This paper describes the rheological properties of silated hydroxypropylmethylcellulose (HPMC-Si) used in biomaterials domain as a three-dimensional synthetic matrix for tissue engineering. The HPMC-Si is an HPMC grafted with 3-glycidoxypropyltrimethoxysilane (GPTMS). HPMC and HPMC-Si were studied. It is shown that although silanization reduces the hydrodynamic volume in dilute solution, it doe...

An aqueous hybrid inorganic/organic sol-gel solution composed of tetraethylorthosilicate (TEOS), methyltriethoxysilane (MTES) and (3-glycidyloxypropyl)trimethoxysilane (GPTMS) was applied on ZnFe (14 wt.% Fe) electrodeposited steel as a sacrificial layer. Two precursor contents were studied: 10 (SG10) 30 % (SG30). First, the morphology thickness films assessed by Scanning Electron Microscopy (S...

In this work, an integrated system that combines anodizing process with the deposition of a hybrid SiO2 sol-gel coating was developed aim improving corrosion resistance AZ31B Mg alloy. The optimization conditions using alkaline electrolyte (NaOH) modified different concentrations sodium metasilicate pentahydrate explored together preparation and sol obtained by hydrolysis condensation TEOS (tet...

Hybrid nanomaterials based on zinc oxide were synthesized via the sol-gel method, using different silane coupling agents: (3-glycidyloxypropyl)trimethoxysilane (GPTMS), phenyltriethoxysilane (PhTES), octyltriethoxysilane (OTES), and octadecyltriethoxysilane (ODTES). Morphological properties and the silane precursor type effect on the particle size were investigated using dynamic light scatterin...

We have demonstrated that our patented, crosslinked, sol–gel, epoxy–thiol silicates made from the combination of (a) tetraethoxysilane (TEOS, T), 3-glycidoxypropyltrimethoxysilane (GPTMS, G), and (b) sulfur-containing 3-mercaptopropyltrimethoxysilane (MPTMS, S) with TEOS in a 1:1 stoichiometric ratio form TGST (crosslinked epoxy thiol silicates) coating, which can be successfully utilized for c...

Epoxy polymers, having good mechanical properties and thermal stability, are often used for engineering applications. Their can be further enhanced by the addition of iron oxide (Fe3O4) nanoparticles (NPs) as fillers to resin. In this study, pristine Fe3O4 NPs were functionalized with polydopamine (PDA), (3-glycidoxypropyl)trimethoxysilane (GPTMS), (3-aminopropyl)trimethoxysilane (APTES). X-ray...

Cultural heritage metallic artifacts are often subjected to environmental factors that promote degradation through corrosion processes. Anticorrosion protection is needed both for the long-term preservation of outdoor monuments and short-term conservation archaeological artifacts. In this work, functional nanocoatings based on ZnO nanoparticles (NPs) in a silica matrix prepared as replacement c...