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Publication Citation: AN ANALYTICAL SOLUTION FOR FLEXIBLE SUBSTRATES UNDERGOING SMALL EQUIBIAXIAL STRAINS

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Author(s): Martin Y. Chiang; Joy P. Dunkers;
Title: AN ANALYTICAL SOLUTION FOR FLEXIBLE SUBSTRATES UNDERGOING SMALL EQUIBIAXIAL STRAINS
Published: June 17, 2009
Abstract: Cells can distinguish between different types of mechanical signals, such as stretch (tension), pressure (compression), and shear, to guide mechanosensitive cellular activities. Cell culture systems with controlled delivery of a mechanical input such as substrate strain, hydrostatic pressure, or fluid shear stress are used for the in vitro application of these forces. The work reported here uses a system that imparts equibiaxial loading on a flexible substrate to study cell response to stretch, similar to the Bioflex in the Flexcell family of products. The objective of this study is to introduce an analytical (closed-form) solution of the relationship between the substrate strain and pressure under small strains, less than 2%. The solution is derived from the superposition of two elastic responses induced in the equibiaxial strain culture system after applying pressure.
Proceedings: ASME 2009 Summer Bioengineering Conference
Location: Lake Tahoe, CA
Dates: June 17-21, 2009
Keywords: Cell Culture, Flexcell, Strain-Pressure
Research Areas: Bioscience & Health