Near-infrared light-responsive photothermal α-Fe₂O₃@Au/PDA core/shell nanostructure with on–off controllable anti-bacterial effects

Abstract

Antimicrobial materials are expected to be alternatives for antibiotics against multidrug-resistant bacteria. In this paper, the non-spherical "α" -Fe2O3@Au/PDA core/shell nanoparticles with tunable shapes are synthesized by a one-step in...

Tunable Synthesis of Hematite Structures with Nanoscale Subunits for the Heterogeneous Photo-Fenton Degradation of Azo Dyes

“…As a result, we confirmed that the as-synthesized sec D3Ds are three-dimensional in nature. Because of the rodlike (or spindle ,, ) characteristic of each branch, we further determined the structural thickness to be around 229 nm, consistent with a prior study . It has been previously suggested that the branch or so-called sub-branch with a rodlike shape is the fundamental building block of the entire dendritic or fractal structure.…”

“…The hydro/solvothermal − synthesis of branched and dendritic α-Fe 2 O 3 structures was optimized based on the concepts of prenucleation, facet-directed growth fractal, , acidity/basicity, and the solvent’s boiling point, polarity, and viscosity. All synthetic variants of the branched α-Fe 2 O 3 , as-synthesized via the hydro/solvothermal reaction of 4 mM K 3 [Fe­(CN) 6 ] with a controlled reaction temperature for 20 h, were summarized in Figure .…”

Architecting polyelectrolyte hydrogels with Cu-assisted polydopamine nanoparticles for photothermal antibacterial therapy

“…4 C). Both S. aureus and E. coli with PBS treatment showed smooth and intact cell membranes, indicating negligible damage to bacteria from PBS [ 49 ]. In contrast, the bacteria were damaged to varying degrees after the hydrogel and hydrogel ​+ ​NIR treatments.…”

Photothermal conversion performance and acid-induced aggregation of PLNP-Bi2S3 composite nanoplatforms

“…5d. 38,39 The above results suggest that PSS modified PLNP-Bi 2 S 3 composite nanoplatforms have good photothermal conversion performance.…”