Colorimetric determination of F-, Br- and I- ions by Ehrlich’s bio-reagent oxidation over enzyme mimic like gold nanoparticles: Peroxidase-like activity and multivariate optimization

Amourizi, Fereshteh; Dashtian, Kheibar; Ghaedi, Mehrorang; Hajati, Shaaker

doi:10.1016/j.saa.2019.117606

Cited by 17 publications

(3 citation statements)

References 44 publications

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“…Due to their low cost, plenty of morphologies, good electro-catalytic activity, high surface area and promoting electron transfer, inorganic nanomaterials have attracted more interest as sensors and biosensors [15] , [16] , [17] , [18] , [19] , [20] , [21] . Among them, zinc sulfide (ZnS) has been greatly used due to several advantages such as low cost, non-toxic, easily fabricated, high capacitance and good stability [22] .…”

Section: Introductionmentioning

confidence: 99%

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Alkahtani

Mahmoud

Mahnashi

et al. 2021

Microchemical Journal

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Section: Introductionmentioning

confidence: 99%

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Alkahtani

Mahmoud

Mahnashi

et al. 2021

Microchemical Journal

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“…The results are shown in Figure d–f. It can be observed that l -glutathione and l -aspartic acid disrupted the colorimetric process due to their antioxidant properties and high ability to trap active radicals . However, the other tested species at a concentration of 0.7 mM did not interfere with the biosensor’s performance, indicating the sensitive and selective nature of the designed colorimetric probe platform.…”

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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“…Moreover, metalloporphyrins organic linkers, including M–N x sites, are generated as the two pyrrole protons (N–H) in the rigid macrocycles of porphyrin are substituted by metal ions. Metalloporphyrin‐based nanozymes have proven with various mimic enzyme activities containing peroxidase (POD)‐, oxidase (OXD)‐, and superoxide dismutase (SOD)‐like activity (Amourizi et al., 2020; Sharifnezhad et al., 2022, 2023; Talebi, Dashtian, Zare‐Dorabei, Amourizi, et al., 2023; Talebi, Dashtian, Zare‐Dorabei, Ghafuri, et al., 2023). However, the accessibility to the active sites of MOFs is still challenging.…”

Section: Introductionmentioning

confidence: 99%

Zirconium‐porphyrin‐MOF‐based oxidase‐like nanozyme with oxygen vacancy for aflatoxin B1 colorimetric sensing

Zhang,

Li,

Xia

et al. 2024

Journal of Food Science

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In this study, a porous coordination network zirconium‐porphyrin‐based nanoparticle with oxygen vacancies (OVs) was prepared using acetic acid and benzoic acid as modulators via a simple hydrothermal method. The presence of OVs was confirmed by various characterization methods and was found to enhance oxygen uptake and activation. This resulted in the generation of more reactive peroxyl radicals (•O2−) and led to an improved oxidase (OXD) mimetic activity. Additionally, it promoted 2,2′‐azino‐bis(3‐ethylbenzthiazoline‐6‐sulfonic acid) (ABTS) oxidation, with a low Km value of 0.07 mM and a high Vmax of 1.47 × 10−7 M·s−1. As aflatoxin B1 (AFB1) inhibits the Pt@PCN‐222‐ABTS nanozyme system, a colorimetric probe for AFB1 detection was constructed. The limit of detection (LOD) was 0.074 µg·L−1. This research presents a novel approach for designing a nanozymatic‐based colorimetric method to analyze trace AFB1 residues in food.

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Colorimetric determination of F-, Br- and I- ions by Ehrlich’s bio-reagent oxidation over enzyme mimic like gold nanoparticles: Peroxidase-like activity and multivariate optimization

Cited by 17 publications

References 44 publications

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

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

Zirconium‐porphyrin‐MOF‐based oxidase‐like nanozyme with oxygen vacancy for aflatoxin B1 colorimetric sensing

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