Multifunctional Ag@Fe2O3 yolk–shell nanoparticles for simultaneous capture, kill, and removal of pathogen

Antimicrobial silver-filled silica nanorattles with low immunotoxicity in dendritic cells

“…Wei et al 33 described Ag@Fe 2 O 3 nanorattles with conjugated glucose. This system serves as an example of multifunctional nanorattles in which glucose captures the bacteria, silver kills them and the magnetic shell allows the efficient removal of the nanorattles from the contaminated drinking water.…”

Regeneration of novel visible-light-driven Ag/Ag3PO4@C3N4 hybrid materials and their high photocatalytic stability

“…Moreover, decomposition of the Ag 3d spectrum into components for Ag þ and Ag 0 using binding energy of 367.8 and 373.8 eV for the Ag þ 3d 3/2 and 3d 5/2 levels, respectively, and 369.2 and 375.2 eV for the Ag 0 . This result indicates that Ag 0 particles appear on the photocatalyst surface [25,26]. Metallic silver is formed on the surface of Ag 3 PO 4 @C 3 N 4 photocatalysts and has contact with both Ag 3 PO 4 and C 3 N 4 , which can act as a charge transmission bridge in the hybrid catalyst [27].…”

Excellent fluoride decontamination and antibacterial efficacy of Fe–Ca–Zr hybrid metal oxide nanomaterial

“…Moreover, the developed nanomaterial presented larger zone of inhibition (Fig. 13) and lower IC 50 values as compared to other reported materials in literature (Table 5) [60][61][62]20,[63][64][65]. The antibacterial property of the nanomaterial may be due to the existence of co-ordinatively unsaturated Fe metal of the nanomaterial which generates reactive oxidative species so as to assist cellular distraction and cell demise [66].…”

“…The FT-IR spectra were recorded with 16 cm À1 spectral resolution with 64 co-added scans. The surface area of the adsorbent was determined by means of a surface area and porosity analyzer (model Nova 2000, Quantachrome Instruments Limited, USA) and calculated by applying the Brunau er-Emmett-Teller (BET) equation [20]. The total pore volume, percentage fluoride removal, and removal efficiency were calculated as reported [28].…”

“…A wide variety of materials like modified cellulose fiber, polymer/biopolymer composites [7], Fe 2 O 3 magnetic nanocomposite [8], bauxite [9], waste iron oxide [10], zeolite [11], multi-walled carbon nanotubes (MWCNTs) [12], biosorbents [17], mixed metal sorbents [18], nanoadsorbents [19], and natural materials [20] have been employed for efficient defluoridation of water/wastewater. In order to overcome the shortcomings relating to either high cost materials or excessive time and energy consumption in many synthesis processes, we have developed an efficient nanoadsorbent.…”