Au-doped MOFs catalyzed electrochemiluminescence platform coupled with target-induced self-enrichment for detection of synthetic cannabinoid RCS-4

Cao, Qianying; Jiang, Ding; Xu, Fangmin; Wen, Jing; Wang, Wenchang; Shiigi, Hiroshi; Chen, Zhidong

doi:10.1007/s00604-022-05397-0

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…The multi-stage porous structure gave a Cu 3 (HHTP) 2 /PTCA-COF composite with high porosity and a large surface area, showing excellent adsorption capacity and effectively improving the enrichment capacity of diclazepam. As shown in Figure S5B, the difference of absorbance of the UV absorption spectrum at 317 nm was calculated according to the Lambert–Beer law ( A = kC ) . The adsorption capacity of Cu 3 (HHTP) 2 on diclazepam was 0.065 g/g (curve b), while curve a was the initial absorbance of diclazepam.…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure S5B, the difference of absorbance of the UV absorption spectrum at 317 nm was calculated according to the Lambert−Beer law (A = kC). 41 The adsorption capacity of Cu 3 (HHTP) 2 on diclazepam was 0.065 g/g (curve b), while curve a was the initial absorbance of diclazepam.…”

Section: Ecl Behavior and Electrochemical Characterization Of The Mod...mentioning

confidence: 99%

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Highly Efficient Dual-Color Luminophores for Sensitive and Selective Detection of Diclazepam Based on MOF/COF Bi-Mesoporous Composites

Jiang

Cao

et al. 2023

ACS Sens.

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Currently, studies on electrochemiluminescence (ECL) mainly focused on the single emission of luminophores while those on multi-color ECL were rarely reported. Here, a bimesoporous composite of the metal−organic framework (MOF)/ covalent-organic framework (COF) with strong and stable dual-color ECL was prepared to construct a novel ECL sensor for sensitive detecting targets. A PTCA-COF with excellent ECL performance was loaded with a great amount of another ECL emitter Cu 3 (HHTP) 2 . Remarkably, the integrated composite had both ECL properties of PTCA-COF at 520 nm and Cu 3 (HHTP) 2 at 600 nm wavelengths. Furthermore, Cu 3 (HHTP) 2 with good electron transfer ability can greatly enhance the electrical conductivity and promote electrochemical activation. Thus, the simultaneous enhanced two-color ECL intensity and the catalytic properties of the conductive MOF exerted a dual enhancement effect on the ECL signal of the composite. Significantly, diclazepam can not only be adsorbed well on the multistage porous structure MOF/COF composite by π−π interactions but also selectively quench the ECL signal of the PTCA-COF, realizing the sensitive detection. The ECL sensor showed a wide detection range from 1.0 × 10 −13 to 1.0 × 10 −8 g/L, and the limit of detection (LOD) was as low as 2.6 × 10 −14 g/L (S/N = 3). The proposed ECL sensor preparation method was simple and sensitive, providing a new perspective for the potential application of multi-color ECL in the sensing field.

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Section: Resultsmentioning

confidence: 99%

Section: Ecl Behavior and Electrochemical Characterization Of The Mod...mentioning

confidence: 99%

Highly Efficient Dual-Color Luminophores for Sensitive and Selective Detection of Diclazepam Based on MOF/COF Bi-Mesoporous Composites

Jiang

Cao

et al. 2023

ACS Sens.

Self Cite

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Metal-organic frameworks as promising solid-phase sorbents for the isolation of third-generation synthetic cannabinoids in biological samples

Martínez-Pérez-Cejuela

Conejero

Amorós

et al. 2023

Analytica Chimica Acta

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Ultrasensitive electrochemiluminescence sensor for the detection of synthetic cannabinoids based on perovskite as coreaction accelerator and light-scattering effects of photonic crystals

An,

Jiang,

Cao

et al. 2023

Analytica Chimica Acta

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Au-doped MOFs catalyzed electrochemiluminescence platform coupled with target-induced self-enrichment for detection of synthetic cannabinoid RCS-4

Cited by 6 publications

References 40 publications

Highly Efficient Dual-Color Luminophores for Sensitive and Selective Detection of Diclazepam Based on MOF/COF Bi-Mesoporous Composites

Highly Efficient Dual-Color Luminophores for Sensitive and Selective Detection of Diclazepam Based on MOF/COF Bi-Mesoporous Composites

Metal-organic frameworks as promising solid-phase sorbents for the isolation of third-generation synthetic cannabinoids in biological samples

Ultrasensitive electrochemiluminescence sensor for the detection of synthetic cannabinoids based on perovskite as coreaction accelerator and light-scattering effects of photonic crystals

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