particules janus de variete multiplesJanus particles are dissymmetric particles named in reference to the Roman god Janus. This god was represented with one head but two faces. Janus particles are micro- or nano-objects with two sides having different properties.
This new process can modify any conductive object, from micrometer to sub-micrometer scale with a large spectrum of materials to form a dissymmetric particle. For example, a particle may have both hydrophilic and hydrophobic properties.

This unique feature allows the fabrication of micro or nano-objects comprising two faces of different polarity or chemical activity.
There is an increase of scientific and industrial interest in such Janus particles.
Such particles can be used in a wide range of application like catalysis, therapeutic treatments, textiles, food processing, sensors, imaging…
Unfortunately, because of their unique architecture, Janus particles synthesis remains a challenge.

Most of the technologies currently used to produce such objects do not allow mass productions.

The ProJanus project

Logo de l'ANRThe ProJanus project is financed by the ANR for a duration of 2 years. It has for objective to propose a coherent strategy for the development of the process worked out by the team to make an industrial process.

This scale-up will allow a large-scale production of particles Janus of different natures and  compositions.

During the project, an industrial prototype reactor will be tested, developed and finally used for on demand synthesis of Janus particles specific   for industrial partners.

The final goal is not only to strengthen the intellectual property by applying for additional patents for specific particles, but especially to end in the licencing of the technology to companies which need big quantities, as in the case of consumer applications like electronic paper. In parallel, the launch of a start-up is planned, to produce generic or specific  Janus particles.

The objectives are:

  • To develop an industrial reactor allowing the synthesis of several kilos in simultaneous,
  • To apply for additional patents,
  • To licensing the technique to interested industrial,
  • Creation of a start-up.