User blog: Ramón G. Rubio

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A 24 month postdoc contract is open for carrying out research at Complutense University of Madrid (Spain) as part of a Marie Curie training network of the VII Framework Program of the European Union. The position is available starting from January 2014.

Controlling the spreading of complex fluids on micro- and nanostructured substrates is a great challenge at the crossroad of Mathematics, Physics, Chemistry and Engineering/Industry. Complex liquids are structured at different length scales and thus have various internal degrees of freedom, e.g. dispersions, polymer melts or solutions, surfactant solutions, emulsions and foams. Complex surfaces include solid or soft substrates showing ordered or random topological patterns, chemical heterogeneities, porosity with typical length scales in the micro- or nanometer range, adaptable or switchable coatings and viscoelastic substrates. The work will include also the characterization of the behavior of both the liquid/solid and the liquid/vapor interfaces. The project includes both experimental and theoretical developments. The project will be carried out in cooperation with groups at Loughborough University (U.K.) and Max Planck Institute of Polymers (Mainz, Germany) and of Colloids and Interfaces (Potsdam-Golm, Germany)

Detailed information about available projects can be found at the websites:

Experienced researchers (ERs) shall at the time of recruitment by the host organisation be in possession of a doctoral degree or have at least four years of full-time equivalent research experience. In ITN, experienced researchers shall also, at the time of recruitment by the host organization, have less than five years experience of full-time equivalent research experience.

Full-time equivalent research experience is measured from the date when a researcher obtained the degree which would formally entitle him or her to embark on a doctorate, either in the country in which the degree was obtained or in the country in which the researcher is recruited, irrespective of whether or not a doctorate is or was ever envisaged.

At the time of recruitment by the host organization researchers shall not have resided or carried out their main activity (work, studies, etc.) in the country of their host organization for more than 12 months in the 3 years immediately prior to the reference date. Compulsory national service and/or short stays such as holidays are not taken into account. Salary is fixed by the Marie Curie Program.


Contact: Prof. Ramon G. Rubio,; Prof. Manuel G. Velarde,;

Anyone in the world

Monolayers at liquid/air and liquid/liquid interfaces play a key role in stabilizing complex fluid systems, such as emulsions and foams, as well as in controlling the mass transfer through the interface, e.g. multiphase reactors. Besides interfacial tension, interfacial rheology (both dilational and shear) is known to determine the behavior of systems in which interfaces play an important role.

During the Ph.D. project the candidate will set-up an equipment for measuring the high-frequency dilational rheology (elasticity and viscosity), and will perform studies of dilational and shear rheology studies of polyelectrolyte + surfactant mixtures of cosmetic interest, and of polyelectrolyte + particle systems. Different experimental techniques already existing in the laboratory will be combined to cover a broad frequency range (0.01 Hz – 2 MHz). Special attention will be paid to the description of the interfacial rheology at low frequencies in the low-frequency range.

The project will be done in close cooperation with the laboratory of Dr. Reinhard Miller at Max Planck Institute for Colloids and Interfaces (Potsdam-Golm, Germany), where the student will perform some of the experiments. The economic conditions will be those established for Spain by the People Action – Marie Curie Program of the European Union.

The candidate should hold a Master Degree (Chemistry, Physics, Chemical Engineering), should be fluent in English, and preferably should have some background on Colloids and Interfaces.


Prof. Ramon G. Rubio

Department of Physical Chemistry I, Faculty of Chemistry

Complutense University

Ciudad Universitaria, 28040-Madrid, Spain.

Phone: +34-913944123

Fax: +34-913944135

E-mail: ,