Building of hierarchical core-shell hetero-structures is currently the subject of intensive research in the electrochemical field owing to its potential for making improved electrodes for high-performance micro-supercapacitors. Here we report a novel architecture design of hierarchical MnO2@silicon nanowires (MnO2@SiNWs) hetero-structures directly supported onto silicon wafer coupled with Li-io...

Based on the specific tumor microenvironment, characterized by an overproduction of H2O2 and a high glutathione (GSH) concentration, cascade reactions nanomaterials, capable mediating GSH depletion reactive oxygen species (ROS) generation, have become popular strategy to increase cancer therapy efficiency. In this study, we exploited reduced graphene oxide (rGO), one most promising graphene-bas...

In this work, an efficient synthesis of bionanohybrids as artificial metalloenzymes (Cu, Pd, Ag, Mn) based on the application enzyme a scaffold was described. Here we evaluated effect changing metal, pH medium, and amount in these metalloenzymes, where changes metal species size nanoparticles occur. These nanozymes were applied degradation hydrogen peroxide for their evaluation mimetics catalas...

Abstract: In this paper, kinetics of reductive leaching of manganese dioxide ore by ferrous ion in sulfuric acid media has been examined. Experimental results show that increasing temperature from 20 to 60 °C and decreasing ore particle size from −16+20 to −60+100 mesh considerably enhance both the dissolution rate and efficiency. Molar ratios of Fe2+/MnO2 and H2SO4/MnO2 in excess to the st...

The typical time-dependent decrease of the iron corrosion rate is often difficult to consider while designing Fe0-based remediation systems. One most promising approaches amendment with manganese dioxide (Fe0/MnO2 system). resulting system a very complex one where characterization challenging. present communication uses methylene blue discoloration (MB method) characterize Fe0/MnO2 system. Shak...

The use of nanoparticles for the therapeutic purpose is gaining pronounced importance. In last two decades, a number nanomedicines received regulatory approval and several showed promises through clinical trials. this content, it important to synthesize from various sources check its efficiency, especially antibacterial activity. today’s scenario are proving useful control multidrug resistance ...

The base-free oxidation of furfural by non-noble metal systems has been challenging. Although MnO2 emerges as a potential catalyst application in conditions, its catalytic efficiency still needs to be improved. crystalline form is an important factor affecting the ability furfural. For this reason, four forms (?, ?, ?, and ?-MnO2) were selected. Their performance surface functional groups analy...

While radiotherapy (RT) is commonly used in clinics for cancer treatment, the therapeutic efficiency is not satisfactory owing to the existence of the hypoxic tumor microenvironment which seriously affects the efficiency of RT. Herein, we design polyethylene glycol (PEG)-modified reduced nano-graphene oxide-manganese dioxide (rGO-MnO2-PEG) nanocomposites to trigger oxygen generation from H2O2 t...