Nanomaterials-based enzyme mimetics (nanozymes) have attracted considerable interest due to their applications in imaging, diagnostics, and therapeutic treatments. Particularly, metal-oxide nanozymes been shown mimic the interesting redox properties biological activities of metalloenzymes. Here we describe an efficient synthesis MnFe2 O4 nanomaterials show how morphology can be controlled by using a simple co-precipitation method. The prepared this method exhibit remarkable oxidase-like...

Co–Co2B and Ni–Ni3B nanocomposites were synthesized by the reduction of Co2+ Ni2+ ions using ammonia–borane in methanol. The Co–Ni–B nanocomposite was co-reduction ions. catalytic activities these metal studied for dehydrogenation Three moles H2 liberated 2.5 min 4.2 case nanocomposites, respectively (catalyst/AB = 0.2). showed greater activity compared to individual metal–metal boride nanocomposites: 3 1.5 catalysts highly recyclable remained almost unchanged even after several cycles.

This work demonstrates a highly controlled electron transfer process at the interface of self-assembled nanozyme featuring well-defined active site and redox protein cytochrome c, enabling bioinspired oxygen reduction.

Abstract Facile and efficient reduction of graphene oxide (GO) novel applications the reduced (RGO) based materials are current interest. Herein, we report a facile method for GO by using biocompatible reducing agent dithiothreitol (DTT). Stabilization DTT formation six‐membered ring with internal disulfide linkage upon oxidation is responsible GO. The characterized several spectroscopic microscopic techniques. Dispersion RGO in DMF remained stable weeks suggesting that obtained DTT‐mediated...

Efficient loading of drugs in novel delivery agents has the potential to substantially improve therapy by targeting diseased tissue while avoiding unwanted side effects. Here we report first systematic study mechanism phenanthriplatin and its analogs into tobacco mosaic virus (TMV), previously used our group as an efficient carrier for anticancer drug delivery. A detailed investigation preferential uptake aquated form (∼2000 molecules per TMV particle versus ∼1000 chlorido form) is provided....

Magnetically recoverable and recyclable Co–Co2B nanocomposites are described for the catalytic chemoselective reduction of nitroarenes using two different hydrogen sources, sodium borohydride hydrazine hydrate. Both systems display an interesting switch. The kinetics nitroaromatics were studied first time follow nitroreductase enzyme-like with exceedingly high Kcat (5.2 × 104 s−1) Kcat/KM (4.4 106 M−1 values, reaching state perfection. recyclability catalyst system was by magnetically...

In this study, ebselen and its analogues are shown to be catalysts for the decomposition of peroxynitrite (PN). This study suggests that PN-scavenging ability selenenyl amides can enhanced by a suitable substitution at phenyl ring in ebselen. Detailed mechanistic studies on reactivity towards PN reveal these compounds react directly with generate highly unstable selenoxides undergo rapid hydrolysis produce corresponding seleninic acids. The interact nitrite more effectively than acids...

Development of substrate-selective nanozyme requires careful attention. We show that proteins with dimensions larger than the pore aperture MOF-808, installed a bis-(μ-oxo) dicopper active site in its adamantane pore, can compromise substrate selectivity oxidase nanozyme.

Abstract A catalytic reduction of graphene oxide (GO) by glutathione peroxidase (GPx) mimics is reported. This study reveals that GO contains peroxide functionalities, in addition to the epoxy, hydroxyl and carboxylic acid groups have been identified earlier. It also shown acts as a substrate GPx‐like activity organoselenium/tellurium compounds. The reaction tellurol, generated from corresponding ditelluride, reduces through (GSH)‐mediated cleavage linkage. mechanism tellurol presence GSH...

This work unveils the Ru atomic clusters-installed Co–Co 2 B nanocatalyst that remarkably combats borate-based product inhibition without compromising superior rate and turnover frequency of hydrogen generation from ammonia borane.

Fractional Fe incorporation in Ni–Ni 3 B furnishes a nanocatalyst that cooperatively enhances hydrogen production from ammonia borane following enzyme-like kinetics.

Abstract Plastic is an important commodity that used in several sectors. However, plastic waste generation a pressing issue and needs attention as it risks the environment. While methods such landfilling, incineration recycling are known for handling waste, they have their own limitations like of secondary pollutants low quality recycled plastic. In this scenario, new technologies efficiently need hour aggravating concern pollution its health risks. This highlight article predominantly...

Abstract A rapid, and metal‐free approach for the synthesis of functionalized benzofurans 10 is illustrated by PhI 9 catalyzed cyclization 2‐hydroxystilbenes 8 . The were cyclized using mol % as a precatalyst, 2.0 equiv. m ‐CPBA an oxidant 2.4 TFA additive at room temperature under ultrasonic irradiation condition. gained in good to excellent yields with shorter reaction times.