The bi-metallic MOF-919 (Fe–Cu) nanozyme capable of bifunctional enzyme-mimicking catalytic activity

Abstract

In this study, we report on a bi-metal organic framework MOF-919 (Fe-Cu) capable of bifunctional-enzyme mimicking activity with oxidase- and peroxidase-like activities. The catalytic activities were examined by using o-phenylenediamine...

TiO2@MOF-919(Fe–Cu) as a sorbent for the extraction of benzoylurea pesticides from irrigation water and fruit juices

“…As shown in Fig. 2c, the main peaks at 1651 cm À1 , 1449 cm 26 The above results demonstrate the successful synthesis of TiO 2 @-MOF-919(Fe-Cu). The N 2 adsorption-desorption experiments show that TiO 2 @MOF-919(Fe-Cu) is a mesoporous type-IV material with a specic surface area of 406 m 2 g À1 , which is greatly improved compared with the TiO 2 bare spheres (Fig.…”

“…The diffraction peaks at 2 θ = 2.666°, 3.196°, 3.468°, 4.098°, and 4.657° are consistent with the characteristic diffraction peaks of MOF-919(Fe–Cu) in the literature. 26 The above results demonstrate the successful synthesis of TiO 2 @MOF-919(Fe–Cu). The N 2 adsorption–desorption experiments show that TiO 2 @MOF-919(Fe–Cu) is a mesoporous type-IV material with a specific surface area of 406 m 2 g −1 , which is greatly improved compared with the TiO 2 bare spheres (Fig.…”

Tailoring metal sites of FeCo-MOF nanozymes for significantly enhanced peroxidase-like activity

“…Strikingly, FeCo-MOF-H 2 exhibited a higher affinity to H 2 O 2 even when compared with natural HRP as well as reported Fe-based and Co-based nanozymes (Table 1). [41][42][43][44][45][46][47][48][49][50][51] Furthermore, FeCo-MOF-H 2 has a larger ν max than most of those nanozymes. These results also confirmed that the multiple sites of Co and Fe II contribute to the synergistic adsorption and catalysis on MOF-based nanozymes.…”

Cytotoxicity evaluation of environmentally friendly synthesis Copper/Zinc bimetallic nanoparticles on MCF-7 cancer cells

“…Copper is a metallic element with high ductility and thermal and electrical conductivity (Peralta 1994 ). Copper is an essential mineral for living organs because it plays a key role in the production of the respiratory enzyme of cytochrome oxidase C (Kulandaivel et al 2022 ; Stern 2010 ). Copper nanoparticles exhibit unique properties such as catalytic, antifungal (Asghar et al 2018 ) and antibacterial activity (Parimaladevi et al 2018 ) that are not found in commercial copper.…”