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(a) Pressure P(cm H2O) vs dimensionless volume V∕V0 for microchannels with flexible membrane and with glass slide. The empty (filled) symbols with error bars in volume are for the rigid (flexible) channel. (b) P vs V∕V0 from the deformation of the thin membrane by subtracting the two data sets in (a), as shown in symbols and comparison with the large deflection theory in the line curve.
