Mechanical membrane properties

Reduced chemical interaction between membrane and process solutions Less demanding membrane mechanical property requirements Reduced vapor spaces compared to conventional distillation... 

Titushkin, L, Cho, M. Distinct membrane mechanical properties of human mesenchymal stem cells determined using laser optical tweezers. Biophys. J. 90, 2582-2591 (2006) Titushkin, L, Cho, M. Modulation of cellular mechanics during osteogenic differentiation of human mesenchymal stem cells. Biophys. J. 93, 3693-3702 (2007)... 

The PBI/PBI-PBz-f (thickness 75 pm) composite membrane containing 20 wt% of the PBI-PBz electrospun nano-fiber, of which 10 wt % was the PBz crosslinker, was doped with a phosphoric acid aqueous solution followed by MEA preparation to perform high-temperature fuel cell tests. The phosphoric acid doping level and proton conductivity, membrane mechanical properties, and fuel cell performance of this PBI/PBI-PBz-f composite are listed in Tables 12.3, 12.4, and 12.5, respectively. The data for neat PBI are given for comparison. The PBI/PBI-PBz-f composite membrane showed higher PAdop and a, higher mechanical strength and strain at break, and better fuel cell performance than the neat-PBI membrane. Compared to the hydrophobic porous PTFE film, the... 

Membrane thickness can generally be neglected when it is compared to any cell size. To study the role of the membrane mechanical properties in cell deformability, bilayers or membranes are described as mathematical surfaces, that are homogeneous and of vanishing thickness, whose small shape changes are simply understood using three different elementary deformations characterized by their elastic moduli (Figure 13.1). 

Regardless the suspending medium, Q-P(TDAE)u had no significant effect on Es, which remained in the normal range (2-3.5 pN/m). Basically membrane mechanical properties depend on the cytoskeletal network and on... 

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