Method for determination of fluoroquinolones based on the plasmonic interaction between their fluorescent terbium complexes and silver nanoparticles

Kamruzzaman, Mohammad; Alam, Al-Mahmnur; Lee, Sang Hak; Suh, Yeoun Suk; Kim, Young Ho; Kim, Gyu Man; Kim, Sung Hong

doi:10.1007/s00604-011-0633-0

Cited by 28 publications

(15 citation statements)

References 47 publications

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“…Most of the FQs exhibit similar excitation wavelengths at around 337 nm, excepting MAR, which shows a maximum excitation at 355 nm [25]. The excitation wavelength used was 337.1 nm, provided by the N 2 -laser excitation source, choosing 545 nm as emission wavelength.…”

Section: Resultsmentioning

confidence: 99%

“…Several methods, most of them for screening purposes, have been described for the direct determination of FQs using TSL [20][21][22][23][24]. A method for the determination of two FQs based on the TSL plasmonically enhanced by silver nanoparticles has also been reported [25]. In addition, terbium(III) has been used as postcolumn derivatizing reagent in liquid chromatography for the determination of several FQs in milk samples [26].…”

Section: Introductionmentioning

confidence: 99%

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Determination of fluoroquinolone antibiotics by microchip capillary electrophoresis along with time-resolved sensitized luminescence of their terbium(III) complexes

2014

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We report on the time-resolved detection of the three fluoroquinolone (FQs) antibiotics ciprofloxacin (CIP), enrofloxacin (ENR) and flumequine (FLU). On addition of terbium(III) ions, the terbium(III)-FQs chelates are formed insitu in an on-capillary derivatization reaction of a microfluidic system. The laser-induced terbium(III)-sensitized luminescence of the chelates is measured at excitation/emission wavelengths of 337/545 nm. The analytes can be separated and quantified within less than 4 min. A solid phase extraction step for analyte preconcentration can be included prior to chelation and microchip capillary electrophoresis. The analytical ranges of the calibration graphs for CIP, ENR and FLU are from 10.6 to 60.0, 10.3 to 51.0, and 11.5 to 58.8 ng mL −1 , respectively, and the detection limits are 3.2, 3.1 and 3.6 ng mL −1 , respectively. The precision was established at two concentration levels of each analyte and revealed relative standard deviations in the range from 3.0 to 10.2 %. The method was applied to the analysis of FQ-spiked water samples.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of fluoroquinolone antibiotics by microchip capillary electrophoresis along with time-resolved sensitized luminescence of their terbium(III) complexes

2014

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“…The highest luminescence signal was obtained when 0.03 mol/L Tris–HCl buffer solution was used. Tris–HCl molecule may easily bind to Eu 3+ in the complexes and release water molecules and enhance the luminescence intensity by reducing non‐radiative energy loss . Therefore, 0.03 mol/L Tris–HCl buffer solution was employed in this work.…”

Section: Resultsmentioning

confidence: 99%

Investigation on the co‐luminescence effect of europium (III)–lanthanum(III)–dopamine–sodium dodecylbenzene sulfonate system and its application

Fang

Hui-nong

2013

Luminescence

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A novel luminescence, enhancement phenomenon in the europium(III)-dopamine-sodium dodecylbenzene sulfonate system was observed when lanthanum(III) was added. Based on this, a sensitive co-luminescence method was established for the determination of dopamine. The luminescence signal for the europium (III)-lanthanum(III)-dopamine-sodium dodecylbenzene sulfonate system was monitored at λ(ex) = 300 nm, λ(em) = 618 nm and pH 8.3. Under optimized conditions, the enhanced luminescence signal responded linearly to the concentration of dopamine in the range 1.0 × 10(-10)-5.0 × 10(-7) mol/L with a correlation coefficient of 0.9993 (n = 11). The detection limit (3σ) was 2.7 × 10(-11) mol/L and the relative standard deviation for 11 parallel measurements of 3.0 × 10(-8) mol/L dopamine was 1.9%. The presented method was successfully applied for the estimation of dopamine in samples of pharmaceutical preparations, human serum and urine. The possible luminescence enhancement mechanism of the system is discussed briefly.

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“…There is a drastic increase in fluorescence in microheterogeneous organized media rather than homogenous solutions [90,91]; micellar solutions obtained with anionic surfactants have the role of bringing the reactants together by trapping the energy donor inside the micelle and binding the lanthanide ion to its surface [85], enhancing the stability of the complexes and shielding them from quenchers [91]. The same effect can be obtained by using coordination polymer nanoparticles (CPNPs) [92], coordination polymer nanosheets (CPNSs) [93] or nanoparticles (NPs) [84,[94][95][96][97][98][99]. The source of the electromagnetic radiation necessary to obtain the excited state of the ligand is either the Xe lamp of the spectrofluorometer, or a chemical species in an excited state, such as SO 2 * obtained through a chemical reaction (chemiluminiscence).…”

Section: Quantitative Determination Of Quinolonesmentioning

confidence: 99%

Quinolone Complexes with Lanthanide Ions: An Insight into their Analytical Applications and Biological Activity

2020

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Quinolones comprise a series of synthetic bactericidal agents with a broad spectrum of activity and good bioavailability. An important feature of these molecules is their capacity to bind metal ions in complexes with relevant biological and analytical applications. Interestingly, lanthanide ions possess extremely attractive properties that result from the behavior of the internal 4f electrons, behavior which is not lost upon ionization, nor after coordination. Subsequently, a more detailed discussion about metal complexes of quinolones with lanthanide ions in terms of chemical and biological properties is made. These complexes present a series of characteristics, such as narrow and highly structured emission bands; large gaps between absorption and emission wavelengths (Stokes shifts); and long excited-state lifetimes, which render them suitable for highly sensitive and selective analytical methods of quantitation. Moreover, quinolones have been widely prescribed in both human and animal treatments, which has led to an increase in their impact on the environment, and therefore to a growing interest in the development of new methods for their quantitative determination. Therefore, analytical applications for the quantitative determination of quinolones, lanthanide and miscellaneous ions and nucleic acids, along with other applications, are reviewed here.

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Method for determination of fluoroquinolones based on the plasmonic interaction between their fluorescent terbium complexes and silver nanoparticles

Cited by 28 publications

References 47 publications

Determination of fluoroquinolone antibiotics by microchip capillary electrophoresis along with time-resolved sensitized luminescence of their terbium(III) complexes

Determination of fluoroquinolone antibiotics by microchip capillary electrophoresis along with time-resolved sensitized luminescence of their terbium(III) complexes

Investigation on the co‐luminescence effect of europium (III)–lanthanum(III)–dopamine–sodium dodecylbenzene sulfonate system and its application

Quinolone Complexes with Lanthanide Ions: An Insight into their Analytical Applications and Biological Activity

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