Boosting the visible-light-driven photocatalytic antibacterial performance of MoS₂ nanosheets by poly(3-(4-methyl-3′-thiophenoxy))propyltrimethylammonium chloride (PThM) modification

Abstract

A schematic diagram of the synthesis of PTh/MoS2 and PThM/MoS2 and their use in the inactivation of E. coli.

Durable Rapid Self-Disinfection, Reusable Protective Clothing Based on the Ag-Pd@MoS2 Nanozyme with Enhanced Triple-Mode Synergistic Antibacterial Effect

“…38 The surface charge of MoS 2 nanosheets was also detected, and its value was −28.5 eV (Figure S1), which was similar to previous research results. 25,35 The negative charge of MoS 2 nanosheets caused by the sulfur atom in the nanosheets made it easier to absorb Ag + through the electrostatic reaction, contributing to the synthesis of Ag@MoS 2 nanosheets. The SEM images (Figure 1D) indicated that Ag-Pd nanoparticles marked by red circles were successfully embedded between the sheets of MoS 2 nanosheets.…”

“…22−24 However, the surface electronegativity and easy accumulation of pure MoS 2 nanomaterials reduce the contact between bacteria and MoS 2 , thus further decreasing the sterilization efficiency. 25,35 Nanozymes are considered as a promising and efficient spectral antibacterial agent, mainly because they can spontaneously generate reactive oxygen species (ROS, such as such as 1 O 2 , • OH, etc.) in situ to inactivate bacteria.…”

“…MoS 2 , as a two-dimensional material, has been reported to have perfect antibacterial effect due to its good biocompatibility, easily modifiable surface, and remarkable photothermal conversation performance when irradiated with near-infrared (NIR) light. − However, the surface electronegativity and easy accumulation of pure MoS 2 nanomaterials reduce the contact between bacteria and MoS 2 , thus further decreasing the sterilization efficiency. , Nanozymes are considered as a promising and efficient spectral antibacterial agent, mainly because they can spontaneously generate reactive oxygen species (ROS, such as such as 1 O 2 , · OH, etc.) in situ to inactivate bacteria .…”

Photocatalytic antibacterial agents based on inorganic semiconductor nanomaterials: a review

“…The enhanced photocatalytic performance is attributed to the facilitated charge separation and increased amounts of ROS. 59 Cai fabricated a coating of MoS 2 /PDA–arginine–glycine–aspartic acid (RGD). 60 The coating on the Ti implant not only enhanced osteogenesis but also exhibited effective antibacterial performance.…”

Rapid Self-Disinfection Nanofiber Film Based on AgPd Hollow Nanospheres

“…Therefore, using nanomaterials as antibacterial agents was a very effective way to solve the problem of insufficient antibacterial materials. Commonly used antimicrobial nanomaterials include carbon-based materials, 3,10−13 metal nanoparticles, [14][15][16][17][18]25,26 metal oxides/sulfides, 1,19−22 and functional polymers. 23−26 had significant development in biology due to their excellent antibacterial ability and good biocompatibility.…”