The laboratory of Prof. Xavier Banquy at Université de Montréal is seeking a motivated PhD candidate to investigate interaction forces between biomimetic surfaces at the nanoscale. This project moves beyond static descriptions to reveal how external fields reprogram force–distance laws and binding kinetics in real time.

Research tracks

Track 1 — Electro-stimulation in weak electrolytes: Apply AC electric fields to polarize interfaces and drive induced-charge electro-osmosis, reorganizing ion clouds faster than diffusion. Quantify time-dependent zeta potentials and Debye lengths to switch double-layer repulsion and steer ligand–receptor encounters on demand.

Track 2 — Acoustic actuation in nanogaps: Use high-frequency out-of-plane vibrations to generate squeeze-film pressures and acoustic streaming, modulating hydrodynamic drainage and confinement, and thus tuning the balance among dispersion, hydration, and electrostatic forces.

By coupling rapid field actuation with force spectroscopy and advanced imaging, the project will map how ion transport and micro-fluid dynamics couple to interfacial energetics, explaining field-responsive changes that remain hidden in equilibrium-centric models. The resulting insights will feed directly into technologies under development to enhance drug administration, penetration, and pharmacokinetics, and to dynamically control tissue–device interfaces.

This PhD offers rigorous training at the interface of physical chemistry, soft matter, and bioengineering, ideal for ambitious young scientists eager to turn fundamental discovery into real-world impact.

Funding of the project

Federal funding is confirmed (Canada Research Chair) for the whole duration of the PhD (4 years). 

Presentation of the host laboratory

University of Montreal’s main campus is located at the heart of Montreal city, the most vibrant city for pursuing graduate studies in North America. Recent surveys have placed Montreal as the best place to study in the world and University of Montreal as one of the best universities of the world. Pr Banquy laboratory is located in this unique environment and offers world class research facilities to students willing to pursue their career in materials engineering.

Website : http://xbanquy.wix.com/labo-banquy-lab

Profile of the candidate

The candidate must be highly motivated by research and material science. Prior experience in an experimental research laboratory is mandatory.
Desired qualities are:

• Experience in experimental research in one of the following fields is recommended: materials mechanics, nanotechnology, biomaterials, nanoscale surface characterization, force measurements
• High motivation to carry out a multidisciplinary research projects at the interface of engineering, chemistry and biophysics
• Strong appetite for experimentation
• Proficiency in spoken and written English
• Team spirit Scientific curiosity 

To apply:

Send transcripts of the bachelor and master, cover letter, up-to-date CV with names of at least two references to xavier.banquy@umontreal.ca