Novel bassanite nanoparticles production method

  • Lucas from Universidad de Granada
  • From Spain
  • Responsive
  • Patents for licensing

Summary of the technology

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.

Universidad de Granada

Details of the Technology Offer

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.


  • Simple method.It consists of only three steps that take place in accessible conditions.
  • Selective production.The only calcium sulphate phase obtained is bassanite.
  • No by-products.With this method, no compounds other than calcium sulphate are produced.
  • Resulting nanoparticles are small-sized, with a high surface area and reactivity.
  • High global yield.The general reaction, calculated over the mass of the produced bassanite related to the theoretical mass, is equal or greater than 95%.

Current development status

Laboratory prototypes

Desired business relationship

Patent licensing


Heritage restoration



Intellectual property status

  • Patent already applied for
  • Patent application number :P202130657

Related Keywords

  • Micro- and Nanotechnology
  • Microengineering and nanoengineering
  • Cultural Heritage
  • Biodiversity / Natural Heritage
  • Construction engineering (design, simulation)
  • Construction Technology
  • Medical Technology / Biomedical Engineering
  • nanobassanite
  • production method
  • nanogypsum
  • alkoxide
  • calcium sulphate

About Universidad de Granada

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....

We hope you find technologies of your interest which will allow us working together in the near future.

Lucas Montes Pérez

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