The triple-wavelength overlapping resonance Rayleigh scattering method and the fluorescence quenching method for the determination of chitooligosaccharides using trisodium-8-hydroxypyrene-1,3,6-trisulfonate as a probe

Sun, Zijun; Zou, Weiling; Huang, Jieyi; Su, Zhixing; Bai, Yan

doi:10.1016/j.saa.2019.05.005

Cited by 9 publications

(1 citation statement)

References 46 publications

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“…The detection range was 0.012−0.8 μg/mL, and the limit of detection was 1.7 ng/mL. Sun et al used chitooligosaccharide interacting with 8-hydroxyindole-1,3,6-trisulfonic acid trisodium salt to form an ion-associated complex, 29 which could enhance the RRS signal intensity and reduce the fluorescence intensity of 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS). A method for the quantitative detection of chitosan oligosaccharides by a three-wavelength overlap was established.…”

Section: ■ Introductionmentioning

confidence: 99%

New Ag-Doped COF Catalytic Amplification Aptamer Analytical Platform for Trace Small Molecules with the Resonance Rayleigh Scattering Technique

Pan

Yao

Liang

et al. 2020

ACS Appl. Mater. Interfaces

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Covalent organic frameworks (COFs) and Ag-doped COFs (AgCOFs) are prepared by the polycondensation procedure and characterized by electron microscopy and molecular spectral techniques. Their catalysis of the Cu2O particle reaction of glucose (GL)–Cu(II) was examined by resonance Rayleigh scattering (RRS), and AgCOFs were found to exhibit the strongest catalysis. The melamine (ML) aptamers (AptML) can attach to the surface of AgCOF and inhibit its catalytic activity. When melamine (ML) is added to this reacting solution, AptML–ML complexes are formed and the Apts are desorbed from the surface of AgCOF. As the concentration of ML increased, the catalytic activity of AgCOF increased and the RRS signal enhanced due to the increase in Cu2O particles. When the ML concentration was in the range of 0.79–13.2 nmol/L, the RRS intensity increased linearly, with a detection limit of 0.72 nmol/L. When the Apts of urea and bisphenol A (BPA) were replaced by the AptML, 66.7–1333 nmol/L urea and 0.33–2.7 nmol/L BPA, respectively, could also be determined, with detection limits of 30.4 nmol/L urea and 0.15 nmol/L BPA. Based on this, a new AgCOF amplification RRS method was established.

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Section: ■ Introductionmentioning

confidence: 99%

New Ag-Doped COF Catalytic Amplification Aptamer Analytical Platform for Trace Small Molecules with the Resonance Rayleigh Scattering Technique

Pan

Yao

Liang

et al. 2020

ACS Appl. Mater. Interfaces

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Rapid detection of chiral drug ephedrine using erythrosin B for the resonance Rayleigh scattering probe

Zhang

Tan

et al. 2020

Luminescence

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Ephedrine (EH) and pseudoephedrine (PEH), which are chiral enantiomers commonly used clinically, have different pharmacological actions and treatment effects due to their chiral nature. In the presence of Pd2+, the reaction system of Ery B (erythrosin B)‐Pd2+ has a strong resonance Rayleigh scattering (RRS) intensity. Adding EH into this system reduced the RRS intensity, but PEH could not produce this phenomenon. The chiral recognition of these enantiomers could be achieved according to this spectral difference. At the same time, reduction in RRS strength of the reaction system is proportional to the concentration of EH. Under optimized conditions, the linear range is 40–960 ng/ml, and the detection limit is 3.9 ng/ml. A new method for the rapid detection of EH enantiomers can be established. Based on this assay, a new method for the determination of the chiral enantiomers of EH and PEH can be developed.

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Redox-derivatization reaction-based rapid and sensitive determination of nitrite using resonance Rayleigh scattering method

Zhong

Tan

et al. 2020

Anal Bioanal Chem

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The triple-wavelength overlapping resonance Rayleigh scattering method and the fluorescence quenching method for the determination of chitooligosaccharides using trisodium-8-hydroxypyrene-1,3,6-trisulfonate as a probe

Cited by 9 publications

References 46 publications

New Ag-Doped COF Catalytic Amplification Aptamer Analytical Platform for Trace Small Molecules with the Resonance Rayleigh Scattering Technique

New Ag-Doped COF Catalytic Amplification Aptamer Analytical Platform for Trace Small Molecules with the Resonance Rayleigh Scattering Technique

Rapid detection of chiral drug ephedrine using erythrosin B for the resonance Rayleigh scattering probe

Redox-derivatization reaction-based rapid and sensitive determination of nitrite using resonance Rayleigh scattering method

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