A new peptide-mediated COF nanocatalytic amplification SERS quantitative assay for ultratrace Cu2+

Shu, Yiyi; Zhi, Shengfu; Li, Sha; Liang, Aihui; Jiang, Zhiliang

doi:10.1016/j.jiec.2022.05.046

Cited by 16 publications

(9 citation statements)

References 33 publications

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“…Jiang and co-workers prepared three COFs, and then, a sensitive and selective SERS/RRS/Abs trimode assay platform was established by combining the COF amplification indicator reaction with the specific peptide reaction of Cu 2+ . The SERS mode showed excellent performance for detection of Cu 2+ with the linear range of 0.005–0.115 nmol L –1 (LOD = 0.0045 nmol L –1 ) …”

Section: Surface-enhanced Raman Scatteringmentioning

confidence: 99%

“…The SERS mode showed excellent performance for detection of Cu 2+ with the linear range of 0.005−0.115 nmol L −1 (LOD = 0.0045 nmol L −1 ). 62 ■ COF IN ELECTROCHEMICAL SENSOR Electrochemical sensors are an important research field in analytical chemistry. It is a special device that combines sensing technology and electroanalysis technology to detect some specific substances; the working principle is shown in Figure 7.…”

Section: ■ Luminescent and Colorimetric Sensingmentioning

confidence: 99%

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Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

et al. 2023

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As an emerging porous crystalline organic material, the covalent organic frameworks (COFs) are given more and more attention in many fields, such as gas storage and separation, catalysis, energy storage and conversion, luminescent devices, drug delivery, pollutant adsorption and removal, analysis and detection due to their special advantages of high crystallinity, flexible designability, controllable porosities and topologies, intrinsic chemical and thermal stability. In recent years, the COFs are applied in analytical chemistry, for instance, chromatography, solid-phase microextraction, luminescent and colorimetric sensing, surface-enhanced Raman scattering and electroanalytical chemistry. The COFs decorated electrodes show high performance for detecting trace substances with remarkable selectivity and sensitivity, such as heavy metal ions, glucose, hydrogen peroxide, drugs, antibiotics, explosives, phenolic compounds, pesticides, disease metabolites and so on. This review mainly summarized the application of COF based electrochemical sensor according to different target analytes.

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Section: Surface-enhanced Raman Scatteringmentioning

confidence: 99%

Section: ■ Luminescent and Colorimetric Sensingmentioning

confidence: 99%

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

et al. 2023

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“…Similarly, a non-pretreatment SERS detection was completed by using a plasma platform functionalized ( 16 ). To improve the selectivity and detection range, some selective bioreactions such as Apt and peptide were used in SERS ( 17 – 19 ). Yang et al ( 20 ) established an Apt-SERS sensor for the highly selective detection of thrombin, combining the nanocatalyzed SERS reaction of gold nanoparticles (AuNPs) on HAuCl 4 -H 2 O 2 with the Apt reaction, which could effectively detect the concentration range of 0.13–53.33 nmol/L Pb 2+ .…”

Section: Introductionmentioning

confidence: 99%

Nanogold sol plasmon discattering assay for trace carbendazim in tea coupled aptamer with Au3+-glyoxal-carbon dot nanocatalytic reaction

Bai

Zhang

et al. 2023

Front. Nutr.

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Carbendazim (CBZ) is a broad-spectrum fungicide, which is toxic to mammals. Therefore, it is very necessary to establish a sensitive detection for food safety. An experiment found that CDFe exhibited excellent catalysis for the nano-indicator reaction of HAuCl4-glyoxal to produce gold nanoparticles (AuNPs) and that the generated AuNPs have a very strong surface-enhanced Raman scattering (SERS) effect at 1613 cm−1 in the presence of Victoria blue B molecular probes, and resonance Rayleigh scattering (RRS) signals at 370 nm. The aptamer (Apt) suppressed the catalysis of CDFe to cause the SERS and RRS signals decreasing. With the addition of CBZ, the specific Apt reaction occurred to restore the catalysis of CDFe, and resulting in a linear increase in the signals of RRS and SERS. As a result, this new nanocatalytic amplification indicator reaction was coupled with a specific Apt reaction of carbendazim (CBZ), to construct a new CDFe catalytic amplification-aptamer SERS/RRS discattering assay for ultratrace CBZ, which was used to analyze CBZ in tea samples with satisfactory results. In addition, this biosensoring platform can be also used to assay profenofos.

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“…As attractive synthesis routes, mechanical chemical polishing and hydrothermal treatment at room temperature are facilitating the extensive application and preparation of the COF package ( 18 ) as evidenced by recent studies ( 19 - 21 ) in optics, chemistry and electronics. Also, SERS has been applied to the determination of metal ions, based on the use of COF materials ( 22 , 23 ). To improve the performance of the COFs, the doping of metal nanoparticles into the COFs is simple and effective strategy.…”

Section: Introductionmentioning

confidence: 99%

Highly catalytic nanoenzyme of covalent organic framework loaded starch- surface-enhanced Raman scattering/absorption bi-mode peptide as biosensor for ultratrace determination of cadmium

Shu²,

Li³

et al. 2023

Front. Nutr.

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High affinity peptides (PTs) have been used in nanoanalysis, but there are no reports which combine PTs with a liquid crystal (LC) covalent organic framework (COF) supported soluble starch (SS) catalytic amplification system as a biosensor recognition element. In this study, a new, highly sensitive and selective bi-mode molecular biosensor has been developed for the determination of cadmium ion (Cd2+). Specifically, a highly catalytic and stable COF supported SS nanosol catalyst was fabricated such that a nanocatalytic indicator reaction system for HAuCl4-sodium formate was established based on surface-enhanced Raman scattering (SERS). The Au nanoparticles produced exhibited a surface plasmon resonance (SPR) absorption peak at 535 nm and a SERS peak at 1,615 cm–1. Combining the nanocatalytic amplification indicator system with the specific PTs reaction permitted a sensitive and selective SERS/absorption bi-mode platform to be developed for the determination of cadmium in rice. The linear range for SERS determination was 0.025–0.95 nmol/L and the detection limit (DL) was 0.012 nmol/L.

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A new peptide-mediated COF nanocatalytic amplification SERS quantitative assay for ultratrace Cu2+

Cited by 16 publications

References 33 publications

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

Nanogold sol plasmon discattering assay for trace carbendazim in tea coupled aptamer with Au3+-glyoxal-carbon dot nanocatalytic reaction

Highly catalytic nanoenzyme of covalent organic framework loaded starch- surface-enhanced Raman scattering/absorption bi-mode peptide as biosensor for ultratrace determination of cadmium

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