An efficient upconversion luminescence energy transfer system for determination of trace amounts of nitrite based on NaYF4:Yb3+, Er3+ as donor

Chen, Jingguo; Chen, Hongqi; Zhou, Cailing; Xu, Juan; Yuan, Fei; Wang, Lun

doi:10.1016/j.aca.2011.11.006

Cited by 41 publications

(16 citation statements)

References 27 publications

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“…Different approaches have been developed for the analysis of nitrite [6], including kinetic [7,8], chromatography [9,10], spectrophotometric [11][12][13][14][15], spectroflurimetric [16][17][18][19], capillary electrophoresis [20][21][22], atomic absorption spectroscopy [1], pulse polarography [23] and electroanalytical methods [24][25][26]. However, some of these methods are expensive and timeconsuming [27], and some of them suffer from poor sensitivity [17].…”

Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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A copper(II) Schiff base complex, [Cu(cd4OMeSalMeen)], methyl-2-{[1-methyl-2-(4methoxy-phenolate)mehylidynenitrilo]ethyl}amino-1-cyclopentene dithiocarboxylate copper(II), was incorporated into triacetylcellulose membrane and applied as ionophore in order to develop an anion-selective optical sensor for the analysis of nitrite by absorption spectrophotometry. At optimum pH 3.0, a linear calibration curve was observed for nitrite in the range of 0.50 to 7.00 mgL -1 with a detection limit of 0.04 mgL -1 . The response time of the optode (t95%) was found to be 8-10 min, depending on the nitrite ion concentration. The proposed sensor was fully recovered in nitric acid solution (0.1 M) and had acceptable reproducibility (RSD=1.9%). The optode exhibited good selectivity toward nitrite ion according to hard-soft acid base (HSAB) principle and the formation constant was calculated. The application of the sensor for determination of nitrite content in meat products was quiet successful.

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Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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“…On the basis of similar FRET processes, from UCL of UCNPs (donors) to the absorption of organic dyes (acceptors), some upconversion nanocomposites are also used to construct nanoprobes for the detection of NO 2 − ,87 Cu 2+ ,88 and pH values,89 by selecting the appropriate chemodosimeter as the donor.…”

Section: Upconversion Nanocomposites For Detection Applicationmentioning

confidence: 99%

Upconversion‐Nanophosphor‐Based Functional Nanocomposites

2013

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Upconversion nanophosphors have the ability to generate visible or near-infrared (NIR) emissions under continuous-wave NIR excitation. Utilizing this special photoluminescent properties, upconversion nanophosphors can be used as key components in complex nanocomposites for a wide range of applications. This review summarizes the basic concept, fabrication strategy, and typical application of upconversion-nanophosphor-based functional nanocomposites. The motivation to design these structures comes from the potential applications in detection, multi-modality bioimaging, and NIR light-induced therapy, as well as the tuning of the upconversion luminescence emissions. This review will give a brief summary of this rapidly developing field, and provide guidance to design and to fabricate new nanocomposites based on upconversion nanophosphors.

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“…NaYF 4 :Yb 3+ ,Tm 3+ nanocrystals were synthesized according to a previously reported method. 28 Following a typical procedure, a solution was prepared by mixing together 2.2 mL of 0.2 M Y(NO 3 ) 3 , 0.5 mL of 0.1 M YbCl 3 , 0.1 mL of 0.1 M Tm(NO 3 ) 3 , and 1.75 mL of 0.1 M sodium citrate to form the metal-citrate complex. Then, 2.2 mL deionized water, 15 mL of ethanol and 0.1 g of CTAB were added to the solution.…”

Section: Preparation Of the Upconversion Nanoparticlesmentioning

confidence: 99%

Near-infrared to near-infrared upconverting NaYF4:Yb3+,Tm3+ nanoparticles-aptamer-Au nanorods light resonance energy transfer system for the detection of mercuric(ii) ions in solution

Chen

Yuan

Wang

et al. 2013

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A new luminescence resonant energy transfer (LRET) system has been designed that utilizes near-infrared (NIR)-to-NIR upconversion lanthanide nanophosphors (UCNPs) as the donor, and Au nanorods (Au NRs) as the acceptor. The UCNPs were excited by a near-infrared (980 nm) wavelength and also emitted at a near-infrared wavelength (804 nm) using an inexpensive infrared continuous wave laser diode. The Au NRs showed a high absorption band around 806 nm, which provided large spectral overlap between the donor and the acceptor. Hg(2+) ions were added to an aqueous solution containing the UCNPs and Au NRs that were modified with a Hg(2+) aptamer. Then, a sandwich-type LRET system was developed for the detection of Hg(2+) ions that had high sensitivity and selectivity in the NIR region. The method was successfully applied to the sensing of Hg(2+) ions in water and human serum samples.

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An efficient upconversion luminescence energy transfer system for determination of trace amounts of nitrite based on NaYF4:Yb3+, Er3+ as donor

Cited by 41 publications

References 27 publications

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Upconversion‐Nanophosphor‐Based Functional Nanocomposites

Near-infrared to near-infrared upconverting NaYF4:Yb3+,Tm3+ nanoparticles-aptamer-Au nanorods light resonance energy transfer system for the detection of mercuric(ii) ions in solution

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