A new efficient, simple, selective and no-byproducts method for the synthesis of basanite nanoparticles has been developed. Its application will meet current needs associated to the production of these nanoparticles, which can be used in different sectors such as heritage restoration, construction or biomedicine.
Bassanite (CaSO4·0.5H2O) is a calcium sulphate phase, important due to its applications in bone regeneration processes, targeted drug delivery, or as strengthening material of architectonic and/or archaeological works made from gypsum. Nevertheless, its selective production is still a challenge: it is hard and laborious to obtain pure phases, to control calcium sulphate polymorphism, and the particles size and surface area.
In this sense, it becomes of special interest the synthesis of bassanite nanoparticles with a high reactivity along with excellent features for multiple applications. However, due to the problems abovementioned, current methods are too complex, inefficient, or do not get the desired component with the desired properties.
To come to a solution, a novel methodology has been developed. In only three steps, it produces small sized basanite nanoparticles with a large surface area and high reactivity. The main advantage is the selective production of the desired compound, with no by-products.
The method consists of a solvothermal synthesis that starts with a redox reaction between calcium metal and an aliphatic alcohol to produce calcium alkoxides. These will later react with sulfuric acid in the presence of toluene, resulting in an alcoholic suspension of bassanite nanoparticles. Finally, this solvent mixture evaporates to generate nanoparticles in powder form.
By using this method, it will become possible to meet current needs in the fields of heritage restoration, construction, and biomedicine.
ADVANTAGES AND BENEFITS
Current development status
Laboratory prototypes
Desired business relationship
Patent licensing
Applications
Heritage restoration
Construction
Biomedicine
Granada University is one of the most important universities of Spain. The main goal is to transfer technology that our research groups, more than 500, are developing to the industries and companies which are able to take profit from them. It is a general University so Research and Development are offered in different fields like Health Science and Technology, Physics, Chemistry and Mathematics, Environment and Natural Resources, Biotechnology, Information and Communication Technologies, Social, Economic and Legal Sciences....
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