Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free:

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Google Analytics

Targeted advertising cookies


The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal Logo BIA

Home page


Biobased nanoparticles at the interfaces for powdered fluids

Nanocelluloses can stabilize emulsions without surfactants, can they also lead to dry water?
Emulsions are widely used in many applications because they allow easy preparation and application, open the door to controlled or targeted release, and allow encapsulation of any type of active ingredient at low cost. However, liquid emulsions are unstable, difficult to store, constitute large volumes for transport, and are stabilized by surfactants generally issued from petroleum source.
Therefore, this prokect faces a double challenge: on one hand, to limit the amount of surfactants harmful to humans and the environment, and on the other hand, water or oil systems in powder form would be a major advance in terms of energy consumption, storage, dosing for specific applications such as pharmaceuticals or energy storage.
The aim of the DRYWATER project is to meet these two challenges:
First, to provide new sustainable hydrophobic modification routes of biobased particles (cellulose nanocrystals) using enzymatic routes, to stabilize direct or reverse emulsions and surfactant-free foams.
In a second step, to investigate the conditions to prepare emulsions in powder, in the form of "dry oil" or "dry water". The principle is based on emulsions in which the continuous phase carrying the droplets can be dried, forming water or oil droplets in powder form, and thus dry emulsions.

Electron microscopy images of cellulose nanocrystals (CNC) and of a drop whose interface is stabilized by these CNC  (BIBS platform)

© I. Capron, INRAE

  •     Start date - End date of project: February 1, 2021 - July 31, 2024
  •     Funding: ANR (French National Research Agency)
  •     Global budget: 329 k€
  •     Partners involved :
    •         Polymers, Biopolymers, Surfaces Laboratory (PBS) UMR 6270, University of Rouen
    •         Institut Pascal, UMR 6602, University of Clermont Auvergne
  •     Coordination: Isabelle Capron, INRAE BIA, Nantes
  •     BIA team involved: NANO