Self-assembly fabrication, microstructures and antibacterial performance of layer-structured montmorillonite nanocomposites with cationic silica nanoparticles

Abstract

Layer-structured montmorillonite nanocomposites containing cationic silica nanoparticles were fabricated for an enhancement in thermal stability and antibacterial performance.

A cellulose acetate/Amygdalus pedunculata shell-derived activated carbon composite monolith for phenol adsorption

“…[30][31][32] SEM observation showed a three-dimensional open-porous walled structure, which was conducive to the efficient adsorption of phenol. [33][34][35] In the preparation of composite materials from dispersions, a stable and homogeneous dispersion of functional materials should be retained during the formation of polymer matrix. 24,36 In the present study, APS-derived AC was well suspended in the CA solution of a DMF/1-hexanol mixture, resulting in the good dispersion of AC on the skeleton surface of the monolith (Fig.…”

Effective Antibacterial Glass Fiber Membrane Prepared by Plasma-Enhanced Chemical Grafting

“…Then, polymerization occurred mostly between 450 and 650 °C. 16 In the end, the weight plots of the samples became almost flat from 650 to 800 °C because of the eventual mineralization. By comparison between the PM and PBM without chemical grafting of TPMMC, it is clear that the plasma bombardment led to a weight loss of 0.6 wt % (PM and PBM plots indicating sample weights of 90.2 and 90.8 wt %, respectively, at 650 °C), which resulted from plasma etching.…”

“…Therefore, only the two membranes demonstrated two fingerprint peaks of the C–N deformation at 1564 and 1534 cm –1 , respectively, in the inset of Figure 3 with detailed plots from 1520 to 1580 cm –1 . 16−18…”

Recent Advances Toward the Use of Mesoporous Silica Nanoparticles for the Treatment of Bacterial Infections

“…For instance, an interesting example on the topic is the contribution by Wang et al, who prepared hybrid composites by layer by layer assemblies of negatively charged montmorillonite and ammonium-modified silica nanoparticles. 67 As a result, their system was able to fully destroy gram-positive and gram-negative bacteria due to the quaternary ammonium-modified MSNs. In addition to the former, Michailidis et al reported a parallel strategy to coat MCM-48 MSNs with C-18 and C-14 alkyl substituted quaternary ammonium salts, although in their example a broad range biocide (Parmetol S15) was loaded into the mesopores.…”

“… Silica system modified with poly-ions. MSNs Ionic liquids Membrane lysis None None E. coli None None 66 MMT-MSN D-C18-TMSACl Membrane lysis Water-repellant None None E. coli S. aureus None None 67 MCM-48 MSN D-C18-TMSACl D-C14-TMSACl Membrane lysis Biocidal Parmetol S15 None Sea bacteria Sea cells None 110 HMSNs D-C18-TMSACl Membrane lysis Biocidal Metronidazole None S. aureus, E. coli P. gingivalis None None 68 MCM-41 MSNs ε-poly-L-lysine Membrane sensitizing HKAI pH-driven lysine detachment E. coli S. marcescens Caco-2 Zebrafish 69 MCM-41 MSNs DAMO Membrane sensitizing Levofloxacin None E. coli S. aureus None None 70 …”