Ionic liquid enhanced fabrication of small-size BSA-Cu laccase mimicking nanozymes for efficient degradation of phenolic compounds

Recent Advancements in the Formulation of Nanomaterials-Based Nanozymes, Their Catalytic Activity, and Biomedical Applications

“…Moreover, ionic liquids also play an important role in improving the catalytic properties of certain nanozymes. For example, the activity of BSA-Cu laccase-mimicking nanozymes was significantly enhanced after fabrication with ionic liquids for efficient decomposition of phenolic compounds . Moreover, the modulation of zerovalent manganese nanoparticles (ZV-Mn NPs) with a novel type of ionic liquid has also resulted in the betterment of peroxidase-mimicking activity of ZV-Mn NPs which was indicated by the oxidation of TMB and an absorbance peak at 650 nm .…”

“…For example, the activity of BSA-Cu laccase-mimicking nanozymes was significantly enhanced after fabrication with ionic liquids for efficient decomposition of phenolic compounds. 113 Moreover, the modulation of zerovalent manganese nanoparticles (ZV-Mn NPs) with a novel type of ionic liquid has also resulted in the betterment of peroxidase-mimicking activity of ZV-Mn NPs which was indicated by the oxidation of TMB and an absorbance peak at 650 nm. 114 Therefore, it can be concluded that the incorporation of nucleic acid, metal ions, and ionic liquid has shown remarkable action on the built-in enzymatic activity of functionalized nanoparticles.…”

Breaking through the pH Limitation of Fe1–xS Nanozymes Using Component-Modulated Coupled Nanoclay

“…Generally, K m and V max are constants commonly used to measure the efficiency of enzyme-catalyzed reactions, with K m representing the affinity of the enzyme for the substrate and V max indicating the maximum reaction rate of the enzyme-catalyzed substrate. A smaller value of K m or a larger value of V max tends to indicate that the enzyme has good specificity for the substrate. , V max / K m is a key indicator of the enzyme catalytic efficiency. Compared to the steady-state kinetic data of bare Fe 1– x S (Table S1), Fe 1– x S/MK10 exhibited 11-fold higher V max and 52-fold higher V max / K m , suggesting that the introduction of MK10 greatly boosted the POD-like activity of Fe 1– x S. As shown in the steady-state kinetic parameters summarized in Table S2, Fe 1– x S/MK10 had a K m comparable to that of natural horseradish peroxidase (HRP), meaning a good affinity for the substrate TMB.…”

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

“…Uranium mining and metallurgy production are important pathways to discharge uranium into the environment. Uranium (U) is a radionuclide, and its main isotopes include U 234 , U 235 and U 238 . The radioisotopes produce internal and external radiation to the human body, and excessive radiation can cause damage to hematopoietic organs and nervous, genital, and digestive systems.…”

“…[225][226][227] Recently, a lot of nanozyme catalytic systems have been developed to degrade phenolic pollutants. 107,[109][110][111][117][118][119]121,124,[228][229][230][231][232][233][234][235][236][237][238][239] In a representative example, Sun et al studied the degradation process of 17β-estradiol (E2) driven by enzyme-like MnO 2 particles in detail. 236 With the presence of humic acid (HA), four pathways of E2 transformation were revealed, including decomposition, homo-coupling, dehydrogenation, and hetero-coupling (Fig.…”