| abstract |
A system for supplying microdroplets to a microfluidic subsystem on demand. A first valve (14) and a first fluid duct (10) are provided. The first valve (14) is connected to a microfluidic subsystem (1) to supply a first liquid, and a second fluid duct (11) is provided. The system 1 is connected to supply the second liquid, the first fluid valve 14 is suitable for closing with a time resolution not worse than 100 ms, and the parameter X1 [Pa − of the first fluid duct 10 is suitable. value X1 [Pa of 1] - 1] = (0.5x10 -9 + 1 / E1) is defined by (α R 1 2 L1 2 / A1), 10 4 Pa - 1 smaller system. In the first fluid duct 10, E1 is the Young's modulus of the material, L1 is the length, A1 is the lumen area, α R 1 is the fluid resistance R 1, the geometrical formula in the equation: R 1 = α R 1 (L 1 μ / A 1 2 ) A constant characterizing the structure, μ is the dynamic viscosity coefficient of the fluid in the R1 measurement. |