Novel water-dispersible and biocompatible chitosan-functionalized graphene (CG) has been prepared by a one-step ball milling of carboxylic chitosan and graphite. Presence of nitrogen (from chitosan) at the surface of graphene enables the CG to be an outstanding catalyst for the electrochemical biosensors. The resulting CG shows lower ID/IG ratio in the Raman spectrum than other nitrogen-contain...

BACKGROUND Fe₃O₄-gold-chitosan core-shell nanostructure can be used in biotechnological and biomedical applications such as magnetic bioseparation, water and wastewater treatment, biodetection and bioimaging, drug delivery, and cancer treatment. RESULTS Magnetite nanoparticles with an average size of 9.8 nm in diameter were synthesized using the chemical co-precipitation method. A gold-coated...

Hydroxyapatite (HA) is a bioceramic very similar to the mineral component of bones and teeth. It well established that osteoblasts grow better onto HA-coated metals than on alone. Herein, preparation new system consisting magnetite (Fe3O4) HA functionalized with oleic acid simvastatin (SIMV), incorporated in chitosan (CHI) scaffolds, was undertaken. synthesized by hydrothermal method, while Fe3...

This paper provides an overview of how the surface properties of ferromagnetic nanoparticles dispersed in fluids is modified by natural and biocompatible polymers. Among common magnetic nanoparticles, magnetite (Fe3O4) and maghemite (g-Fe203) are popular candidates because of their biocompatibility. Natural polymeric coating materials are the most commonly used biocompatible magnetic nanopartic...

A new biocomposite cross-linked glutaraldehyde-chitosan/MgO/Fe3O4 (CTS-GL/MgO/Fe3O4) adsorbent with magneto-responsiveness was prepared and applied for the removal of reactive blue 19 (RB-19), a synthetic textile dye. The CTS-GL/MgO/Fe3O4 structurally characterized using spectroscopic (XRD, FTIR, SEM–EDX), its physicochemical properties were evaluated potentiometry pHpzc analyses. influence var...