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The main goal of this study was to synthesise and characterise different formulations based on alginate and alginate/chitosan microspheres containing nanoselenium (nano-Se) for controlled delivery applications. Nanosize elemental selenium was produced by using probiotic yogurt bacteria (Lactobacillus casei) in a fermentation procedure. The structural and morphological characterisation of the microspheres...
Herein, the authors developed a new and potential semi-interpenetrating polymer network (semi-IPN) hydrogels of poly vinyl alcohol (PVA), acryl amide and diallyldimethyl ammonium chloride employing chemical cross-linker N, N'-methylene bisacrylamide (NNMBA) and ammonium persulphate as an initiator by radical polymerisation. To analyse the copolymer formation between two monomers and IPN cross-linking...
Zinc and cerium carried zirconium phosphate was prepared by exchanging zinc and cerium ions into sodium zirconium phosphate through the ion-exchange method and characterized by energy dispersive X-ray spectroscopy, X-ray diffraction and scanning electron microscopy, also the antibacterial activity was tested. The result shows that the high content of zinc and cerium (Zn-Ce/ZrP) is obtained, and Zn-...
Fabrication and characterization of hydroxyapatite-forsterite-bioactive glass nanocomposite coating was the aim of this work. The sol-gel technique was used to perform hydroxyapatite-forsterite-bioactive glass nanocomposite coating on 316L stainless steel (SS). The X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) techniques were used to investigate...
Natural zeolites are bioactive materials. They have different applications; they are used as additives in animal feeds to support biomass production and used to treat stomach ulcers incisions in humans as they act as buffers to reduce stomach acidity. Based on different health applications, structural stability of zeolite during digestion is important to understand possible interactions, positive...
Comminuted fracture is still a medical problem because of the difficulties for the small bone pieces fixation. Bone adhesive is one of the most potential methods to solve the problem. However, there are a lot of defects in the present medical adhesives. Some adhesives will produce certain poisonous substance in body which would be harmful to people's health. Some have worse adhesive strength and degrade...
Human bone is a hydroxyapatite HAp (HCa5O13P3) and type I collagen based composite. Nowadays, many methods and techniques have been developed and applied to design advanced materials for bone replacement. A strategy for imitating in a tridimensional way the structure, composition and mechanical properties of a bone is mimicking it at nanometric scale. This can be carried out, by incorporating selective...
The materials surface plays an extremely important role in the response of the biological environment to the artificial medical devices. The initial protein interactions with implant surfaces are very important and therefore, it is clear that if the surface morphology, structure, composition, and properties are changed, cell functions are influenced. Nanoscale materials are thought to interact with...
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