Determination of adenosine disodium triphosphate (ATP) using norfloxacin–Tb3+ as a fluorescence probe by spectrofluorimetry

Luminescent lanthanide complexes (LLCs) are versatile probes for the determination of a variety of analytes such as metal ions, anions, hydrogen peroxide, ATP, pH, or oxygen. Antenna chromophores have been introduced as ligands for sensitizing lanthanide emission. The ligand system or the lanthanide ion can act as receptors for reversible binding of analytes. Thus, the response of luminescence emission can occur via ligand or metal-centered processes, which will both be discussed. LLCs, particularly Eu 3+ and Tb 3+ complexes, have been incorporated in solid state matrices, e.g., polymer hydrogels or silica to obtain optical sensor layers. A selection of such sensitive materials will be outlined, including sensors for the analytically relevant parameters oxygen, pH, hydrogen peroxide, humidity, and temperature.

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“…Apart from the Eu 3+ complexes specified above, [58]. The same is observed in case of NADP [59], DNA [60], heparin [61], GTP, and GDP [62].…”

Section: Complexes With Non-chelating Ligandsmentioning

confidence: 55%

Luminescent Chemical and Physical Sensors Based on Lanthanide Complexes

Spangler

Schäferling

2010

Lanthanide Luminescence

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“…It has wide applications in clinical medicine, which is administered daily to patients with urinary, respiratory or cutaneous infections. Up to now, there have been many techniques for the determination of FQs derivative, such as spectrofluorometry [1][2][3], HPLC [4], electrochemical analysis [5], chemiluminescence (CL) [6][7][8] and electrogenerated chemiluminescence [9,10], applied in pharmaceutical formulations and biological fluids. Among these techniques, the CL method has the advantages of simple equipment, high sensitivity detection and producing low background signals for the emission of CL coming from the chemical reaction.…”

Section: Norfloxacinmentioning

confidence: 99%

Determination of norfloxacin using gold nanoparticles catalyzed cerium(IV)–sodium sulfite chemiluminescence

Bao

2009

Journal of Luminescence

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“…12 The specific strong fluorescence of lanthanides as a result of an efficient intra molecular energy transfer from the excited triplet state of the antenna ligand to the emitting electronic level of the lanthanide ion possesses luminescence characteristics of narrow spectral width, long luminescence lifetime, large Stock's shifts (> 200 nm) and µs-luminescence decay times. 13,14 Tb 3+ ions for their resonance energy levels overlap with ultraviolet light, often used as the fluorescence probes to determine several classes of organic compounds because of the high fluorescence quantum efficiency of their chelates. 13 There are many luminescence probes for the determination of DNA.…”

Section: Introductionmentioning

confidence: 99%