A facile one-pot synthesis of hemin/ZIF-8 composite as mimetic peroxidase

Li, Danlin; Wu, Shuai; Wang, Feifei; Jia, Shao‐Yi; Liu, Yong; Han, Xu; Zhang, Liwei; Zhang, Shuliang; Wu, Yuming

doi:10.1016/j.matlet.2016.04.200

Cited by 34 publications

(18 citation statements)

References 14 publications

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“…In the thermal solvent method, zinc salt and 2‐methylimidazole (Hmim) were dissolved in different molar ratios in different solvents and were carried out in different conditions of temperature and time. Zinc salt could be Zn(NO 3 ) 2 · 6H 2 O, Zn(NO 3 ) 2 · 4H 2 O, Zn(CH 3 COO) 2 · 2H 2 O, ZnCl 2 , or Zn(OH) 2 . The zinc salt to Hmim molar ratio (Zn:Hmim) is often taken excessively (1:4–1:6), and in some studies, the Hmim seemed to be extremely high (1:56–1:70) …”

Section: Introductionmentioning

confidence: 99%

Preparation of nano‐ZIF‐8 in methanol with high yield

Ta¹,

Nguyen²,

Trinh³

et al. 2018

Can J Chem Eng

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This article systematically presented analysis results of factors affecting the preparation of nano‐ZIF‐8 in methanol for high yield. Samples were characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Brunauer‐Emmett‐Teller (BET) adsorption, and thermogravimetry‐differential thermal analysis (TG/DTA). Synthesized nano‐ZIF‐8 had advantages over commercial ZIF‐8 (Basolite® Z1200 from Sigma‐Aldrich) such as a higher surface area, consisting of not only micropores like Basolite® Z1200 but also subordinate mesopores, formed by an assembly of nano‐ZIF‐8 crystals, which was 30 nm. Specifically, for the first time, nano‐ZIF‐8 was prepared in methanol with the yield of 61.2 %.

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Section: Introductionmentioning

confidence: 99%

Preparation of nano‐ZIF‐8 in methanol with high yield

Ta¹,

Nguyen²,

Trinh³

et al. 2018

Can J Chem Eng

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“…The broad anodic peak around 1.5 V is ascribed to the oxidation reactions of metallic Fe [12,13]. The conversion reaction of Fe-based oxides as follows [11,12]: As shown in Fig. 3c…”

Section: Resultsmentioning

confidence: 93%

Enhanced sodium ion batteries performance by the phase transition from hierarchical Fe2O3 to Fe3O4 hollow nanostructures

et al. 2017

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Hierarchical Fe 3 O 4 hollow nanostructures are synthesized from the phase transition of Fe 2 O 3 hollow nanostructures, which are prepared through a dissolution-recrystallization process. The hierarchical Fe 3 O 4 hollow nanostructures, applied as an anode material for Na-ion batteries, display good rate capability and cycling stability. The reversible capacity of 150 mAh/g at 100 mA/g after 50 cycles can be maintained for Fe 3 O 4 anode. The superior Na-ion storage properties of hierarchical Fe 3 O 4 could be largely ascribed to the stable electrode structure during Na-ion insertion and extraction process. On the contrary, Fe 2 O 3 anode exhibits a high initial discharge capacity (686 mAh/g), but it suffers from poor cycling stability due to the remarkable pulverization of the electrode.

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“…Previously,biological cofactors were neededtodisplay catalytic oxidative activity,a nd the well-known biological cofactor of hemin (or heme) has been involved in the MOF (including ZIF-8) throughm ethods of cofactor solutionw etting [23] or solvothermal synthesis. [24][25][26] These approaches utilized MOF materials as as imple support on which the heterogeneous species were incorporated physically.T hese hybrid MOFs therefore had heterogeneous active sites, and the chemical characteristicso f ZIF materials were not extensively exploited for the expression of catalytic activity. [27] We report here that Cu/ZIF-8 exhibits catalytic oxidative activity by itself withouto ther biological cofactors and that the catalytic activity of Cu/ZIF-8 with low toxicity can be exploited for the imaging of cancerc ells.…”

Section: Introductionmentioning

confidence: 92%

“…In this study, Cu‐doped ZIF‐8 (Cu/ZIF‐8) was demonstrated to be a peroxidase‐like catalyst that exhibits oxidative catalytic activity and was exploited for cancer‐cell imaging through the interaction with reactive oxidative species (ROS) in the cancer cell. Previously, biological cofactors were needed to display catalytic oxidative activity, and the well‐known biological cofactor of hemin (or heme) has been involved in the MOF (including ZIF‐8) through methods of cofactor solution wetting or solvothermal synthesis . These approaches utilized MOF materials as a simple support on which the heterogeneous species were incorporated physically.…”

Section: Introductionmentioning

confidence: 99%

Cancer‐Cell Imaging Using Copper‐Doped Zeolite Imidazole Framework‐8 Nanocrystals Exhibiting Oxidative Catalytic Activity

Keum

Park

Lee

2018

Chemistry An Asian Journal

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Copper-doped zeolite imidazole framework-8 (Cu/ZIF-8) was prepared and its peroxidase-like oxidative catalytic activity was examined with a demonstration of its applicability for cancer-cell imaging. Through simple solution chemistry at room temperature, Cu/ZIF-8 nanocrystals were produced that catalytically oxidized an organic substrate of o-phenylenediamine in the presence of H O . In a similar manner to peroxidase, the Cu/ZIF-8 nanocrystals oxidized the substrate through a ping-pong mechanism with an activation energy of 59.2 kJ mol . The doped Cu atoms functioned as active sites in which the active Cu intermediates were expected to be generated during the catalysis, whereas the undoped ZIF-8 did not show any oxidative activity. Cu/ZIF-8 nanocrystals exhibited low cell toxicity and displayed catalytic activity through interaction with H O among various reactive oxygen species in a cancer cell. This oxidative activity in vitro allowed cancer-cell imaging by exploiting the photoluminescence emitted from the oxidized product of o-phenylenediamine, which was insignificant in the absence of the Cu/ZIF-8 nanocrystals. The results of this study suggest that the Cu/ZIF-8 nanocrystal is a promising catalyst for the analysis of the microbiological systems.

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A facile one-pot synthesis of hemin/ZIF-8 composite as mimetic peroxidase

Cited by 34 publications

References 14 publications

Preparation of nano‐ZIF‐8 in methanol with high yield

Preparation of nano‐ZIF‐8 in methanol with high yield

Enhanced sodium ion batteries performance by the phase transition from hierarchical Fe2O3 to Fe3O4 hollow nanostructures

Cancer‐Cell Imaging Using Copper‐Doped Zeolite Imidazole Framework‐8 Nanocrystals Exhibiting Oxidative Catalytic Activity

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