▁existence ▁of ▁wave ▁interactions ▁and ▁sp on ge ▁phases . ▁This ▁work ▁is ▁of ▁interest ▁to ▁the ▁oil ▁industry ▁and ▁particularly ▁to ▁Ex x on , ▁where ▁he ▁was ▁appointed ▁associate ▁scient ist ▁in ▁ 1 9 8 6 . ▁Research ▁director ▁at ▁the ▁C N RS ▁in ▁Bor de aux , ▁he ▁discovered ▁a ▁new ▁type ▁of ▁inst ability , ▁the ▁on ion ▁phases ▁corresponding ▁to ▁a ▁dynamic ▁transition ▁from ▁a ▁l am ell ar ▁phase ▁orient ed ▁towards ▁a ▁mult il am ell ar ▁ves icle ▁phase . ▁These ▁ves icles ▁are ▁used ▁as ▁micro ▁chemical ▁react ors ▁or ▁as ▁bi ological ▁vectors . ▁He ▁co - f ounded ▁two ▁bi ote chn ology ▁start ups ▁C aps ul is , ▁special ized ▁in ▁the ▁micro enc aps ulation ▁of ▁active ▁subst ances , ▁and ▁R he o control , ▁which ▁mark ets ▁new ▁r he om eters . ▁In ▁ 1 9 9 8 , ▁he ▁was ▁appointed ▁Deput y ▁Scient ific ▁Director ▁of ▁Rh ône - P ou len c ▁and ▁then ▁director ▁of ▁research ▁and ▁innov ation ▁of ▁Saint - G ob ain ▁in ▁ 2 0 0 5 . ▁R oux ▁was ▁a ▁member ▁of ▁the ▁scientific ▁board ▁of ▁the ▁Institut ▁Cur ie , ▁the ▁ESP CI ▁Paris T ech ▁and ▁the ▁board ▁of ▁direct ors ▁of ▁E NS ▁Lyon . ▁He ▁was ▁appointed ▁chairman ▁of ▁the ▁Scient ific ▁Council ▁of ▁A DE ME ▁in ▁ 2 0 1 3 ▁and ▁chairman ▁of ▁the ▁Scient ific ▁Council