The intriguing deformation behavior of soft biomembranes (INVITED)

Abstract eng:
Extensive experimental investigations revealed unexpected features of the mechanical behaviour of soft biomembranes. A comprehensive protocol including mechanical measurements in different stress states and history of loading was applied to human amnion and ... repeatable mechanical parameters were determined and mechanisms of deformation were identified based on in situ experiments in a multiphoton microscope. This allowed formulating simple model equations able to represent the main features of the observed mechanical response. Liquid phase influx and efflux from the collagenous membrane were shown to play an important role during deformation, and this points at osmotic processes as a mechanism for active control of stress state and membranes deformation.

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