Photo-responsive oxidase-like nanozyme based on a vanadium-docked porphyrinic covalent organic framework for colorimetric L-Arginine sensing

Talebi, Maryam; Dashtian, Kheibar; Zare‐Dorabei, Rouholah; Ghafuri, Hossein; Mahdavi, Mohammad; Amourizi, Fereshteh

doi:10.1016/j.aca.2023.340924

Cited by 20 publications

(7 citation statements)

References 62 publications

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“…These materials offer high selectivity and sensitivity, making them suitable for complex fluid environments. 15,16 Recently, metalorganic frameworks (MOFs) have gained significant attention due to their tunable structures, large surface area and ability for surface engineering. These characteristics make MOFs highly feasible for constructing sensing platforms tailored to specific applications.…”

Section: Introductionmentioning

confidence: 99%

Red-emissive carbon nanostructure-anchored molecularly imprinted Er-BTC MOF: a biosensor for visual anthrax monitoring

Dashtian¹,

Norouzi²,

Amourizi³

et al. 2023

Analyst

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Section: Introductionmentioning

confidence: 99%

Red-emissive carbon nanostructure-anchored molecularly imprinted Er-BTC MOF: a biosensor for visual anthrax monitoring

Dashtian¹,

Norouzi²,

Amourizi³

et al. 2023

Analyst

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“…To investigate enzyme activity and establish the relationship between Fe–CeO 2 /MITiO 2 and enzyme steady-state kinetic parameters, a study of the Michaelis–Menten behaviors was conducted using TMB as the substrate. The Michaelis–Menten equation, V 0 = ( V max [S])/( K m + [S]), was employed to determine the initial velocity ( V 0 ), maximal reaction velocity ( V max ), the concentration of TMB substrate ([S]), and the Michaelis constant ( K m ). ,− By performing a series of nonenzymatic experiments on Fe–CeO 2 /MITiO 2 , the concentration of the TMB substrate was varied while keeping other parameters constant at different time points. The reaction rates for TMB oxidation were calculated, and this data was used to generate standard Michaelis–Menten curves (see Figure g).…”

Section: Resultsmentioning

confidence: 99%

Prussian Blue Analogues-Derived Molecularly Imprinted Nanozyme Array for Septicemia Detection

Dashtian,

Afshar Gheshlaghi,

Zare-Dorabei

et al. 2024

ACS Appl. Bio Mater.

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Septicemia, a severe bacterial infection, poses significant risks to human health. Early detection of septicemia by tracking specific biomarkers is crucial for a timely intervention. Herein, we developed a molecularly imprinted (MI) TiO 2 −Fe−CeO 2 nanozyme array derived from Ce[Fe(CN) 6 ] Prussian blue analogues (PBA), specifically targeting valine, leucine, and isoleucine, as potential indicators of septicemia. The synthesized nanozyme arrays were thoroughly characterized using various analytical techniques, including Fourier transform infrared spectroscopy, X-ray diffraction, fieldemission scanning electron microscope, and energy-dispersive X-ray. The results confirmed their desirable physical and chemical properties, indicating their suitability for the oxidation of 3,3′,5,5′-tetramethylbenzidine serving as a colorimetric probe in the presence of a persulfate oxidizing agent, further highlighting the potential of these arrays for sensitive and accurate detection applications. The MITiO 2 shell selectively captures valine, leucine, and isoleucine, partially blocking the cavities for substrate access and thereby hindering the catalyzed TMB chromogenic reaction. The nanozyme array demonstrated excellent performance with linear detection ranges of 5 μM to 1 mM, 10−450 μM, and 10−450 μM for valine, leucine, and isoleucine, respectively. Notably, the corresponding limit of detection values were 0.69, 1.46, and 2.76 μM, respectively. The colorimetric assay exhibited outstanding selectivity, reproducibility, and performance in the detection of analytes in blood samples, including C-reactive protein at a concentration of 61 mg/L, procalcitonin at 870 ng/dL, and the presence of Pseudomonas aeruginosa bacteria. The utilization of Ce[Fe(CN) 6 ]-derived MITiO 2 − Fe−CeO 2 nanozyme arrays holds considerable potential in the field of septicemia detection. This approach offers a sensitive and specific method for early diagnosis and intervention, thereby contributing to improved patient outcomes.

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“…In addition, there are colorimetric sensors based on COF nanozymes for detecting H 2 O 2 , L-arginine, alkaline phosphatase, etc. [108][109][110]. In these reports, COFs usually act as carriers and are important in improving the dispersion and activity of nanozymes.…”

Section: Othersmentioning

confidence: 99%

Research Progress on the Application of Covalent Organic Framework Nanozymes in Analytical Chemistry

Yao,

Xia,

2024

Biosensors

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Covalent organic frameworks (COFs) are porous crystals that have high designability and great potential in designing, encapsulating, and immobilizing nanozymes. COF nanozymes have also attracted extensive attention in analyte sensing and detection because of their abundant active sites, high enzyme-carrying capacity, and significantly improved stability. In this paper, we classify COF nanozymes into three types and review their characteristics and advantages. Then, the synthesis methods of these COF nanozymes are introduced, and their performances are compared in a list. Finally, the applications of COF nanozymes in environmental analysis, food analysis, medicine analysis, disease diagnosis, and treatment are reviewed. Furthermore, we also discuss the application prospects of COF nanozymes and the challenges they face.

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Photo-responsive oxidase-like nanozyme based on a vanadium-docked porphyrinic covalent organic framework for colorimetric L-Arginine sensing

Cited by 20 publications

References 62 publications

Red-emissive carbon nanostructure-anchored molecularly imprinted Er-BTC MOF: a biosensor for visual anthrax monitoring

Red-emissive carbon nanostructure-anchored molecularly imprinted Er-BTC MOF: a biosensor for visual anthrax monitoring

Prussian Blue Analogues-Derived Molecularly Imprinted Nanozyme Array for Septicemia Detection

Research Progress on the Application of Covalent Organic Framework Nanozymes in Analytical Chemistry

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