Development of Chitosan Polysaccharide-Based Magnetic Gel for Direct Red 83:1 Removal from Water.

Water pollution caused by dyes is a significant environmental issue, necessitating the development of effective, cost-efficient decolorization methods suitable for industrial use. In this study, a Chitosan-Fe polymeric gel was synthesized, characterized, and tested for removing the azo dye Direct Red 83:1 from water. The polymeric magnetic chitosan was analyzed using various techniques: Field Emission Scanning Electron Microscopy (FE-SEM) revealed a porous structure, Differential Scanning Calorimetry (DSC) and Thermal Gravimetric Analysis (TGA) demonstrated the thermal stability, Infrared Spectrophotometry (IR) indicated the successful coordination of iron at the C3 position, and X-ray Powder Diffraction (XRD) confirmed the crystalline nature of the polymeric structure.

Evaluation of the In Vitro Antimicrobial Efficacy against and of a Novel 3D-Printed Degradable Drug Delivery System Based on Polycaprolactone/Chitosan/Vancomycin-Preclinical Study.

Acute and chronic bone infections, especially those caused by methicillin-resistant (MRSA), remains a major complication and therapeutic challenge. It is documented that local administration of vancomycin offers better results than the usual routes of administration (e.g.

Hydroxytyrosol is not genotoxic in vitro.

Hydroxytyrosol (HT) is an olive-derived phenol endowed with several biological activities, some of which demonstrated in humans. Indeed, the European Food Safety Authority (EFSA) allows the health claim that HT (≥5mg/d) "protects LDL particles from oxidative damage". In terms of safety, HT has been investigated as the predominant part of raw olive mill waste water extracts that have been granted the Generally Recognized as Safe (GRAS) status.

Toxicological evaluation of pure hydroxytyrosol.

Of all the phenolic constituents of olives and extra virgin olive oil, hydroxytyrosol is currently being actively exploited as a potential supplement or preservative to be employed in the nutraceutical, cosmeceutical, and food industry. In terms of safety profile, hydroxytyrosol has only been investigated as the predominant part of raw olive mill waste water extracts, due to the previous unavailability of appropriate quantities of the pure compound. We report the toxicological evaluation of hydroxytyrosol and, based on the results, propose a No Observed Adverse Effects Level (NOAEL) of 500mg/kg/d.