Logo CNRS Logo Université Paris Diderot
Logo tutelle Logo tutelle


On this website

On the whole CNRS Web

Home page > Research topics > Hollow shells as organic probes in velocimetry.

Hollow shells as organic probes in velocimetry

MSC : M-A Guedeau-Boudeville, S. Lerouge

Latex beads, successively covered by positively then negatively charged polymers, lead, after latex matrix dissolution, to the creation of hollow, spherical and transparent shells, their rigidity being tuned by the number of layers. These shells are matched in index with water. They are synthezised to replace silica beads usually used as ultrasonic probes to determine the velocity profiles in the flow of giant micelles solutions. Indeed, mineral silica beads have the major disadvantage to exhibit a large difference of index with water that prevents flow birefringence measurements. Furthermore, thanks to a fluorescent dying, these organic shells would be used with another technique, the Particle Image Velocimetry (PIV), allowing simultaneous flow birefringence studies.

Nom des membres actuels ou anciens


General keyword



If some information on this page is erroneous or missing (for instance the list of research topics), please contact the web team (lab-msc-web AT