Adsorption for rhodamine b dye and biological activity of nano-porous chitosan from shrimp shells.

The present work aims to evaluate the removal capacity of Rhodamine B dye (RhB) using nano-porous chitosan (NC) from shrimp shells. NC was characterized by XRD, SEM-EDS, N porosimetry, zeta potential (ZP), FTIR, DLS, and zero charge point (pH). Compound central rotational design (CCRD) was used to determine the ideal condition and antimicrobial activity was evaluated against different strains.

Green Nanoarchitectonics of Silver Nanoparticles for Antimicrobial Activity Against Resistant Pathogens.

Antimicrobial resistance represents a serious concern to public health, being responsible for hospital infections, affecting mainly immunosuppressed patients. Thus, nanotechnology appears as an alternative to solve this problem, through the application of metallic nanoparticles with antimicrobial activity. The present work aims to synthesize and characterize AgNPs from (AgNPs-KP) and extract (AgNPs-AV), evaluating the antimicrobial activity against carbapenemase (KpC) and the cytotoxicity in the L929 cell line.

Silver nanoparticles from residual biomass: Biosynthesis, characterization and antimicrobial activity.

The industrial effluent contaminated with organic pollutants has been causing an increase in the toxicity of the ecosystem, causing a great environmental impact. Thus, the present work aims the green synthesis of silver nanoparticles (AgNPs) from Aloe vera, its characterization and antimicrobial activity against Pseudomonas aeruginosa (ATCC 27853) and Staphylococcus aureus (ATCC 25923). AgNPs were characterized by X-ray diffraction (XRD), Scanning Electronic Microscopy with Energy Dispersive Spectroscopy (SEM-EDS), Zeta Potential (ZP) and N porosimetry (BET/BJH method).

Iron oxide nanocatalyst with titanium and silver nanoparticles: Synthesis, characterization and photocatalytic activity on the degradation of Rhodamine B dye.

Nowadays, there is a growing concern about the environmental impacts of colored wastewater. Thus, the present work aims the synthesis, characterization and determination of photocatalytic activity of iron oxide (FeO) nanocatalyst, evaluating the effect of hybridization with titanium (TiNPs-FeO) and silver (AgNPs-FeO) nanoparticles, on the degradation of Rhodamine B dye (RhB). Nanocatalysts were characterized by XRD, SEM, TEM, FTIR, N porosimetry (BET/BJH method), zeta potential and DRS.