Recoverable peroxidase-like Fe3O4@MoS2-Ag nanozyme with enhanced antibacterial ability

Abstract

Graphical abstract

H2O2 generation enhancement by ultrasonic nebulisation with a zinc layer for spray disinfection

“…After air drying, 2.5% glutaraldehyde solution was added to fix the bacteria for 3 h. The samples were washed with 10%, 30%, 50%, 70%, 90% and 100% ethanol for 3 min and then frozen overnight. SEM observations were conducted after drying in a freeze dryer for 6 h [28] , [29] .…”

MoS2@PDA@Ag/PVA Hybrid Hydrogel with Excellent Light‐Responsive Antibacterial Activity and Enhanced Mechanical Properties for Wound Dressing

“…In the high-resolution spectrum of Ag 3d (Figure 1f), the two different peaks observed at 374.6 and 368.6 eV represented Ag 3d3/2 and Ag 3d5/2, with a splitting energy of 6 eV, indicating that the surface of MoS 2 @PDA was successfully coated with metallic silver. [32] Figure 1g shows a typical low-magnification transmission electron microscopy (TEM) image of the synthesized MoS 2 , which primarily consisted of small-sized nanoplatelets, disordered crystals, and microcrystals. [33] The modification of MoS 2 by mussel chemistry with PDA coating leads to a significant increase in thickness compared to that of pristine MoS 2 nanoparticles, demonstrating the successful synthesis of MoS 2 @PDA nanoparticles (Figure 1h).…”

Peroxidase Mimetic Nanozymes in Cancer Phototherapy: Progress and Perspectives

“…Besides the therapeutic platform, incorporating Au NPs into mesoporous carbon can facilitate the action of POD mimitic activity and generate ROS for intracellular oxidative damage of cancer cells. As shown in Figure 5 In addition to the previously mentioned advantages of nanozymes in cancer therapeutics, several further POD mimetic nanozyme platforms such as Au@Co-Fe NPs [72], CuO Nanorods [73], Fe3O4@MoS2-Ag nanozyme [74], Pd nanocrystals [75], and Pt hollow nanodendrites [76], N-doped spongelike carbon spheres (N-SCSs) [77], PEGylated palladium nanozyme (Pd-PEG) [78], tungsten sulfide quantum dots (WS2 QDs) [79], nickel disulfide (ND) nanozyme [80], iridium (Ir) nanoplates [81] and MoS2 [82] have been successfully utilized in antibacterial applications with significant outcomes. Table 1 summarizes POD-based nanozyme applications in cancer phototherapeutics.…”