Interfacial instabilitites in flow displacements of nano-particle suspensions

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New techniques have allowed in the past years to manufacture very small particles (~1 millionth of a millimetre) that are known as nano-particles. These particles have lead to new applications in various fields such as the environmental, oil, biotechnology and pharmaceutical industries. Due to their very small size, such particles can be injected in media that have very small pores and used for important applications such as the enhanced recovery of oil in reservoirs or the remediation of contaminated soils. With these new applications came important issues related to how to follow and control the transport of such particles in the media. Today, there is a real need to optimize the use of such particles but also to prevent any possible uncontrollable migration of the nano-particles that may pose health problems.