics. 10,11 In particular, AuNPs can combine with a variety of biological macromolecules without affecting their biological activity and are oen used as carriers or markers in biochemical analysis. [12][13][14] AuNP labelling technologies are one of the most advanced marking techniques.…”

Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

et al. 2018

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“…Chemosensing is one of the most important sensing techniques used for the detection of environmental and biological analytes, because of cost‐effectiveness, easy handling, high selectivity and sensitivity . Most commonly, fluorimetry is used for the detection purpose .…”

Section: Introductionmentioning

confidence: 99%

Development of a Water‐Dispersible SBA‐15‐Benzothiazole‐Derived Fluorescence Nanosensor by Physisorption and Its Use in Organic‐Solvent‐Free Detection of Perborate and Hydrazine

et al. 2018

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We have synthesized a water dispersible SBA‐15 based sensing material (nanosensor 1) for the detection of perborate ions and hydrazine in water. The nanosensor was prepared by simple physisorption of chemosensing unit 2‐(benzo[d]thiazol‐2‐yl)phenyl acetate (2) onto PEG‐stabilized SBA‐15. The probe molecule undergoes spontaneous cleavage of acetate group in the presence of both perborate ions and hydrazine to produce corresponding phenol (3), which results in greenish blue fluorescence by excited state intra‐molecular proton transfer (ESIPT) mechanism. The limit of detection (LOD) for both analytes was observed in ppb level; 49.9 ppb for perborate ions and 8.0 ppb for hydrazine. Simple synthesis, effortless modification, high water dispersibility make this nanosensor very efficient for perborate ions and hydrazine. Finally, this is a demonstration of the physisorption strategy in building useful sensing materials which can be applied to any analyte based on the choice of a suitable chemosenors.

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“…Among the sensitive methods of characterization, emission techniques like fluorescence, phosphorescence, and chemiluminescence are interesting areas of research that is being pursued world wide . Fluorescent probes have the ability to exhibit different photophysical characteristics under different environments, which can be effectively made use of in rebinding studies in MIPs .…”

Section: Introductionmentioning

confidence: 99%

Probing cavity versus surface preference of fluorescent template molecules in molecularly imprinted polystyrene microspheres

Sonawane

Asha

2017

J. Polym. Sci. Part A: Polym. Chem.

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Functional polystyrene (PS) crosslinked microbeads were developed by dispersion polymerization as fluorescent molecularly imprinted polymers (MIPs) having cavities with specific recognition sites. The functional azobenzene molecule modified with pyridine was self‐assembled with Pyrenebutyric acid (template molecules), and introduced during the second stage of dispersion polymerization of polystyrene. The template molecule was removed from MIP by Soxhlet using acetonitrile as solvent. Non imprinted polymer (NIP) having no template was also synthesized for comparative study. Fluorescence spectroscopy could be used as a tool to derive insight into the location of the template molecules on the MIP or NIP. The template molecules were adsorbed on the surface of the NIPs during binding studies, which was evidenced from the pyrene excimeric emission observed at 440 nm. The template binding efficiency of the NIPs were much lower compared to MIPs. Pyrene emission from MIP upon rebinding showed typical monomeric emission in the 375–395 nm range, confirming its location in isolated cavities. In rebinding studies of the template molecules, the MIPs selectively took up the template for which the cavity was designed, which demonstrated their selectivity towards template molecules. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 1558–1565

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Fluorescence, Phosphorescence, and Chemiluminescence

Cited by 99 publications

References 277 publications

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

Electrochemiluminescence of gold nanoparticles and gold nanoparticle-labelled antibodies as co-reactants

Development of a Water‐Dispersible SBA‐15‐Benzothiazole‐Derived Fluorescence Nanosensor by Physisorption and Its Use in Organic‐Solvent‐Free Detection of Perborate and Hydrazine

Probing cavity versus surface preference of fluorescent template molecules in molecularly imprinted polystyrene microspheres

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