Abstract text

Microfluidic flow devices for determining parameters of a physical and/or chemical transformation include a body (2), at least one flow microchannel (36) for transferring a mixture (G; T′) of at least two components, such microchannel being formed within the body (2), the or each flow microchannel (36) opening out into at least one fork (D₁-D₆; D′₁-D′₆; D″₁-D″_n; d₁-d_n; d′₁-d′_n) enabling a tree structure to be created having a plurality of derived branches (B₁-B₆; B′₁-B′₆; B″₁-B″_n; b₁-b_n; b′₁-b′_n), this tree structure being asymmetrical.